diff --git a/admob/integration_test/AndroidManifest.xml b/admob/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..0996b3d0df
--- /dev/null
+++ b/admob/integration_test/AndroidManifest.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.admob.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <!-- You may replace the sample Admob App ID below with your own App ID. -->
+    <meta-data
+        android:name="com.google.android.gms.ads.APPLICATION_ID"
+        android:value="ca-app-pub-3940256099942544~3347511713"/>
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+        <action android:name="com.google.intent.action.TEST_LOOP"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/admob/integration_test/CMakeLists.txt b/admob/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..fdc3fbcd58
--- /dev/null
+++ b/admob/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_admob firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/admob/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/admob/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/admob/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/admob/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/admob/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/admob/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/admob/integration_test/Info.plist b/admob/integration_test/Info.plist
new file mode 100644
index 0000000000..a3e8956703
--- /dev/null
+++ b/admob/integration_test/Info.plist
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>GADApplicationIdentifier</key>
+	<string>ca-app-pub-3940256099942544~1458002511</string>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.ios.admob.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+</dict>
+</plist>
diff --git a/admob/integration_test/LaunchScreen.storyboard b/admob/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/admob/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/admob/integration_test/LibraryManifest.xml b/admob/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..e1d761e160
--- /dev/null
+++ b/admob/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.admob.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='16'/>
+    <application />
+</manifest>
diff --git a/admob/integration_test/Podfile b/admob/integration_test/Podfile
new file mode 100644
index 0000000000..23b23b5411
--- /dev/null
+++ b/admob/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase AdMob test application.
+
+target 'integration_test' do
+  pod 'Firebase/AdMob', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/admob/integration_test/build.gradle b/admob/integration_test/build.gradle
new file mode 100644
index 0000000000..1b40229275
--- /dev/null
+++ b/admob/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.admob.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  admob
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/admob/integration_test/googletest.cmake b/admob/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/admob/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/admob/integration_test/gradle/wrapper/gradle-wrapper.jar b/admob/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/admob/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/admob/integration_test/gradle/wrapper/gradle-wrapper.properties b/admob/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/admob/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/admob/integration_test/gradlew b/admob/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/admob/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/admob/integration_test/gradlew.bat b/admob/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/admob/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/admob/integration_test/integration_test.xcodeproj/project.pbxproj b/admob/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..57e3561511
--- /dev/null
+++ b/admob/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,409 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
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+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
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+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
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+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+				FF88C17A940D28F103913070 /* libPods-integration_test.a in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+				78E4FA177005E3E6FE395AE2 /* Pods */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
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+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
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+				529226EE1C85F68000C89379 /* XCTest.framework */,
+				8E4B91AFE2AFA744509A9C25 /* libPods-integration_test.a */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+		78E4FA177005E3E6FE395AE2 /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				BFA4C698DDB19F60D12FED3A /* Pods-integration_test.debug.xcconfig */,
+				1878FBCB416E0920F536416B /* Pods-integration_test.release.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				7DBB351D9F7518B4E087635C /* [CP] Check Pods Manifest.lock */,
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
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+			productType = "com.apple.product-type.application";
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+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
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+				GCC_PREPROCESSOR_DEFINITIONS = (
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+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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+				ONLY_ACTIVE_ARCH = YES;
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+			name = Debug;
+		};
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+			isa = XCBuildConfiguration;
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+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
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+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
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+				GCC_C_LANGUAGE_STANDARD = gnu99;
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+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = BFA4C698DDB19F60D12FED3A /* Pods-integration_test.debug.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 1878FBCB416E0920F536416B /* Pods-integration_test.release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
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+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/admob/integration_test/proguard.pro b/admob/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/admob/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/admob/integration_test/res/layout/main.xml b/admob/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/admob/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/admob/integration_test/res/values/strings.xml b/admob/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..f38ec9de9d
--- /dev/null
+++ b/admob/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase AdMob Integration Test</string>
+</resources>
diff --git a/admob/integration_test/settings.gradle b/admob/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/admob/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/admob/integration_test/src/integration_test.cc b/admob/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..b97fbba2ef
--- /dev/null
+++ b/admob/integration_test/src/integration_test.cc
@@ -0,0 +1,552 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/admob.h"
+#include "firebase/app.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+#if defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+// includes for phone-only tests.
+#include <pthread.h>
+#include <semaphore.h>
+#endif  // defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+// The AdMob app IDs for the test app.
+#if defined(__ANDROID__)
+// If you change the AdMob app ID for your Android app, make sure to change it
+// in AndroidManifest.xml as well.
+const char* kAdMobAppID = "ca-app-pub-3940256099942544~3347511713";
+#else
+// If you change the AdMob app ID for your iOS app, make sure to change the
+// value for "GADApplicationIdentifier" in your Info.plist as well.
+const char* kAdMobAppID = "ca-app-pub-3940256099942544~1458002511";
+#endif
+
+// These ad units IDs have been created specifically for testing, and will
+// always return test ads.
+#if defined(__ANDROID__)
+const char* kBannerAdUnit = "ca-app-pub-3940256099942544/6300978111";
+const char* kInterstitialAdUnit = "ca-app-pub-3940256099942544/1033173712";
+const char* kRewardedVideoAdUnit = "ca-app-pub-3940256099942544/5224354917";
+#else
+const char* kBannerAdUnit = "ca-app-pub-3940256099942544/2934735716";
+const char* kInterstitialAdUnit = "ca-app-pub-3940256099942544/4411468910";
+const char* kRewardedVideoAdUnit = "ca-app-pub-3940256099942544/1712485313";
+#endif
+
+using app_framework::LogDebug;
+using app_framework::ProcessEvents;
+
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseAdMobTest : public FirebaseTest {
+ public:
+  FirebaseAdMobTest();
+  ~FirebaseAdMobTest() override;
+
+  static void SetUpTestSuite();
+  static void TearDownTestSuite();
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  firebase::admob::AdRequest GetAdRequest();
+
+  static firebase::App* shared_app_;
+};
+
+firebase::App* FirebaseAdMobTest::shared_app_ = nullptr;
+
+void FirebaseAdMobTest::SetUpTestSuite() {
+  LogDebug("Initialize Firebase App.");
+
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+
+#if defined(__ANDROID__)
+  shared_app_ = ::firebase::App::Create(app_framework::GetJniEnv(),
+                                        app_framework::GetActivity());
+#else
+  shared_app_ = ::firebase::App::Create();
+#endif  // defined(__ANDROID__)
+
+  LogDebug("Initializing AdMob.");
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(
+      shared_app_, nullptr, [](::firebase::App* app, void* /* userdata */) {
+        LogDebug("Try to initialize AdMob");
+        return ::firebase::admob::Initialize(*app, kAdMobAppID);
+      });
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized AdMob.");
+}
+
+void FirebaseAdMobTest::TearDownTestSuite() {
+  LogDebug("Shutdown AdMob.");
+  firebase::admob::Terminate();
+  LogDebug("Shutdown Firebase App.");
+  delete shared_app_;
+  shared_app_ = nullptr;
+}
+
+FirebaseAdMobTest::FirebaseAdMobTest() {}
+
+FirebaseAdMobTest::~FirebaseAdMobTest() {}
+
+void FirebaseAdMobTest::SetUp() { FirebaseTest::SetUp(); }
+
+void FirebaseAdMobTest::TearDown() { FirebaseTest::TearDown(); }
+
+firebase::admob::AdRequest FirebaseAdMobTest::GetAdRequest() {
+  // Sample keywords to use in making the request.
+  static const char* kKeywords[] = {"AdMob", "C++", "Fun"};
+
+  // Sample birthday value to use in making the request.
+  static const int kBirthdayDay = 10;
+  static const int kBirthdayMonth = 11;
+  static const int kBirthdayYear = 1976;
+
+  // Sample test device IDs to use in making the request.
+  static const char* kTestDeviceIDs[] = {"2077ef9a63d2b398840261c8221a0c9b",
+                                         "098fe087d987c9a878965454a65654d7"};
+
+  firebase::admob::AdRequest request;
+  // If the app is aware of the user's gender, it can be added to the targeting
+  // information. Otherwise, "unknown" should be used.
+  request.gender = firebase::admob::kGenderUnknown;
+
+  // This value allows publishers to specify whether they would like the request
+  // to be treated as child-directed for purposes of the Children’s Online
+  // Privacy Protection Act (COPPA).
+  // See http://business.ftc.gov/privacy-and-security/childrens-privacy.
+  request.tagged_for_child_directed_treatment =
+      firebase::admob::kChildDirectedTreatmentStateTagged;
+
+  // The user's birthday, if known. Note that months are indexed from one.
+  request.birthday_day = kBirthdayDay;
+  request.birthday_month = kBirthdayMonth;
+  request.birthday_year = kBirthdayYear;
+
+  // Additional keywords to be used in targeting.
+  request.keyword_count = sizeof(kKeywords) / sizeof(kKeywords[0]);
+  request.keywords = kKeywords;
+
+  // "Extra" key value pairs can be added to the request as well. Typically
+  // these are used when testing new features.
+  static const firebase::admob::KeyValuePair kRequestExtras[] = {
+      {"the_name_of_an_extra", "the_value_for_that_extra"}};
+  request.extras_count = sizeof(kRequestExtras) / sizeof(kRequestExtras[0]);
+  request.extras = kRequestExtras;
+
+  // This example uses ad units that are specially configured to return test ads
+  // for every request. When using your own ad unit IDs, however, it's important
+  // to register the device IDs associated with any devices that will be used to
+  // test the app. This ensures that regardless of the ad unit ID, those
+  // devices will always receive test ads in compliance with AdMob policy.
+  //
+  // Device IDs can be obtained by checking the logcat or the Xcode log while
+  // debugging. They appear as a long string of hex characters.
+  request.test_device_id_count =
+      sizeof(kTestDeviceIDs) / sizeof(kTestDeviceIDs[0]);
+  request.test_device_ids = kTestDeviceIDs;
+  return request;
+}
+
+// Test cases below.
+
+TEST_F(FirebaseAdMobTest, TestGetAdRequest) { GetAdRequest(); }
+
+// A simple listener to help test changes to a BannerView.
+class TestBannerViewListener : public firebase::admob::BannerView::Listener {
+ public:
+  void OnPresentationStateChanged(
+      firebase::admob::BannerView* banner_view,
+      firebase::admob::BannerView::PresentationState state) override {
+    presentation_states_.push_back(state);
+  }
+  void OnBoundingBoxChanged(firebase::admob::BannerView* banner_view,
+                            firebase::admob::BoundingBox box) override {
+    bounding_box_changes_.push_back(box);
+  }
+  std::vector<firebase::admob::BannerView::PresentationState>
+      presentation_states_;
+  std::vector<firebase::admob::BoundingBox> bounding_box_changes_;
+};
+
+TEST_F(FirebaseAdMobTest, TestBannerView) {
+  // AdMob cannot be tested on Firebase Test Lab, so disable tests on FTL.
+  TEST_REQUIRES_USER_INTERACTION;
+
+  static const int kBannerWidth = 320;
+  static const int kBannerHeight = 50;
+
+  firebase::admob::AdSize banner_ad_size;
+  banner_ad_size.ad_size_type = firebase::admob::kAdSizeStandard;
+  banner_ad_size.width = kBannerWidth;
+  banner_ad_size.height = kBannerHeight;
+
+  firebase::admob::BannerView* banner = new firebase::admob::BannerView();
+  WaitForCompletion(banner->Initialize(app_framework::GetWindowContext(),
+                                       kBannerAdUnit, banner_ad_size),
+                    "Initialize");
+
+  // Set the listener.
+  TestBannerViewListener banner_listener;
+  banner->SetListener(&banner_listener);
+
+  // Load the banner ad.
+  firebase::admob::AdRequest request = GetAdRequest();
+  WaitForCompletion(banner->LoadAd(request), "LoadAd");
+
+  std::vector<firebase::admob::BannerView::PresentationState>
+      expected_presentation_states;
+  int expected_num_bounding_box_changes = 0;
+
+  // Make the BannerView visible.
+  WaitForCompletion(banner->Show(), "Show 0");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  // Move to each of the six pre-defined positions.
+
+  WaitForCompletion(banner->MoveTo(firebase::admob::BannerView::kPositionTop),
+                    "MoveTo(Top)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(
+      banner->MoveTo(firebase::admob::BannerView::kPositionTopLeft),
+      "MoveTo(TopLeft)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(
+      banner->MoveTo(firebase::admob::BannerView::kPositionTopRight),
+      "MoveTo(TopRight)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(
+      banner->MoveTo(firebase::admob::BannerView::kPositionBottom),
+      "Moveto(Bottom)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(
+      banner->MoveTo(firebase::admob::BannerView::kPositionBottomLeft),
+      "MoveTo(BottomLeft)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(
+      banner->MoveTo(firebase::admob::BannerView::kPositionBottomRight),
+      "MoveTo(BottomRight)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  // Move to some coordinates.
+  WaitForCompletion(banner->MoveTo(100, 300), "MoveTo(x0, y0)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(banner->MoveTo(100, 400), "MoveTo(x1, y1)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  // Try hiding and showing the BannerView.
+  WaitForCompletion(banner->Hide(), "Hide 1");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateHidden);
+
+  WaitForCompletion(banner->Show(), "Show 1");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  // Move again after hiding/showing.
+  WaitForCompletion(banner->MoveTo(100, 300), "MoveTo(x2, y2)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(banner->MoveTo(100, 400), "Moveto(x3, y3)");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateVisibleWithAd);
+  expected_num_bounding_box_changes++;
+
+  WaitForCompletion(banner->Hide(), "Hide 2");
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateHidden);
+
+  delete banner;
+  expected_presentation_states.push_back(
+      firebase::admob::BannerView::kPresentationStateHidden);
+  expected_num_bounding_box_changes++;
+
+#if defined(__ANDROID__) || TARGET_OS_IPHONE
+  // Ensure that we got all the presentation state changes.
+  EXPECT_EQ(banner_listener.presentation_states_, expected_presentation_states);
+
+  // For the bounding box, check that we got the number of bounding box events
+  // we expect, since we don't know the exact bounding box coordinates to
+  // expect.
+  EXPECT_EQ(banner_listener.bounding_box_changes_.size(),
+            expected_num_bounding_box_changes);
+
+  // As an extra check, all bounding boxes except the last should have the same
+  // size aspect ratio that we requested. For example if you requested a 320x50
+  // banner, you can get one with the size 960x150. Use EXPECT_NEAR because the
+  // calculation can have a small bit of error.
+  double kAspectRatioAllowedError = 0.02;  // Allow about 2% of error.
+  double expected_aspect_ratio =
+      static_cast<double>(kBannerWidth) / static_cast<double>(kBannerHeight);
+  for (int i = 0; i < banner_listener.bounding_box_changes_.size() - 1; ++i) {
+    double actual_aspect_ratio =
+        static_cast<double>(banner_listener.bounding_box_changes_[i].width) /
+        static_cast<double>(banner_listener.bounding_box_changes_[i].height);
+    EXPECT_NEAR(actual_aspect_ratio, expected_aspect_ratio,
+                kAspectRatioAllowedError)
+        << "Banner size " << banner_listener.bounding_box_changes_[i].width
+        << "x" << banner_listener.bounding_box_changes_[i].height
+        << " does not have the same aspect ratio as requested size "
+        << kBannerWidth << "x" << kBannerHeight << ".";
+  }
+
+  // And finally, the last bounding box change, when the banner is deleted,
+  // should be (0,0,0,0).
+  EXPECT_TRUE(banner_listener.bounding_box_changes_.back().x == 0 &&
+              banner_listener.bounding_box_changes_.back().y == 0 &&
+              banner_listener.bounding_box_changes_.back().width == 0 &&
+              banner_listener.bounding_box_changes_.back().height == 0);
+#endif
+}
+
+// A simple listener to help test changes to a InterstitialAd.
+class TestInterstitialAdListener
+    : public firebase::admob::InterstitialAd::Listener {
+ public:
+  void OnPresentationStateChanged(
+      firebase::admob::InterstitialAd* interstitial_ad,
+      firebase::admob::InterstitialAd::PresentationState state) override {
+    presentation_states_.push_back(state);
+  }
+  std::vector<firebase::admob::InterstitialAd::PresentationState>
+      presentation_states_;
+};
+
+TEST_F(FirebaseAdMobTest, TestInterstitialAd) {
+  TEST_REQUIRES_USER_INTERACTION;
+
+  firebase::admob::InterstitialAd* interstitial =
+      new firebase::admob::InterstitialAd();
+  WaitForCompletion(interstitial->Initialize(app_framework::GetWindowContext(),
+                                             kInterstitialAdUnit),
+                    "Initialize");
+  TestInterstitialAdListener interstitial_listener;
+  interstitial->SetListener(&interstitial_listener);
+
+  firebase::admob::AdRequest request = GetAdRequest();
+  // When the InterstitialAd is initialized, load an ad.
+  WaitForCompletion(interstitial->LoadAd(request), "LoadAd");
+  std::vector<firebase::admob::InterstitialAd::PresentationState>
+      expected_presentation_states;
+
+  WaitForCompletion(interstitial->Show(), "Show");
+  expected_presentation_states.push_back(
+      firebase::admob::InterstitialAd::PresentationState::
+          kPresentationStateCoveringUI);
+  // Wait for the user to close the interstitial ad.
+  while (interstitial->presentation_state() !=
+         firebase::admob::InterstitialAd::PresentationState::
+             kPresentationStateHidden) {
+    app_framework::ProcessEvents(1000);
+  }
+  expected_presentation_states.push_back(
+      firebase::admob::InterstitialAd::PresentationState::
+          kPresentationStateHidden);
+#if defined(__ANDROID__) || TARGET_OS_IPHONE
+  EXPECT_EQ(interstitial_listener.presentation_states_,
+            expected_presentation_states);
+#endif
+  delete interstitial;
+}
+
+// A simple listener to help test changes to rewarded video state.
+class TestRewardedVideoListener
+    : public firebase::admob::rewarded_video::Listener {
+ public:
+  TestRewardedVideoListener() { got_reward_ = false; }
+  void OnRewarded(firebase::admob::rewarded_video::RewardItem reward) override {
+    got_reward_ = true;
+    reward_type_ = reward.reward_type;
+    reward_amount_ = reward.amount;
+  }
+  void OnPresentationStateChanged(
+      firebase::admob::rewarded_video::PresentationState state) override {
+    presentation_states_.push_back(state);
+  }
+  bool got_reward_;
+  std::string reward_type_;
+  float reward_amount_;
+  std::vector<firebase::admob::rewarded_video::PresentationState>
+      presentation_states_;
+};
+
+TEST_F(FirebaseAdMobTest, TestRewardedVideoAd) {
+  TEST_REQUIRES_USER_INTERACTION;
+
+  namespace rewarded_video = firebase::admob::rewarded_video;
+  WaitForCompletion(rewarded_video::Initialize(), "Initialize");
+
+  TestRewardedVideoListener rewarded_listener;
+  rewarded_video::SetListener(&rewarded_listener);
+
+  firebase::admob::AdRequest request = GetAdRequest();
+  WaitForCompletion(rewarded_video::LoadAd(kRewardedVideoAdUnit, request),
+                    "LoadAd");
+
+  std::vector<rewarded_video::PresentationState> expected_presentation_states;
+
+  WaitForCompletion(rewarded_video::Show(app_framework::GetWindowContext()),
+                    "Show");
+
+  expected_presentation_states.push_back(
+      rewarded_video::PresentationState::kPresentationStateCoveringUI);
+  expected_presentation_states.push_back(
+      rewarded_video::PresentationState::kPresentationStateVideoHasStarted);
+
+  // Wait a moment, then pause, then resume.
+  ProcessEvents(1000);
+  WaitForCompletion(rewarded_video::Pause(), "Pause");
+  ProcessEvents(1000);
+  WaitForCompletion(rewarded_video::Resume(), "Resume");
+
+#if defined(__ANDROID__) || TARGET_OS_IPHONE
+  // Wait for video to complete.
+  while (
+      rewarded_listener.presentation_states_.back() !=
+      rewarded_video::PresentationState::kPresentationStateVideoHasCompleted) {
+    ProcessEvents(1000);
+  }
+  expected_presentation_states.push_back(
+      rewarded_video::PresentationState::kPresentationStateVideoHasCompleted);
+
+  EXPECT_TRUE(rewarded_listener.got_reward_);
+  EXPECT_NE(rewarded_listener.reward_type_, "");
+  EXPECT_NE(rewarded_listener.reward_amount_, 0);
+  LogDebug("Got reward: %.02f %s", rewarded_listener.reward_amount_,
+           rewarded_listener.reward_type_.c_str());
+
+  EXPECT_EQ(rewarded_listener.presentation_states_,
+            expected_presentation_states);
+#endif
+  rewarded_video::Destroy();
+}
+
+#if defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+// Test runs & compiles for phones only.
+
+struct ThreadArgs {
+      firebase::admob::BannerView* banner;
+      sem_t* semaphore;
+};
+
+static void* DeleteBannerViewOnSignal(void* args) {
+  ThreadArgs* thread_args = static_cast<ThreadArgs*>(args);
+  sem_wait(thread_args->semaphore);
+  delete thread_args->banner;
+  return nullptr;
+}
+
+TEST_F(FirebaseAdMobTest, TestBannerViewMultithreadDeletion) {
+  SKIP_TEST_ON_DESKTOP;
+
+  static const int kBannerWidth = 320;
+  static const int kBannerHeight = 50;
+
+  firebase::admob::AdSize banner_ad_size;
+  banner_ad_size.ad_size_type = firebase::admob::kAdSizeStandard;
+  banner_ad_size.width = kBannerWidth;
+  banner_ad_size.height = kBannerHeight;
+
+  for (int i = 0; i < 5; ++i) {
+    firebase::admob::BannerView* banner = new firebase::admob::BannerView();
+    WaitForCompletion(banner->Initialize(app_framework::GetWindowContext(),
+                                         kBannerAdUnit, banner_ad_size),
+                      "Initialize");
+    sem_t semaphore;
+    sem_init(&semaphore, 0, 1);
+
+    ThreadArgs args = {banner, &semaphore};
+
+    pthread_t t1;
+    int err = pthread_create(&t1, nullptr, &DeleteBannerViewOnSignal, &args);
+    EXPECT_EQ(err, 0);
+
+    banner->Destroy();
+    sem_post(&semaphore);
+
+    // Blocks until DeleteBannerViewOnSignal function is done.
+    void* result = nullptr;
+    err = pthread_join(t1, &result);
+
+    EXPECT_EQ(err, 0);
+    EXPECT_EQ(result, nullptr);
+
+    sem_destroy(&semaphore);
+  }
+}
+#endif  // #if defined(ANDROID) || (defined(TARGET_OS_IPHONE) &&
+        // TARGET_OS_IPHONE)
+
+}  // namespace firebase_testapp_automated
diff --git a/analytics/integration_test/AndroidManifest.xml b/analytics/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..9acf51d9d2
--- /dev/null
+++ b/analytics/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.analytics.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/analytics/integration_test/CMakeLists.txt b/analytics/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..7d2609824d
--- /dev/null
+++ b/analytics/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_analytics firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/analytics/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/analytics/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/analytics/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/analytics/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/analytics/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/analytics/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/analytics/integration_test/Info.plist b/analytics/integration_test/Info.plist
new file mode 100644
index 0000000000..3e13e24ba6
--- /dev/null
+++ b/analytics/integration_test/Info.plist
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.ios.analytics.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/analytics/integration_test/LaunchScreen.storyboard b/analytics/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/analytics/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/analytics/integration_test/LibraryManifest.xml b/analytics/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..5e886a778c
--- /dev/null
+++ b/analytics/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.analytics.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='16'/>
+    <application />
+</manifest>
diff --git a/analytics/integration_test/Podfile b/analytics/integration_test/Podfile
new file mode 100644
index 0000000000..5ab82b3642
--- /dev/null
+++ b/analytics/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Analytics test application.
+
+target 'integration_test' do
+  pod 'Firebase/Analytics', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/analytics/integration_test/build.gradle b/analytics/integration_test/build.gradle
new file mode 100644
index 0000000000..a1d574b5e4
--- /dev/null
+++ b/analytics/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.analytics.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  analytics
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/analytics/integration_test/googletest.cmake b/analytics/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/analytics/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/analytics/integration_test/gradle/wrapper/gradle-wrapper.jar b/analytics/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/analytics/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/analytics/integration_test/gradle/wrapper/gradle-wrapper.properties b/analytics/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/analytics/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/analytics/integration_test/gradlew b/analytics/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/analytics/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/analytics/integration_test/gradlew.bat b/analytics/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/analytics/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/analytics/integration_test/integration_test.xcodeproj/project.pbxproj b/analytics/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/analytics/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/analytics/integration_test/proguard.pro b/analytics/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/analytics/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/analytics/integration_test/readme.md b/analytics/integration_test/readme.md
new file mode 100644
index 0000000000..18599e5952
--- /dev/null
+++ b/analytics/integration_test/readme.md
@@ -0,0 +1,184 @@
+Firebase Analytics Quickstart
+==============================
+
+The Firebase Analytics Sample demonstrates logging a range of different events
+using the Firebase Analytics C++ SDK.  The application has no user interface and
+simply logs actions it's performing to the console.
+
+Introduction
+------------
+
+- [Read more about Firebase Analytics](https://firebase.google.com/docs/analytics/)
+
+Building and Running the sample
+-------------------------------
+
+### iOS
+  - Link your iOS app to the Firebase libraries.
+    - Get CocoaPods version 1 or later by running,
+        ```
+        sudo gem install cocoapods --pre
+        ```
+    - From the sample directory, install the CocoaPods listed in the Podfile
+      by running,
+        ```
+        pod install
+        ```
+    - Open the generated Xcode workspace (which now has the CocoaPods),
+        ```
+        open sample.xcworkspace
+        ```
+    - For further details please refer to the
+      [general instructions for setting up an iOS app with Firebase](https://firebase.google.com/docs/ios/setup).
+  - Register your iOS app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/), and attach
+      your iOS app to it.
+      - You can use "com.google.ios.analytics.testapp" as the iOS Bundle ID
+        while you're testing. You can omit App Store ID while testing.
+    - Add the GoogleService-Info.plist that you downloaded from Firebase
+      console to the sample directory. This file identifies your iOS app
+      to the Firebase backend.
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Add the following frameworks from the Firebase C++ SDK to the project:
+    - frameworks/ios/universal/firebase.framework
+    - frameworks/ios/universal/firebase\_analytics.framework
+    - You will need to either,
+       1. Check "Copy items if needed" when adding the frameworks, or
+       2. Add the framework path in "Framework Search Paths"
+          - e.g. If you downloaded the Firebase C++ SDK to
+            `/Users/me/firebase_cpp_sdk`,
+            then you would add the path
+            `/Users/me/firebase_cpp_sdk/frameworks/ios/universal`.
+          - To add the path, in XCode, select your project in the project
+            navigator, then select your target in the main window.
+            Select the "Build Settings" tab, and click "All" to see all
+            the build settings. Scroll down to "Search Paths", and add
+            your path to "Framework Search Paths".
+  - In XCode, build & run the sample on an iOS device or simulator.
+  - The sample has no user interface. The output of the app can be viewed
+    via the console.  In Xcode,  select
+    "View --> Debug Area --> Activate Console" from the menu.
+  - After 5 hours, data should be visible in the Firebase Console under the
+    "Analytics" tab accessible from
+    [https://firebase.google.com/console/](https://firebase.google.com/console/).
+
+### Android
+  - Register your Android app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/), and attach
+      your Android app to it.
+      - You can use "com.google.android.analytics.testapp" as the Package Name
+        while you're testing.
+      - To [generate a SHA1](https://developers.google.com/android/guides/client-auth)
+        run this command on Mac and Linux,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore
+        ```
+        or this command on Windows,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore
+        ```
+      - If keytool reports that you do not have a debug.keystore, you can
+        [create one with](http://developer.android.com/tools/publishing/app-signing.html#signing-manually),
+        ```
+        keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"
+        ```
+    - Add the `google-services.json` file that you downloaded from Firebase
+      console to the sample directory. This file identifies your
+      Android app to the Firebase backend.
+    - For further details please refer to the
+      [general instructions for setting up an Android app with Firebase](https://firebase.google.com/docs/android/setup).
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the location of the Firebase C++ SDK by setting the
+    firebase\_cpp\_sdk.dir Gradle property to the SDK install directory.
+    For example, in the project directory:
+      ```
+      echo "systemProp.firebase\_cpp\_sdk.dir=/User/$USER/firebase\_cpp\_sdk" >> gradle.properties
+      ```
+  - Ensure the Android SDK and NDK locations are set in Android Studio.
+    - From the Android Studio launch menu, go to `File/Project Structure...` or
+      `Configure/Project Defaults/Project Structure...`
+      (Shortcut: Control + Alt + Shift + S on windows,  Command + ";" on a mac)
+      and download the SDK and NDK if the locations are not yet set.
+  - Open *build.gradle* in Android Studio.
+    - From the Android Studio launch menu, "Open an existing Android Studio
+      project", and select `build.gradle`.
+  - Install the SDK Platforms that Android Studio reports missing.
+  - Build the sample and run it on an Android device or emulator.
+  - The sample has no user interface. The output of the app can be viewed
+    in the logcat output of Android studio or by running "adb logcat" from
+    the command line.
+  - After 5 hours, data should be visible in the Firebase Console under the
+    "Analytics" tab accessible from
+    [https://firebase.google.com/console/](https://firebase.google.com/console/).
+
+### Desktop
+  - Register your app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/),
+      following the above instructions for Android or iOS.
+    - If you have an Android project, add the `google-services.json` file that
+      you downloaded from the Firebase console to the sample directory.
+    - If you have an iOS project, and don't wish to use an Android project,
+      you can use the Python script `generate_xml_from_google_services_json.py --plist`,
+      located in the Firebase C++ SDK, to convert your `GoogleService-Info.plist`
+      file into a `google-services-desktop.json` file, which can then be
+      placed in the root directory of the sample.
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the sample with the location of the Firebase C++ SDK.
+    This can be done a couple different ways (in highest to lowest priority):
+    - When invoking cmake, pass in the location with
+      -DFIREBASE_CPP_SDK_DIR=/path/to/firebase_cpp_sdk.
+    - Set an environment variable for FIREBASE_CPP_SDK_DIR to the path to use.
+    - Edit the CMakeLists.txt file, changing the FIREBASE_CPP_SDK_DIR path
+      to the appropriate location.
+  - From the sample directory, generate the build files by running,
+      ```
+      cmake .
+      ```
+    If you want to use XCode, you can use -G"Xcode" to generate the project.
+    Similarly, to use Visual Studio, -G"Visual Studio 15 2017". For more
+    information, see
+    [CMake generators](https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html).
+  - Build the sample, by either opening the generated project file based on
+    the platform, or running,
+      ```
+      cmake --build .
+      ```
+  - Execute the sample by running,
+      ```
+      ./sample
+      ```
+    Note that the executable might be under another directory, such as Debug.
+  - The sample has no user interface, but the output can be viewed via the
+    console. Note that Analytics uses a stubbed implementation on desktop,
+    so functionality is not expected.
+
+Support
+-------
+
+[https://firebase.google.com/support/](https://firebase.google.com/support/)
+
+License
+-------
+
+Copyright 2016 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/analytics/integration_test/res/layout/main.xml b/analytics/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/analytics/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/analytics/integration_test/res/values/strings.xml b/analytics/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..3375587120
--- /dev/null
+++ b/analytics/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Analytics Integration Test</string>
+</resources>
diff --git a/analytics/integration_test/settings.gradle b/analytics/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/analytics/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/analytics/integration_test/src/integration_test.cc b/analytics/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..f629bdee07
--- /dev/null
+++ b/analytics/integration_test/src/integration_test.cc
@@ -0,0 +1,155 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/analytics.h"
+#include "firebase/analytics/event_names.h"
+#include "firebase/analytics/parameter_names.h"
+#include "firebase/analytics/user_property_names.h"
+#include "firebase/app.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseAnalyticsTest : public FirebaseTest {
+ public:
+  static void SetUpTestSuite();
+  static void TearDownTestSuite();
+
+  static firebase::App* shared_app_;
+};
+
+firebase::App* FirebaseAnalyticsTest::shared_app_;
+
+void FirebaseAnalyticsTest::SetUpTestSuite() {
+#if defined(__ANDROID__)
+  shared_app_ = firebase::App::Create(app_framework::GetJniEnv(),
+                                      app_framework::GetActivity());
+#else
+  shared_app_ = firebase::App::Create();
+#endif  // defined(__ANDROID__)
+
+  firebase::analytics::Initialize(*shared_app_);
+}
+
+void FirebaseAnalyticsTest::TearDownTestSuite() {
+  firebase::analytics::Terminate();
+  delete shared_app_;
+  shared_app_ = nullptr;
+}
+
+TEST_F(FirebaseAnalyticsTest, TestSetCollectionEnabled) {
+  // Can't confirm that these do anything but just run them all to ensure the
+  // app doesn't crash.
+  firebase::analytics::SetAnalyticsCollectionEnabled(true);
+  firebase::analytics::SetAnalyticsCollectionEnabled(false);
+  firebase::analytics::SetAnalyticsCollectionEnabled(true);
+}
+
+TEST_F(FirebaseAnalyticsTest, TestSetSessionTimeoutDuraction) {
+  firebase::analytics::SetSessionTimeoutDuration(1000 * 60 * 5);
+  firebase::analytics::SetSessionTimeoutDuration(1000 * 60 * 15);
+  firebase::analytics::SetSessionTimeoutDuration(1000 * 60 * 30);
+}
+
+TEST_F(FirebaseAnalyticsTest, TestGetAnalyticsInstanceID) {
+  firebase::Future<std::string> future =
+      firebase::analytics::GetAnalyticsInstanceId();
+  WaitForCompletion(future, "GetAnalyticsInstanceId");
+  EXPECT_FALSE(future.result()->empty());
+}
+
+TEST_F(FirebaseAnalyticsTest, TestSetProperties) {
+  // Set the user's sign up method.
+  firebase::analytics::SetUserProperty(
+      firebase::analytics::kUserPropertySignUpMethod, "Google");
+  // Set the user ID.
+  firebase::analytics::SetUserId("my_integration_test_user");
+
+  firebase::analytics::SetCurrentScreen(
+      "Firebase Analytics C++ integration test", "integration_test");
+}
+
+TEST_F(FirebaseAnalyticsTest, TestLogEvents) {
+  // Log an event with no parameters.
+  firebase::analytics::LogEvent(firebase::analytics::kEventLogin);
+
+  // Log an event with a floating point parameter.
+  firebase::analytics::LogEvent("progress", "percent", 0.4f);
+
+  // Log an event with an integer parameter.
+  firebase::analytics::LogEvent(firebase::analytics::kEventPostScore,
+                                firebase::analytics::kParameterScore, 42);
+
+  // Log an event with a string parameter.
+  firebase::analytics::LogEvent(firebase::analytics::kEventJoinGroup,
+                                firebase::analytics::kParameterGroupID,
+                                "spoon_welders");
+}
+
+TEST_F(FirebaseAnalyticsTest, TestLogEventWithMultipleParameters) {
+  const firebase::analytics::Parameter kLevelUpParameters[] = {
+      firebase::analytics::Parameter(firebase::analytics::kParameterLevel, 5),
+      firebase::analytics::Parameter(firebase::analytics::kParameterCharacter,
+                                     "mrspoon"),
+      firebase::analytics::Parameter("hit_accuracy", 3.14f),
+  };
+  firebase::analytics::LogEvent(
+      firebase::analytics::kEventLevelUp, kLevelUpParameters,
+      sizeof(kLevelUpParameters) / sizeof(kLevelUpParameters[0]));
+}
+
+#if !(TARGET_OS_IPHONE)
+// Test is flakey on iPhone due to a known issue in iOS.  See b/143656277.
+TEST_F(FirebaseAnalyticsTest, TestResettingGivesNewInstanceId) {
+  firebase::Future<std::string> future =
+      firebase::analytics::GetAnalyticsInstanceId();
+  WaitForCompletion(future, "GetAnalyticsInstanceId");
+  EXPECT_FALSE(future.result()->empty());
+  std::string instance_id = *future.result();
+
+  firebase::analytics::ResetAnalyticsData();
+
+  future = firebase::analytics::GetAnalyticsInstanceId();
+  WaitForCompletion(future, "GetAnalyticsInstanceId after ResetAnalyticsData");
+  std::string new_instance_id = *future.result();
+  EXPECT_FALSE(future.result()->empty());
+  EXPECT_NE(instance_id, new_instance_id);
+}
+#endif  // !(TARGET_OS_IPHONE)
+
+}  // namespace firebase_testapp_automated
diff --git a/app/integration_test/AndroidManifest.xml b/app/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..ffd3c1f9d0
--- /dev/null
+++ b/app/integration_test/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.analytics.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
diff --git a/app/integration_test/CMakeLists.txt b/app/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..f27111df56
--- /dev/null
+++ b/app/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/app/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/app/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/app/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/app/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/app/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/app/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/app/integration_test/Info.plist b/app/integration_test/Info.plist
new file mode 100644
index 0000000000..d938a81f9b
--- /dev/null
+++ b/app/integration_test/Info.plist
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.ios.analytics.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/app/integration_test/LaunchScreen.storyboard b/app/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/app/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/app/integration_test/LibraryManifest.xml b/app/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..855b13b5dc
--- /dev/null
+++ b/app/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.analytics.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/app/integration_test/Podfile b/app/integration_test/Podfile
new file mode 100644
index 0000000000..2f9fa57fa2
--- /dev/null
+++ b/app/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase App test application.
+
+target 'integration_test' do
+  pod 'Firebase/Analytics', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/app/integration_test/build.gradle b/app/integration_test/build.gradle
new file mode 100644
index 0000000000..95ab16fd6c
--- /dev/null
+++ b/app/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.analytics.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  app
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/app/integration_test/googletest.cmake b/app/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/app/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/app/integration_test/gradle/wrapper/gradle-wrapper.jar b/app/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/app/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/app/integration_test/gradle/wrapper/gradle-wrapper.properties b/app/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/app/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/app/integration_test/gradlew b/app/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/app/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/app/integration_test/gradlew.bat b/app/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/app/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/app/integration_test/integration_test.xcodeproj/project.pbxproj b/app/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/app/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/app/integration_test/proguard.pro b/app/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/app/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/app/integration_test/res/layout/main.xml b/app/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/app/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/app/integration_test/res/values/strings.xml b/app/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..15ff2a0621
--- /dev/null
+++ b/app/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase App Integration Test</string>
+</resources>
diff --git a/app/integration_test/settings.gradle b/app/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/app/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/app/integration_test/src/integration_test.cc b/app/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..c22acb8bec
--- /dev/null
+++ b/app/integration_test/src/integration_test.cc
@@ -0,0 +1,68 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"            // NOLINT
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseAppTest : public FirebaseTest {
+ public:
+  FirebaseAppTest();
+};
+
+FirebaseAppTest::FirebaseAppTest() {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+// For simplicity of test code, handle the Android-specific arguments here.
+#if defined(__ANDROID__)
+#define APP_CREATE_PARAMS \
+  app_framework::GetJniEnv(), app_framework::GetActivity()
+#else
+#define APP_CREATE_PARAMS
+#endif  // defined(__ANDROID__)
+
+TEST_F(FirebaseAppTest, TestDefaultAppWithDefaultOptions) {
+  firebase::App* default_app;
+  default_app = firebase::App::Create(APP_CREATE_PARAMS);
+  EXPECT_NE(default_app, nullptr);
+
+  delete default_app;
+  default_app = nullptr;
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/auth/integration_test/AndroidManifest.xml b/auth/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..c1c8a0c0ce
--- /dev/null
+++ b/auth/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.auth.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/auth/integration_test/CMakeLists.txt b/auth/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..12c9db3699
--- /dev/null
+++ b/auth/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_auth firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/auth/integration_test/Firebase_Cpp_Auth_Test_App_Dev.mobileprovision b/auth/integration_test/Firebase_Cpp_Auth_Test_App_Dev.mobileprovision
new file mode 100644
index 0000000000..979b0856e6
Binary files /dev/null and b/auth/integration_test/Firebase_Cpp_Auth_Test_App_Dev.mobileprovision differ
diff --git a/auth/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/auth/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/auth/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/auth/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/auth/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/auth/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/auth/integration_test/Info.plist b/auth/integration_test/Info.plist
new file mode 100644
index 0000000000..d4e02ca97a
--- /dev/null
+++ b/auth/integration_test/Info.plist
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>com.google.FirebaseCppAuthTestApp.dev</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.google.FirebaseCppAuthTestApp.dev</string>
+			</array>
+		</dict>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.53101460582-aosfj1hlbc89719t6qfian100u6hehh8</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>fetch</string>
+	</array>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/auth/integration_test/LaunchScreen.storyboard b/auth/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/auth/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/auth/integration_test/LibraryManifest.xml b/auth/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..b6faca73f6
--- /dev/null
+++ b/auth/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.auth.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='16'/>
+    <application />
+</manifest>
diff --git a/auth/integration_test/Podfile b/auth/integration_test/Podfile
new file mode 100644
index 0000000000..42a0f26285
--- /dev/null
+++ b/auth/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Auth test application.
+
+target 'integration_test' do
+  pod 'Firebase/Auth', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/auth/integration_test/build.gradle b/auth/integration_test/build.gradle
new file mode 100644
index 0000000000..abdf5361a8
--- /dev/null
+++ b/auth/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.auth.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  auth
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/auth/integration_test/googletest.cmake b/auth/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/auth/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/auth/integration_test/gradle/wrapper/gradle-wrapper.jar b/auth/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/auth/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/auth/integration_test/gradle/wrapper/gradle-wrapper.properties b/auth/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/auth/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/auth/integration_test/gradlew b/auth/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/auth/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/auth/integration_test/gradlew.bat b/auth/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/auth/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/auth/integration_test/integration_test.entitlements b/auth/integration_test/integration_test.entitlements
new file mode 100644
index 0000000000..9199daef18
--- /dev/null
+++ b/auth/integration_test/integration_test.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>application-identifier</key>
+	<string>$(AppIdentifierPrefix)$(CFBundleIdentifier)</string>
+	<key>aps-environment</key>
+	<string>development</string>
+</dict>
+</plist>
diff --git a/auth/integration_test/integration_test.xcodeproj/project.pbxproj b/auth/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..a3901f2c6a
--- /dev/null
+++ b/auth/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,376 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
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+				);
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+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_BUNDLE_IDENTIFIER = com.google.FirebaseCppAuthTestApp.dev;
+				PRODUCT_NAME = "$(TARGET_NAME)";
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+			};
+			name = Debug;
+		};
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
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+				CODE_SIGN_STYLE = Automatic;
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+				FRAMEWORK_SEARCH_PATHS = (
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+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
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+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_BUNDLE_IDENTIFIER = com.google.FirebaseCppAuthTestApp.dev;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
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+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
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+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
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+			defaultConfigurationName = Release;
+		};
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+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/auth/integration_test/proguard.pro b/auth/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/auth/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/auth/integration_test/res/layout/main.xml b/auth/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/auth/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/auth/integration_test/res/values/strings.xml b/auth/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..cfd0d03516
--- /dev/null
+++ b/auth/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Auth Integration Test</string>
+</resources>
diff --git a/auth/integration_test/settings.gradle b/auth/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/auth/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/auth/integration_test/src/integration_test.cc b/auth/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..fbfa5c496e
--- /dev/null
+++ b/auth/integration_test/src/integration_test.cc
@@ -0,0 +1,1118 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <string>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/auth.h"
+#include "firebase/auth/credential.h"
+#include "firebase/auth/user.h"
+#include "firebase/util.h"
+#include "firebase/variant.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+// Set kCustomTestEmail and kCustomTestPassword if you want to test email and
+// password login using a custom account you've already set up on your Firebase
+// project.
+static const char kCustomTestEmail[] = "put_custom_test_account_here@gmail.com";
+static const char kCustomTestPassword[] = "";
+
+static const int kWaitIntervalMs = 300;              // NOLINT
+static const int kPhoneAuthCodeSendWaitMs = 600000;  // NOLINT
+static const int kPhoneAuthCompletionWaitMs = 8000;  // NOLINT
+static const int kPhoneAuthTimeoutMs = 0;            // NOLINT
+
+// Set these in Firebase Console for your app.
+static const char kPhoneAuthTestPhoneNumber[] = "+12345556789";  // NOLINT
+static const char kPhoneAuthTestVerificationCode[] = "123456";   // NOLINT
+
+static const char kTestPassword[] = "testEmailPassword123";
+static const char kTestEmailBad[] = "bad.test.email@example.com";
+static const char kTestPasswordBad[] = "badTestPassword";
+static const char kTestIdTokenBad[] = "bad id token for testing";
+static const char kTestAccessTokenBad[] = "bad access token for testing";
+static const char kTestPasswordUpdated[] = "testpasswordupdated";
+static const char kTestIdProviderIdBad[] = "bad provider id for testing";
+static const char kTestServerAuthCodeBad[] = "bad server auth code";  // NOLINT
+
+using app_framework::LogDebug;
+using app_framework::LogError;  // NOLINT
+using app_framework::LogInfo;
+using app_framework::ProcessEvents;
+
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseAuthTest : public FirebaseTest {
+ public:
+  FirebaseAuthTest();
+  ~FirebaseAuthTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App and Firebase Auth.
+  void Initialize();
+  // Shut down Firebase App and Firebase Auth.
+  void Terminate();
+
+  // Sign out of any user we were signed into. This is automatically called
+  // before and after every test.
+  void SignOut();
+
+  // Delete the current user if it's currently signed in.
+  void DeleteUser();
+
+  // Passthrough method to the base class's WaitForCompletion.
+  bool WaitForCompletion(firebase::Future<std::string> future, const char* fn,
+                         int expected_error = firebase::auth::kAuthErrorNone) {
+    return FirebaseTest::WaitForCompletion(future, fn, expected_error);
+  }
+
+  // Passthrough method to the base class's WaitForCompletion.
+  bool WaitForCompletion(firebase::Future<void> future, const char* fn,
+                         int expected_error = firebase::auth::kAuthErrorNone) {
+    return FirebaseTest::WaitForCompletion(future, fn, expected_error);
+  }
+
+  // Custom WaitForCompletion that checks if User matches afterwards.
+  bool WaitForCompletion(firebase::Future<firebase::auth::User*> future,
+                         const char* fn,
+                         int expected_error = firebase::auth::kAuthErrorNone);
+  // Custom WaitForCompletion that checks if User matches afterwards.
+  bool WaitForCompletion(firebase::Future<firebase::auth::SignInResult> future,
+                         const char* fn,
+                         int expected_error = firebase::auth::kAuthErrorNone);
+
+  // Custom WaitForCompletion that checks if User and Provider ID matches
+  // afterwards.
+  bool WaitForCompletion(firebase::Future<firebase::auth::SignInResult> future,
+                         const char* fn, const std::string& provider_id);
+
+  bool initialized_;
+  firebase::auth::Auth* auth_;
+};
+
+FirebaseAuthTest::FirebaseAuthTest() : initialized_(false), auth_(nullptr) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseAuthTest::~FirebaseAuthTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(auth_ == nullptr);
+}
+
+void FirebaseAuthTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+  SignOut();
+}
+
+void FirebaseAuthTest::TearDown() {
+  SignOut();
+  Terminate();
+  FirebaseTest::TearDown();
+}
+
+void FirebaseAuthTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Auth.");
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(app_, &auth_, [](::firebase::App* app, void* target) {
+    LogDebug("Try to initialize Firebase Auth");
+    firebase::InitResult result;
+    firebase::auth::Auth** auth_ptr =
+        reinterpret_cast<firebase::auth::Auth**>(target);
+    *auth_ptr = firebase::auth::Auth::GetAuth(app, &result);
+    return result;
+  });
+
+  FirebaseTest::WaitForCompletion(initializer.InitializeLastResult(),
+                                  "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Auth.");
+
+  initialized_ = true;
+}
+
+void FirebaseAuthTest::Terminate() {
+  if (!initialized_) return;
+
+  if (auth_) {
+    LogDebug("Shutdown the Auth library.");
+    delete auth_;
+    auth_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+bool FirebaseAuthTest::WaitForCompletion(
+    firebase::Future<firebase::auth::User*> future, const char* fn,
+    int expected_error) {
+  bool succeeded = FirebaseTest::WaitForCompletion(future, fn, expected_error);
+
+  if (succeeded) {
+    if (expected_error == ::firebase::auth::kAuthErrorNone) {
+      const firebase::auth::User* future_result_user =
+          future.result() ? *future.result() : nullptr;
+      const firebase::auth::User* auth_user = auth_->current_user();
+      EXPECT_EQ(future_result_user, auth_user)
+          << "User returned by Future doesn't match User in Auth";
+      return (future_result_user == auth_user);
+    }
+  }
+  return succeeded;
+}
+
+bool FirebaseAuthTest::WaitForCompletion(
+    firebase::Future<firebase::auth::SignInResult> future, const char* fn,
+    int expected_error) {
+  bool succeeded = FirebaseTest::WaitForCompletion(future, fn, expected_error);
+
+  if (succeeded) {
+    if (expected_error == ::firebase::auth::kAuthErrorNone) {
+      const firebase::auth::User* future_result_user =
+          (future.result() && future.result()->user) ? future.result()->user
+                                                     : nullptr;
+      const firebase::auth::User* auth_user = auth_->current_user();
+      EXPECT_EQ(future_result_user, auth_user)
+          << "User returned by Future doesn't match User in Auth";
+      return (future_result_user == auth_user);
+    }
+  }
+  return succeeded;
+}
+
+bool FirebaseAuthTest::WaitForCompletion(
+    firebase::Future<firebase::auth::SignInResult> future, const char* fn,
+    const std::string& provider_id) {
+  bool succeeded = FirebaseTest::WaitForCompletion(future, fn);
+  if (succeeded) {
+    const firebase::auth::SignInResult* result_ptr = future.result();
+    EXPECT_NE(result_ptr->user, nullptr);
+    EXPECT_EQ(result_ptr->info.provider_id, provider_id);
+  }
+  return succeeded;
+}
+
+void FirebaseAuthTest::SignOut() {
+  if (auth_ == nullptr) {
+    // Auth is not set up.
+    return;
+  }
+  if (auth_->current_user() == nullptr) {
+    // Already signed out.
+    return;
+  }
+  auth_->SignOut();
+  // Wait for the sign-out to finish.
+  while (auth_->current_user() != nullptr) {
+    if (ProcessEvents(100)) break;
+  }
+  ProcessEvents(100);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+}
+
+void FirebaseAuthTest::DeleteUser() {
+  if (auth_ != nullptr && auth_->current_user() != nullptr) {
+    FirebaseTest::WaitForCompletion(auth_->current_user()->Delete(),
+                                    "Delete User");
+    ProcessEvents(100);
+  }
+}
+
+TEST_F(FirebaseAuthTest, TestInitialization) {
+  // Initialized in SetUp and terminated in TearDown.
+  EXPECT_NE(app_, nullptr);
+  EXPECT_NE(auth_, nullptr);
+}
+
+TEST_F(FirebaseAuthTest, TestAnonymousSignin) {
+  // Test notification on SignIn().
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  EXPECT_TRUE(auth_->current_user()->is_anonymous());
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestCredentialCopy) {
+  // --- Credential copy tests -------------------------------------------------
+  {
+    firebase::auth::Credential email_cred =
+        firebase::auth::EmailAuthProvider::GetCredential(kCustomTestEmail,
+                                                         kTestPassword);
+    firebase::auth::Credential facebook_cred =
+        firebase::auth::FacebookAuthProvider::GetCredential(
+            kTestAccessTokenBad);
+
+    std::string email_provider = email_cred.provider();
+    std::string facebook_provider = facebook_cred.provider();
+
+    // Test copy constructor.
+    firebase::auth::Credential cred_copy(email_cred);
+    EXPECT_EQ(cred_copy.provider(), email_provider);
+    // Test assignment operator.
+    cred_copy = facebook_cred;
+    EXPECT_EQ(cred_copy.provider(), facebook_provider);
+  }
+}
+
+class TestAuthStateListener : public firebase::auth::AuthStateListener {
+ public:
+  virtual void OnAuthStateChanged(firebase::auth::Auth* auth) {  // NOLINT
+    // Log the provider ID.
+    std::string provider =
+        auth->current_user() ? auth->current_user()->provider_id() : "";
+    LogDebug("OnAuthStateChanged called, provider=%s", provider.c_str());
+    if (auth_states_.empty() || auth_states_.back() != provider) {
+      // Only log unique events.
+      auth_states_.push_back(provider);
+    }
+  }
+  const std::vector<std::string>& auth_states() { return auth_states_; }
+
+ private:
+  std::vector<std::string> auth_states_;
+};
+
+class TestIdTokenListener : public firebase::auth::IdTokenListener {
+ public:
+  virtual void OnIdTokenChanged(firebase::auth::Auth* auth) {  // NOLINT
+    // Log the auth token (if available).
+    std::string token = "";
+    if (auth->current_user()) {
+      firebase::Future<std::string> token_future =
+          auth->current_user()->GetToken(false);
+      if (token_future.status() == firebase::kFutureStatusComplete) {
+        if (token_future.error() == 0) {
+          token = *token_future.result();
+        }
+      } else {
+        token = "[in progress]";
+      }
+    }
+    LogDebug("OnIdTokenChanged called, token=%s", token.c_str());
+    if (token_states_.empty() || !token.empty() ||
+        token_states_.back() != token) {
+      // Only log unique empty events.
+      token_states_.push_back(token);
+    }
+  }
+
+  const std::vector<std::string>& token_states() { return token_states_; }
+
+ private:
+  std::vector<std::string> token_states_;
+};
+
+using testing::AnyOf;
+using testing::ElementsAre;
+using testing::Not;
+using testing::StrCaseEq;
+
+TEST_F(FirebaseAuthTest, TestTokensAndAuthStateListeners) {
+  TestAuthStateListener listener;
+  TestIdTokenListener token_listener;
+  auth_->AddAuthStateListener(&listener);
+  auth_->AddIdTokenListener(&token_listener);
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  // Get an initial token.
+  firebase::Future<std::string> token_future =
+      auth_->current_user()->GetToken(false);
+  WaitForCompletion(token_future, "GetToken(false)");
+  std::string first_token = *token_future.result();
+  // Force a token refresh.
+  ProcessEvents(1000);
+  token_future = auth_->current_user()->GetToken(true);
+  WaitForCompletion(token_future, "GetToken(true)");
+  EXPECT_NE(*token_future.result(), "");
+  std::string second_token = *token_future.result();
+  EXPECT_NE(first_token, second_token);
+
+  DeleteUser();
+  SignOut();
+  auth_->RemoveAuthStateListener(&listener);
+  auth_->RemoveIdTokenListener(&token_listener);
+  // Providers should be blank, then Firebase, then blank.
+  EXPECT_THAT(listener.auth_states(),
+              ElementsAre("", StrCaseEq("Firebase"), ""));
+  // We should have blank, then two (or sometimes three) tokens, then blank.
+  EXPECT_THAT(token_listener.token_states(),
+              AnyOf(ElementsAre("", Not(""), Not(""), ""),
+                    ElementsAre("", Not(""), Not(""), Not(""), "")));
+}
+
+static std::string GenerateEmailAddress() {
+  std::string email =
+      "random_user_" +
+      std::to_string(app_framework::GetCurrentTimeInMicroseconds()) +
+      "@gmail.com";
+  LogDebug("Generated email address: %s", email.c_str());
+  return email;
+}
+
+TEST_F(FirebaseAuthTest, TestEmailAndPasswordSignin) {
+  std::string email = GenerateEmailAddress();
+  // Register a random email and password. This signs us in as that user.
+  std::string password = kTestPassword;
+  firebase::Future<firebase::auth::User*> create_user =
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), password.c_str());
+  WaitForCompletion(create_user, "CreateUserWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  // Sign out and log in using SignInWithCredential(EmailCredential).
+  SignOut();
+  {
+    firebase::auth::Credential email_credential =
+        firebase::auth::EmailAuthProvider::GetCredential(email.c_str(),
+                                                         password.c_str());
+    WaitForCompletion(auth_->SignInWithCredential(email_credential),
+                      "SignInWithCredential");
+    EXPECT_NE(auth_->current_user(), nullptr);
+  }
+  // Sign out and log in using
+  // SignInAndRetrieveDataWithCredential(EmailCredential).
+  SignOut();
+  {
+    firebase::auth::Credential email_credential =
+        firebase::auth::EmailAuthProvider::GetCredential(email.c_str(),
+                                                         password.c_str());
+    WaitForCompletion(
+        auth_->SignInAndRetrieveDataWithCredential(email_credential),
+        "SignAndRetrieveDataInWithCredential");
+    EXPECT_NE(auth_->current_user(), nullptr);
+  }
+  SignOut();
+  // Sign in with SignInWithEmailAndPassword values.
+  firebase::Future<firebase::auth::User*> sign_in_user =
+      auth_->SignInWithEmailAndPassword(email.c_str(), password.c_str());
+  WaitForCompletion(sign_in_user, "SignInWithEmailAndPassword");
+  ASSERT_NE(auth_->current_user(), nullptr);
+
+  // Then delete the account.
+  firebase::Future<void> delete_user = auth_->current_user()->Delete();
+  WaitForCompletion(delete_user, "Delete");
+  firebase::Future<firebase::auth::User*> invalid_sign_in_user =
+      auth_->SignInWithEmailAndPassword(email.c_str(), password.c_str());
+  WaitForCompletion(invalid_sign_in_user,
+                    "SignInWithEmailAndPassword (invalid user)",
+                    firebase::auth::kAuthErrorUserNotFound);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseAuthTest, TestUpdateUserProfile) {
+  std::string email = GenerateEmailAddress();
+  firebase::Future<firebase::auth::User*> create_user =
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword);
+  WaitForCompletion(create_user, "CreateUserWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  // Set some user profile properties.
+  firebase::auth::User* user = *create_user.result();
+  const char kDisplayName[] = "Hello World";
+  const char kPhotoUrl[] = "http://example.com/image.jpg";
+  firebase::auth::User::UserProfile user_profile;
+  user_profile.display_name = kDisplayName;
+  user_profile.photo_url = kPhotoUrl;
+  firebase::Future<void> update_profile = user->UpdateUserProfile(user_profile);
+  WaitForCompletion(update_profile, "UpdateUserProfile");
+  EXPECT_EQ(user->display_name(), kDisplayName);
+  EXPECT_EQ(user->photo_url(), kPhotoUrl);
+  SignOut();
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPassword),
+      "SignInWithEmailAndPassword");
+  EXPECT_EQ(user->display_name(), kDisplayName);
+  EXPECT_EQ(user->photo_url(), kPhotoUrl);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestUpdateEmailAndPassword) {
+  std::string email = GenerateEmailAddress();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  firebase::auth::User* user = auth_->current_user();
+
+  // Update the user's email and password.
+  const std::string new_email = "new_" + email;
+  WaitForCompletion(user->UpdateEmail(new_email.c_str()), "UpdateEmail");
+  WaitForCompletion(user->UpdatePassword(kTestPasswordUpdated),
+                    "UpdatePassword");
+
+  firebase::auth::Credential new_email_cred =
+      firebase::auth::EmailAuthProvider::GetCredential(new_email.c_str(),
+                                                       kTestPasswordUpdated);
+  WaitForCompletion(user->Reauthenticate(new_email_cred), "Reauthenticate");
+  EXPECT_NE(auth_->current_user(), nullptr);
+
+  WaitForCompletion(user->SendEmailVerification(), "SendEmailVerification");
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestLinkAnonymousUserWithEmailCredential) {
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  firebase::auth::User* user = auth_->current_user();
+  std::string email = GenerateEmailAddress();
+  firebase::auth::Credential credential =
+      firebase::auth::EmailAuthProvider::GetCredential(email.c_str(),
+                                                       kTestPassword);
+  WaitForCompletion(user->LinkAndRetrieveDataWithCredential(credential),
+                    "LinkAndRetrieveDataWithCredential");
+  WaitForCompletion(user->Unlink(credential.provider().c_str()), "Unlink");
+  SignOut();
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  std::string email1 = GenerateEmailAddress();
+  firebase::auth::Credential credential1 =
+      firebase::auth::EmailAuthProvider::GetCredential(email1.c_str(),
+                                                       kTestPassword);
+  WaitForCompletion(user->LinkWithCredential(credential1),
+                    "LinkWithCredential 1");
+  std::string email2 = GenerateEmailAddress();
+  firebase::auth::Credential credential2 =
+      firebase::auth::EmailAuthProvider::GetCredential(email2.c_str(),
+                                                       kTestPassword);
+  WaitForCompletion(user->LinkWithCredential(credential2),
+                    "LinkWithCredential 2",
+                    firebase::auth::kAuthErrorProviderAlreadyLinked);
+  WaitForCompletion(user->Unlink(credential.provider().c_str()), "Unlink 2");
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestLinkAnonymousUserWithBadCredential) {
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  firebase::auth::User* pre_link_user = auth_->current_user();
+  firebase::auth::Credential twitter_cred =
+      firebase::auth::TwitterAuthProvider::GetCredential(kTestIdTokenBad,
+                                                         kTestAccessTokenBad);
+  WaitForCompletion(pre_link_user->LinkWithCredential(twitter_cred),
+                    "LinkWithCredential",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  // Ensure that user stays the same.
+  EXPECT_EQ(auth_->current_user(), pre_link_user);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSignInWithBadEmailFails) {
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(kTestEmailBad, kTestPassword),
+      "SignInWithEmailAndPassword", firebase::auth::kAuthErrorUserNotFound);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseAuthTest, TestSignInWithBadPasswordFails) {
+  std::string email = GenerateEmailAddress();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  SignOut();
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPasswordBad),
+      "SignInWithEmailAndPassword", firebase::auth::kAuthErrorWrongPassword);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+  SignOut();
+  // Sign back in and delete the user.
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPassword),
+      "SignInWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestCreateUserWithExistingEmailFails) {
+  std::string email = GenerateEmailAddress();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword 1");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  SignOut();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword 2",
+      firebase::auth::kAuthErrorEmailAlreadyInUse);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+  SignOut();
+  // Try again with a different password.
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPasswordBad),
+      "CreateUserWithEmailAndPassword 3",
+      firebase::auth::kAuthErrorEmailAlreadyInUse);
+  EXPECT_EQ(auth_->current_user(), nullptr);
+  SignOut();
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPassword),
+      "SignInWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSignInWithBadCredentials) {
+  // Get an anonymous user first.
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  // Hold on to the existing user, to make sure it is unchanged by bad signins.
+  firebase::auth::User* existing_user = auth_->current_user();
+  // Test signing in with a variety of bad credentials.
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::FacebookAuthProvider::GetCredential(
+                            kTestAccessTokenBad)),
+                    "SignInWithCredential (Facebook)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  // Ensure that failing to sign in with a credential doesn't modify the user.
+  EXPECT_EQ(auth_->current_user(), existing_user);
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::TwitterAuthProvider::GetCredential(
+                            kTestIdTokenBad, kTestAccessTokenBad)),
+                    "SignInWithCredential (Twitter)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::GitHubAuthProvider::GetCredential(
+                            kTestAccessTokenBad)),
+                    "SignInWithCredential (GitHub)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::GoogleAuthProvider::GetCredential(
+                            kTestIdTokenBad, kTestAccessTokenBad)),
+                    "SignInWithCredential (Google 1)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::GoogleAuthProvider::GetCredential(
+                            kTestIdTokenBad, nullptr)),
+                    "SignInWithCredential (Google 2)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+  WaitForCompletion(
+      auth_->SignInWithCredential(firebase::auth::OAuthProvider::GetCredential(
+          kTestIdProviderIdBad, kTestIdTokenBad, kTestAccessTokenBad)),
+      "SignInWithCredential (OAuth)", firebase::auth::kAuthErrorFailure);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+
+#if defined(__ANDROID__)
+  // Test Play Games sign-in on Android only.
+  WaitForCompletion(auth_->SignInWithCredential(
+                        firebase::auth::PlayGamesAuthProvider::GetCredential(
+                            kTestServerAuthCodeBad)),
+                    "SignInWithCredential (Play Games)",
+                    firebase::auth::kAuthErrorInvalidCredential);
+  EXPECT_EQ(auth_->current_user(), existing_user);
+#endif  // defined(__ANDROID__)
+  DeleteUser();
+}
+
+#if TARGET_OS_IPHONE
+TEST_F(FirebaseAuthTest, TestGameCenterSignIn) {
+  // Test Game Center sign-in on iPhone only.
+  if (!firebase::auth::GameCenterAuthProvider::IsPlayerAuthenticated()) {
+    LogInfo("Not signed into Game Center, skipping test.");
+    GTEST_SKIP();
+    return;
+  }
+  LogDebug("Signed in, testing Game Center authentication.");
+  firebase::Future<firebase::auth::Credential> credential_future =
+      firebase::auth::GameCenterAuthProvider::GetCredential();
+  FirebaseTest::WaitForCompletion(credential_future,
+                                  "GameCenterAuthProvider::GetCredential()");
+
+  EXPECT_NE(credential_future.result(), nullptr);
+  if (credential_future.result()) {
+    WaitForCompletion(auth_->SignInWithCredential(*credential_future.result()),
+                      "SignInWithCredential (Game Center)");
+  }
+  DeleteUser();
+}
+#endif  // TARGET_OS_IPHONE
+
+TEST_F(FirebaseAuthTest, TestSendPasswordResetEmail) {
+  // Test Auth::SendPasswordResetEmail().
+  std::string email = GenerateEmailAddress();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  SignOut();
+  // Send to correct email.
+  WaitForCompletion(auth_->SendPasswordResetEmail(email.c_str()),
+                    "SendPasswordResetEmail (good)");
+  // Send to incorrect email.
+  WaitForCompletion(auth_->SendPasswordResetEmail(kTestEmailBad),
+                    "SendPasswordResetEmail (bad)",
+                    firebase::auth::kAuthErrorUserNotFound);
+  // Delete user now that we are done with it.
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPassword),
+      "SignInWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestWithCustomEmailAndPassword) {
+  if (strlen(kCustomTestEmail) == 0 || strlen(kCustomTestPassword) == 0) {
+    LogInfo(
+        "Skipping %s. To enable this test, set "
+        "kCustomTestEmail and kCustomTestPassword in integration_test.cc.",
+        test_info_->name());
+    GTEST_SKIP();
+    return;
+  }
+  firebase::Future<firebase::auth::User*> sign_in_user =
+      auth_->SignInWithEmailAndPassword(kCustomTestEmail, kCustomTestPassword);
+  WaitForCompletion(sign_in_user, "SignInWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseAuthTest, TestAuthPersistenceWithAnonymousSignin) {
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  EXPECT_TRUE(auth_->current_user()->is_anonymous());
+  Terminate();
+  ProcessEvents(2000);
+  Initialize();
+  EXPECT_NE(auth_, nullptr);
+  ASSERT_NE(auth_->current_user(), nullptr);
+  EXPECT_TRUE(auth_->current_user()->is_anonymous());
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestAuthPersistenceWithEmailSignin) {
+  std::string email = GenerateEmailAddress();
+  WaitForCompletion(
+      auth_->CreateUserWithEmailAndPassword(email.c_str(), kTestPassword),
+      "CreateUserWithEmailAndPassword");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  EXPECT_FALSE(auth_->current_user()->is_anonymous());
+  std::string prev_provider_id = auth_->current_user()->provider_id();
+  // Save the old provider ID list so we can make sure it's the same once it's
+  // loaded again.
+  std::vector<std::string> prev_provider_data_ids;
+  for (int i = 0; i < auth_->current_user()->provider_data().size(); i++) {
+    prev_provider_data_ids.push_back(
+        auth_->current_user()->provider_data()[i]->provider_id());
+  }
+  Terminate();
+  ProcessEvents(2000);
+  Initialize();
+  EXPECT_NE(auth_, nullptr);
+  ASSERT_NE(auth_->current_user(), nullptr);
+  EXPECT_FALSE(auth_->current_user()->is_anonymous());
+  // Make sure the provider IDs are the same as they were before.
+  EXPECT_EQ(auth_->current_user()->provider_id(), prev_provider_id);
+  std::vector<std::string> loaded_provider_data_ids;
+  for (int i = 0; i < auth_->current_user()->provider_data().size(); i++) {
+    loaded_provider_data_ids.push_back(
+        auth_->current_user()->provider_data()[i]->provider_id());
+  }
+  EXPECT_EQ(loaded_provider_data_ids, prev_provider_data_ids);
+
+  // Cleanup, ensure we are signed in as the user so we can delete it.
+  WaitForCompletion(
+      auth_->SignInWithEmailAndPassword(email.c_str(), kTestPassword),
+      "SignInWithEmailAndPassword");
+  EXPECT_NE(auth_->current_user(), nullptr);
+  DeleteUser();
+}
+
+class PhoneListener : public firebase::auth::PhoneAuthProvider::Listener {
+ public:
+  PhoneListener()
+      : on_verification_complete_count_(0),
+        on_verification_failed_count_(0),
+        on_code_sent_count_(0),
+        on_code_auto_retrieval_time_out_count_(0) {}
+
+  void OnVerificationCompleted(firebase::auth::Credential credential) override {
+    LogDebug("PhoneListener: successful automatic verification.");
+    on_verification_complete_count_++;
+    credential_ = credential;
+  }
+
+  void OnVerificationFailed(const std::string& error) override {
+    LogError("PhoneListener verification failed with error, %s", error.c_str());
+    on_verification_failed_count_++;
+  }
+
+  void OnCodeSent(const std::string& verification_id,
+                  const firebase::auth::PhoneAuthProvider::ForceResendingToken&
+                      force_resending_token) override {
+    LogDebug("PhoneListener: code sent. verification_id=%s",
+             verification_id.c_str());
+    verification_id_ = verification_id;
+    force_resending_token_ = force_resending_token;
+    on_code_sent_count_++;
+  }
+
+  void OnCodeAutoRetrievalTimeOut(const std::string& verification_id) override {
+    LogDebug("PhoneListener: auto retrieval timeout. verification_id=%s",
+             verification_id.c_str());
+    verification_id_ = verification_id;
+    on_code_auto_retrieval_time_out_count_++;
+  }
+
+  const std::string& verification_id() const { return verification_id_; }
+  const firebase::auth::PhoneAuthProvider::ForceResendingToken&
+  force_resending_token() const {
+    return force_resending_token_;
+  }
+  int on_verification_complete_count() const {
+    return on_verification_complete_count_;
+  }
+  int on_verification_failed_count() const {
+    return on_verification_failed_count_;
+  }
+  int on_code_sent_count() const { return on_code_sent_count_; }
+  int on_code_auto_retrieval_time_out_count() const {
+    return on_code_auto_retrieval_time_out_count_;
+  }
+
+  // Helper functions for workflow.
+  bool waiting_to_send_code() {
+    return on_verification_complete_count() == 0 &&
+           on_verification_failed_count() == 0 && on_code_sent_count() == 0;
+  }
+
+  bool waiting_for_verification_id() {
+    return on_verification_complete_count() == 0 &&
+           on_verification_failed_count() == 0 &&
+           on_code_auto_retrieval_time_out_count() == 0;
+  }
+
+  firebase::auth::Credential credential() { return credential_; }
+
+ private:
+  std::string verification_id_;
+  firebase::auth::PhoneAuthProvider::ForceResendingToken force_resending_token_;
+  firebase::auth::Credential credential_;
+  int on_verification_complete_count_;
+  int on_verification_failed_count_;
+  int on_code_sent_count_;
+  int on_code_auto_retrieval_time_out_count_;
+};
+
+TEST_F(FirebaseAuthTest, TestPhoneAuth) {
+  SKIP_TEST_ON_DESKTOP;
+
+#if TARGET_OS_IPHONE
+  // Note: This test requires interactivity on iOS, as it displays a CAPTCHA.
+  TEST_REQUIRES_USER_INTERACTION;
+#endif  // TARGET_OS_IPHONE
+  {
+    firebase::auth::PhoneAuthProvider& phone_provider =
+        firebase::auth::PhoneAuthProvider::GetInstance(auth_);
+    LogDebug("Creating listener.");
+    PhoneListener listener;
+    LogDebug("Calling VerifyPhoneNumber.");
+    phone_provider.VerifyPhoneNumber(kPhoneAuthTestPhoneNumber,
+                                     kPhoneAuthTimeoutMs, nullptr, &listener);
+    // Wait for OnCodeSent() callback.
+    int wait_ms = 0;
+    LogDebug("Waiting for code send.");
+    while (listener.waiting_to_send_code()) {
+      if (wait_ms > kPhoneAuthCodeSendWaitMs) break;
+      ProcessEvents(kWaitIntervalMs);
+      wait_ms += kWaitIntervalMs;
+    }
+    EXPECT_EQ(listener.on_verification_failed_count(), 0);
+    LogDebug("Waiting for verification ID.");
+    // Wait for the listener to have a verification ID.
+    wait_ms = 0;
+    while (listener.waiting_for_verification_id()) {
+      if (wait_ms > kPhoneAuthCompletionWaitMs) break;
+      ProcessEvents(kWaitIntervalMs);
+      wait_ms += kWaitIntervalMs;
+    }
+    if (listener.on_verification_complete_count() > 0) {
+      LogDebug("Signing in with automatic verification code.");
+      WaitForCompletion(auth_->SignInWithCredential(listener.credential()),
+                        "SignInWithCredential(PhoneCredential) automatic");
+    } else if (listener.on_verification_failed_count() > 0) {
+      FAIL() << "Automatic verification failed.";
+    } else {
+      // Did not automatically verify, submit verification code manually.
+      EXPECT_GT(listener.on_code_auto_retrieval_time_out_count(), 0);
+      EXPECT_NE(listener.verification_id(), "");
+      LogDebug("Signing in with verification code.");
+      const firebase::auth::Credential phone_credential =
+          phone_provider.GetCredential(listener.verification_id().c_str(),
+                                       kPhoneAuthTestVerificationCode);
+
+      WaitForCompletion(auth_->SignInWithCredential(phone_credential),
+                        "SignInWithCredential(PhoneCredential)");
+    }
+  }
+  ProcessEvents(1000);
+  DeleteUser();
+}
+
+#if defined(ENABLE_OAUTH_TESTS)
+// SignInWithProvider
+TEST_F(FirebaseAuthTest, TestSuccessfulSignInFederatedProviderNoScopes) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest,
+       TestSuccessfulSignInFederatedProviderNoScopesNoCustomParameters) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSuccessfulSignInFederatedProvider) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id,
+      /*scopes=*/{"https://www.googleapis.com/auth/fitness.activity.read"},
+      /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSignInFederatedProviderBadProviderIdFails) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      /*provider=*/"MadeUpProvider",
+      /*scopes=*/{"https://www.googleapis.com/auth/fitness.activity.read"},
+      /*custom_parameters=*/{{"req_id", "5321"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "SignInWithProvider",
+                    firebase::auth::kAuthErrorInvalidProviderId);
+}
+
+// ReauthenticateWithProvider
+TEST_F(FirebaseAuthTest, TestSuccessfulReauthenticateWithProvider) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id,
+      /*scopes=*/{"https://www.googleapis.com/auth/fitness.activity.read"},
+      /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  if (WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id)) {
+    WaitForCompletion(
+        sign_in_future.result()->user->ReauthenticateWithProvider(&provider),
+        "ReauthenticateWithProvider", provider_id);
+  }
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSuccessfulReauthenticateWithProviderNoScopes) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  if (WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id)) {
+    WaitForCompletion(
+        sign_in_future.result()->user->ReauthenticateWithProvider(&provider),
+        "ReauthenticateWithProvider", provider_id);
+  }
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest,
+       TestSuccessfulReauthenticateWithProviderNoScopesNoCustomParameters) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  if (WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id)) {
+    WaitForCompletion(
+        sign_in_future.result()->user->ReauthenticateWithProvider(&provider),
+        "ReauthenticateWithProvider", provider_id);
+  }
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestReauthenticateWithProviderBadProviderIdFails) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(provider_id);
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->SignInWithProvider(&provider);
+  if (WaitForCompletion(sign_in_future, "SignInWithProvider", provider_id)) {
+    provider_data.provider_id = "MadeUpProvider";
+    firebase::auth::FederatedOAuthProvider provider(provider_data);
+    firebase::Future<firebase::auth::SignInResult> reauth_future =
+        auth_->current_user()->ReauthenticateWithProvider(&provider);
+    WaitForCompletion(reauth_future, "ReauthenticateWithProvider",
+                      firebase::auth::kAuthErrorInvalidProviderId);
+  }
+  DeleteUser();
+}
+
+// LinkWithProvider
+TEST_F(FirebaseAuthTest, TestSuccessfulLinkFederatedProviderNoScopes) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->current_user()->LinkWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "LinkWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest,
+       TestSuccessfulLinkFederatedProviderNoScopesNoCustomParameters) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id, /*scopes=*/{}, /*custom_parameters=*/{});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->current_user()->LinkWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "LinkWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestSuccessfulLinkFederatedProvider) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  const std::string provider_id =
+      firebase::auth::GoogleAuthProvider::kProviderId;
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      provider_id,
+      /*scopes=*/{"https://www.googleapis.com/auth/fitness.activity.read"},
+      /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->current_user()->LinkWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "LinkWithProvider", provider_id);
+  DeleteUser();
+}
+
+TEST_F(FirebaseAuthTest, TestLinkFederatedProviderBadProviderIdFails) {
+  SKIP_TEST_ON_DESKTOP;
+  TEST_REQUIRES_USER_INTERACTION;
+
+  WaitForCompletion(auth_->SignInAnonymously(), "SignInAnonymously");
+  ASSERT_NE(auth_->current_user(), nullptr);
+  firebase::auth::FederatedOAuthProviderData provider_data(
+      /*provider=*/"MadeUpProvider",
+      /*scopes=*/{"https://www.googleapis.com/auth/fitness.activity.read"},
+      /*custom_parameters=*/{{"req_id", "1234"}});
+  firebase::auth::FederatedOAuthProvider provider(provider_data);
+  firebase::Future<firebase::auth::SignInResult> sign_in_future =
+      auth_->current_user()->LinkWithProvider(&provider);
+  WaitForCompletion(sign_in_future, "LinkWithProvider",
+                    firebase::auth::kAuthErrorInvalidProviderId);
+  DeleteUser();
+}
+
+#endif  // defined(ENABLE_OAUTH_TESTS)
+
+}  // namespace firebase_testapp_automated
diff --git a/database/integration_test/AndroidManifest.xml b/database/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..4a470ed5fd
--- /dev/null
+++ b/database/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.cpp.database.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/database/integration_test/CMakeLists.txt b/database/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..29638cae20
--- /dev/null
+++ b/database/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32 iphlpapi psapi userenv shell32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_database firebase_auth firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/database/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/database/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/database/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/database/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/database/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/database/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/database/integration_test/Info.plist b/database/integration_test/Info.plist
new file mode 100644
index 0000000000..a21836a7b2
--- /dev/null
+++ b/database/integration_test/Info.plist
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.firebase.cpp.database.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/database/integration_test/LaunchScreen.storyboard b/database/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/database/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/database/integration_test/LibraryManifest.xml b/database/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..edd412c1b8
--- /dev/null
+++ b/database/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.cpp.database.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/database/integration_test/Podfile b/database/integration_test/Podfile
new file mode 100644
index 0000000000..1094de283a
--- /dev/null
+++ b/database/integration_test/Podfile
@@ -0,0 +1,16 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Realtime Database test application.
+
+target 'integration_test' do
+  pod 'Firebase/Database', '6.24.0'
+  pod 'Firebase/Auth', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/database/integration_test/build.gradle b/database/integration_test/build.gradle
new file mode 100644
index 0000000000..f7f6059178
--- /dev/null
+++ b/database/integration_test/build.gradle
@@ -0,0 +1,77 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.cpp.database.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  auth
+  database
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/database/integration_test/googletest.cmake b/database/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/database/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/database/integration_test/gradle/wrapper/gradle-wrapper.jar b/database/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/database/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/database/integration_test/gradle/wrapper/gradle-wrapper.properties b/database/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/database/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/database/integration_test/gradlew b/database/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/database/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/database/integration_test/gradlew.bat b/database/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/database/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/database/integration_test/integration_test.xcodeproj/project.pbxproj b/database/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/database/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/database/integration_test/proguard.pro b/database/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/database/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/database/integration_test/readme.md b/database/integration_test/readme.md
new file mode 100644
index 0000000000..6b9efa6fcd
--- /dev/null
+++ b/database/integration_test/readme.md
@@ -0,0 +1,215 @@
+Cloud Storage for Firebase Quickstart
+========================
+
+The Cloud Storage for Firebase Integration Test (integration test) demonstrates
+Cloud Storage operations with the Firebase C++ SDK for Cloud Storage.
+The application has no user interface and simply logs actions it's performing
+to the console.
+
+The integration test uses the GoogleTest testing framework to perform a variety
+of tests on a live Firebase project. Tests include:
+  - Creating a firebase::App in a platform-specific way. The App holds
+    platform-specific context that's used by other Firebase APIs, and is a
+    central point for communication between the Cloud Storage C++ and
+    Firebase Auth C++ libraries.
+  - Getting a pointer to firebase::Auth, and signs in anonymously. This allows the
+    integration test to access a Cloud Storage instance with authentication rules
+    enabled, which is the default setting in Firebase Console.
+  - Gets a StorageReference to a test-specific storage node, uses
+    StorageReference::Child() to create a child with a unique key based on the
+    current time in microseconds to work in, and gets a reference to that child,
+    which the integration test will use for the remainder of its actions.
+  - Uploads some sample files and reads them back to ensure the storage can be
+    read from and written to.
+  - Checks the Metadata of the uploaded and downloaded files to ensure they
+    return the expected values for things like size and date modified.
+  - Disconnects and then reconnects and verifies it still has access to the
+    files uploaded.
+  - Shuts down the Cloud Storage, Firebase Auth, and Firebase App systems,
+    ensuring the systems can be shut down in any order.
+
+Introduction
+------------
+
+- [Read more about Cloud Storage for Firebase](https://firebase.google.com/docs/storage/)
+
+Building and Running the integration test
+-----------------------------------------
+
+### iOS
+  - Link your iOS app to the Firebase libraries.
+    - Get CocoaPods version 1 or later by running,
+        ```
+        sudo gem install cocoapods --pre
+        ```
+    - From the integration_tests/storage directory, install the CocoaPods listed
+      in the Podfile by running,
+        ```
+        pod install
+        ```
+    - Open the generated Xcode workspace (which now has the CocoaPods),
+        ```
+        open integration_test.xcworkspace
+        ```
+    - For further details please refer to the
+      [general instructions for setting up an iOS app with Firebase](https://firebase.google.com/docs/ios/setup).
+  - Register your iOS app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/), and attach
+      your iOS app to it.
+      - You can use "com.google.firebase.cpp.storage.testapp" as the iOS Bundle
+        ID while you're testing. You can omit App Store ID while testing.
+    - Add the GoogleService-Info.plist that you downloaded from Firebase console
+      to the integration_test/storage directory. This file identifies your iOS
+      app to the Firebase backend.
+    - In the Firebase console for your app, select "Auth", then enable
+      "Anonymous". This will allow the integration test to use anonymous sign-in to
+      authenticate with Cloud Storage, which requires a signed-in user by
+      default (an anonymous user will suffice).
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Add the following frameworks from the Firebase C++ SDK to the project:
+    - frameworks/ios/universal/firebase.framework
+    - frameworks/ios/universal/firebase_auth.framework
+    - frameworks/ios/universal/firebase_storage.framework
+    - You will need to either,
+       1. Check "Copy items if needed" when adding the frameworks, or
+       2. Add the framework path in "Framework Search Paths"
+          - e.g. If you downloaded the Firebase C++ SDK to
+            `/Users/me/firebase_cpp_sdk`,
+            then you would add the path
+            `/Users/me/firebase_cpp_sdk/frameworks/ios/universal`.
+          - To add the path, in XCode, select your project in the project
+            navigator, then select your target in the main window.
+            Select the "Build Settings" tab, and click "All" to see all
+            the build settings. Scroll down to "Search Paths", and add
+            your path to "Framework Search Paths".
+  - In XCode, build & run the sample on an iOS device or simulator.
+  - The integration test has no interativity. The output of the app can be
+    viewed via the console or on the device's display.  In Xcode, select "View
+    --> Debug Area --> Activate Console" from the menu to view the console.
+
+### Android
+  - Register your Android app with Firebase.
+    - Create a new app on
+      the [Firebase console](https://firebase.google.com/console/), and attach
+      your Android app to it.
+      - You can use "com.google.firebase.cpp.storage.testapp" as the Package
+        Name while you're testing.
+      - To
+        [generate a SHA1](https://developers.google.com/android/guides/client-auth)
+        run this command on Mac and Linux,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore
+        ```
+        or this command on Windows,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore
+        ```
+      - If keytool reports that you do not have a debug.keystore, you can
+        [create one with](http://developer.android.com/tools/publishing/app-signing.html#signing-manually),
+        ```
+        keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"
+        ```
+    - Add the `google-services.json` file that you downloaded from Firebase
+      console to the integration_test/storage directory. This file identifies
+      your Android app to the Firebase backend.
+    - In the Firebase console for your app, select "Auth", then enable
+      "Anonymous". This will allow the integration test to use anonymous sign-in
+      to authenticate with Cloud Storage, which requires a signed-in user by
+      default (an anonymous user will suffice).
+    - For further details please refer to the
+      [general instructions for setting up an Android app with Firebase](https://firebase.google.com/docs/android/setup).
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the location of the Firebase C++ SDK by setting the
+    firebase\_cpp\_sdk.dir Gradle property to the SDK install directory.
+    For example, in the project directory:
+      ```
+      echo "systemProp.firebase\_cpp\_sdk.dir=/User/$USER/firebase\_cpp\_sdk" >> gradle.properties
+      ```
+  - Ensure the Android SDK and NDK locations are set in Android Studio.
+    - From the Android Studio launch menu, go to `File/Project Structure...` or
+      `Configure/Project Defaults/Project Structure...`
+      (Shortcut: Control + Alt + Shift + S on windows,  Command + ";" on a mac)
+      and download the SDK and NDK if the locations are not yet set.
+  - Open *build.gradle* in Android Studio.
+    - From the Android Studio launch menu, "Open an existing Android Studio
+      project", and select `build.gradle`.
+  - Install the SDK Platforms that Android Studio reports missing.
+  - Build the integration test and run it on an Android device or emulator.
+    - Once you've installed the SDKs in Android Studio, you can build the
+      integration test in Android Studio, or from the command-line by running
+      `./gradlew build`.
+  - The integration test has no interactive interface. The output of the app can
+    be viewed on the device's display, or in the logcat output of Android studio
+    or by running "adb logcat *:W android_main firebase" from the command line.
+
+### Desktop
+  - Register your app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/),
+      following the above instructions for Android or iOS.
+    - If you have an Android project, add the `google-services.json` file that
+      you downloaded from the Firebase console to the integration_test/storage
+      directory.
+    - If you have an iOS project, and don't wish to use an Android project,
+      you can use the Python script `generate_xml_from_google_services_json.py --plist`,
+      located in the Firebase C++ SDK, to convert your `GoogleService-Info.plist`
+      file into a `google-services-desktop.json` file, which can then be
+      placed in the integration_test/storage directory .
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the integration test with the location of the Firebase C++ SDK.
+    This can be done a couple different ways (in highest to lowest priority):
+    - When invoking cmake, pass in the location with
+      -DFIREBASE_CPP_SDK_DIR=/path/to/firebase_cpp_sdk.
+    - Set an environment variable for FIREBASE_CPP_SDK_DIR to the path to use.
+    - Edit the CMakeLists.txt file, changing the FIREBASE_CPP_SDK_DIR path
+      to the appropriate location.
+  - From the integration_test/storage directory, generate the build files by running,
+      ```
+      cmake .
+      ```
+    If you want to use XCode, you can use -G"Xcode" to generate the project.
+    Similarly, to use Visual Studio, -G"Visual Studio 15 2017". For more
+    information, see
+    [CMake generators](https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html).
+  - Build the integration test, by either opening the generated project file
+    based on the platform, or running,
+      ```
+      cmake --build .
+      ```
+  - Execute the integration test by running,
+      ```
+      ./integration_test
+      ```
+    Note that the executable might be under another directory, such as Debug.    
+  - The integration test has no user interface, but the output can be viewed via
+    the console.
+
+Support
+-------
+
+[https://firebase.google.com/support/](https://firebase.google.com/support/)
+
+License
+-------
+
+Copyright 2016 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/database/integration_test/res/layout/main.xml b/database/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/database/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/database/integration_test/res/values/strings.xml b/database/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..e848e9c7ba
--- /dev/null
+++ b/database/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Database Integration Test</string>
+</resources>
diff --git a/database/integration_test/settings.gradle b/database/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/database/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/database/integration_test/src/integration_test.cc b/database/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..4d97c92003
--- /dev/null
+++ b/database/integration_test/src/integration_test.cc
@@ -0,0 +1,1204 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <map>
+#include <string>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/auth.h"
+#include "firebase/database.h"
+#include "firebase/internal/platform.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+using app_framework::LogError;
+using app_framework::LogInfo;
+
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+
+using testing::ElementsAre;
+using testing::Key;
+using testing::Not;
+using testing::Pair;
+using testing::PrintToString;
+using testing::UnorderedElementsAre;
+
+const char kIntegrationTestRootPath[] = "integration_test_data";
+
+// Returns true if the given given timestamp is within 15 minutes of the
+// expected timestamp. The value compared against must be a Variant of type
+// int64 representing milliseconds since the epoch.
+MATCHER_P(TimestampIsNear, expected,
+          std::string("Timestamp ") + (negation ? "isn't " : "is ") + "near " +
+              PrintToString(expected)) {
+  if (!arg.is_int64()) {
+    *result_listener << "Variant must be of type Int64, but was type "
+                     << firebase::Variant::TypeName(arg.type());
+    return false;
+  }
+
+  // As long as our timestamp is within 15 minutes, it's correct enough
+  // for our purposes.
+  const int64_t kAllowedTimeDifferenceMilliseconds = 1000L * 60L * 15L;
+
+  int64_t time_difference = arg.int64_value() - expected;
+
+  return time_difference <= kAllowedTimeDifferenceMilliseconds &&
+         time_difference >= -kAllowedTimeDifferenceMilliseconds;
+}
+
+TEST(TimestampIsNear, Matcher) {
+  int64_t kOneMinuteInMilliseconds = 1L * 60L * 1000L;
+  int64_t kTenMinutesInMilliseconds = 10L * 60L * 1000L;
+  int64_t kTwentyMinutesInMilliseconds = 20L * 60L * 1000L;
+
+  int64_t base_time = 1234567890;
+  firebase::Variant current_time = base_time;
+  EXPECT_THAT(current_time, TimestampIsNear(base_time));
+
+  int64_t one_minute_later = base_time + kOneMinuteInMilliseconds;
+  EXPECT_THAT(current_time, TimestampIsNear(one_minute_later));
+  int64_t one_minutes_earlier = base_time - kOneMinuteInMilliseconds;
+  EXPECT_THAT(current_time, TimestampIsNear(one_minutes_earlier));
+
+  int64_t ten_minutes_later = base_time + kTenMinutesInMilliseconds;
+  EXPECT_THAT(current_time, TimestampIsNear(ten_minutes_later));
+  int64_t ten_minutes_earlier = base_time - kTenMinutesInMilliseconds;
+  EXPECT_THAT(current_time, TimestampIsNear(ten_minutes_earlier));
+
+  int64_t twenty_minutes_later = base_time + kTwentyMinutesInMilliseconds;
+  EXPECT_THAT(current_time, Not(TimestampIsNear(twenty_minutes_later)));
+  int64_t twenty_minutes_earlier = base_time - kTwentyMinutesInMilliseconds;
+  EXPECT_THAT(current_time, Not(TimestampIsNear(twenty_minutes_earlier)));
+
+  // Wrong types.
+  EXPECT_THAT(firebase::Variant::Null(), Not(TimestampIsNear(0)));
+  EXPECT_THAT(firebase::Variant::False(), Not(TimestampIsNear(0)));
+  EXPECT_THAT(firebase::Variant::EmptyString(), Not(TimestampIsNear(0)));
+}
+
+class FirebaseDatabaseTest : public FirebaseTest {
+ public:
+  FirebaseDatabaseTest();
+  ~FirebaseDatabaseTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App, Firebase Auth, and Firebase Database.
+  void Initialize();
+  // Shut down Firebase Database, Firebase Auth, and Firebase App.
+  void Terminate();
+  // Sign in an anonymous user.
+  void SignIn();
+
+  firebase::database::DatabaseReference CreateWorkingPath(
+      bool suppress_cleanup = false);
+
+  static bool first_time_;
+
+  bool initialized_;
+  firebase::auth::Auth* auth_;
+  firebase::database::Database* database_;
+
+  std::vector<firebase::database::DatabaseReference> cleanup_paths_;
+};
+
+bool FirebaseDatabaseTest::first_time_ = true;
+
+FirebaseDatabaseTest::FirebaseDatabaseTest()
+    : initialized_(false), auth_(nullptr), database_(nullptr) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseDatabaseTest::~FirebaseDatabaseTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(auth_ == nullptr);
+  assert(database_ == nullptr);
+}
+
+void FirebaseDatabaseTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseDatabaseTest::TearDown() {
+  // Delete the shared path, if there is one.
+  if (initialized_) {
+    if (!cleanup_paths_.empty() && database_ && app_) {
+      LogDebug("Cleaning up...");
+      std::vector<firebase::Future<void>> cleanups;
+      cleanups.reserve(cleanup_paths_.size());
+      for (int i = 0; i < cleanup_paths_.size(); ++i) {
+        cleanups.push_back(cleanup_paths_[i].RemoveValue());
+      }
+      for (int i = 0; i < cleanups.size(); ++i) {
+        std::string cleanup_name = "Cleanup (" + cleanup_paths_[i].url() + ")";
+        WaitForCompletion(cleanups[i], cleanup_name.c_str());
+      }
+      cleanup_paths_.clear();
+    }
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseDatabaseTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Auth and Firebase Database.");
+
+  // 0th element has a reference to this object, the rest have the initializer
+  // targets.
+  void* initialize_targets[] = {&auth_, &database_};
+
+  const firebase::ModuleInitializer::InitializerFn initializers[] = {
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Auth.");
+        ::firebase::InitResult result;
+        *reinterpret_cast<::firebase::auth::Auth**>(targets[0]) =
+            ::firebase::auth::Auth::GetAuth(app, &result);
+        return result;
+      },
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Database.");
+        ::firebase::InitResult result;
+        firebase::database::Database* database =
+            firebase::database::Database::GetInstance(app, &result);
+        *reinterpret_cast<::firebase::database::Database**>(targets[1]) =
+            database;
+        return result;
+      }};
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(app_, initialize_targets, initializers,
+                         sizeof(initializers) / sizeof(initializers[0]));
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Auth and Firebase Database.");
+
+  // The first time we initialize database, enable persistence on mobile.
+  // We need to do this here because on iOS you can only enable persistence
+  // before ANY FIRDatabase instances are used.
+  if (first_time_) {
+    database_->set_persistence_enabled(true);
+    first_time_ = false;
+  }
+
+  initialized_ = true;
+}
+
+void FirebaseDatabaseTest::Terminate() {
+  if (!initialized_) return;
+
+  if (database_) {
+    LogDebug("Shutdown the Database library.");
+    delete database_;
+    database_ = nullptr;
+  }
+  if (auth_) {
+    LogDebug("Shutdown the Auth library.");
+    delete auth_;
+    auth_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+void FirebaseDatabaseTest::SignIn() {
+  LogDebug("Signing in.");
+  firebase::Future<firebase::auth::User*> sign_in_future =
+      auth_->SignInAnonymously();
+  WaitForCompletion(sign_in_future, "SignInAnonymously");
+  if (sign_in_future.error() != 0) {
+    FAIL() << "Ensure your application has the Anonymous sign-in provider "
+              "enabled in Firebase Console.";
+  }
+  ProcessEvents(100);
+}
+
+firebase::database::DatabaseReference FirebaseDatabaseTest::CreateWorkingPath(
+    bool suppress_cleanup) {
+  auto ref = database_->GetReference(kIntegrationTestRootPath).PushChild();
+  if (!suppress_cleanup) {
+    cleanup_paths_.push_back(ref);
+  }
+  return ref;
+}
+
+// Test cases below.
+
+TEST_F(FirebaseDatabaseTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseDatabaseTest, TestSignIn) {
+  SignIn();
+  EXPECT_NE(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseDatabaseTest, TestCreateWorkingPath) {
+  SignIn();
+  firebase::database::DatabaseReference working_path = CreateWorkingPath();
+  LogInfo("Database URL: %s", working_path.url().c_str());
+  EXPECT_TRUE(working_path.is_valid());
+  EXPECT_FALSE(working_path.url().empty());
+  EXPECT_EQ(working_path.url().find(database_->GetReference().url()), 0)
+      << "Working path URL (" << working_path.url()
+      << ") does not begin with root URL (" << database_->GetReference().url()
+      << ")";
+}
+
+static const char kSimpleString[] = "Some simple string";
+static const int kSimpleInt = 2;
+static const int kSimplePriority = 100;
+static const double kSimpleDouble = 3.4;
+static const bool kSimpleBool = true;
+
+TEST_F(FirebaseDatabaseTest, TestSetAndGetSimpleValues) {
+  const char* test_name = test_info_->name();
+  SignIn();
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+
+  {
+    LogDebug("Setting values.");
+    firebase::Future<void> f1 =
+        ref.Child(test_name).Child("String").SetValue(kSimpleString);
+    firebase::Future<void> f2 =
+        ref.Child(test_name).Child("Int").SetValue(kSimpleInt);
+    firebase::Future<void> f3 =
+        ref.Child(test_name).Child("Double").SetValue(kSimpleDouble);
+    firebase::Future<void> f4 =
+        ref.Child(test_name).Child("Bool").SetValue(kSimpleBool);
+    firebase::Future<void> f5 =
+        ref.Child(test_name)
+            .Child("Timestamp")
+            .SetValue(firebase::database::ServerTimestamp());
+    firebase::Future<void> f6 =
+        ref.Child(test_name)
+            .Child("IntAndPriority")
+            .SetValueAndPriority(kSimpleInt, kSimplePriority);
+    WaitForCompletion(f1, "SetSimpleString");
+    WaitForCompletion(f2, "SetSimpleInt");
+    WaitForCompletion(f3, "SetSimpleDouble");
+    WaitForCompletion(f4, "SetSimpleBool");
+    WaitForCompletion(f5, "SetSimpleTimestamp");
+    WaitForCompletion(f6, "SetSimpleIntAndPriority");
+  }
+
+  // Get the values that we just set, and confirm that they match what we
+  // set them to.
+  {
+    LogDebug("Getting values.");
+    firebase::Future<firebase::database::DataSnapshot> f1 =
+        ref.Child(test_name).Child("String").GetValue();
+    firebase::Future<firebase::database::DataSnapshot> f2 =
+        ref.Child(test_name).Child("Int").GetValue();
+    firebase::Future<firebase::database::DataSnapshot> f3 =
+        ref.Child(test_name).Child("Double").GetValue();
+    firebase::Future<firebase::database::DataSnapshot> f4 =
+        ref.Child(test_name).Child("Bool").GetValue();
+    firebase::Future<firebase::database::DataSnapshot> f5 =
+        ref.Child(test_name).Child("Timestamp").GetValue();
+    firebase::Future<firebase::database::DataSnapshot> f6 =
+        ref.Child(test_name).Child("IntAndPriority").GetValue();
+    WaitForCompletion(f1, "GetSimpleString");
+    WaitForCompletion(f2, "GetSimpleInt");
+    WaitForCompletion(f3, "GetSimpleDouble");
+    WaitForCompletion(f4, "GetSimpleBool");
+    WaitForCompletion(f5, "GetSimpleTimestamp");
+    WaitForCompletion(f6, "GetSimpleIntAndPriority");
+
+    // Get the current time to compare to the Timestamp.
+    int64_t current_time_milliseconds =
+        static_cast<int64_t>(time(nullptr)) * 1000L;
+
+    EXPECT_EQ(f1.result()->value().AsString(), kSimpleString);
+    EXPECT_EQ(f2.result()->value().AsInt64(), kSimpleInt);
+    EXPECT_EQ(f3.result()->value().AsDouble(), kSimpleDouble);
+    EXPECT_EQ(f4.result()->value().AsBool(), kSimpleBool);
+    EXPECT_THAT(f5.result()->value().AsInt64(),
+                TimestampIsNear(current_time_milliseconds));
+    EXPECT_EQ(f6.result()->value().AsInt64(), kSimpleInt);
+    EXPECT_EQ(f6.result()->priority().AsInt64(), kSimplePriority);
+  }
+}
+
+// A ValueListener that expects a specific value to be set.
+class ExpectValueListener : public firebase::database::ValueListener {
+ public:
+  explicit ExpectValueListener(const firebase::Variant& value_to_expect)
+      : value_to_expect_(value_to_expect),
+        value_changed_(false),
+        got_expected_value_(false) {}
+  void OnValueChanged(
+      const firebase::database::DataSnapshot& snapshot) override {
+    value_changed_ = true;
+    if (snapshot.value().AsString() == value_to_expect_.AsString()) {
+      got_expected_value_ = true;
+    } else {
+      LogError("ExpectValueListener did not receive the expected result.");
+    }
+  }
+  void OnCancelled(const firebase::database::Error& error_code,
+                   const char* error_message) override {
+    LogError("ExpectValueListener canceled: %d: %s", error_code, error_message);
+    value_changed_ = true;
+    got_expected_value_ = false;
+  }
+
+  bool WaitForExpectedValue() {
+    const int kWaitForValueSeconds = 10;
+
+    for (int i = 0; i < kWaitForValueSeconds; i++) {
+      ProcessEvents(1000);
+      if (value_changed_) {
+        return got_expected_value_;
+      }
+    }
+    LogError("ExpectValueListener timed out.");
+    return got_expected_value_;
+  }
+
+ private:
+  firebase::Variant value_to_expect_;
+  bool value_changed_;
+  bool got_expected_value_;
+};
+
+TEST_F(FirebaseDatabaseTest, TestReadingFromPersistanceWhileOffline) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+  // database_->set_persistence_enabled(true); // Already set in Initialize().
+
+  firebase::database::DatabaseReference ref = CreateWorkingPath(true);
+  std::string working_url = ref.url();
+
+  // Write a value that we can test for.
+  const char* kPersistenceString = "Persistence Test!";
+  WaitForCompletion(ref.Child(test_name).SetValue(kPersistenceString),
+                    "SetValue (online)");
+
+  // Shut down the realtime database and restart it, to make sure that
+  // persistence persists across database object instances.
+  delete database_;
+  database_ = ::firebase::database::Database::GetInstance(app_);
+
+  // Offline mode.  If persistence works, we should still be able to fetch
+  // our value even though we're offline.
+  database_->GoOffline();
+  ref = database_->GetReferenceFromUrl(working_url.c_str());
+
+  {
+    // Check that we can get the offline value via ValueListener.
+    ExpectValueListener listener(kPersistenceString);
+    ref.Child(test_name).AddValueListener(&listener);
+    ASSERT_TRUE(listener.WaitForExpectedValue());
+    ref.Child(test_name).RemoveValueListener(&listener);
+  }
+
+  // Check that we can get the offline value via GetValue().
+  firebase::Future<firebase::database::DataSnapshot> offline_value =
+      ref.Child(test_name).GetValue();
+  WaitForCompletion(offline_value, "GetValue (offline)");
+  EXPECT_EQ(offline_value.result()->value(), kPersistenceString);
+
+  // Go back online.
+  database_->GoOnline();
+  SignIn();
+
+  // Check the online value via GetValue().
+  firebase::Future<firebase::database::DataSnapshot> online_value =
+      ref.Child(test_name).GetValue();
+  WaitForCompletion(online_value, "GetValue (online)");
+  EXPECT_EQ(online_value.result()->value(), kPersistenceString);
+  // Clean up manually.
+  WaitForCompletion(ref.RemoveValue(), "RemoveValue");
+}
+
+TEST_F(FirebaseDatabaseTest, TestRunTransaction) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+
+  // Test running a transaction. This will call RunTransaction and set
+  // some values, including incrementing the player's score.
+  firebase::Future<firebase::database::DataSnapshot> transaction_future;
+  static const int kInitialScore = 500;
+  // Set an initial score of 500 points.
+  WaitForCompletion(
+      ref.Child(test_name).Child("player_score").SetValue(kInitialScore),
+      "SetInitialScoreValue");
+  // The transaction will set the player's item and class, and increment
+  // their score by 100 points.
+  int score_delta = 100;
+  transaction_future = ref.Child(test_name).RunTransaction(
+      [](firebase::database::MutableData* data, void* score_delta_void) {
+        LogDebug("  Transaction function executing.");
+        data->Child("player_item").set_value("Fire sword");
+        data->Child("player_class").set_value("Warrior");
+        // Increment the current score by 100.
+        int64_t score =
+            data->Child("player_score").value().AsInt64().int64_value();
+        data->Child("player_score")
+            .set_value(score + *reinterpret_cast<int*>(score_delta_void));
+        return firebase::database::kTransactionResultSuccess;
+      },
+      &score_delta);
+  WaitForCompletion(transaction_future, "RunTransaction");
+
+  // If the transaction succeeded, let's read back the values that were
+  // written to confirm they match.
+  if (transaction_future.error() == firebase::database::kErrorNone) {
+    firebase::Future<firebase::database::DataSnapshot> read_future =
+        ref.Child(test_name).GetValue();
+    WaitForCompletion(read_future, "ReadTransactionResults");
+
+    const firebase::database::DataSnapshot& read_result = *read_future.result();
+    EXPECT_EQ(read_result.children_count(), 3);
+    EXPECT_TRUE(read_result.HasChild("player_item"));
+    EXPECT_EQ(read_result.Child("player_item").value(), "Fire sword");
+    EXPECT_TRUE(read_result.HasChild("player_class"));
+    EXPECT_EQ(read_result.Child("player_class").value(), "Warrior");
+    EXPECT_TRUE(read_result.HasChild("player_score"));
+    EXPECT_EQ(read_result.Child("player_score").value().AsInt64(),
+              kInitialScore + score_delta);
+    EXPECT_EQ(read_result.value(), transaction_future.result()->value());
+  }
+}
+
+TEST_F(FirebaseDatabaseTest, TestUpdateChildren) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  WaitForCompletion(
+      ref.Child(test_name).SetValue(std::map<std::string, std::string>{
+          {"hello", "world"}, {"apples", "oranges"}, {"puppies", "kittens"}}),
+      "SetValue");
+  firebase::Future<firebase::database::DataSnapshot> read_future =
+      ref.Child(test_name).GetValue();
+  WaitForCompletion(read_future, "GetValue 1");
+  EXPECT_THAT(read_future.result()->value().map(),
+              testing::UnorderedElementsAre(Pair("hello", "world"),
+                                            Pair("apples", "oranges"),
+                                            Pair("puppies", "kittens")));
+  firebase::Future<void> update_future = ref.Child(test_name).UpdateChildren(
+      {{"hello", "galaxy"},
+       {"pears", "grapes"},
+       {"bunnies", "birbs"},
+       {"timestamp", firebase::database::ServerTimestamp()}});
+  WaitForCompletion(update_future, "UpdateChildren");
+  read_future = ref.Child(test_name).GetValue();
+  WaitForCompletion(read_future, "GetValue 2");
+  int64_t current_time_milliseconds =
+      static_cast<int64_t>(time(nullptr)) * 1000L;
+  EXPECT_THAT(
+      read_future.result()->value().map(),
+      UnorderedElementsAre(
+          Pair("apples", "oranges"), Pair("puppies", "kittens"),
+          Pair("hello", "galaxy"), Pair("pears", "grapes"),
+          Pair("bunnies", "birbs"),
+          Pair("timestamp", TimestampIsNear(current_time_milliseconds))));
+}
+
+TEST_F(FirebaseDatabaseTest, TestQueryFiltering) {
+  const char* test_name = test_info_->name();
+
+  // Set up an initial corpus of data that we can then query filter.
+  // This test exercises the following methods on Query:
+  // OrderByChild, OrderByKey, OrderByPriority, OrderByValue
+  // StartAt, EndAt, EqualTo
+  // LimitToFirst, LimitToLast
+  firebase::Variant initial_data = std::map<std::string, firebase::Variant>{
+      {"apple", 1},
+      {"banana", "two"},
+      {"durian",
+       std::map<std::string, firebase::Variant>{{"subkey", 3},
+                                                {"value", "delicious"}}},
+      {"fig", 3.3},
+      {"cranberry",
+       std::map<std::string, firebase::Variant>{{"subkey", 500}, {"value", 9}}},
+      {"eggplant",
+       std::map<std::string, firebase::Variant>{{"subkey", 100},
+                                                {"value", "purple"}}},
+      {"gooseberry", "honk"}};
+
+  SignIn();
+
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  // On mobile, keep this path synchronized to work around persistence issues.
+#if defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  ref.SetKeepSynchronized(true);
+#endif  // defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  WaitForCompletion(ref.Child(test_name).SetValue(initial_data), "SetValue");
+  WaitForCompletion(ref.Child(test_name).Child("cranberry").SetPriority(100),
+                    "SetPriority 1");
+  WaitForCompletion(ref.Child(test_name).Child("banana").SetPriority(-100),
+                    "SetPriority 2");
+  WaitForCompletion(ref.Child(test_name).Child("eggplant").SetPriority(200),
+                    "SetPriority 3");
+  WaitForCompletion(ref.Child(test_name).Child("gooseberry").SetPriority(300),
+                    "SetPriority 4");
+  {
+    firebase::Future<firebase::database::DataSnapshot> initial_read =
+        ref.Child(test_name).GetValue();
+    WaitForCompletion(initial_read, "GetValue (initial)");
+    EXPECT_EQ(initial_read.result()->value(), initial_data);
+    EXPECT_THAT(
+        initial_read.result()->value().map(),
+        UnorderedElementsAre(Key("apple"), Key("banana"), Key("cranberry"),
+                             Key("durian"), Key("eggplant"), Key("fig"),
+                             Key("gooseberry")));
+  }
+
+  // First, try ordering by key. Use LimitToFirst/Last to make sure we get the
+  // first few or last values (even though std::map will always be sorted by
+  // key).
+  {
+    firebase::Future<firebase::database::DataSnapshot> order_by_key =
+        ref.Child(test_name).OrderByKey().LimitToFirst(3).GetValue();
+    WaitForCompletion(order_by_key, "GetValue (OrderByKey)");
+    EXPECT_THAT(
+        order_by_key.result()->value().map(),
+        UnorderedElementsAre(Key("apple"), Key("banana"), Key("cranberry")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> order_by_child =
+        ref.Child(test_name).OrderByChild("subkey").LimitToLast(3).GetValue();
+    WaitForCompletion(order_by_child, "GetValue (OrderByChild)");
+    EXPECT_THAT(
+        order_by_child.result()->value().map(),
+        UnorderedElementsAre(Key("cranberry"), Key("durian"), Key("eggplant")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> order_by_priority =
+        ref.Child(test_name).OrderByPriority().LimitToLast(3).GetValue();
+    WaitForCompletion(order_by_priority, "GetValue (OrderByPriority)");
+    EXPECT_THAT(order_by_priority.result()->value().map(),
+                UnorderedElementsAre(Key("cranberry"), Key("eggplant"),
+                                     Key("gooseberry")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> order_by_value =
+        ref.Child(test_name).OrderByValue().LimitToFirst(3).GetValue();
+    WaitForCompletion(order_by_value, "GetValue (OrderByValue)");
+    EXPECT_THAT(
+        order_by_value.result()->value().map(),
+        UnorderedElementsAre(Key("apple"), Key("fig"), Key("gooseberry")));
+  }
+
+  // Try StartAt, EndAt, EqualTo.
+  {
+    firebase::Future<firebase::database::DataSnapshot> start_at =
+        ref.Child(test_name).OrderByKey().StartAt("d").GetValue();
+    WaitForCompletion(start_at, "GetValue (StartAt)");
+    EXPECT_THAT(start_at.result()->value().map(),
+                UnorderedElementsAre(Key("durian"), Key("eggplant"), Key("fig"),
+                                     Key("gooseberry")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> end_at =
+        ref.Child(test_name).OrderByKey().EndAt("f").GetValue();
+    WaitForCompletion(end_at, "GetValue (EndAt)");
+    EXPECT_THAT(
+        end_at.result()->value().map(),
+        UnorderedElementsAre(Key("apple"), Key("banana"), Key("cranberry"),
+                             Key("durian"), Key("eggplant")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> start_and_end_at =
+        ref.Child(test_name).OrderByKey().StartAt("c").EndAt("f").GetValue();
+    WaitForCompletion(start_and_end_at, "GetValue (StartAndEndAt)");
+    EXPECT_THAT(
+        start_and_end_at.result()->value().map(),
+        UnorderedElementsAre(Key("cranberry"), Key("durian"), Key("eggplant")));
+  }
+  {
+    firebase::Future<firebase::database::DataSnapshot> equal_to =
+        ref.Child(test_name).OrderByKey().EqualTo("fig").GetValue();
+    WaitForCompletion(equal_to, "GetValue (EqualTo)");
+    EXPECT_THAT(equal_to.result()->value().map(),
+                UnorderedElementsAre(Key("fig")));
+  }
+}
+
+// A simple ValueListener that logs the values it sees.
+class LoggingValueListener : public firebase::database::ValueListener {
+ public:
+  LoggingValueListener() : got_error_(false) {}
+  void OnValueChanged(
+      const firebase::database::DataSnapshot& snapshot) override {
+    LogDebug("  ValueListener.OnValueChanged(%s)",
+             FirebaseTest::VariantToString(snapshot.value()).c_str());
+    last_seen_value_ = snapshot.value();
+    seen_values_.push_back(snapshot.value());
+  }
+  void OnCancelled(const firebase::database::Error& error_code,
+                   const char* error_message) override {
+    LogError("ValueListener got error: %d: %s", error_code, error_message);
+    got_error_ = true;
+  }
+  const firebase::Variant& last_seen_value() { return last_seen_value_; }
+  bool has_seen_value(const firebase::Variant& value) {
+    return std::find(seen_values_.begin(), seen_values_.end(), value) !=
+           seen_values_.end();
+  }
+  size_t num_seen_values() { return seen_values_.size(); }
+
+  bool got_error() { return got_error_; }
+
+ private:
+  firebase::Variant last_seen_value_;
+  std::vector<firebase::Variant> seen_values_;
+  bool got_error_;
+};
+
+TEST_F(FirebaseDatabaseTest, TestValueListener) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  WaitForCompletion(ref.Child(test_name).SetValue(0), "SetValue");
+  LoggingValueListener* listener = new LoggingValueListener();
+
+  // Attach the listener, then set 3 values, which will trigger the
+  // listener.
+  ref.Child(test_name).AddValueListener(listener);
+
+  // The listener's OnChanged callback is triggered once when the listener is
+  // attached and again every time the data, including children, changes.
+  // Wait for here for a moment for the initial values to be received.
+  ProcessEvents(1000);
+
+  WaitForCompletion(ref.Child(test_name).SetValue(1), "SetValue 1");
+  WaitForCompletion(ref.Child(test_name).SetValue(2), "SetValue 2");
+  WaitForCompletion(ref.Child(test_name).SetValue(3), "SetValue 3");
+
+  // Wait a moment for the value listener to be triggered.
+  ProcessEvents(1000);
+
+  ref.Child(test_name).RemoveValueListener(listener);
+  // Ensure that the listener is not triggered once removed.
+  WaitForCompletion(ref.Child(test_name).SetValue(4), "SetValue 4");
+
+  // Wait a moment to ensure the listener is not triggered.
+  ProcessEvents(1000);
+
+  EXPECT_FALSE(listener->got_error());
+  // Ensure that the listener was only triggered 4 times, with the values
+  // 0 (the initial value), 1, 2, and 3. The value 4 should not be present.
+  EXPECT_EQ(listener->num_seen_values(), 4);
+  EXPECT_TRUE(listener->has_seen_value(0));
+  EXPECT_TRUE(listener->has_seen_value(1));
+  EXPECT_TRUE(listener->has_seen_value(2));
+  EXPECT_TRUE(listener->has_seen_value(3));
+  EXPECT_FALSE(listener->has_seen_value(4));
+
+  delete listener;
+}
+
+// An simple ChildListener class that simply logs the events it sees.
+class LoggingChildListener : public firebase::database::ChildListener {
+ public:
+  LoggingChildListener() : got_error_(false) {}
+
+  void OnChildAdded(const firebase::database::DataSnapshot& snapshot,
+                    const char* previous_sibling) override {
+    LogDebug("  ChildListener.OnChildAdded(%s)", snapshot.key());
+    events_.push_back(std::string("added ") + snapshot.key());
+  }
+  void OnChildChanged(const firebase::database::DataSnapshot& snapshot,
+                      const char* previous_sibling) override {
+    LogDebug("  ChildListener.OnChildChanged(%s)", snapshot.key());
+    events_.push_back(std::string("changed ") + snapshot.key());
+  }
+  void OnChildMoved(const firebase::database::DataSnapshot& snapshot,
+                    const char* previous_sibling) override {
+    LogDebug("  ChildListener.OnChildMoved(%s)", snapshot.key());
+    events_.push_back(std::string("moved ") + snapshot.key());
+  }
+  void OnChildRemoved(
+      const firebase::database::DataSnapshot& snapshot) override {
+    LogDebug("  ChildListener.OnChildRemoved(%s)", snapshot.key());
+    events_.push_back(std::string("removed ") + snapshot.key());
+  }
+  void OnCancelled(const firebase::database::Error& error_code,
+                   const char* error_message) override {
+    LogError("ChildListener got error: %d: %s", error_code, error_message);
+    got_error_ = true;
+  }
+
+  const std::vector<std::string>& events() { return events_; }
+
+  // Get the total number of Child events this listener saw.
+  size_t total_events() { return events_.size(); }
+
+  // Get the number of times this event was seen.
+  int num_events(const std::string& event) {
+    int count = 0;
+    for (int i = 0; i < events_.size(); i++) {
+      if (events_[i] == event) {
+        count++;
+      }
+    }
+    return count;
+  }
+  bool got_error() { return got_error_; }
+
+ public:
+  // Vector of strings defining the events we saw, in order.
+  std::vector<std::string> events_;
+  bool got_error_;
+};
+
+TEST_F(FirebaseDatabaseTest, TestChildListener) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+
+  LoggingChildListener* listener = new LoggingChildListener();
+  ref.Child(test_name)
+      .OrderByChild("entity_type")
+      .EqualTo("enemy")
+      .AddChildListener(listener);
+
+  // The listener's OnChanged callback is triggered once when the listener is
+  // attached and again every time the data, including children, changes.
+  // Wait for here for a moment for the initial values to be received.
+  ProcessEvents(1000);
+
+  EXPECT_FALSE(listener->got_error());
+
+  // Perform a series of operations that we will then verify with the
+  // ChildListener's event log.
+  std::map<std::string, std::string> params;
+  params["entity_name"] = "cobra";
+  params["entity_type"] = "enemy";
+  WaitForCompletion(
+      ref.Child(test_name).Child("0").SetValueAndPriority(params, 0),
+      "SetEntity0");  // added 0
+  params["entity_name"] = "warrior";
+  params["entity_type"] = "hero";
+  WaitForCompletion(
+      ref.Child(test_name).Child("1").SetValueAndPriority(params, 10),
+      "SetEntity1");  // no event
+  params["entity_name"] = "wizard";
+  params["entity_type"] = "hero";
+  WaitForCompletion(
+      ref.Child(test_name).Child("2").SetValueAndPriority(params, 20),
+      "SetEntity2");  // no event
+  params["entity_name"] = "rat";
+  params["entity_type"] = "enemy";
+  WaitForCompletion(
+      ref.Child(test_name).Child("3").SetValueAndPriority(params, 30),
+      "SetEntity3");  // added 3
+  params["entity_name"] = "thief";
+  params["entity_type"] = "enemy";
+  WaitForCompletion(
+      ref.Child(test_name).Child("4").SetValueAndPriority(params, 40),
+      "SetEntity4");  // added 4
+  params["entity_name"] = "paladin";
+  params["entity_type"] = "hero";
+  WaitForCompletion(
+      ref.Child(test_name).Child("5").SetValueAndPriority(params, 50),
+      "SetEntity5");  // no event
+  params["entity_name"] = "ghost";
+  params["entity_type"] = "enemy";
+  WaitForCompletion(
+      ref.Child(test_name).Child("6").SetValueAndPriority(params, 60),
+      "SetEntity6");  // added 6
+  params["entity_name"] = "dragon";
+  params["entity_type"] = "enemy";
+  WaitForCompletion(
+      ref.Child(test_name).Child("7").SetValueAndPriority(params, 70),
+      "SetEntity7");  // added 7
+  // Now the thief becomes a hero!
+  WaitForCompletion(
+      ref.Child(test_name).Child("4").Child("entity_type").SetValue("hero"),
+      "SetEntity4Type");
+  // Now the dragon becomes a super-dragon!
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("7")
+                        .Child("entity_name")
+                        .SetValue("super-dragon"),
+                    "SetEntity7Name");  // changed 7
+  // Now the super-dragon becomes an mega-dragon!
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("7")
+                        .Child("entity_name")
+                        .SetValue("mega-dragon"),
+                    "SetEntity7NameAgain");  // changed 7
+  // And now we change a hero entity, which the Query ignores.
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("2")
+                        .Child("entity_name")
+                        .SetValue("super-wizard"),
+                    "SetEntity2Value");  // no event
+  // Now poof, the mega-dragon is gone.
+  WaitForCompletion(ref.Child(test_name).Child("7").RemoveValue(),
+                    "RemoveEntity7");  // removed 7
+
+  // Wait a few seconds for the child listener to be triggered.
+  ProcessEvents(1000);
+  // Unregister the listener, so it stops triggering.
+  ref.Child(test_name)
+      .OrderByChild("entity_type")
+      .EqualTo("enemy")
+      .RemoveChildListener(listener);
+  // Wait a few seconds for the child listener to finish up.
+  ProcessEvents(1000);
+
+  // Make one more change, to ensure the listener has been removed.
+  WaitForCompletion(ref.Child(test_name).Child("6").SetPriority(0),
+                    "SetEntity6Priority");
+  // We are expecting to have the following events:
+  EXPECT_THAT(listener->events(),
+              ElementsAre("added 0", "added 3", "added 4", "added 6", "added 7",
+                          "removed 4", "changed 7", "changed 7", "removed 7"));
+  delete listener;
+}
+
+TEST_F(FirebaseDatabaseTest, TestOnDisconnect) {
+  const char* test_name = test_info_->name();
+
+  SignIn();
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  std::string saved_url = ref.url();
+
+  // Set up some ondisconnect handlers to set several values.
+  WaitForCompletion(
+      ref.Child(test_name).Child("SetValueTo1").OnDisconnect()->SetValue(1),
+      "OnDisconnectSetValue1");
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("SetValue2Priority3")
+                        .OnDisconnect()
+                        ->SetValueAndPriority(2, 3),
+                    "OnDisconnect (SetValue2Priority3)");
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("SetValueButThenCancel")
+                        .OnDisconnect()
+                        ->SetValue("Going to cancel this"),
+                    "OnDisconnect (SetValueToCancel)");
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("SetValueButThenCancel")
+                        .OnDisconnect()
+                        ->Cancel(),
+                    "OnDisconnect (Cancel)");
+  // Set a value that we will then remove on disconnect.
+  WaitForCompletion(
+      ref.Child(test_name).Child("RemoveValue").SetValue("Will be removed"),
+      "SetValue (RemoveValue)");
+  WaitForCompletion(
+      ref.Child(test_name).Child("RemoveValue").OnDisconnect()->RemoveValue(),
+      "OnDisconnect (RemoveValue)");
+  // Set up a map to pass to OnDisconnect()->UpdateChildren().
+  std::map<std::string, int> children;
+  children.insert(std::make_pair("one", 1));
+  children.insert(std::make_pair("two", 2));
+  children.insert(std::make_pair("three", 3));
+  WaitForCompletion(ref.Child(test_name)
+                        .Child("UpdateChildren")
+                        .OnDisconnect()
+                        ->UpdateChildren(children),
+                    "OnDisconnect (UpdateChildren)");
+
+  // Set up a listener to wait for the ondisconnect action to occur.
+  ExpectValueListener* listener = new ExpectValueListener(1);
+  ref.Child(test_name).Child("SetValueTo1").AddValueListener(listener);
+  LogDebug("Disconnecting...");
+  database_->GoOffline();
+
+  listener->WaitForExpectedValue();
+  ref.Child(test_name).Child("SetValueTo1").RemoveValueListener(listener);
+
+  // Let go of the reference we already had.
+  ref = firebase::database::DatabaseReference();
+
+  delete listener;
+  listener = nullptr;
+
+  LogDebug("Reconnecting...");
+  database_->GoOnline();
+
+  /// Check that the DisconnectionHandler actions were performed.
+  /// Get a brand new reference to the location to be sure.
+  ref = database_->GetReferenceFromUrl(saved_url.c_str());
+  firebase::Future<firebase::database::DataSnapshot> future =
+      ref.Child(test_name).GetValue();
+  WaitForCompletion(future, "GetValue (OnDisconnectChanges)");
+  const firebase::database::DataSnapshot& result = *future.result();
+  EXPECT_TRUE(result.HasChild("SetValueTo1"));
+  EXPECT_EQ(result.Child("SetValueTo1").value(), 1);
+  EXPECT_TRUE(result.HasChild("SetValue2Priority3"));
+  EXPECT_EQ(result.Child("SetValue2Priority3").value(), 2);
+  EXPECT_EQ(result.Child("SetValue2Priority3").priority().AsInt64(), 3);
+  EXPECT_FALSE(result.HasChild("RemoveValue"));
+  EXPECT_FALSE(result.HasChild("SetValueButThenCancel"));
+  EXPECT_TRUE(result.HasChild("UpdateChildren"));
+  EXPECT_THAT(
+      result.Child("UpdateChildren").value().map(),
+      UnorderedElementsAre(Pair("one", 1), Pair("two", 2), Pair("three", 3)));
+}
+
+TEST_F(FirebaseDatabaseTest, TestInvalidatingReferencesWhenDeletingDatabase) {
+  SignIn();
+
+  // Create a file so we can get its metadata and check that it's properly
+  // invalidated.
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  cleanup_paths_.erase(std::find(cleanup_paths_.begin(), cleanup_paths_.end(),
+                                 ref));  // We'll remove this path manually.
+  firebase::database::Query query = ref.LimitToFirst(10);
+  firebase::Future<void> set_future =
+      ref.Child("Invalidating").SetValue(kSimpleString);
+  WaitForCompletion(set_future, "SetValue");
+  firebase::Future<firebase::database::DataSnapshot> get_future =
+      ref.Child("Invalidating").GetValue();
+  WaitForCompletion(get_future, "GetValue");
+  firebase::database::DataSnapshot snapshot = *get_future.result();
+  firebase::Future<void> delete_future =
+      ref.Child("Invalidating").RemoveValue();
+  WaitForCompletion(delete_future, "RemoveValue");
+
+  EXPECT_TRUE(ref.is_valid());
+  EXPECT_TRUE(query.is_valid());
+  EXPECT_TRUE(snapshot.is_valid());
+  EXPECT_NE(set_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_NE(get_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_NE(delete_future.status(), firebase::kFutureStatusInvalid);
+
+  delete database_;
+  database_ = nullptr;
+
+  EXPECT_FALSE(ref.is_valid());
+  EXPECT_FALSE(query.is_valid());
+  EXPECT_FALSE(snapshot.is_valid());
+  EXPECT_EQ(set_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_EQ(get_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_EQ(delete_future.status(), firebase::kFutureStatusInvalid);
+}
+
+TEST_F(FirebaseDatabaseTest, TestInvalidatingReferencesWhenDeletingApp) {
+  SignIn();
+
+  // Create a file so we can get its metadata and check that it's properly
+  // invalidated.
+  firebase::database::DatabaseReference ref = CreateWorkingPath(true);
+  firebase::database::Query query = ref.LimitToFirst(10);
+  firebase::Future<void> set_future =
+      ref.Child("Invalidating").SetValue(kSimpleString);
+  WaitForCompletion(set_future, "SetValue");
+  firebase::Future<firebase::database::DataSnapshot> get_future =
+      ref.Child("Invalidating").GetValue();
+  WaitForCompletion(get_future, "GetValue");
+  firebase::database::DataSnapshot snapshot = *get_future.result();
+  firebase::Future<void> delete_future =
+      ref.Child("Invalidating").SetValue(firebase::Variant::Null());
+  WaitForCompletion(delete_future, "DeleteValue");
+
+  EXPECT_TRUE(ref.is_valid());
+  EXPECT_TRUE(query.is_valid());
+  EXPECT_TRUE(snapshot.is_valid());
+  EXPECT_NE(set_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_NE(get_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_NE(delete_future.status(), firebase::kFutureStatusInvalid);
+
+  // Deleting App should invalidate all the objects and Futures, same as
+  // deleting Database.
+  delete app_;
+  app_ = nullptr;
+
+  EXPECT_FALSE(ref.is_valid());
+  EXPECT_FALSE(query.is_valid());
+  EXPECT_FALSE(snapshot.is_valid());
+  EXPECT_EQ(set_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_EQ(get_future.status(), firebase::kFutureStatusInvalid);
+  EXPECT_EQ(delete_future.status(), firebase::kFutureStatusInvalid);
+}
+
+TEST_F(FirebaseDatabaseTest, TestInfoConnected) {
+  SignIn();
+  firebase::database::DatabaseReference ref = CreateWorkingPath();
+  // Force getting a value so that we are connected to the database.
+  WaitForCompletion(ref.GetValue(), "GetValue 1 [ignored]");
+  firebase::database::DatabaseReference info =
+      database_->GetReference(".info").Child("connected");
+  {
+    auto connected = info.GetValue();
+    WaitForCompletion(connected, "GetValue 2");
+    EXPECT_EQ(connected.result()->value(), true);
+  }
+  LogDebug("Disconnecting...");
+  database_->GoOffline();
+  {
+    auto disconnected = info.GetValue();
+    WaitForCompletion(disconnected, "GetValue 3");
+    EXPECT_EQ(disconnected.result()->value(), false);
+  }
+  LogDebug("Reconnecting...");
+  database_->GoOnline();
+  ProcessEvents(1000);
+  // Force getting a value so that we reconnect to the database.
+  WaitForCompletion(ref.GetValue(), "GetValue 4 [ignored]");
+  {
+    auto reconnected = info.GetValue();
+    WaitForCompletion(reconnected, "GetValue 5");
+    EXPECT_EQ(reconnected.result()->value(), true);
+  }
+}
+
+TEST_F(FirebaseDatabaseTest, TestGetReferenceWillNullArgument) {
+  EXPECT_FALSE(database_->GetReference(nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestGetReferenceFromUrlWithNullArgument) {
+  EXPECT_FALSE(database_->GetReferenceFromUrl(nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestDatabaseReferenceChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  EXPECT_FALSE(ref.Child(nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestDataSnapshotChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  firebase::Future<firebase::database::DataSnapshot> future = ref.GetValue();
+  WaitForCompletion(future, "ref.GetValue()");
+  const firebase::database::DataSnapshot* snapshot = future.result();
+  EXPECT_FALSE(snapshot->Child(nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestDataSnapshotHasChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  firebase::Future<firebase::database::DataSnapshot> future = ref.GetValue();
+  WaitForCompletion(future, "ref.GetValue()");
+  const firebase::database::DataSnapshot* snapshot = future.result();
+  EXPECT_FALSE(snapshot->HasChild(nullptr));
+}
+
+TEST_F(FirebaseDatabaseTest, TestMutableDataChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  firebase::Future<firebase::database::DataSnapshot> transaction_future;
+  transaction_future = ref.RunTransaction(
+      [](firebase::database::MutableData* data, void*) {
+        // This is the best way we have to check validity of MutableData as we
+        // don't currently expose an is_valid method.
+        EXPECT_EQ(data->Child(nullptr).value(), firebase::Variant::Null());
+        return firebase::database::kTransactionResultSuccess;
+      },
+      nullptr);
+  WaitForCompletion(transaction_future, "RunTransaction");
+}
+
+TEST_F(FirebaseDatabaseTest, TestMutableDataHasChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  firebase::Future<firebase::database::DataSnapshot> transaction_future;
+  transaction_future = ref.RunTransaction(
+      [](firebase::database::MutableData* data, void*) {
+        EXPECT_FALSE(data->HasChild(nullptr));
+        return firebase::database::kTransactionResultSuccess;
+      },
+      nullptr);
+  WaitForCompletion(transaction_future, "RunTransaction");
+}
+
+TEST_F(FirebaseDatabaseTest, TestQueryOrderByChildWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  EXPECT_FALSE(ref.OrderByChild(nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestQueryStartAtWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  EXPECT_FALSE(
+      ref.StartAt(firebase::Variant("SomeString"), nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestQueryEndAtWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  EXPECT_FALSE(ref.EndAt(firebase::Variant("SomeString"), nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestQueryEqualToWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  EXPECT_FALSE(
+      ref.EqualTo(firebase::Variant("SomeString"), nullptr).is_valid());
+}
+
+TEST_F(FirebaseDatabaseTest, TestValueListenerWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  ref.AddValueListener(nullptr);
+}
+
+TEST_F(FirebaseDatabaseTest, TestChildListenerWithNullArgument) {
+  firebase::database::DatabaseReference ref =
+      database_->GetReference("Nothing/will/be/uploaded/here");
+  ref.AddChildListener(nullptr);
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/dynamic_links/integration_test/AndroidManifest.xml b/dynamic_links/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..40b00fd352
--- /dev/null
+++ b/dynamic_links/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.dynamiclinks.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/dynamic_links/integration_test/CMakeLists.txt b/dynamic_links/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..cb8dd7a869
--- /dev/null
+++ b/dynamic_links/integration_test/CMakeLists.txt
@@ -0,0 +1,225 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+    src/desktop/desktop_firebase_test_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_dynamic_links firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/dynamic_links/integration_test/Firebase_Cpp_Dynamic_Links_Test_App_Dev.mobileprovision b/dynamic_links/integration_test/Firebase_Cpp_Dynamic_Links_Test_App_Dev.mobileprovision
new file mode 100644
index 0000000000..541ff35cfa
Binary files /dev/null and b/dynamic_links/integration_test/Firebase_Cpp_Dynamic_Links_Test_App_Dev.mobileprovision differ
diff --git a/dynamic_links/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/dynamic_links/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/dynamic_links/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/dynamic_links/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/dynamic_links/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/dynamic_links/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/dynamic_links/integration_test/Info.plist b/dynamic_links/integration_test/Info.plist
new file mode 100644
index 0000000000..5d64337d39
--- /dev/null
+++ b/dynamic_links/integration_test/Info.plist
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>en</string>
+    <key>CFBundleExecutable</key>
+    <string>$(EXECUTABLE_NAME)</string>
+    <key>CFBundleIdentifier</key>
+    <string>com.google.FirebaseCppDynamicLinksTestApp.dev</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>$(PRODUCT_NAME)</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleURLSchemes</key>
+    <array>
+      <string>com.google.FirebaseCppDynamicLinksTestApp.dev</string>
+    </array>
+    <key>CFBundleURLTypes</key>
+    <array>
+      <dict>
+        <key>CFBundleTypeRole</key>
+        <string>Editor</string>
+        <key>CFBundleURLName</key>
+        <string>com.google.FirebaseCppDynamicLinksTestApp.dev</string>
+        <key>CFBundleURLSchemes</key>
+        <array>
+          <string>com.google.FirebaseCppDynamicLinksTestApp.dev</string>
+        </array>
+      </dict>
+      <dict>
+        <key>CFBundleTypeRole</key>
+        <string>Editor</string>
+        <key>CFBundleURLName</key>
+        <string>google</string>
+        <key>CFBundleURLSchemes</key>
+        <array>
+          <string>YOUR_REVERSED_CLIENT_ID</string>
+          <string>firebase-game-loop</string>
+        </array>
+      </dict>
+    </array>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSRequiresIPhoneOS</key>
+    <true/>
+    <key>UILaunchStoryboardName</key>
+    <string>LaunchScreen</string>
+    <key>NSContactsUsageDescription</key>
+    <string>Invite others to use the app.</string>
+  </dict>
+</plist>
diff --git a/dynamic_links/integration_test/LaunchScreen.storyboard b/dynamic_links/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/dynamic_links/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/dynamic_links/integration_test/LibraryManifest.xml b/dynamic_links/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..bfbc445ec9
--- /dev/null
+++ b/dynamic_links/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.dynamiclinks.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/dynamic_links/integration_test/Podfile b/dynamic_links/integration_test/Podfile
new file mode 100644
index 0000000000..cf15082836
--- /dev/null
+++ b/dynamic_links/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Dynamic Links test application.
+
+target 'integration_test' do
+  pod 'Firebase/DynamicLinks', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/dynamic_links/integration_test/build.gradle b/dynamic_links/integration_test/build.gradle
new file mode 100644
index 0000000000..f4f6e04b5c
--- /dev/null
+++ b/dynamic_links/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.dynamiclinks.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  dynamicLinks
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/dynamic_links/integration_test/googletest.cmake b/dynamic_links/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/dynamic_links/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.jar b/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.properties b/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/dynamic_links/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/dynamic_links/integration_test/gradlew b/dynamic_links/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/dynamic_links/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/dynamic_links/integration_test/gradlew.bat b/dynamic_links/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/dynamic_links/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/dynamic_links/integration_test/integration_test.entitlements b/dynamic_links/integration_test/integration_test.entitlements
new file mode 100644
index 0000000000..3ccfd33539
--- /dev/null
+++ b/dynamic_links/integration_test/integration_test.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>application-identifier</key>
+  <string>$(AppIdentifierPrefix)$(CFBundleIdentifier)</string>
+  <key>com.apple.developer.associated-domains</key>
+  <array>
+    <string>applinks:zx93d.app.goo.gl</string>
+  </array>
+</dict>
+</plist>
diff --git a/dynamic_links/integration_test/integration_test.xcodeproj/project.pbxproj b/dynamic_links/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/dynamic_links/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/dynamic_links/integration_test/proguard.pro b/dynamic_links/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/dynamic_links/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/dynamic_links/integration_test/res/layout/main.xml b/dynamic_links/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/dynamic_links/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/dynamic_links/integration_test/res/values/strings.xml b/dynamic_links/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..f8cbe3cc1f
--- /dev/null
+++ b/dynamic_links/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Dynamic Links Integration Test</string>
+</resources>
diff --git a/dynamic_links/integration_test/settings.gradle b/dynamic_links/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/dynamic_links/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/dynamic_links/integration_test/src/integration_test.cc b/dynamic_links/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..efc13c227a
--- /dev/null
+++ b/dynamic_links/integration_test/src/integration_test.cc
@@ -0,0 +1,698 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/dynamic_links.h"
+#include "firebase/dynamic_links/components.h"
+#include "firebase/internal/platform.h"
+#include "firebase/log.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+using app_framework::LogInfo;
+
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+
+// Bundle IDs needed for opening Dynamic Links.
+static const char kIOSBundleID[] =
+    "com.google.FirebaseCppDynamicLinksTestApp.dev";
+static const char kAndroidBundleID[] =
+    "com.google.android.dynamiclinks.testapp";
+static const char kIOSAppStoreID[] = "2233445566";  // Placeholder ID.
+
+static const char kDomainUriPrefixInvalidError[] =
+    "kDomainUriPrefix is not valid, link shortening will fail.\n"
+    "To resolve this:\n"
+    "* Goto the Firebase console https://firebase.google.com/console/\n"
+    "* Click on the Dynamic Links tab\n"
+    "* Copy the URI prefix e.g https://a12cd.app.goo.gl or "
+    "  https://your-project.page.link\n"
+    "* Replace the value of kDomainUriPrefix with the copied URI prefix.\n";
+
+// IMPORTANT: You need to set this to a valid URI prefix from the Firebase
+// console (see kDomainUriPrefixInvalidError for the details).
+static const char* kDomainUriPrefix = "https://REPLACE_WITH_YOUR_URI_PREFIX";
+
+#define TARGET_URL_PREFIX "https://mysite.example.com"
+
+// When one of the tests tries to open a URL, it suppresses the other tests
+// that are attempting to do the same, since only one URL can be opened at a
+// time. It does so by setting the "current test" flag to its own test name.
+static const char kCurrentTestKey[] = "openurl_current_test";
+
+class TestListener;
+
+class FirebaseDynamicLinksTest : public FirebaseTest {
+ public:
+  static void SetUpTestSuite();
+  static void TearDownTestSuite();
+
+ protected:
+  // Try to claim the "current test" flag, returning true if successful and
+  // false if not.  Because tests run in sequence, this does not actually
+  // require any mutexes. This returns true if it was already claimed by this
+  // test, or if no test was claiming it before (in which case, now this test
+  // is).
+  bool ClaimCurrentTest(const char* test_name);
+  // Release the "current test" flag, allowing the next test to run.
+  void ReleaseCurrentTest();
+
+  static firebase::App* shared_app_;
+  static TestListener* shared_listener_;
+  static bool is_desktop_stub_;
+  // A list of persistent keys we've saved on the device, to be erased on
+  // shutdown after all tests are finished.
+  static std::vector<std::string> cleanup_persistent_keys_;
+};
+
+firebase::App* FirebaseDynamicLinksTest::shared_app_ = nullptr;
+TestListener* FirebaseDynamicLinksTest::shared_listener_ = nullptr;
+bool FirebaseDynamicLinksTest::is_desktop_stub_ = false;
+// NOLINTNEXTLINE
+std::vector<std::string> FirebaseDynamicLinksTest::cleanup_persistent_keys_;
+
+// Handles a received dynamic link.
+class TestListener : public firebase::dynamic_links::Listener {
+ public:
+  TestListener() : received_link_(false) {}
+  void OnDynamicLinkReceived(
+      const firebase::dynamic_links::DynamicLink* dynamic_link) override {
+    LogInfo("Received dynamic link: %s", dynamic_link->url.c_str());
+    link_ = *dynamic_link;
+    received_link_ = true;
+  }
+
+  bool WaitForDynamicLink(firebase::dynamic_links::DynamicLink* link_output) {
+    const int kWaitSeconds = 10;
+    for (int i = 0; i < kWaitSeconds; i++) {
+      ProcessEvents(1000);
+      if (received_link_) {
+        *link_output = link_;
+        return true;
+      }
+    }
+    return false;
+  }
+  bool received_link_;
+  firebase::dynamic_links::DynamicLink link_;
+};
+
+void FirebaseDynamicLinksTest::SetUpTestSuite() {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+
+  firebase::SetLogLevel(firebase::kLogLevelDebug);
+  LogDebug("Initialize Firebase App.");
+
+#if defined(__ANDROID__)
+  shared_app_ = ::firebase::App::Create(app_framework::GetJniEnv(),
+                                        app_framework::GetActivity());
+#else
+  shared_app_ = ::firebase::App::Create();
+#endif  // defined(__ANDROID__)
+
+  LogDebug("Initializing Firebase Dynamic Links.");
+
+  shared_listener_ = new TestListener();
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(
+      shared_app_, shared_listener_,
+      [](::firebase::App* app, void* listener_void) {
+        LogDebug("Try to initialize Firebase Dynamic Links");
+        firebase::InitResult result;
+        result = firebase::dynamic_links::Initialize(
+            *app, reinterpret_cast<firebase::dynamic_links::Listener*>(
+                      listener_void));
+        return result;
+      });
+
+  FirebaseTest::WaitForCompletion(initializer.InitializeLastResult(),
+                                  "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  is_desktop_stub_ = false;
+#if !defined(__ANDROID__) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  is_desktop_stub_ = true;
+#endif  // !defined(__ANDROID__) && !(defined(TARGET_OS_IPHONE) &&
+        // TARGET_OS_IPHONE)
+
+  LogDebug("Successfully initialized Firebase Dynamic Links.");
+}
+
+void FirebaseDynamicLinksTest::TearDownTestSuite() {
+  // On teardown, delete all the persistent keys we should clean up, as long as
+  // there is no longer a current test running.
+  std::string value;
+  if (GetPersistentString(kCurrentTestKey, &value) && !value.empty()) {
+    // Don't clean up the persistent keys yet, not until all the tests are done.
+    return;
+  }
+  LogDebug("Tests finished, cleaning up all persistent keys.");
+  for (int i = 0; i < cleanup_persistent_keys_.size(); ++i) {
+    SetPersistentString(cleanup_persistent_keys_[i].c_str(), nullptr);
+  }
+  cleanup_persistent_keys_.clear();
+
+  LogDebug("Shutdown Firebase Dynamic Links.");
+  firebase::dynamic_links::Terminate();
+
+  delete shared_listener_;
+  shared_listener_ = nullptr;
+
+  LogDebug("Shutdown Firebase App.");
+  delete shared_app_;
+  shared_app_ = nullptr;
+
+  ProcessEvents(100);
+}
+
+// Test cases below.
+
+TEST_F(FirebaseDynamicLinksTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseDynamicLinksTest, CheckForDomainUriPrefix) {
+  ASSERT_EQ(strstr(kDomainUriPrefix, "REPLACE_WITH"), nullptr)
+      << kDomainUriPrefixInvalidError;
+}
+
+TEST_F(FirebaseDynamicLinksTest, TestCreateLongLink) {
+  firebase::dynamic_links::GoogleAnalyticsParameters analytics_parameters;
+  analytics_parameters.source = "mysource";
+  analytics_parameters.medium = "mymedium";
+  analytics_parameters.campaign = "mycampaign";
+  analytics_parameters.term = "myterm";
+  analytics_parameters.content = "mycontent";
+
+  firebase::dynamic_links::IOSParameters ios_parameters("com.myapp.bundleid");
+  ios_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  ios_parameters.custom_scheme = "mycustomscheme";
+  ios_parameters.minimum_version = "1.2.3";
+  ios_parameters.ipad_bundle_id = "com.myapp.bundleid.ipad";
+  ios_parameters.ipad_fallback_url = TARGET_URL_PREFIX "/fallbackipad";
+
+  firebase::dynamic_links::ITunesConnectAnalyticsParameters
+      app_store_parameters;
+  app_store_parameters.affiliate_token = "abcdefg";
+  app_store_parameters.campaign_token = "hijklmno";
+  app_store_parameters.provider_token = "pq-rstuv";
+
+  firebase::dynamic_links::AndroidParameters android_parameters(
+      "com.myapp.packageid");
+  android_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  android_parameters.minimum_version = 12;
+
+  firebase::dynamic_links::SocialMetaTagParameters social_parameters;
+  social_parameters.title = "My App!";
+  social_parameters.description = "My app is awesome!";
+  social_parameters.image_url = TARGET_URL_PREFIX "/someimage.jpg";
+
+  firebase::dynamic_links::DynamicLinkComponents components(
+      "https://google.com/abc", kDomainUriPrefix);
+  components.google_analytics_parameters = &analytics_parameters;
+  components.ios_parameters = &ios_parameters;
+  components.itunes_connect_analytics_parameters = &app_store_parameters;
+  components.android_parameters = &android_parameters;
+  components.social_meta_tag_parameters = &social_parameters;
+
+  firebase::dynamic_links::GeneratedDynamicLink generated_link =
+      firebase::dynamic_links::GetLongLink(components);
+
+  if (is_desktop_stub_) {
+    // On desktop, it's enough that we just don't crash.
+    SUCCEED();
+    return;
+  }
+
+  EXPECT_TRUE(generated_link.error.empty());
+  EXPECT_NE(generated_link.url, "");
+  EXPECT_EQ(generated_link.url.find(kDomainUriPrefix), 0)
+      << "Dynamic Link URL (" << generated_link.url
+      << ") does not begin with Domain URI Prefix (" << kDomainUriPrefix << ")";
+  if (!generated_link.warnings.empty()) {
+    LogDebug("GetLongLink warnings:");
+    for (auto it = generated_link.warnings.begin();
+         it != generated_link.warnings.end(); ++it) {
+      LogDebug("  %s", it->c_str());
+    }
+  }
+}
+
+TEST_F(FirebaseDynamicLinksTest, TestGetShortLinkFromComponents) {
+  firebase::dynamic_links::GoogleAnalyticsParameters analytics_parameters;
+  analytics_parameters.source = "mysource";
+  analytics_parameters.medium = "mymedium";
+  analytics_parameters.campaign = "mycampaign";
+  analytics_parameters.term = "myterm";
+  analytics_parameters.content = "mycontent";
+
+  firebase::dynamic_links::IOSParameters ios_parameters("com.myapp.bundleid");
+  ios_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  ios_parameters.custom_scheme = "mycustomscheme";
+  ios_parameters.minimum_version = "1.2.3";
+  ios_parameters.ipad_bundle_id = "com.myapp.bundleid.ipad";
+  ios_parameters.ipad_fallback_url = TARGET_URL_PREFIX "/fallbackipad";
+
+  firebase::dynamic_links::ITunesConnectAnalyticsParameters
+      app_store_parameters;
+  app_store_parameters.affiliate_token = "abcdefg";
+  app_store_parameters.campaign_token = "hijklmno";
+  app_store_parameters.provider_token = "pq-rstuv";
+
+  firebase::dynamic_links::AndroidParameters android_parameters(
+      "com.myapp.packageid");
+  android_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  android_parameters.minimum_version = 12;
+
+  firebase::dynamic_links::SocialMetaTagParameters social_parameters;
+  social_parameters.title = "My App!";
+  social_parameters.description = "My app is awesome!";
+  social_parameters.image_url = TARGET_URL_PREFIX "/someimage.jpg";
+
+  firebase::dynamic_links::DynamicLinkComponents components(
+      "https://google.com/def", kDomainUriPrefix);
+  components.google_analytics_parameters = &analytics_parameters;
+  components.ios_parameters = &ios_parameters;
+  components.itunes_connect_analytics_parameters = &app_store_parameters;
+  components.android_parameters = &android_parameters;
+  components.social_meta_tag_parameters = &social_parameters;
+
+  firebase::Future<firebase::dynamic_links::GeneratedDynamicLink> future =
+      firebase::dynamic_links::GetShortLink(components);
+  WaitForCompletion(future, "GetShortLinkFromComponents");
+
+  if (is_desktop_stub_) {
+    // On desktop, it's enough that we just don't crash.
+    SUCCEED();
+    return;
+  }
+
+  const firebase::dynamic_links::GeneratedDynamicLink& generated_link =
+      *future.result();
+
+  EXPECT_TRUE(generated_link.error.empty());
+  EXPECT_NE(generated_link.url, "");
+  EXPECT_EQ(generated_link.url.find(kDomainUriPrefix), 0)
+      << "Dynamic Link URL (" << generated_link.url
+      << ") does not begin with Domain URI Prefix (" << kDomainUriPrefix << ")";
+  if (!generated_link.warnings.empty()) {
+    LogDebug("GetShortLinkFromComponents warnings:");
+    for (auto it = generated_link.warnings.begin();
+         it != generated_link.warnings.end(); ++it) {
+      LogDebug("  %s", it->c_str());
+    }
+  }
+}
+
+TEST_F(FirebaseDynamicLinksTest, TestGetShortLinkFromLongLink) {
+  firebase::dynamic_links::GoogleAnalyticsParameters analytics_parameters;
+  analytics_parameters.source = "mysource";
+  analytics_parameters.medium = "mymedium";
+  analytics_parameters.campaign = "mycampaign";
+  analytics_parameters.term = "myterm";
+  analytics_parameters.content = "mycontent";
+
+  firebase::dynamic_links::IOSParameters ios_parameters("com.myapp.bundleid");
+  ios_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  ios_parameters.custom_scheme = "mycustomscheme";
+  ios_parameters.minimum_version = "1.2.3";
+  ios_parameters.ipad_bundle_id = "com.myapp.bundleid.ipad";
+  ios_parameters.ipad_fallback_url = TARGET_URL_PREFIX "/fallbackipad";
+
+  firebase::dynamic_links::ITunesConnectAnalyticsParameters
+      app_store_parameters;
+  app_store_parameters.affiliate_token = "abcdefg";
+  app_store_parameters.campaign_token = "hijklmno";
+  app_store_parameters.provider_token = "pq-rstuv";
+
+  firebase::dynamic_links::AndroidParameters android_parameters(
+      "com.myapp.packageid");
+  android_parameters.fallback_url = TARGET_URL_PREFIX "/fallback";
+  android_parameters.minimum_version = 12;
+
+  firebase::dynamic_links::SocialMetaTagParameters social_parameters;
+  social_parameters.title = "My App!";
+  social_parameters.description = "My app is awesome!";
+  social_parameters.image_url = TARGET_URL_PREFIX "/someimage.jpg";
+
+  firebase::dynamic_links::DynamicLinkComponents components(
+      "https://google.com/ghi", kDomainUriPrefix);
+  components.google_analytics_parameters = &analytics_parameters;
+  components.ios_parameters = &ios_parameters;
+  components.itunes_connect_analytics_parameters = &app_store_parameters;
+  components.android_parameters = &android_parameters;
+  components.social_meta_tag_parameters = &social_parameters;
+
+  firebase::dynamic_links::GeneratedDynamicLink long_link =
+      firebase::dynamic_links::GetLongLink(components);
+
+  if (is_desktop_stub_) {
+    // On desktop, it's enough that we just don't crash.
+    SUCCEED();
+    return;
+  }
+
+  EXPECT_NE(long_link.url, "");
+
+  firebase::dynamic_links::DynamicLinkOptions options;
+  options.path_length = firebase::dynamic_links::kPathLengthShort;
+  firebase::Future<firebase::dynamic_links::GeneratedDynamicLink> future =
+      firebase::dynamic_links::GetShortLink(long_link.url.c_str(), options);
+  WaitForCompletion(future, "GetShortLinkFromLongLink");
+
+  const firebase::dynamic_links::GeneratedDynamicLink& generated_link =
+      *future.result();
+
+  EXPECT_TRUE(generated_link.error.empty());
+  EXPECT_NE(generated_link.url, "");
+  EXPECT_EQ(generated_link.url.find(kDomainUriPrefix), 0)
+      << "Dynamic Link URL (" << generated_link.url
+      << ") does not begin with Domain URI Prefix (" << kDomainUriPrefix << ")";
+  if (!generated_link.warnings.empty()) {
+    LogDebug("GetShortLinkFromLongLink warnings:");
+    for (auto it = generated_link.warnings.begin();
+         it != generated_link.warnings.end(); ++it) {
+      LogDebug("  %s", it->c_str());
+    }
+  }
+}
+
+bool FirebaseDynamicLinksTest::ClaimCurrentTest(const char* test_name) {
+  // Tests using OpenUrlInBrowser must be run one at a time per run of the app.
+  // The workflow for these tests is:
+  //
+  // Run #1: Test A opens its link in browser, tests B & C do nothing.
+  // Run #2: Test A verifies that its link loaded, test B opens its link in
+  //         browser, test C does nothing.
+  // Run #3: Test A remembers whether its link had loaded, test B verifies that
+  //         its link loaded, test C opens its link in browser.
+  // Run #4: Tests A & B remember whether their links had loaded, test C
+  //         verifies that its link loaded.
+  //
+  // This is accomplished by setting the value of kCurrentTestKey, which tells
+  // us which of the tests is currently doing its thing. Each test can also set
+  // a state variable saying whether they are opening the link in browser (the
+  // starting state), verifying that the link opened, or previously opened (or
+  // failed to open) the link. Tests that previously failed to open the link
+  // will continue to register a FAIL until all the tests are finished.
+  std::string value;
+  if (!GetPersistentString(kCurrentTestKey, &value) || value == test_name) {
+    // If not already set to it, take ownership of the current test.
+    if (value != test_name) {
+      SetPersistentString(kCurrentTestKey, test_name);
+    }
+    return true;
+  }
+  return false;
+}
+
+void FirebaseDynamicLinksTest::ReleaseCurrentTest() {
+  SetPersistentString(kCurrentTestKey, nullptr);
+}
+
+static firebase::dynamic_links::DynamicLinkComponents GenerateComponentsForTest(
+    const char* url) {
+  static firebase::dynamic_links::AndroidParameters android_parameters(
+      kAndroidBundleID);
+  static firebase::dynamic_links::IOSParameters ios_parameters(kIOSBundleID);
+  ios_parameters.app_store_id = kIOSAppStoreID;
+  static firebase::dynamic_links::SocialMetaTagParameters social_parameters;
+  static firebase::dynamic_links::ITunesConnectAnalyticsParameters
+      app_store_parameters;
+  static firebase::dynamic_links::GoogleAnalyticsParameters
+      analytics_parameters;
+  firebase::dynamic_links::DynamicLinkComponents components(url,
+                                                            kDomainUriPrefix);
+  components.google_analytics_parameters = &analytics_parameters;
+  components.ios_parameters = &ios_parameters;
+  components.itunes_connect_analytics_parameters = &app_store_parameters;
+  components.android_parameters = &android_parameters;
+  components.social_meta_tag_parameters = &social_parameters;
+  return components;
+}
+static const char kStateSentLink[] = "sentLink";
+static const char kStateReceivedLink[] = "receivedLink";
+static const char kStateReceivedLinkFail[] = "receivedLinkFail";
+
+TEST_F(FirebaseDynamicLinksTest, TestOpeningLongLinkInRunningApp) {
+  // On iOS, the dynamic link landing page requires a click.
+  // On Android, the first time a dynamic link is clicked on the device, Google
+  // Play services shows a TOS popup. Either way, this test requires user
+  // interaction.
+#if (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) || defined(__ANDROID__)
+  TEST_REQUIRES_USER_INTERACTION;
+#endif  // (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) ||
+        // defined(__ANDROID__)
+
+  // This test uses a persistent key to keep track of how it's running.
+  const char kUrlToOpen[] = "https://google.com/test_opening_long_link";
+  std::string persistent_key_str = test_info_->name();
+  const char* persistent_key = persistent_key_str.c_str();
+
+  bool owns_current_test = ClaimCurrentTest(persistent_key);
+
+  cleanup_persistent_keys_.push_back(persistent_key);
+  std::string value;
+  if (owns_current_test && !GetPersistentString(persistent_key, &value)) {
+    // The first time, create a dynamic link and open it in the browser.
+    LogDebug("First run, creating and opening long dynamic link...");
+
+    firebase::dynamic_links::DynamicLinkComponents components =
+        GenerateComponentsForTest(kUrlToOpen);
+    firebase::dynamic_links::GeneratedDynamicLink link =
+        firebase::dynamic_links::GetLongLink(components);
+
+    if (is_desktop_stub_) {
+      // On desktop, it's enough that we just don't crash.
+      LogDebug("Succeeded as stub.");
+      SUCCEED();
+      return;
+    }
+    EXPECT_TRUE(link.error.empty());
+    SetPersistentString(persistent_key, kStateSentLink);
+    // This will trigger the test to start over.
+    OpenUrlInBrowser(link.url.c_str());
+    exit(0);  // Kill the app after opening the URL so it can be restarted
+              // properly.
+  } else if (owns_current_test && GetPersistentString(persistent_key, &value) &&
+             value == kStateSentLink) {
+    // The second time, check that we received the dynamic link.
+    LogDebug("Second run, checking for dynamic link...");
+    firebase::dynamic_links::DynamicLink got_link;
+    EXPECT_TRUE(shared_listener_->WaitForDynamicLink(&got_link));
+    EXPECT_EQ(got_link.url, kUrlToOpen);
+    if (got_link.url == kUrlToOpen) {
+      SetPersistentString(persistent_key, kStateReceivedLink);
+    } else {
+      SetPersistentString(persistent_key, kStateReceivedLinkFail);
+    }
+    ReleaseCurrentTest();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLink) {
+    // Already verified the link was correct.
+    LogDebug("Previously verified that dynamic link was received.");
+    SUCCEED();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLinkFail) {
+    // Already verified the link failed.
+    FAIL() << "Previous attempt to get link failed.";
+  } else {
+    LogDebug("Skipping this test because another test has taken ownership.");
+    SUCCEED();
+  }
+}
+
+TEST_F(FirebaseDynamicLinksTest, TestOpeningShortLinkFromLongLinkInRunningApp) {
+  // On iOS, the dynamic link landing page requires a click.
+  // On Android, the first time a dynamic link is clicked on the device, Google
+  // Play services shows a TOS popup. Either way, this test requires user
+  // interaction.
+#if (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) || defined(__ANDROID__)
+  TEST_REQUIRES_USER_INTERACTION;
+#endif  // (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) ||
+        // defined(__ANDROID__)
+
+  // This test uses a persistent key to keep track of how it's running.
+  const char kUrlToOpen[] =
+      "https://google.com/test_opening_short_link_from_long_link";
+  std::string persistent_key_str = test_info_->name();
+  const char* persistent_key = persistent_key_str.c_str();
+
+  bool owns_current_test = ClaimCurrentTest(persistent_key);
+
+  cleanup_persistent_keys_.push_back(persistent_key);
+  std::string value;
+  if (owns_current_test && !GetPersistentString(persistent_key, &value)) {
+    // The first time, create a dynamic link and open it in the browser.
+    LogDebug(
+        "First run, creating and opening short dynamic link from long link...");
+    firebase::dynamic_links::DynamicLinkComponents components =
+        GenerateComponentsForTest(kUrlToOpen);
+    firebase::dynamic_links::GeneratedDynamicLink long_link =
+        firebase::dynamic_links::GetLongLink(components);
+    // Shorten link.
+    firebase::dynamic_links::DynamicLinkOptions options;
+    options.path_length = firebase::dynamic_links::kPathLengthShort;
+    firebase::Future<firebase::dynamic_links::GeneratedDynamicLink> future =
+        firebase::dynamic_links::GetShortLink(long_link.url.c_str(), options);
+
+    if (is_desktop_stub_) {
+      // On desktop, it's enough that we just don't crash.
+      LogDebug("Succeeded as stub.");
+      SUCCEED();
+      return;
+    }
+
+    WaitForCompletion(future, "GetShortLinkFromLongLink");
+    const firebase::dynamic_links::GeneratedDynamicLink& link =
+        *future.result();
+
+    EXPECT_TRUE(link.error.empty());
+    SetPersistentString(persistent_key, kStateSentLink);
+    // This will trigger the test to start over.
+    OpenUrlInBrowser(link.url.c_str());
+    exit(0);  // Kill the app after opening the URL so it can be restarted
+              // properly;
+  } else if (owns_current_test && GetPersistentString(persistent_key, &value) &&
+             value == kStateSentLink) {
+    // The second time, check that we received the dynamic link.
+    LogDebug("Second run, checking for dynamic link...");
+    firebase::dynamic_links::DynamicLink got_link;
+    EXPECT_TRUE(shared_listener_->WaitForDynamicLink(&got_link));
+    EXPECT_EQ(got_link.url, kUrlToOpen);
+    if (got_link.url == kUrlToOpen) {
+      SetPersistentString(persistent_key, kStateReceivedLink);
+    } else {
+      SetPersistentString(persistent_key, kStateReceivedLinkFail);
+    }
+    ReleaseCurrentTest();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLink) {
+    // Already verified the link was correct.
+    LogDebug("Previously verified that dynamic link was received.");
+    SUCCEED();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLinkFail) {
+    // Already verified the link failed.
+    FAIL() << "Previous attempt to get link failed.";
+  } else {
+    LogDebug("Skipping this test because another test has taken ownership.");
+    SUCCEED();
+  }
+}
+
+TEST_F(FirebaseDynamicLinksTest,
+       TestOpeningShortLinkFromComponentsInRunningApp) {
+  // On iOS, the dynamic link landing page requires a click.
+  // On Android, the first time a dynamic link is clicked on the device, Google
+  // Play services shows a TOS popup. Either way, this test requires user
+  // interaction.
+#if (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) || defined(__ANDROID__)
+  TEST_REQUIRES_USER_INTERACTION;
+#endif  // (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) ||
+        // defined(__ANDROID__)
+
+  // This test uses a persistent key to keep track of how it's running.
+  const char kUrlToOpen[] =
+      "https://google.com/test_opening_short_link_from_components";
+  std::string persistent_key_str = test_info_->name();
+  const char* persistent_key = persistent_key_str.c_str();
+
+  bool owns_current_test = ClaimCurrentTest(persistent_key);
+
+  cleanup_persistent_keys_.push_back(persistent_key);
+  std::string value;
+  if (owns_current_test && !GetPersistentString(persistent_key, &value)) {
+    // The first time, create a dynamic link and open it in the browser.
+    LogDebug(
+        "First run, creating and opening short dynamic link from "
+        "components...");
+    firebase::dynamic_links::DynamicLinkComponents components =
+        GenerateComponentsForTest(kUrlToOpen);
+    firebase::Future<firebase::dynamic_links::GeneratedDynamicLink> future =
+        firebase::dynamic_links::GetShortLink(components);
+
+    if (is_desktop_stub_) {
+      // On desktop, it's enough that we just don't crash.
+      LogDebug("Succeeded as stub.");
+      SUCCEED();
+      return;
+    }
+
+    WaitForCompletion(future, "GetShortLinkFromLongLink");
+    const firebase::dynamic_links::GeneratedDynamicLink& link =
+        *future.result();
+
+    EXPECT_TRUE(link.error.empty());
+    SetPersistentString(persistent_key, kStateSentLink);
+    // This will trigger the test to start over.
+    OpenUrlInBrowser(link.url.c_str());
+    exit(0);  // Kill the app after opening the URL so it can be restarted
+              // properly.
+  } else if (owns_current_test && GetPersistentString(persistent_key, &value) &&
+             value == kStateSentLink) {
+    // The second time, check that we received the dynamic link.
+    LogDebug("Second run, checking for dynamic link...");
+    firebase::dynamic_links::DynamicLink got_link;
+    EXPECT_TRUE(shared_listener_->WaitForDynamicLink(&got_link));
+    EXPECT_EQ(got_link.url, kUrlToOpen);
+    if (got_link.url == kUrlToOpen) {
+      SetPersistentString(persistent_key, kStateReceivedLink);
+    } else {
+      SetPersistentString(persistent_key, kStateReceivedLinkFail);
+    }
+    ReleaseCurrentTest();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLink) {
+    // Already verified the link was correct.
+    LogDebug("Previously verified that dynamic link was received.");
+    SUCCEED();
+  } else if (GetPersistentString(persistent_key, &value) &&
+             value == kStateReceivedLinkFail) {
+    // Already verified the link failed.
+    FAIL() << "Previous attempt to get link failed.";
+  } else {
+    LogDebug("Skipping this test because another test has taken ownership.");
+    SUCCEED();
+  }
+}
+}  // namespace firebase_testapp_automated
diff --git a/firestore/integration_test/AndroidManifest.xml b/firestore/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..53e48648f8
--- /dev/null
+++ b/firestore/integration_test/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.cpp.database.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
diff --git a/firestore/integration_test/CMakeLists.txt b/firestore/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..e2b2911825
--- /dev/null
+++ b/firestore/integration_test/CMakeLists.txt
@@ -0,0 +1,225 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+      "-framework SystemConfiguration"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_firestore firebase_auth firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/firestore/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/firestore/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/firestore/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/firestore/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/firestore/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/firestore/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/firestore/integration_test/Info.plist b/firestore/integration_test/Info.plist
new file mode 100644
index 0000000000..c44816f632
--- /dev/null
+++ b/firestore/integration_test/Info.plist
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.firebase.cpp.firestore.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.80955193299-dpoqtev9j10pffr05pmsikfue7oc2dal</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/firestore/integration_test/LaunchScreen.storyboard b/firestore/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/firestore/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/firestore/integration_test/LibraryManifest.xml b/firestore/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..ca63578077
--- /dev/null
+++ b/firestore/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.cpp.firestore.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/firestore/integration_test/Podfile b/firestore/integration_test/Podfile
new file mode 100644
index 0000000000..5d5d22fba2
--- /dev/null
+++ b/firestore/integration_test/Podfile
@@ -0,0 +1,16 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Realtime Firestore test application.
+
+target 'integration_test' do
+  pod 'Firebase/Firestore', '6.24.0'
+  pod 'Firebase/Auth', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/firestore/integration_test/build.gradle b/firestore/integration_test/build.gradle
new file mode 100644
index 0000000000..80257d55a4
--- /dev/null
+++ b/firestore/integration_test/build.gradle
@@ -0,0 +1,78 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.cpp.firestore.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+    multiDexEnabled true
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  auth
+  firestore
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/firestore/integration_test/googletest.cmake b/firestore/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/firestore/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/firestore/integration_test/gradle/wrapper/gradle-wrapper.jar b/firestore/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/firestore/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/firestore/integration_test/gradle/wrapper/gradle-wrapper.properties b/firestore/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/firestore/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/firestore/integration_test/gradlew b/firestore/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/firestore/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/firestore/integration_test/gradlew.bat b/firestore/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/firestore/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/firestore/integration_test/integration_test.xcodeproj/project.pbxproj b/firestore/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..baae0f5067
--- /dev/null
+++ b/firestore/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,372 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
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+			);
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+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+			name = Debug;
+		};
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
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+		};
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
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+				CODE_SIGN_STYLE = Automatic;
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+				FRAMEWORK_SEARCH_PATHS = (
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+					"$(PROJECT_DIR)",
+				);
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+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/firestore/integration_test/proguard.pro b/firestore/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/firestore/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/firestore/integration_test/res/layout/main.xml b/firestore/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/firestore/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/firestore/integration_test/res/values/strings.xml b/firestore/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..a91a6c74e9
--- /dev/null
+++ b/firestore/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Firestore Integration Test</string>
+</resources>
diff --git a/firestore/integration_test/settings.gradle b/firestore/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/firestore/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/firestore/integration_test/src/integration_test.cc b/firestore/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..45f590128a
--- /dev/null
+++ b/firestore/integration_test/src/integration_test.cc
@@ -0,0 +1,565 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <string>
+#include <vector>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/auth.h"
+#include "firebase/firestore.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::GetCurrentTimeInMicroseconds;
+using app_framework::LogDebug;
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+using testing::ElementsAre;
+using testing::Pair;
+using testing::ResultOf;
+using testing::UnorderedElementsAre;
+
+// Very basic first-level tests for Firestore. More comprehensive integration
+// tests are contained in other source files.
+class FirebaseFirestoreBasicTest : public FirebaseTest {
+ public:
+  FirebaseFirestoreBasicTest();
+  ~FirebaseFirestoreBasicTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App, Firebase Auth, and Firebase Firestore.
+  void Initialize();
+  // Shut down Firebase Firestore, Firebase Auth, and Firebase App.
+  void Terminate();
+  // Sign in an anonymous user.
+  void SignIn();
+
+  // Create a custom-named collection to work with for this test.
+  firebase::firestore::CollectionReference GetTestCollection();
+
+  // Add the DocumentReference to the cleanup list. At TearDown, all these
+  // documents will be deleted.
+  firebase::firestore::DocumentReference Cleanup(
+      const firebase::firestore::DocumentReference& doc) {
+    if (find(cleanup_documents_.begin(), cleanup_documents_.end(), doc) ==
+        cleanup_documents_.end()) {
+      cleanup_documents_.push_back(doc);
+    }
+    // Pass through the DocumentReference to simplify test code.
+    return doc;
+  }
+
+  firebase::firestore::DocumentReference Doc(const char* suffix = "");
+
+  bool initialized_ = false;
+  firebase::auth::Auth* auth_ = nullptr;
+  firebase::firestore::Firestore* firestore_ = nullptr;
+
+  std::string collection_name_;
+  std::vector<firebase::firestore::DocumentReference> cleanup_documents_;
+};
+
+FirebaseFirestoreBasicTest::FirebaseFirestoreBasicTest() {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseFirestoreBasicTest::~FirebaseFirestoreBasicTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(auth_ == nullptr);
+  assert(firestore_ == nullptr);
+}
+
+void FirebaseFirestoreBasicTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseFirestoreBasicTest::TearDown() {
+  // Delete the shared path, if there is one.
+  if (initialized_) {
+    if (!cleanup_documents_.empty()) {
+      LogDebug("Cleaning up documents.");
+      std::vector<firebase::Future<void>> cleanups;
+      cleanups.reserve(cleanup_documents_.size());
+      for (int i = 0; i < cleanup_documents_.size(); ++i) {
+        cleanups.push_back(cleanup_documents_[i].Delete());
+      }
+      for (int i = 0; i < cleanups.size(); ++i) {
+        WaitForCompletion(cleanups[i], "FirebaseDatabaseTest::TearDown");
+      }
+      cleanup_documents_.clear();
+    }
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseFirestoreBasicTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Auth and Firebase Firestore.");
+
+  // 0th element has a reference to this object, the rest have the initializer
+  // targets.
+  void* initialize_targets[] = {&auth_, &firestore_};
+
+  const firebase::ModuleInitializer::InitializerFn initializers[] = {
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Auth.");
+        ::firebase::InitResult result;
+        *reinterpret_cast<::firebase::auth::Auth**>(targets[0]) =
+            ::firebase::auth::Auth::GetAuth(app, &result);
+        return result;
+      },
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Firestore.");
+        ::firebase::InitResult result;
+        firebase::firestore::Firestore* firestore =
+            firebase::firestore::Firestore::GetInstance(app, &result);
+        *reinterpret_cast<::firebase::firestore::Firestore**>(targets[1]) =
+            firestore;
+        return result;
+      }};
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(app_, initialize_targets, initializers,
+                         sizeof(initializers) / sizeof(initializers[0]));
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Auth and Firebase Firestore.");
+
+  initialized_ = true;
+}
+
+void FirebaseFirestoreBasicTest::Terminate() {
+  if (!initialized_) return;
+
+  if (firestore_) {
+    LogDebug("Shutdown the Firestore library.");
+    delete firestore_;
+    firestore_ = nullptr;
+  }
+  if (auth_) {
+    LogDebug("Shutdown the Auth library.");
+    delete auth_;
+    auth_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+void FirebaseFirestoreBasicTest::SignIn() {
+  LogDebug("Signing in.");
+  firebase::Future<firebase::auth::User*> sign_in_future =
+      auth_->SignInAnonymously();
+  WaitForCompletion(sign_in_future, "SignInAnonymously");
+  if (sign_in_future.error() != 0) {
+    FAIL() << "Ensure your application has the Anonymous sign-in provider "
+              "enabled in Firebase Console.";
+  }
+  ProcessEvents(100);
+}
+
+firebase::firestore::CollectionReference
+FirebaseFirestoreBasicTest::GetTestCollection() {
+  if (collection_name_.empty()) {
+    // Generate a collection for the test data based on the time in
+    // milliseconds.
+    int64_t time_in_microseconds = GetCurrentTimeInMicroseconds();
+
+    char buffer[21] = {0};
+    snprintf(buffer, sizeof(buffer), "test%lld",
+             static_cast<long long>(time_in_microseconds));  // NOLINT
+    collection_name_ = buffer;
+  }
+  return firestore_->Collection(collection_name_.c_str());
+}
+
+firebase::firestore::DocumentReference FirebaseFirestoreBasicTest::Doc(
+    const char* suffix) {
+  std::string path =
+      std::string(
+          ::testing::UnitTest::GetInstance()->current_test_info()->name()) +
+      suffix;
+  return Cleanup(GetTestCollection().Document(path));
+}
+
+// Test cases below.
+
+TEST_F(FirebaseFirestoreBasicTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestSignIn) {
+  SignIn();
+  EXPECT_NE(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestAppAndSettings) {
+  EXPECT_EQ(firestore_->app(), app_);
+  firebase::firestore::Settings settings = firestore_->settings();
+  firestore_->set_settings(settings);
+  // No comparison operator in settings, so just assume it worked if we didn't
+  // crash.
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestNonWrappedTypes) {
+  const firebase::Timestamp timestamp{1, 2};
+  EXPECT_EQ(timestamp.seconds(), 1);
+  EXPECT_EQ(timestamp.nanoseconds(), 2);
+  const firebase::firestore::SnapshotMetadata metadata{
+      /*has_pending_writes*/ false, /*is_from_cache*/ true};
+  EXPECT_FALSE(metadata.has_pending_writes());
+  EXPECT_TRUE(metadata.is_from_cache());
+  const firebase::firestore::GeoPoint point{1.23, 4.56};
+  EXPECT_EQ(point.latitude(), 1.23);
+  EXPECT_EQ(point.longitude(), 4.56);
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestCollection) {
+  firebase::firestore::CollectionReference collection =
+      firestore_->Collection("foo");
+  EXPECT_EQ(collection.firestore(), firestore_);
+  EXPECT_EQ(collection.id(), "foo");
+  EXPECT_EQ(collection.Document("bar").path(), "foo/bar");
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestDocument) {
+  firebase::firestore::DocumentReference document =
+      firestore_->Document("foo/bar");
+  EXPECT_EQ(document.firestore(), firestore_);
+  EXPECT_EQ(document.path(), "foo/bar");
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestSetGet) {
+  SignIn();
+
+  firebase::firestore::DocumentReference document = Doc();
+
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"str", firebase::firestore::FieldValue::String("foo")},
+          {"int", firebase::firestore::FieldValue::Integer(123)}}),
+      "document.Set");
+  firebase::Future<firebase::firestore::DocumentSnapshot> future =
+      document.Get();
+  WaitForCompletion(future, "document.Get");
+  EXPECT_NE(future.result(), nullptr);
+  EXPECT_THAT(future.result()->GetData(),
+              UnorderedElementsAre(
+                  Pair("str", firebase::firestore::FieldValue::String("foo")),
+                  Pair("int", firebase::firestore::FieldValue::Integer(123))));
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestSetUpdateGet) {
+  SignIn();
+
+  firebase::firestore::DocumentReference document = Doc();
+
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"str", firebase::firestore::FieldValue::String("foo")},
+          {"int", firebase::firestore::FieldValue::Integer(123)}}),
+      "document.Set");
+  WaitForCompletion(
+      document.Update(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(321)}}),
+      "document.Update");
+  firebase::Future<firebase::firestore::DocumentSnapshot> future =
+      document.Get();
+  WaitForCompletion(future, "document.Get");
+  EXPECT_NE(future.result(), nullptr);
+  EXPECT_THAT(future.result()->GetData(),
+              UnorderedElementsAre(
+                  Pair("str", firebase::firestore::FieldValue::String("foo")),
+                  Pair("int", firebase::firestore::FieldValue::Integer(321))));
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestSetDelete) {
+  SignIn();
+
+  firebase::firestore::DocumentReference document = Doc();
+
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"str", firebase::firestore::FieldValue::String("bar")},
+          {"int", firebase::firestore::FieldValue::Integer(456)}}),
+      "document.Set");
+
+  WaitForCompletion(document.Delete(), "document.Delete");
+  firebase::Future<firebase::firestore::DocumentSnapshot> future =
+      document.Get();
+  WaitForCompletion(future, "document.Get");
+  EXPECT_NE(future.result(), nullptr);
+  EXPECT_FALSE(future.result()->exists());
+
+  // TODO: Test error cases (deleting invalid path, etc.)
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestDocumentListener) {
+  SKIP_TEST_IF_USING_STLPORT;  // STLPort uses EventListener<T> rather than
+                               // std::function.
+#if !defined(STLPORT)
+  SignIn();
+
+  firebase::firestore::DocumentReference document = Doc();
+
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"val", firebase::firestore::FieldValue::String("start")}}),
+      "document.Set 0");
+
+  std::vector<firebase::firestore::MapFieldValue> document_snapshots;
+  firebase::firestore::ListenerRegistration registration =
+      document.AddSnapshotListener(
+          [&](const firebase::firestore::DocumentSnapshot& result,
+              firebase::firestore::Error error) {
+            EXPECT_EQ(error, firebase::firestore::kErrorOk);
+            document_snapshots.push_back(result.GetData());
+          });
+
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"val", firebase::firestore::FieldValue::String("update")}}),
+      "document.Set 1");
+  registration.Remove();
+  WaitForCompletion(
+      document.Set(firebase::firestore::MapFieldValue{
+          {"val", firebase::firestore::FieldValue::String("final")}}),
+      "document.Set 2");
+  EXPECT_THAT(
+      document_snapshots,
+      ElementsAre(
+          firebase::firestore::MapFieldValue{
+              {"val", firebase::firestore::FieldValue::String("start")}},
+          firebase::firestore::MapFieldValue{
+              {"val", firebase::firestore::FieldValue::String("update")}}));
+#endif  // !defined(STLPORT)
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestBatchWrite) {
+  SignIn();
+
+  firebase::firestore::DocumentReference document1 = Doc("1");
+  firebase::firestore::DocumentReference document2 = Doc("2");
+
+  firebase::firestore::WriteBatch batch = firestore_->batch();
+  batch.Set(document1,
+            firebase::firestore::MapFieldValue{
+                {"str", firebase::firestore::FieldValue::String("first")}});
+  batch.Set(document2,
+            firebase::firestore::MapFieldValue{
+                {"int", firebase::firestore::FieldValue::Integer(2222)}});
+  WaitForCompletion(batch.Commit(), "batch.Commit");
+
+  // Confirm the updated docs are correct.
+  auto future1 = Doc("1").Get();
+  WaitForCompletion(future1, "document.Get 1");
+  EXPECT_THAT(future1.result()->GetData(),
+              ElementsAre(Pair(
+                  "str", firebase::firestore::FieldValue::String("first"))));
+
+  auto future2 = Doc("2").Get();
+  WaitForCompletion(future2, "document.Get 2");
+  EXPECT_THAT(
+      future2.result()->GetData(),
+      ElementsAre(Pair("int", firebase::firestore::FieldValue::Integer(2222))));
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestRunTransaction) {
+  SignIn();
+
+  WaitForCompletion(
+      Doc("1").Set(firebase::firestore::MapFieldValue{
+          {"str", firebase::firestore::FieldValue::String("foo")}}),
+      "document.Set 1");
+  WaitForCompletion(
+      Doc("2").Set(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(123)}}),
+      "document.Set 2");
+  WaitForCompletion(
+      Doc("3").Set(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(678)}}),
+      "document.Set 3");
+  // Make sure there's no doc 4.
+  WaitForCompletion(Doc("4").Delete(), "document.Delete 4");
+
+  auto collection = GetTestCollection();
+
+  auto transaction_future = firestore_->RunTransaction(
+      [collection, this](firebase::firestore::Transaction& transaction,
+                         std::string&) -> firebase::firestore::Error {
+        // Set a default error to ensure that the error is filled in by Get().
+        firebase::firestore::Error geterr =
+            static_cast<firebase::firestore::Error>(-1);
+        std::string getmsg = "[[uninitialized message]]";
+        int64_t prev_int = transaction.Get(Doc("2"), &geterr, &getmsg)
+                               .Get("int")
+                               .integer_value();
+        EXPECT_EQ(geterr, firebase::firestore::kErrorOk) << getmsg;
+
+        // Update 1, increment 2, delete 3, add 4.
+        transaction.Update(
+            Doc("1"),
+            firebase::firestore::MapFieldValue{
+                {"int", firebase::firestore::FieldValue::Integer(456)}});
+        LogDebug("Previous value: %lld", prev_int);
+        transaction.Update(Doc("2"),
+                           firebase::firestore::MapFieldValue{
+                               {"int", firebase::firestore::FieldValue::Integer(
+                                           prev_int + 100)}});
+        transaction.Delete(Doc("3"));
+        transaction.Set(
+            Doc("4"),
+            firebase::firestore::MapFieldValue{
+                {"int", firebase::firestore::FieldValue::Integer(789)}});
+        return firebase::firestore::kErrorOk;
+      });
+
+  WaitForCompletion(transaction_future, "firestore.RunTransaction");
+
+  (void)Doc("4");  // Add new doc to cleanup list
+
+  // Confirm the updated docs are correct.
+  // First doc had an additional field added.
+  auto future1 = Doc("1").Get();
+  WaitForCompletion(future1, "document.Get 1");
+  EXPECT_THAT(future1.result()->GetData(),
+              UnorderedElementsAre(
+                  Pair("str", firebase::firestore::FieldValue::String("foo")),
+                  Pair("int", firebase::firestore::FieldValue::Integer(456))));
+
+  // Second doc was incremented by 100.
+  auto future2 = Doc("2").Get();
+  WaitForCompletion(future2, "document.Get 2");
+  EXPECT_THAT(
+      future2.result()->GetData(),
+      ElementsAre(Pair("int", firebase::firestore::FieldValue::Integer(223))));
+
+  // Third doc was deleted.
+  auto future3 = Doc("3").Get();
+  WaitForCompletion(future3, "document.Get 3");
+  EXPECT_FALSE(future3.result()->exists());
+
+  // Fourth doc was newly added.
+  auto future4 = Doc("4").Get();
+  WaitForCompletion(future4, "document.Get 4");
+  EXPECT_THAT(
+      future4.result()->GetData(),
+      ElementsAre(Pair("int", firebase::firestore::FieldValue::Integer(789))));
+}
+
+// TODO: Add test for failing transaction.
+
+TEST_F(FirebaseFirestoreBasicTest, TestQuery) {
+  SignIn();
+
+  firebase::firestore::CollectionReference collection = GetTestCollection();
+  // { "int" : 99, "int" : 100, "int" : 101, "int": 102, "str": "hello" }
+  // Query for int > 100 should return only the 101 and 102 entries.
+  WaitForCompletion(Doc("1").Set(firebase::firestore::MapFieldValue{
+                        {"int", firebase::firestore::FieldValue::Integer(99)}}),
+                    "document.Set 1");
+  WaitForCompletion(
+      Doc("2").Set(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(100)}}),
+      "document.Set 2");
+  WaitForCompletion(
+      Doc("3").Set(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(101)}}),
+      "document.Set 3");
+  WaitForCompletion(
+      Doc("4").Set(firebase::firestore::MapFieldValue{
+          {"int", firebase::firestore::FieldValue::Integer(102)}}),
+      "document.Set 4");
+  WaitForCompletion(
+      Doc("5").Set(firebase::firestore::MapFieldValue{
+          {"str", firebase::firestore::FieldValue::String("hello")}}),
+      "document.Set 5");
+
+  firebase::firestore::Query query = collection.WhereGreaterThan(
+      "int", firebase::firestore::FieldValue::Integer(100));
+  auto query_future = query.Get();
+  WaitForCompletion(query_future, "query.Get");
+  EXPECT_NE(query_future.result(), nullptr);
+  auto DocumentSnapshot_GetData =
+      [](const firebase::firestore::DocumentSnapshot& ds) {
+        return ds.GetData();
+      };
+  EXPECT_THAT(
+      query_future.result()->documents(),
+      UnorderedElementsAre(
+          ResultOf(DocumentSnapshot_GetData,
+                   ElementsAre(Pair(
+                       "int", firebase::firestore::FieldValue::Integer(102)))),
+          ResultOf(
+              DocumentSnapshot_GetData,
+              ElementsAre(Pair(
+                  "int", firebase::firestore::FieldValue::Integer(101))))));
+}
+
+TEST_F(FirebaseFirestoreBasicTest,
+       TestInvalidatingReferencesWhenDeletingFirestore) {
+  delete firestore_;
+  firestore_ = nullptr;
+  // TODO: Ensure existing Firestore objects are invalidated.
+}
+
+TEST_F(FirebaseFirestoreBasicTest, TestInvalidatingReferencesWhenDeletingApp) {
+  delete app_;
+  app_ = nullptr;
+  // TODO: Ensure existing Firestore objects are invalidated.
+}
+
+// TODO: Add test for Auth signout while connected.
+
+// TODO: Add additional comprehensive tests as needed.
+
+}  // namespace firebase_testapp_automated
diff --git a/functions/integration_test/AndroidManifest.xml b/functions/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..329c1e684b
--- /dev/null
+++ b/functions/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.cpp.functions.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/functions/integration_test/CMakeLists.txt b/functions/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..8a536b2095
--- /dev/null
+++ b/functions/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_functions firebase_auth firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/functions/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/functions/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/functions/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/functions/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/functions/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/functions/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/functions/integration_test/Info.plist b/functions/integration_test/Info.plist
new file mode 100644
index 0000000000..651edd416c
--- /dev/null
+++ b/functions/integration_test/Info.plist
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.firebase.cpp.functions.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.760619882947-d7uc3pt0rijrudd8mjhc397q5cbm7969</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/functions/integration_test/LaunchScreen.storyboard b/functions/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/functions/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/functions/integration_test/LibraryManifest.xml b/functions/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..2c020252c0
--- /dev/null
+++ b/functions/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.cpp.functions.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/functions/integration_test/Podfile b/functions/integration_test/Podfile
new file mode 100644
index 0000000000..bb0c08bab9
--- /dev/null
+++ b/functions/integration_test/Podfile
@@ -0,0 +1,16 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Cloud Functions for Firebase test application.
+
+target 'integration_test' do
+  pod 'Firebase/Functions', '6.24.0'
+  pod 'Firebase/Auth', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/functions/integration_test/build.gradle b/functions/integration_test/build.gradle
new file mode 100644
index 0000000000..97770d76ab
--- /dev/null
+++ b/functions/integration_test/build.gradle
@@ -0,0 +1,77 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.cpp.functions.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  auth
+  functions
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/functions/integration_test/googletest.cmake b/functions/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/functions/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/functions/integration_test/gradle/wrapper/gradle-wrapper.jar b/functions/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/functions/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/functions/integration_test/gradle/wrapper/gradle-wrapper.properties b/functions/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/functions/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/functions/integration_test/gradlew b/functions/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/functions/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/functions/integration_test/gradlew.bat b/functions/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/functions/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/functions/integration_test/integration_test.xcodeproj/project.pbxproj b/functions/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/functions/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/functions/integration_test/proguard.pro b/functions/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/functions/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/functions/integration_test/res/layout/main.xml b/functions/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/functions/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/functions/integration_test/res/values/strings.xml b/functions/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..b1d23c931a
--- /dev/null
+++ b/functions/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Cloud Functions for Firebase Integration Test</string>
+</resources>
diff --git a/functions/integration_test/settings.gradle b/functions/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/functions/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/functions/integration_test/src/integration_test.cc b/functions/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..4b58e2c4bf
--- /dev/null
+++ b/functions/integration_test/src/integration_test.cc
@@ -0,0 +1,326 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/auth.h"
+#include "firebase/functions.h"
+#include "firebase/util.h"
+#include "firebase/variant.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+
+const char kIntegrationTestRootPath[] = "integration_test_data";
+
+class FirebaseFunctionsTest : public FirebaseTest {
+ public:
+  FirebaseFunctionsTest();
+  ~FirebaseFunctionsTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App, Firebase Auth, and Firebase Functions.
+  void Initialize();
+  // Shut down Firebase Functions, Firebase Auth, and Firebase App.
+  void Terminate();
+  // Sign in an anonymous user.
+  void SignIn();
+
+  firebase::Future<firebase::functions::HttpsCallableResult> TestFunction(
+      const char* function_name, const firebase::Variant* const function_data,
+      const firebase::Variant& expected_result,
+      firebase::functions::Error expected_error =
+          firebase::functions::kErrorNone);
+
+  bool initialized_;
+  firebase::auth::Auth* auth_;
+  firebase::functions::Functions* functions_;
+};
+
+FirebaseFunctionsTest::FirebaseFunctionsTest()
+    : initialized_(false), auth_(nullptr), functions_(nullptr) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseFunctionsTest::~FirebaseFunctionsTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(auth_ == nullptr);
+  assert(functions_ == nullptr);
+}
+
+void FirebaseFunctionsTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseFunctionsTest::TearDown() {
+  // Delete the shared path, if there is one.
+  if (initialized_) {
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseFunctionsTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Auth and Firebase Functions.");
+
+  // 0th element has a reference to this object, the rest have the initializer
+  // targets.
+  void* initialize_targets[] = {&auth_, &functions_};
+
+  const firebase::ModuleInitializer::InitializerFn initializers[] = {
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Auth.");
+        ::firebase::InitResult result;
+        *reinterpret_cast<::firebase::auth::Auth**>(targets[0]) =
+            ::firebase::auth::Auth::GetAuth(app, &result);
+        return result;
+      },
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Functions.");
+        ::firebase::InitResult result;
+        firebase::functions::Functions* functions =
+            firebase::functions::Functions::GetInstance(app, &result);
+        *reinterpret_cast<::firebase::functions::Functions**>(targets[1]) =
+            functions;
+        return result;
+      }};
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(app_, initialize_targets, initializers,
+                         sizeof(initializers) / sizeof(initializers[0]));
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Auth and Firebase Functions.");
+
+  initialized_ = true;
+}
+
+void FirebaseFunctionsTest::Terminate() {
+  if (!initialized_) return;
+
+  if (functions_) {
+    LogDebug("Shutdown the Functions library.");
+    delete functions_;
+    functions_ = nullptr;
+  }
+  if (auth_) {
+    LogDebug("Shutdown the Auth library.");
+    delete auth_;
+    auth_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+void FirebaseFunctionsTest::SignIn() {
+  LogDebug("Signing in.");
+  firebase::Future<firebase::auth::User*> sign_in_future =
+      auth_->SignInAnonymously();
+  WaitForCompletion(sign_in_future, "SignInAnonymously");
+  if (sign_in_future.error() != 0) {
+    FAIL() << "Ensure your application has the Anonymous sign-in provider "
+              "enabled in Firebase Console.";
+  }
+  ProcessEvents(100);
+}
+
+// A helper function for calling a Firebase Function and waiting on the result.
+firebase::Future<firebase::functions::HttpsCallableResult>
+FirebaseFunctionsTest::TestFunction(
+    const char* function_name, const firebase::Variant* const function_data,
+    const firebase::Variant& expected_result,
+    firebase::functions::Error expected_error) {
+  // Create a callable that we can run our test with.
+  LogDebug("Calling %s", function_name);
+  firebase::functions::HttpsCallableReference ref;
+  ref = functions_->GetHttpsCallable(function_name);
+
+  firebase::Future<firebase::functions::HttpsCallableResult> future;
+  if (function_data == nullptr) {
+    future = ref.Call();
+  } else {
+    future = ref.Call(*function_data);
+  }
+  WaitForCompletion(future,
+                    (std::string("CallFunction ") + function_name).c_str(),
+                    expected_error);
+  if (!expected_result.is_null()) {
+    EXPECT_EQ(VariantToString(expected_result),
+              VariantToString(future.result()->data()))
+        << "Unexpected result from calling " << function_name;
+  }
+  return future;
+}
+
+TEST_F(FirebaseFunctionsTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseFunctionsTest, TestSignIn) {
+  SignIn();
+  EXPECT_NE(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseFunctionsTest, TestFunction) {
+  SignIn();
+
+  // addNumbers(5, 7) = 12
+  firebase::Variant data(firebase::Variant::EmptyMap());
+  data.map()["firstNumber"] = 5;
+  data.map()["secondNumber"] = 7;
+  firebase::Variant result =
+      TestFunction("addNumbers", &data, firebase::Variant::Null())
+          .result()
+          ->data();
+  EXPECT_TRUE(result.is_map());
+  EXPECT_EQ(result.map()["operationResult"], 12);
+}
+
+TEST_F(FirebaseFunctionsTest, TestFunctionWithData) {
+  SignIn();
+
+  std::map<std::string, firebase::Variant> data_map;
+  data_map["bool"] = firebase::Variant::True();
+  data_map["int"] = firebase::Variant(2);
+  data_map["long"] = firebase::Variant(static_cast<int64_t>(3));
+  // TODO: Add this back when we add Date support.
+  // 1998-09-04T22:14:15.926Z
+  // data["date"] = firebase::functions::EncodeDate(904947255926);
+  data_map["string"] = firebase::Variant("four");
+  std::vector<int> array;
+  array.push_back(5);
+  array.push_back(6);
+  data_map["array"] = firebase::Variant(array);
+  data_map["null"] = firebase::Variant::Null();
+
+  std::map<std::string, firebase::Variant> expected;
+  expected["message"] = firebase::Variant("stub response");
+  expected["code"] = firebase::Variant(42);
+  expected["long"] = firebase::Variant(420);
+  std::vector<int> expected_array;
+  expected_array.push_back(1);
+  expected_array.push_back(2);
+  expected_array.push_back(3);
+  expected["array"] = firebase::Variant(expected_array);
+  // TODO: Add this back when we add Date support.
+  // 2017-09-04T22:14:15.000
+  // expected["date"] =
+  // firebase::Variant(static_cast<int64_t>(1504563255000));
+  firebase::Variant data(data_map);
+  TestFunction("dataTest", &data, firebase::Variant(expected));
+}
+
+TEST_F(FirebaseFunctionsTest, TestFunctionWithScalar) {
+  SignIn();
+
+  // Passing in and returning a scalar value instead of an object.
+  firebase::Variant data(17);
+  TestFunction("scalarTest", &data, firebase::Variant(76));
+}
+
+TEST_F(FirebaseFunctionsTest, TestFunctionWithAuthToken) {
+  SignIn();
+
+  // With an auth token.
+  firebase::Variant data(firebase::Variant::EmptyMap());
+  TestFunction("tokenTest", &data, firebase::Variant::EmptyMap());
+}
+
+// Disabling test temporarily. (b/143598197)
+TEST_F(FirebaseFunctionsTest, DISABLED_TestFunctionWithInstanceId) {
+#if defined(__ANDROID__) || TARGET_OS_IPHONE
+  SignIn();
+
+  // With an instance ID.
+  firebase::Variant data(firebase::Variant::EmptyMap());
+  TestFunction("instanceIdTest", &data, firebase::Variant::EmptyMap());
+#endif  // defined(__ANDROID__) || TARGET_OS_IPHONE
+}
+
+TEST_F(FirebaseFunctionsTest, TestFunctionWithNull) {
+  SignIn();
+
+  // With an explicit null.
+  firebase::Variant data(firebase::Variant::Null());
+  TestFunction("nullTest", &data, firebase::Variant::Null());
+
+  // With a void call.
+  TestFunction("nullTest", nullptr, data);
+}
+
+TEST_F(FirebaseFunctionsTest, TestErrorHandling) {
+  SignIn();
+
+  // With the data/result field missing in the response.
+  TestFunction("missingResultTest", nullptr, firebase::Variant::Null(),
+               firebase::functions::kErrorInternal);
+
+  // With a response that is not valid JSON.
+  TestFunction("unhandledErrorTest", nullptr, firebase::Variant::Null(),
+               firebase::functions::kErrorInternal);
+
+  // With an invalid error code.
+  TestFunction("unknownErrorTest", nullptr, firebase::Variant::Null(),
+               firebase::functions::kErrorInternal);
+
+  // With an explicit error code and message.
+  TestFunction("explicitErrorTest", nullptr, firebase::Variant::Null(),
+               firebase::functions::kErrorOutOfRange);
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/instance_id/integration_test/AndroidManifest.xml b/instance_id/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..f62f84f38d
--- /dev/null
+++ b/instance_id/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.instanceid.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/instance_id/integration_test/CMakeLists.txt b/instance_id/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..4ceedc6403
--- /dev/null
+++ b/instance_id/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+# Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_instance_id firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/instance_id/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/instance_id/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/instance_id/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/instance_id/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/instance_id/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/instance_id/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/instance_id/integration_test/Info.plist b/instance_id/integration_test/Info.plist
new file mode 100644
index 0000000000..7d05423d5d
--- /dev/null
+++ b/instance_id/integration_test/Info.plist
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.firebase.instanceid.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.564468233704-670b1qgtr09mp1g8k9uklkjmchln0950</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/instance_id/integration_test/LaunchScreen.storyboard b/instance_id/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/instance_id/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/instance_id/integration_test/LibraryManifest.xml b/instance_id/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..b61eeb2057
--- /dev/null
+++ b/instance_id/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.instanceid.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/instance_id/integration_test/Podfile b/instance_id/integration_test/Podfile
new file mode 100644
index 0000000000..df257230f2
--- /dev/null
+++ b/instance_id/integration_test/Podfile
@@ -0,0 +1,16 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Instance ID test application.
+
+target 'integration_test' do
+  pod 'Firebase/Analytics', '6.24.0'
+  pod 'FirebaseInstanceID', '4.3.4'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/instance_id/integration_test/build.gradle b/instance_id/integration_test/build.gradle
new file mode 100644
index 0000000000..4fe87588fe
--- /dev/null
+++ b/instance_id/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.instanceid.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  instanceId
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/instance_id/integration_test/googletest.cmake b/instance_id/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/instance_id/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/instance_id/integration_test/gradle/wrapper/gradle-wrapper.jar b/instance_id/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/instance_id/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/instance_id/integration_test/gradle/wrapper/gradle-wrapper.properties b/instance_id/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/instance_id/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/instance_id/integration_test/gradlew b/instance_id/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/instance_id/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/instance_id/integration_test/gradlew.bat b/instance_id/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/instance_id/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/instance_id/integration_test/integration_test.xcodeproj/project.pbxproj b/instance_id/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/instance_id/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/instance_id/integration_test/proguard.pro b/instance_id/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/instance_id/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/instance_id/integration_test/res/layout/main.xml b/instance_id/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/instance_id/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/instance_id/integration_test/res/values/strings.xml b/instance_id/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..0202809a5f
--- /dev/null
+++ b/instance_id/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Instance ID Integration Test</string>
+</resources>
diff --git a/instance_id/integration_test/settings.gradle b/instance_id/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/instance_id/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/instance_id/integration_test/src/integration_test.cc b/instance_id/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..034fceaf55
--- /dev/null
+++ b/instance_id/integration_test/src/integration_test.cc
@@ -0,0 +1,224 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/instance_id.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseInstanceIdTest : public FirebaseTest {
+ public:
+  FirebaseInstanceIdTest();
+  ~FirebaseInstanceIdTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App and Firebase IID.
+  void Initialize();
+  // Shut down Firebase IID and Firebase App.
+  void Terminate();
+
+  bool initialized_;
+  firebase::instance_id::InstanceId* instance_id_;
+};
+
+FirebaseInstanceIdTest::FirebaseInstanceIdTest()
+    : initialized_(false), instance_id_(nullptr) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseInstanceIdTest::~FirebaseInstanceIdTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(instance_id_ == nullptr);
+}
+
+void FirebaseInstanceIdTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseInstanceIdTest::TearDown() {
+  // Delete the shared path, if there is one.
+  if (initialized_) {
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseInstanceIdTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Instance ID.");
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(
+      app_, &instance_id_, [](::firebase::App* app, void* target) {
+        LogDebug("Try to initialize Firebase Instance ID");
+        firebase::InitResult result;
+        firebase::instance_id::InstanceId** iid_ptr =
+            reinterpret_cast<firebase::instance_id::InstanceId**>(target);
+        *iid_ptr =
+            firebase::instance_id::InstanceId::GetInstanceId(app, &result);
+        return result;
+      });
+
+  FirebaseTest::WaitForCompletion(initializer.InitializeLastResult(),
+                                  "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Instance ID.");
+
+  initialized_ = true;
+}
+
+void FirebaseInstanceIdTest::Terminate() {
+  if (!initialized_) return;
+
+  if (instance_id_) {
+    LogDebug("Shutdown the Instance ID library.");
+    delete instance_id_;
+    instance_id_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+TEST_F(FirebaseInstanceIdTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseInstanceIdTest, TestCanGetId) {
+  firebase::Future<std::string> id = instance_id_->GetId();
+  WaitForCompletion(id, "GetId");
+  EXPECT_NE(*id.result(), "");
+}
+
+TEST_F(FirebaseInstanceIdTest, TestGettingIdTwiceMatches) {
+  firebase::Future<std::string> id = instance_id_->GetId();
+  WaitForCompletion(id, "GetId");
+  EXPECT_NE(*id.result(), "");
+  std::string first_id = *id.result();
+  id = instance_id_->GetId();
+  WaitForCompletion(id, "GetId 2");
+  EXPECT_EQ(*id.result(), first_id);
+}
+
+TEST_F(FirebaseInstanceIdTest, TestDeleteIdGivesNewIdNextTime) {
+  firebase::Future<std::string> id = instance_id_->GetId();
+  WaitForCompletion(id, "GetId");
+  EXPECT_NE(*id.result(), "");
+  std::string first_id = *id.result();
+
+  firebase::Future<void> del = instance_id_->DeleteId();
+  WaitForCompletion(del, "DeleteId");
+
+  // Ensure that we now get a different IID.
+  id = instance_id_->GetId();
+  WaitForCompletion(id, "GetId 2");
+  EXPECT_NE(*id.result(), "");
+#if defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  // Desktop is a stub and returns the same ID, but on mobile it should
+  // return a new ID.
+  EXPECT_NE(*id.result(), first_id);
+#endif  // defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) &&
+        // TARGET_OS_IPHONE)
+}
+
+TEST_F(FirebaseInstanceIdTest, TestCanGetToken) {
+  firebase::Future<std::string> token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken");
+  EXPECT_NE(*token.result(), "");
+}
+
+TEST_F(FirebaseInstanceIdTest, TestGettingTokenTwiceMatches) {
+  firebase::Future<std::string> token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken");
+  EXPECT_NE(*token.result(), "");
+  std::string first_token = *token.result();
+  token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken 2");
+  EXPECT_EQ(*token.result(), first_token);
+}
+
+// Test disabled due to flakiness (b/143697451).
+TEST_F(FirebaseInstanceIdTest, DISABLED_TestDeleteTokenGivesNewTokenNextTime) {
+  firebase::Future<std::string> token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken");
+  EXPECT_NE(*token.result(), "");
+  std::string first_token = *token.result();
+
+  firebase::Future<void> del = instance_id_->DeleteToken();
+  WaitForCompletion(del, "DeleteToken");
+
+  // Ensure that we now get a different IID.
+  token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken 2");
+  EXPECT_NE(*token.result(), "");
+#if defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  // Desktop is a stub and returns the same token, but on mobile it should
+  // return a new token.
+  EXPECT_NE(*token.result(), first_token);
+#endif  // defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) &&
+        // TARGET_OS_IPHONE)
+}
+
+TEST_F(FirebaseInstanceIdTest, TestCanGetIdAndTokenTogether) {
+  firebase::Future<std::string> id = instance_id_->GetId();
+  firebase::Future<std::string> token = instance_id_->GetToken();
+  WaitForCompletion(token, "GetToken");
+  WaitForCompletion(id, "GetId");
+  EXPECT_NE(*id.result(), "");
+  EXPECT_NE(*token.result(), "");
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/messaging/integration_test/AndroidManifest.xml b/messaging/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..08ec978150
--- /dev/null
+++ b/messaging/integration_test/AndroidManifest.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.cpp.messaging.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <!-- Required by firebase-iid from
+       java/com/google/android/gmscore/integ/client/firebase-iid/\
+       AndroidManifest.xml -->
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
+
+  <permission
+      android:name="com.google.firebase.cpp.messaging.testapp.permission.C2D_MESSAGE"
+      android:protectionLevel="signature" />
+  <uses-permission
+      android:name="com.google.firebase.cpp.messaging.testapp.permission.C2D_MESSAGE" />
+
+  <application android:label="@string/app_name">
+
+    <!-- The SampleNativeActivity is a class that extends NativeActivity to
+         work around a known issue when receiving notification data payloads in
+         the background. -->
+    <activity android:name="com.google.firebase.example.SampleNativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize"
+              android:launchMode="singleTop"
+              android:exported="true">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+
+      <!-- To take advantage of deep links in Firebase Messages on Android, your
+           app must be configured to listen for links to your domain. Update the
+           URLs in the following intent-filter to enable links for your app. -->
+      <intent-filter>
+        <action android:name="android.intent.action.VIEW"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <category android:name="android.intent.category.BROWSABLE"/>
+        <data android:host="change-this-domain.example.com" android:scheme="http"/>
+        <data android:host="change-this-domain.example.com" android:scheme="https"/>
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+
+    <service android:name="com.google.firebase.messaging.cpp.ListenerService"
+             android:exported="false" >
+      <intent-filter>
+        <action android:name="com.google.firebase.MESSAGING_EVENT" />
+      </intent-filter>
+    </service>
+
+    <service android:name="com.google.firebase.messaging.cpp.RegistrationIntentService"
+             android:exported="false" >
+    </service>
+    <service android:name="com.google.firebase.messaging.MessageForwardingService"
+             android:exported="false" >
+    </service>
+
+  </application>
+
+</manifest>
diff --git a/messaging/integration_test/CMakeLists.txt b/messaging/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..ad991ccb54
--- /dev/null
+++ b/messaging/integration_test/CMakeLists.txt
@@ -0,0 +1,226 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+    src/desktop/desktop_firebase_test_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_messaging firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/messaging/integration_test/Firebase_Cpp_Messaging_Test_App_Dev.mobileprovision b/messaging/integration_test/Firebase_Cpp_Messaging_Test_App_Dev.mobileprovision
new file mode 100644
index 0000000000..d2e2a24c51
Binary files /dev/null and b/messaging/integration_test/Firebase_Cpp_Messaging_Test_App_Dev.mobileprovision differ
diff --git a/messaging/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/messaging/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/messaging/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/messaging/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/messaging/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/messaging/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/messaging/integration_test/Info.plist b/messaging/integration_test/Info.plist
new file mode 100644
index 0000000000..319f56a445
--- /dev/null
+++ b/messaging/integration_test/Info.plist
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.FirebaseCppMessagingTestApp.dev</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>remote-notification</string>
+	</array>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/messaging/integration_test/LaunchScreen.storyboard b/messaging/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/messaging/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/messaging/integration_test/LibraryManifest.xml b/messaging/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..90c5fb93d7
--- /dev/null
+++ b/messaging/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.cpp.messaging.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/messaging/integration_test/Podfile b/messaging/integration_test/Podfile
new file mode 100644
index 0000000000..569d4e37bd
--- /dev/null
+++ b/messaging/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Cloud Messaging test application.
+
+target 'integration_test' do
+  pod 'Firebase/Messaging', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/messaging/integration_test/build.gradle b/messaging/integration_test/build.gradle
new file mode 100644
index 0000000000..d9b17a960e
--- /dev/null
+++ b/messaging/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.cpp.messaging.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  messaging
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/messaging/integration_test/googletest.cmake b/messaging/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/messaging/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/messaging/integration_test/gradle/wrapper/gradle-wrapper.jar b/messaging/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/messaging/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/messaging/integration_test/gradle/wrapper/gradle-wrapper.properties b/messaging/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/messaging/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/messaging/integration_test/gradlew b/messaging/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/messaging/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/messaging/integration_test/gradlew.bat b/messaging/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/messaging/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/messaging/integration_test/integration_test.entitlements b/messaging/integration_test/integration_test.entitlements
new file mode 100644
index 0000000000..e38c46b835
--- /dev/null
+++ b/messaging/integration_test/integration_test.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>application-identifier</key>
+  <string>$(AppIdentifierPrefix)$(CFBundleIdentifier)</string>
+  <key>aps-environment</key>
+  <string>development</string>
+</dict>
+</plist>
diff --git a/messaging/integration_test/integration_test.xcodeproj/project.pbxproj b/messaging/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/messaging/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/messaging/integration_test/proguard.pro b/messaging/integration_test/proguard.pro
new file mode 100644
index 0000000000..16b4cf1f7a
--- /dev/null
+++ b/messaging/integration_test/proguard.pro
@@ -0,0 +1,3 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
+-keep,includedescriptorclasses public class com.google.firebase.example.SampleNativeActivity { * ; }
diff --git a/messaging/integration_test/readme.md b/messaging/integration_test/readme.md
new file mode 100644
index 0000000000..ea47af7387
--- /dev/null
+++ b/messaging/integration_test/readme.md
@@ -0,0 +1,258 @@
+Firebase Cloud Messaging Quickstart
+===================================
+
+The Firebase Cloud Messaging Test Application (testapp) demonstrates receiving
+Firebase Cloud Messages using the Firebase Cloud Messaging C++ SDK. This
+application has no user interface and simply logs actions it's performing to the
+console.
+
+Introduction
+------------
+
+- [Read more about Firebase Cloud Messaging](https://firebase.google.com/docs/cloud-messaging/)
+
+Building and Running the testapp
+--------------------------------
+### iOS
+  - Link your iOS app to the Firebase libraries.
+    - Get CocoaPods version 1 or later by running,
+
+    ```
+    sudo gem install cocoapods --pre
+    ```
+    - From the testapp directory, install the CocoaPods listed in the Podfile by
+    running,
+    ```
+    pod install
+    ```
+    - Open the generated Xcode workspace (which now has the CocoaPods),
+
+    ```
+    open testapp.xcworkspace
+    ```
+    - For further details please refer to the
+    [general instructions for setting up an iOS app with Firebase](https://firebase.google.com/docs/ios/setup).
+
+  - Register your iOS app with Firebase.
+    - Create a new app on
+    [firebase.google.com/console](https://firebase.google.com/console/)
+    , and attach your iOS app to it.
+      - For Messaging, you will need an App Store ID. Use something random such
+        as 12345678."
+      - You can use "com.google.FirebaseCppMessagingTestApp.dev" as the iOS Bundle ID
+        while you're testing.
+    - Add the GoogleService-Info.plist that you downloaded from Firebase
+      console to the testapp root directory. This file identifies your iOS app
+      to the Firebase backend.
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Add the following frameworks from the Firebase C++ SDK to the project:
+    - frameworks/ios/universal/firebase.framework
+    - frameworks/ios/universal/firebase_messaging.framework
+    - You will need to either,
+       1. Check "Copy items if needed" when adding the frameworks, or
+       2. Add the framework path in "Framework Search Paths"
+          - e.g. If you downloaded the Firebase C++ SDK to
+            `/Users/me/firebase_cpp_sdk`,
+            then you would add the path
+            `/Users/me/firebase_cpp_sdk/frameworks/ios/universal`.
+          - To add the path, in XCode, select your project in the project
+            navigator, then select your target in the main window.
+            Select the "Build Settings" tab, and click "All" to see all
+            the build settings. Scroll down to "Search Paths", and add
+            your path to "Framework Search Paths".
+          - You need a valid
+            [APNs](https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/ApplePushService.html)
+            certificate. If you don't already have one, see
+            [Provisioning APNs SSL Certificates.](https://firebase.google.com/docs/cloud-messaging/ios/certs)
+  - Configure the Xcode project for push messaging.
+      - Select the `testapp` project from the `Navigator area`.
+      - Select the `testapp` target from the `Editor area`.
+      - Select the `General` tab from the `Editor area`.
+      - Scroll down to `Linked Frameworks and Libraries` and click the `+`
+        button to add a framework.
+        - In the window that appears, scroll to `UserNotifications.framework`
+          and click on that entry, then click on `Add`. This framework will only
+          appear in Xcode version 8 and higher, required by this library.
+      - Select the `Capabilities` tab from the `Editor area`.
+      - Switch `Push Notifications` to `On`.
+      - Scroll down to `Background Modes` and switch it to `On`.
+      - Tick the `Remote notifications` box under `Background Modes`.
+  - In XCode, build & run the sample on an iOS device or simulator.
+  - The testapp has no user interface. The output of the app can be viewed
+    via the console.  In Xcode,  select
+    `View --> Debug Area --> Activate Console` from the menu.
+
+### Android
+**Register your Android app with Firebase.**
+
+- Create a new app on
+[firebase.google.com/console](https://firebase.google.com/console/)
+, and attach your Android app to it.
+- You can use "com.google.android.messaging.testapp" as the Package Name
+while you're testing.
+- To [generate a SHA1](https://developers.google.com/android/guides/client-auth)
+run this command (_Note: the default password is 'android'_):
+    * Mac and Linux:
+
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore
+        ```
+    * Windows:
+
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore
+        ```
+- If keytool reports that you do not have a debug.keystore, you can
+[create one](http://developer.android.com/tools/publishing/app-signing.html#signing-manually)
+with:
+
+    ```
+    keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"
+    ```
+- Add the `google-services.json` file that you downloaded from Firebase
+  console to the root directory of testapp. This file identifies your
+  Android app to the Firebase backend.
+- For further details please refer to the
+[general instructions for setting up an Android app with Firebase](https://firebase.google.com/docs/android/setup).
+
+- Download the Firebase C++ SDK linked from
+  [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+  and unzip it to a directory of your choice.
+
+**Configure your SDK paths**
+
+- Configure the location of the Firebase C++ SDK by setting the
+`firebase_cpp_sdk.dir` Gradle property to the SDK install directory.
+  * Run this command in the project directory, and modify the path to match your
+  local installation path:
+
+    ```
+    echo "systemProp.firebase_cpp_sdk.dir=/User/$USER/firebase_cpp_sdk" >> gradle.properties
+    ```
+- Ensure the Android SDK and NDK locations are set in Android Studio.
+    * From the Android Studio launch menu, go to `File/Project Structure...` or
+      `Configure/Project Defaults/Project Structure...`
+      (Shortcut: Control + Alt + Shift + S on windows,  Command + ";" on a mac)
+      and download the SDK and NDK if the locations are not yet set.
+    * Android Studio will write these paths to `local.properties`.
+
+**Optional: Configure your deep link URL**
+
+- To enable your app to receive deep links via FCM, you will need to add an
+  intent filter to your AndroidManifest.xml in the native activity that
+  associates your domain with your app.
+
+```
+<intent-filter>
+  <action android:name="android.intent.action.VIEW"/>
+  <category android:name="android.intent.category.DEFAULT"/>
+  <category android:name="android.intent.category.BROWSABLE"/>
+  <data android:host="your-domain-here.example.com" android:scheme="http"/>
+  <data android:host="your-domain-here.example.com" android:scheme="https"/>
+</intent-filter>
+```
+
+**Build & Run**
+
+- Open `build.gradle` in Android Studio.
+    - From the Android Studio launch menu, "Open an existing Android Studio
+      project", and select `build.gradle`.
+- Install the SDK Platforms that Android Studio reports missing.
+- Build the testapp and run it on an Android device or emulator.
+- See [below](#using_the_test_app) for usage instructions.
+
+### Desktop
+  - Register your app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/),
+      following the above instructions for Android or iOS.
+    - If you have an Android project, add the `google-services.json` file that
+      you downloaded from the Firebase console to the root directory of the
+      testapp.
+    - If you have an iOS project, and don't wish to use an Android project,
+      you can use the Python script `generate_xml_from_google_services_json.py --plist`,
+      located in the Firebase C++ SDK, to convert your `GoogleService-Info.plist`
+      file into a `google-services-desktop.json` file, which can then be
+      placed in the root directory of the testapp.
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the testapp with the location of the Firebase C++ SDK.
+    This can be done a couple different ways (in highest to lowest priority):
+    - When invoking cmake, pass in the location with
+      -DFIREBASE_CPP_SDK_DIR=/path/to/firebase_cpp_sdk.
+    - Set an environment variable for FIREBASE_CPP_SDK_DIR to the path to use.
+    - Edit the CMakeLists.txt file, changing the FIREBASE_CPP_SDK_DIR path
+      to the appropriate location.
+  - From the testapp directory, generate the build files by running,
+      ```
+      cmake .
+      ```
+    If you want to use XCode, you can use -G"Xcode" to generate the project.
+    Similarly, to use Visual Studio, -G"Visual Studio 15 2017". For more
+    information, see
+    [CMake generators](https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html).
+  - Build the testapp, by either opening the generated project file based on
+    the platform, or running,
+      ```
+      cmake --build .
+      ```
+  - Execute the testapp by running,
+      ```
+      ./desktop_testapp
+      ```
+    Note that the executable might be under another directory, such as Debug.
+  - The testapp has no user interface, but the output can be viewed via the
+    console. Note that Messaging uses a stubbed implementation on desktop,
+    so functionality is not expected.
+
+Using the Test App
+------------------
+
+- Install and run the test app on your iOS or Android device or emulator.
+- The application has minimal user interface. The output of the app can be
+viewed via the console:
+    * **iOS**: Open select "View --> Debug Area --> Activate Console" from the
+    menu in Xcode.
+    * **Android**: View the logcat output in Android studio or by running
+    "adb logcat" from the command line.
+- When you first run the app, it will print:
+`Received Registration Token: <code>`. Copy this code to a text editor.
+- Copy the ServerKey from the firebase console:
+  - Open your project in the
+    [Firebase Console](https://firebase.google.com/console/).
+  - Click the gear icon then `Project settings` in the menu on the left
+  - Select the `Cloud Messaging` tab.
+  - Copy the `Server Key`
+- Replace `<Server Key>` and `<Registration Token>` in this command and run it
+from the command line.
+```
+curl --header "Authorization: key=<Server Key>" --header "Content-Type: application/json" https://android.googleapis.com/gcm/send -d '{"notification":{"title":"Hi","body":"Hello from the Cloud"},"data":{"score":"lots"},"to":"<Registration Token>"}'
+```
+- Observe the command received in the app, via the console output.
+
+Support
+-------
+
+[https://firebase.google.com/support/](https://firebase.google.com/support/)
+
+License
+-------
+
+Copyright 2016 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/messaging/integration_test/res/layout/main.xml b/messaging/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/messaging/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/messaging/integration_test/res/values/strings.xml b/messaging/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..0b0c595859
--- /dev/null
+++ b/messaging/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Cloud Messaging Integration Test</string>
+</resources>
diff --git a/messaging/integration_test/settings.gradle b/messaging/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/messaging/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/messaging/integration_test/src/android/java/com/google/firebase/example/SampleNativeActivity.java b/messaging/integration_test/src/android/java/com/google/firebase/example/SampleNativeActivity.java
new file mode 100644
index 0000000000..3706c6acad
--- /dev/null
+++ b/messaging/integration_test/src/android/java/com/google/firebase/example/SampleNativeActivity.java
@@ -0,0 +1,73 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.firebase.example;
+
+import android.app.NativeActivity;
+import android.content.Intent;
+import android.os.Bundle;
+import com.google.firebase.messaging.MessageForwardingService;
+
+/**
+ * SampleNativeActivity is a NativeActivity that updates its intent when new intents are sent to
+ * it.
+ *
+ * This is a workaround for a known issue that prevents the native C++ library from responding to
+ * data payloads when both a data and notification payload are sent to the app while it is in the
+ * background.
+ */
+public class SampleNativeActivity extends NativeActivity {
+  // The key in the intent's extras that maps to the incoming message's message ID. Only sent by
+  // the server, GmsCore sends EXTRA_MESSAGE_ID_KEY below. Server can't send that as it would get
+  // stripped by the client.
+  private static final String EXTRA_MESSAGE_ID_KEY_SERVER = "message_id";
+
+  // An alternate key value in the intent's extras that also maps to the incoming message's message
+  // ID. Used by upstream, and set by GmsCore.
+  private static final String EXTRA_MESSAGE_ID_KEY = "google.message_id";
+
+  // The key in the intent's extras that maps to the incoming message's sender value.
+  private static final String EXTRA_FROM = "google.message_id";
+
+  /**
+   * Workaround for when a message is sent containing both a Data and Notification payload.
+   *
+   * When the app is in the foreground all data payloads are sent to the method
+   * `::firebase::messaging::Listener::OnMessage`. However, when the app is in the background, if a
+   * message with both a data and notification payload is receieved the data payload is stored on
+   * the notification Intent. NativeActivity does not provide native callbacks for onNewIntent, so
+   * it cannot route the data payload that is stored in the Intent to the C++ function OnMessage. As
+   * a workaround, we override onNewIntent so that it forwards the intent to the C++ library's
+   * service which in turn forwards the data to the native C++ messaging library.
+   */
+  @Override
+  protected void onNewIntent(Intent intent) {
+    // If we do not have a 'from' field this intent was not a message and should not be handled. It
+    // probably means this intent was fired by tapping on the app icon.
+    Bundle extras = intent.getExtras();
+    String from = extras.getString(EXTRA_FROM);
+    String messageId = extras.getString(EXTRA_MESSAGE_ID_KEY);
+    if (messageId == null) {
+      messageId = extras.getString(EXTRA_MESSAGE_ID_KEY_SERVER);
+    }
+    if (from != null && messageId != null) {
+      Intent message = new Intent(this, MessageForwardingService.class);
+      message.setAction(MessageForwardingService.ACTION_REMOTE_INTENT);
+      message.putExtras(intent);
+      message.setData(intent.getData());
+      startService(message);
+    }
+    setIntent(intent);
+  }
+}
diff --git a/messaging/integration_test/src/integration_test.cc b/messaging/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..34845e477b
--- /dev/null
+++ b/messaging/integration_test/src/integration_test.cc
@@ -0,0 +1,594 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/messaging.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+// Your Firebase project's Server Key for Cloud Messaging goes here.
+// You can get this from Firebase Console, in your Project settings under Cloud
+// Messaging.
+const char kFcmServerKey[] =
+    "REPLACE_WITH_YOUR_SERVER_KEY";
+
+const char kRestEndpoint[] = "https://fcm.googleapis.com/fcm/send";
+
+const char kNotificationLinkKey[] = "gcm.n.link";
+const char kTestLink[] = "https://this-is-a-test-link/";
+
+// Give each operation approximately 60 seconds before failing.
+const int kTimeoutSeconds = 60;
+const char kTestingNotificationKey[] = "fcm_testing_notification";
+
+using app_framework::LogDebug;
+using app_framework::LogInfo;
+
+using app_framework::GetCurrentTimeInMicroseconds;
+using app_framework::PathForResource;
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+
+class FirebaseMessagingTest : public FirebaseTest {
+ public:
+  FirebaseMessagingTest();
+  ~FirebaseMessagingTest() override;
+
+  static void SetUpTestSuite();
+  static void TearDownTestSuite();
+
+  void SetUp() override;
+  void TearDown() override;
+
+  // Create a request and heads for a test message (returning false if unable to
+  // do so). send_to can be a FCM token or a topic subscription.
+  bool CreateTestMessage(
+      const char* send_to, const char* notification_title,
+      const char* notification_body,
+      const std::map<std::string, std::string>& message_fields,
+      std::string* request_out,
+      std::map<std::string, std::string>* headers_out);
+  // Send a message previously created by CreateTestMessage.
+  void SendTestMessage(const std::string& request,
+                       const std::map<std::string, std::string>& headers);
+  // Convenience method combining the above.
+  void SendTestMessage(
+      const char* send_to, const char* notification_title,
+      const char* notification_body,
+      const std::map<std::string, std::string>& message_fields);
+
+ protected:
+  // Get a unique message ID so we can confirm the correct message is being
+  // received.
+  std::string GetUniqueMessageId();
+
+  // Wait to receive a token. Returns true if a token was received, and places
+  // it in token_.
+  static bool WaitForToken(int timeout = kTimeoutSeconds);
+  // Request messaging permissions from the user. Returns true if permission was
+  // granted.
+  bool RequestPermission();
+  // Wait to receive a message. Returns true if a message was received and
+  // returns it in the message_out parameter.
+  bool WaitForMessage(firebase::messaging::Message* message_out,
+                      int timeout = kTimeoutSeconds);
+
+  static firebase::App* shared_app_;
+  static firebase::messaging::PollableListener* shared_listener_;
+  static std::string* shared_token_;
+  static bool is_desktop_stub_;
+};
+
+const char kObtainedPermissionKey[] = "messaging_got_permission";
+
+std::string* FirebaseMessagingTest::shared_token_ = nullptr;
+firebase::App* FirebaseMessagingTest::shared_app_ = nullptr;
+firebase::messaging::PollableListener* FirebaseMessagingTest::shared_listener_ =
+    nullptr;
+bool FirebaseMessagingTest::is_desktop_stub_;
+
+void FirebaseMessagingTest::SetUpTestSuite() {
+  LogDebug("Initialize Firebase App.");
+
+#if defined(__ANDROID__)
+  shared_app_ = ::firebase::App::Create(app_framework::GetJniEnv(),
+                                        app_framework::GetActivity());
+#else
+  shared_app_ = ::firebase::App::Create();
+#endif  // defined(__ANDROID__)
+
+  LogDebug("Initializing Firebase Cloud Messaging.");
+  shared_token_ = new std::string();
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(
+      shared_app_, &shared_listener_, [](::firebase::App* app, void* userdata) {
+        LogDebug("Try to initialize Firebase Messaging");
+        firebase::messaging::PollableListener** listener =
+            reinterpret_cast<firebase::messaging::PollableListener**>(userdata);
+        *listener = new firebase::messaging::PollableListener();
+        firebase::messaging::MessagingOptions options;
+        // Prevent the app from requesting permission to show notifications
+        // immediately upon starting up for the first time. Since it the prompt
+        // is being suppressed, we must manually display it with a call to
+        // RequestPermission() elsewhere.
+        //
+        // After the first time we've done this, we no longer will suppress the
+        // permission prompt just for ease of initialization.
+        std::string value;
+        if (!GetPersistentString(kObtainedPermissionKey, &value) ||
+            value.empty()) {
+          // The first time, suppress the notification prompt so that
+          // RequestPermission will be called.
+          options.suppress_notification_permission_prompt = true;
+        }
+
+        return ::firebase::messaging::Initialize(*app, *listener, options);
+      });
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Cloud Messaging.");
+  is_desktop_stub_ = false;
+#if !defined(ANDROID) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  is_desktop_stub_ = true;
+#endif  // !defined(ANDROID) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+}
+
+void FirebaseMessagingTest::TearDownTestSuite() {
+  LogDebug("All tests finished, cleaning up.");
+  firebase::messaging::SetListener(nullptr);
+  delete shared_listener_;
+  shared_listener_ = nullptr;
+  delete shared_token_;
+  shared_token_ = nullptr;
+
+  LogDebug("Shutdown Firebase Cloud Messaging.");
+  firebase::messaging::Terminate();
+  LogDebug("Shutdown Firebase App.");
+  delete shared_app_;
+  shared_app_ = nullptr;
+}
+
+FirebaseMessagingTest::FirebaseMessagingTest() {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseMessagingTest::~FirebaseMessagingTest() {}
+
+void FirebaseMessagingTest::SetUp() { FirebaseTest::SetUp(); }
+
+void FirebaseMessagingTest::TearDown() { FirebaseTest::TearDown(); }
+
+std::string FirebaseMessagingTest::GetUniqueMessageId() {
+  int64_t time_in_microseconds = GetCurrentTimeInMicroseconds();
+  char buffer[21] = {0};
+  snprintf(buffer, sizeof(buffer), "%lld",
+           static_cast<long long>(time_in_microseconds));  // NOLINT
+  return std::string(buffer);
+}
+
+// send_to can be a FCM token or a topic subscription.
+bool FirebaseMessagingTest::CreateTestMessage(
+    const char* send_to, const char* notification_title,
+    const char* notification_body,
+    const std::map<std::string, std::string>& message_fields,
+    std::string* request_out, std::map<std::string, std::string>* headers_out) {
+  if (is_desktop_stub_) {
+    // Don't send HTTP requests in stub mode.
+    return false;
+  }
+  std::map<std::string, std::string> headers;
+  headers.insert(std::make_pair("Content-type", "application/json"));
+  headers.insert(
+      std::make_pair("Authorization", std::string("key=") + kFcmServerKey));
+  std::string request;  // Build a JSON request.
+  request += "{\"notification\":{\"title\":\"";
+  request += notification_title ? notification_title : "";
+  request += "\",\"body\":\"";
+  request += notification_body ? notification_body : "";
+  request += "\"},\"data\":{";
+  for (auto i = message_fields.begin(); i != message_fields.end(); ++i) {
+    if (i != message_fields.begin()) request += ",";
+    request += "\"";
+    request += i->first;
+    request += "\":\"";
+    request += i->second;
+    request += "\"";
+  }
+  request += "}, \"to\":\"";
+  request += send_to;
+  // Messages will expire after 5 minutes, so if there are stale/leftover
+  // messages from a previous run, just wait 5 minutes and try again.
+  request += "\", \"time_to_live\":300}";
+  *request_out = request;
+  *headers_out = headers;
+  return true;
+}
+
+void FirebaseMessagingTest::SendTestMessage(
+    const char* send_to, const char* notification_title,
+    const char* notification_body,
+    const std::map<std::string, std::string>& message_fields) {
+  std::string request;
+  std::map<std::string, std::string> headers;
+  EXPECT_TRUE(CreateTestMessage(send_to, notification_title, notification_body,
+                                message_fields, &request, &headers));
+  SendTestMessage(request, headers);
+}
+
+void FirebaseMessagingTest::SendTestMessage(
+    const std::string& request,
+    const std::map<std::string, std::string>& headers) {
+  LogDebug("Request: %s", request.c_str());
+  LogDebug("Triggering FCM message from server...");
+  EXPECT_TRUE(
+      SendHttpPostRequest(kRestEndpoint, headers, request, nullptr, nullptr));
+}
+
+bool FirebaseMessagingTest::WaitForToken(int timeout) {
+  if (!shared_token_->empty()) return true;
+
+  if (is_desktop_stub_) {
+    // On desktop, just set a stub token.
+    *shared_token_ = "FcmDesktopStubToken";
+    return true;
+  }
+
+  std::string new_token;
+  // No new or old token immediately, so wait for a new token.
+  int seconds = 0;
+  while (seconds <= timeout) {
+    if (shared_listener_->PollRegistrationToken(&new_token)) {
+      if (!new_token.empty()) {
+        *shared_token_ = new_token;
+        LogInfo("Got token: %s", shared_token_->c_str());
+        return true;
+      }
+    }
+    seconds++;
+    ProcessEvents(1000);
+  }
+  // Failed to get a token.
+  *shared_token_ = "";
+  return false;
+}
+
+bool FirebaseMessagingTest::WaitForMessage(
+    firebase::messaging::Message* message_out, int timeout) {
+  int seconds = 0;
+  while (seconds <= timeout) {
+    if (shared_listener_->PollMessage(message_out)) {
+      LogDebug("Received a message.");
+      return true;
+    }
+    seconds++;
+    ProcessEvents(1000);
+  }
+  LogDebug("Did not receive a message.");
+  *message_out = firebase::messaging::Message();
+  return false;
+}
+
+bool FirebaseMessagingTest::RequestPermission() {
+  std::string value;
+  if (GetPersistentString(kObtainedPermissionKey, &value) && value == "1") {
+    return true;  // Already got permission.
+  }
+
+  bool b = WaitForCompletion(firebase::messaging::RequestPermission(),
+                             "RequestPermission");
+  if (b) {
+#if TARGET_OS_IPHONE
+    // We only need to pause for permission on iOS.
+    LogDebug("Pausing so user can grant permission (if needed).");
+    ProcessEvents(10000);
+#endif  // TARGET_OS_IPHONE
+    SetPersistentString(kObtainedPermissionKey, "1");
+  }
+  return b;
+}
+
+// Test cases below.
+
+TEST_F(FirebaseMessagingTest, TestRequestPermission) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+
+  // This test may request a permission from the user; if so, the user must
+  // respond affirmatively.
+  EXPECT_TRUE(RequestPermission());
+}
+
+TEST_F(FirebaseMessagingTest, TestReceiveToken) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+  EXPECT_NE(*shared_token_, "");
+}
+
+TEST_F(FirebaseMessagingTest, TestSubscribeAndUnsubscribe) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+  EXPECT_TRUE(WaitForCompletion(firebase::messaging::Subscribe("SubscribeTest"),
+                                "Subscribe"));
+  EXPECT_TRUE(WaitForCompletion(
+      firebase::messaging::Unsubscribe("SubscribeTest"), "Unsubscribe"));
+}
+
+static std::string ConstructHtmlToSendMessage(
+    const std::string& request,
+    const std::map<std::string, std::string>& headers, int delay_seconds) {
+  // Generate some simple HTML/Javascript to pause a few seconds, then send the
+  // POST request via XMLHttpRequest.
+  std::string h;
+  h += "<script>window.onload = function(e){"
+       "document.write('<h1>FCM Integration Test</h1>');"
+       "document.write('<h2>Pausing a moment...</h2>');"
+       "setTimeout(function(e2){"
+       "document.write('<h2>Sending message request...</h2>');"
+       "let xhttp = new XMLHttpRequest();"
+       "xhttp.open('POST','";
+  h += kRestEndpoint;
+  h += "',false);";
+  for (auto i = headers.begin(); i != headers.end(); ++i) {
+    h += "xhttp.setRequestHeader('" + i->first + "','" + i->second + "');";
+  }
+  h += "xhttp.send('" + request + "', false);";
+  h += "if(xhttp.status==200){"
+#if defined(__ANDROID__)
+       "document.write('<h2>Notification sent.<br>Open system tray and tap "
+       "notification to return to tests.</h2>');"
+#else
+       "document.write('<h2>Notification sent.<br>Tap notification to return "
+       "to tests.</h2>');"
+#endif  // defined(__ANDROID__)
+       "}else{"
+       "document.write('<h1>Failed to send notification.</h1>');"
+       "document.write('Status '+xhttp.status+': '+xhttp.response);"
+       "}},";
+  h += std::to_string(delay_seconds * 1000) + ");}</script>";
+  return h;
+}
+
+TEST_F(FirebaseMessagingTest, TestNotification) {
+  TEST_REQUIRES_USER_INTERACTION;
+  SKIP_TEST_ON_DESKTOP;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+
+  // To test notifications, this test app must be running in the background. To
+  // accomplish this, switch over to the device's web browser, loading an HTML
+  // page that will, after a short delay, send the FCM message request to the
+  // app in the background. This will produce the system notification that you
+  // can then click on to go back into the app and continue the test.
+
+  std::string unique_id = GetUniqueMessageId();
+  std::string token = *shared_token_;
+  const char kNotificationTitle[] = "FCM Integration Test";
+  const char kNotificationBody[] = "Test notification, open to resume testing.";
+  std::string value;
+  if (!GetPersistentString(kTestingNotificationKey, &value) || value.empty()) {
+    // If the notification test is already in progress, just go straight to the
+    // waiting part. This can happen if you wait too long to click on the
+    // notification and the app is no longer running in the background.
+    std::string request;
+    std::map<std::string, std::string> headers;
+    std::map<std::string, std::string> message_fields = {
+      {"message", "This is a notification."},
+      {"unique_id", unique_id},
+#if defined(__ANDROID__)
+      // Duplicate notification.title and notification.body here, see
+      // below for why.
+      {"notification_title", kNotificationTitle},
+      {"notification_body", kNotificationBody},
+#endif  // defined(__ANDROID__)
+    };
+    EXPECT_TRUE(CreateTestMessage(shared_token_->c_str(), kNotificationTitle,
+                                  kNotificationBody, message_fields, &request,
+                                  &headers));
+    std::string html = ConstructHtmlToSendMessage(request, headers, 5);
+    // We now have some HTML/Javascript to send the message request. Embed it in
+    // a data: url so we can try receiving a message with the app in the
+    // background.
+    // Encode the HTML into base64.
+    std::string html_encoded;
+    EXPECT_TRUE(Base64Encode(html, &html_encoded));
+    std::string url = std::string("data:text/html;base64,") + html_encoded;
+    LogInfo("Opening browser to trigger FCM message.");
+    if (OpenUrlInBrowser(url.c_str())) {
+      SetPersistentString(kTestingNotificationKey, "1");
+    } else {
+      FAIL() << "Failed to open URL in browser.";
+    }
+  }
+  SetPersistentString(kTestingNotificationKey, nullptr);
+  LogDebug("Waiting for message.");
+  firebase::messaging::Message message;
+  EXPECT_TRUE(WaitForMessage(&message, 120));
+  EXPECT_EQ(message.data["unique_id"], unique_id);
+  EXPECT_TRUE(message.notification_opened);
+
+#if defined(__ANDROID__)
+  // On Android, if the app is running in the background, FCM does not deliver
+  // both the "notification" and the "data". So for our purposes, duplicate the
+  // notification fields we are checking into the data fields so we can still
+  // check that it's correct.
+  EXPECT_EQ(message.notification, nullptr);
+  EXPECT_EQ(message.data["notification_title"], kNotificationTitle);
+  EXPECT_EQ(message.data["notification_body"], kNotificationBody);
+#else
+  // On iOS, we do get the notification.
+  EXPECT_NE(message.notification, nullptr);
+  if (message.notification) {
+    EXPECT_EQ(message.notification->title, kNotificationTitle);
+    EXPECT_EQ(message.notification->body, kNotificationBody);
+  }
+#endif  // defined(__ANDROID__)
+}
+
+TEST_F(FirebaseMessagingTest, TestSendMessageToToken) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+  SKIP_TEST_ON_DESKTOP;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+  std::string unique_id = GetUniqueMessageId();
+  const char kNotificationTitle[] = "Token Test";
+  const char kNotificationBody[] = "Token Test notification body";
+  SendTestMessage(shared_token_->c_str(), kNotificationTitle, kNotificationBody,
+                  {{"message", "Hello, world!"},
+                   {"unique_id", unique_id},
+                   {kNotificationLinkKey, kTestLink}});
+  LogDebug("Waiting for message.");
+  firebase::messaging::Message message;
+  EXPECT_TRUE(WaitForMessage(&message));
+  EXPECT_EQ(message.data["unique_id"], unique_id);
+  EXPECT_NE(message.notification, nullptr);
+  if (message.notification) {
+    EXPECT_EQ(message.notification->title, kNotificationTitle);
+    EXPECT_EQ(message.notification->body, kNotificationBody);
+  }
+  EXPECT_EQ(message.link, kTestLink);
+}
+
+TEST_F(FirebaseMessagingTest, TestSendMessageToTopic) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+  SKIP_TEST_ON_DESKTOP;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+  std::string unique_id = GetUniqueMessageId();
+  const char kNotificationTitle[] = "Topic Test";
+  const char kNotificationBody[] = "Topic Test notification body";
+  // Create a somewhat unique topic name using 2 digits near the end of
+  // unique_id (but not the LAST 2 digits, due to timestamp resolution on some
+  // platforms).
+  std::string unique_id_tag =
+      (unique_id.length() >= 7 ? unique_id.substr(unique_id.length() - 5, 2)
+                               : "00");
+  std::string topic = "FCMTestTopic" + unique_id_tag;
+  EXPECT_TRUE(WaitForCompletion(firebase::messaging::Subscribe(topic.c_str()),
+                                "Subscribe"));
+  SendTestMessage(("/topics/" + topic).c_str(), kNotificationTitle,
+                  kNotificationBody,
+                  {{"message", "Hello, world!"}, {"unique_id", unique_id}});
+  firebase::messaging::Message message;
+  EXPECT_TRUE(WaitForMessage(&message));
+  EXPECT_EQ(message.data["unique_id"], unique_id);
+  if (message.notification) {
+    EXPECT_EQ(message.notification->title, kNotificationTitle);
+    EXPECT_EQ(message.notification->body, kNotificationBody);
+  }
+
+  EXPECT_TRUE(WaitForCompletion(firebase::messaging::Unsubscribe(topic.c_str()),
+                                "Unsubscribe"));
+
+  // Ensure that we *don't* receive a message now.
+  unique_id = GetUniqueMessageId();
+  SendTestMessage(("/topics/" + topic).c_str(), "Topic Title 2", "Topic Body 2",
+                  {{"message", "Hello, world!"}, {"unique_id", unique_id}});
+  EXPECT_FALSE(WaitForMessage(&message, 5));
+}
+
+TEST_F(FirebaseMessagingTest, TestChangingListener) {
+  TEST_REQUIRES_USER_INTERACTION_ON_IOS;
+  SKIP_TEST_ON_DESKTOP;
+
+  EXPECT_TRUE(RequestPermission());
+  EXPECT_TRUE(WaitForToken());
+
+  // Back up the previous listener object and create a new one.
+  firebase::messaging::PollableListener* old_listener_ = shared_listener_;
+  // WaitForMessage() uses whatever shared_listener_ is set to.
+  shared_listener_ = new firebase::messaging::PollableListener();
+  firebase::messaging::SetListener(shared_listener_);
+
+  std::string unique_id = GetUniqueMessageId();
+  const char kNotificationTitle[] = "New Listener Test";
+  const char kNotificationBody[] = "New Listener Test notification body";
+  SendTestMessage(shared_token_->c_str(), kNotificationTitle, kNotificationBody,
+                  {{"message", "Hello, world!"}, {"unique_id", unique_id}});
+  LogDebug("Waiting for message.");
+  firebase::messaging::Message message;
+  EXPECT_TRUE(WaitForMessage(&message));
+  EXPECT_EQ(message.data["unique_id"], unique_id);
+  if (message.notification) {
+    EXPECT_EQ(message.notification->title, kNotificationTitle);
+    EXPECT_EQ(message.notification->body, kNotificationBody);
+  }
+
+  // Set back to the previous listener.
+  firebase::messaging::SetListener(old_listener_);
+  delete shared_listener_;
+  shared_listener_ = old_listener_;
+}
+
+TEST_F(FirebaseMessagingTest, DeliverMetricsToBigQuery) {
+  // These setters and getters are not implemented on all platforms, so we run
+  // them here to make sure they don't crash, and then validate the values
+  // received below only on the platforms they are implemented on.
+
+  bool initial_value =
+      firebase::messaging::DeliveryMetricsExportToBigQueryEnabled();
+  // This one should always default to false unless it has been set.
+  EXPECT_FALSE(initial_value);
+
+  firebase::messaging::SetDeliveryMetricsExportToBigQuery(true);
+  bool result_after_setting =
+      firebase::messaging::DeliveryMetricsExportToBigQueryEnabled();
+
+  firebase::messaging::SetDeliveryMetricsExportToBigQuery(false);
+  bool result_after_clearing =
+      firebase::messaging::DeliveryMetricsExportToBigQueryEnabled();
+
+#if defined(ANDROID)
+  EXPECT_TRUE(result_after_setting);
+  EXPECT_FALSE(result_after_clearing);
+#else
+  (void)result_after_setting;
+  (void)result_after_clearing;
+#endif
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/remote_config/integration_test/AndroidManifest.xml b/remote_config/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..1ce2e9b6e8
--- /dev/null
+++ b/remote_config/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.android.remoteconfig.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+    </activity>
+    <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/remote_config/integration_test/CMakeLists.txt b/remote_config/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..25429e8036
--- /dev/null
+++ b/remote_config/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+  # Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_remote_config firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/remote_config/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/remote_config/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/remote_config/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/remote_config/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/remote_config/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/remote_config/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/remote_config/integration_test/Info.plist b/remote_config/integration_test/Info.plist
new file mode 100644
index 0000000000..e8bfc83986
--- /dev/null
+++ b/remote_config/integration_test/Info.plist
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.ios.remoteconfig.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/remote_config/integration_test/LaunchScreen.storyboard b/remote_config/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/remote_config/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/remote_config/integration_test/LibraryManifest.xml b/remote_config/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..0f9554e694
--- /dev/null
+++ b/remote_config/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.android.remoteconfig.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/remote_config/integration_test/Podfile b/remote_config/integration_test/Podfile
new file mode 100644
index 0000000000..d3fff75f74
--- /dev/null
+++ b/remote_config/integration_test/Podfile
@@ -0,0 +1,15 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Firebase Remote Config test application.
+
+target 'integration_test' do
+  pod 'Firebase/RemoteConfig', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/remote_config/integration_test/build.gradle b/remote_config/integration_test/build.gradle
new file mode 100644
index 0000000000..97d20a5449
--- /dev/null
+++ b/remote_config/integration_test/build.gradle
@@ -0,0 +1,76 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.android.remoteconfig.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  remoteConfig
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/remote_config/integration_test/googletest.cmake b/remote_config/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/remote_config/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/remote_config/integration_test/gradle/wrapper/gradle-wrapper.jar b/remote_config/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/remote_config/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/remote_config/integration_test/gradle/wrapper/gradle-wrapper.properties b/remote_config/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/remote_config/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/remote_config/integration_test/gradlew b/remote_config/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/remote_config/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/remote_config/integration_test/gradlew.bat b/remote_config/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/remote_config/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj b/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
+				D6C179ED22CB323300C2651A /* app_framework.h */,
+				D6C179EC22CB323300C2651A /* firebase_test_framework.cc */,
+				D6C179EB22CB323300C2651A /* firebase_test_framework.h */,
+				D61C5F9222BABAD100A79141 /* integration_test.cc */,
+				5292271E1C85FB5B00C89379 /* ios */,
+			);
+			name = src;
+			sourceTree = "<group>";
+		};
+		5292271E1C85FB5B00C89379 /* ios */ = {
+			isa = PBXGroup;
+			children = (
+				D6C179E722CB322900C2651A /* ios_app_framework.mm */,
+				D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */,
+			);
+			name = ios;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		529226D11C85F68000C89379 /* integration_test */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */;
+			buildPhases = (
+				529226CE1C85F68000C89379 /* Sources */,
+				529226CF1C85F68000C89379 /* Frameworks */,
+				529226D01C85F68000C89379 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = integration_test;
+			productName = testapp;
+			productReference = 529226D21C85F68000C89379 /* integration_test.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		529226CA1C85F68000C89379 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0640;
+				ORGANIZATIONNAME = Google;
+				TargetAttributes = {
+					529226D11C85F68000C89379 = {
+						CreatedOnToolsVersion = 6.4;
+						DevelopmentTeam = EQHXZ8M8AV;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 529226C91C85F68000C89379;
+			productRefGroup = 529226D31C85F68000C89379 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				529226D11C85F68000C89379 /* integration_test */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		529226D01C85F68000C89379 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */,
+				D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */,
+				520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		529226CE1C85F68000C89379 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D67D355822BABD2200292C1D /* gtest-all.cc in Sources */,
+				D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */,
+				D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */,
+				D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */,
+				D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */,
+				D6C179F022CB32A000C2651A /* app_framework.cc in Sources */,
+				D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		529226F71C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		529226F81C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.4;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		529226FA1C85F68000C89379 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Debug;
+		};
+		529226FB1C85F68000C89379 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"\"$(SRCROOT)/src\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock/include\"",
+					"\"$(SRCROOT)/external/googletest/src/googletest\"",
+					"\"$(SRCROOT)/external/googletest/src/googlemock\"",
+				);
+				INFOPLIST_FILE = "$(SRCROOT)/Info.plist";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				WRAPPER_EXTENSION = app;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		529226CD1C85F68000C89379 /* Build configuration list for PBXProject "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226F71C85F68000C89379 /* Debug */,
+				529226F81C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		529226F91C85F68000C89379 /* Build configuration list for PBXNativeTarget "integration_test" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				529226FA1C85F68000C89379 /* Debug */,
+				529226FB1C85F68000C89379 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 529226CA1C85F68000C89379 /* Project object */;
+}
diff --git a/remote_config/integration_test/proguard.pro b/remote_config/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/remote_config/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/remote_config/integration_test/res/layout/main.xml b/remote_config/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/remote_config/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/remote_config/integration_test/res/values/strings.xml b/remote_config/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..fd7b9680c8
--- /dev/null
+++ b/remote_config/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Firebase Remote Config Integration Test</string>
+</resources>
diff --git a/remote_config/integration_test/settings.gradle b/remote_config/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/remote_config/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/remote_config/integration_test/src/integration_test.cc b/remote_config/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..aff4a866d2
--- /dev/null
+++ b/remote_config/integration_test/src/integration_test.cc
@@ -0,0 +1,430 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/remote_config.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+using app_framework::LogWarning;
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+using firebase::Future;
+using firebase::remote_config::RemoteConfig;
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+
+using testing::UnorderedElementsAre;
+
+class FirebaseRemoteConfigTest : public FirebaseTest {
+ public:
+  FirebaseRemoteConfigTest();
+  ~FirebaseRemoteConfigTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App and Firebase Remote Config.
+  void Initialize();
+  // Shut down Firebase Remote Config and Firebase App.
+  void Terminate();
+
+  bool initialized_;
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+  RemoteConfig* rc_;
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+};
+
+FirebaseRemoteConfigTest::FirebaseRemoteConfigTest() : initialized_(false) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseRemoteConfigTest::~FirebaseRemoteConfigTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+  assert(rc_ == nullptr);
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+}
+
+void FirebaseRemoteConfigTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseRemoteConfigTest::TearDown() {
+  // Delete the shared path, if there is one.
+  if (initialized_) {
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseRemoteConfigTest::Initialize() {
+  if (initialized_) return;
+  SetLogLevel(app_framework::kDebug);
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Remote Config.");
+
+  ::firebase::ModuleInitializer initializer;
+
+  void* ptr = nullptr;
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+  ptr = &rc_;
+#endif
+  initializer.Initialize(app_, ptr, [](::firebase::App* app, void* target) {
+    LogDebug("Try to initialize Firebase RemoteConfig");
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+    RemoteConfig** rc_ptr = reinterpret_cast<RemoteConfig**>(target);
+    *rc_ptr = RemoteConfig::GetInstance(app);
+#endif
+    return firebase::remote_config::Initialize(*app);
+  });
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase RemoteConfig.");
+
+  initialized_ = true;
+}
+
+void FirebaseRemoteConfigTest::Terminate() {
+  if (!initialized_) return;
+
+  LogDebug("Shutdown the Remote Config library.");
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+  if (rc_) {
+    delete rc_;
+    rc_ = nullptr;
+  }
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+  LogDebug("DTerminating.");
+  firebase::remote_config::Terminate();
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+static const char* ValueSourceToString(
+    firebase::remote_config::ValueSource source) {
+  static const char* kSourceToString[] = {
+      "Static",   // kValueSourceStaticValue
+      "Remote",   // kValueSourceRemoteValue
+      "Default",  // kValueSourceDefaultValue
+  };
+  return kSourceToString[source];
+}
+
+static const unsigned char kBinaryDefaults[] = {6, 0, 0, 6, 7, 3};
+// NOLINTNEXTLINE
+static const firebase::remote_config::ConfigKeyValueVariant defaults[] = {
+    {"TestBoolean", false},
+    {"TestLong", 42},
+    {"TestDouble", 3.14},
+    {"TestString", "Hello World"},
+    {"TestData", firebase::Variant::FromStaticBlob(kBinaryDefaults,
+                                                   sizeof(kBinaryDefaults))},
+    {"TestDefaultOnly", "Default value that won't be overridden"}};
+
+//   TestData     4321
+//   TestDouble   625.63
+//   TestLong     119
+//   TestBoolean  true
+//   TestString   This is a string
+// NOLINTNEXTLINE
+static const firebase::remote_config::ConfigKeyValueVariant kServerValue[] = {
+    {"TestBoolean", true},
+    {"TestLong", 119},
+    {"TestDouble", 625.63},
+    {"TestString", firebase::Variant::FromMutableString("This is a string")},
+    {"TestData", 4321},
+    {"TestDefaultOnly", firebase::Variant::FromMutableString(
+                            "Default value that won't be overridden")}};
+
+static void SetDefaults() {
+  size_t default_count = FIREBASE_ARRAYSIZE(defaults);
+  firebase::remote_config::SetDefaults(defaults, default_count);
+}
+
+#ifdef FIREBASE_EARLY_ACCESS_PREVIEW
+static Future<void> SetDefaultsV2(RemoteConfig* rc) {
+  size_t default_count = FIREBASE_ARRAYSIZE(defaults);
+  return rc->SetDefaults(defaults, default_count);
+}
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+
+// Test cases below.
+
+TEST_F(FirebaseRemoteConfigTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseRemoteConfigTest, TestSetDefaults) {
+  SetDefaults();
+
+  bool validated_defaults = true;
+  firebase::remote_config::ValueInfo value_info;
+  bool bool_value =
+      firebase::remote_config::GetBoolean("TestBoolean", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_FALSE(bool_value);
+  } else {
+    validated_defaults = false;
+  }
+  int64_t int64_value =
+      firebase::remote_config::GetLong("TestLong", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_EQ(int64_value, 42);
+  } else {
+    validated_defaults = false;
+  }
+  double double_value =
+      firebase::remote_config::GetDouble("TestDouble", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_NEAR(double_value, 3.14, 0.0001);
+  } else {
+    validated_defaults = false;
+  }
+  std::string string_value =
+      firebase::remote_config::GetString("TestString", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_EQ(string_value, "Hello World");
+  } else {
+    validated_defaults = false;
+  }
+  std::vector<unsigned char> blob_value =
+      firebase::remote_config::GetData("TestData");  //, &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_THAT(blob_value, testing::ElementsAreArray(kBinaryDefaults,
+                                                      sizeof(kBinaryDefaults)));
+  } else {
+    validated_defaults = false;
+  }
+
+  if (!validated_defaults) {
+    LogWarning(
+        "Can't validate defaults, they've been overridden by server values.\n"
+#if defined(__ANDROID__)
+        "Delete the app's data and run this test again to test SetDefaults:\n"
+        " adb shell pm clear [bundle ID]"
+#elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+        "Uninstall and re-install the app and run this again to test "
+        "SetDefaults."
+#else  // Desktop
+        "Delete the Remote Config cache and run this test again to test "
+        "SetDefaults:\n"
+#if defined(_WIN32)
+        " del remote_config_data"
+#else
+        " rm remote_config_data"
+#endif  // defined(_WIN32)
+#endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+    );
+  }
+}
+
+/* The following test expects that you have your server values set to:
+   TestData     4321
+   TestDouble   625.63
+   TestLong     119
+   TestBoolean  true
+   TestString   This is a string
+ */
+
+TEST_F(FirebaseRemoteConfigTest, TestFetchAndActivate) {
+  SetDefaults();
+
+  WaitForCompletion(firebase::remote_config::Fetch(0), "Fetch");
+  EXPECT_TRUE(firebase::remote_config::ActivateFetched());
+  const firebase::remote_config::ConfigInfo& info =
+      firebase::remote_config::GetInfo();
+  LogDebug("Fetch time: %lld", info.fetch_time);
+  firebase::remote_config::ValueInfo value_info;
+  bool bool_value =
+      firebase::remote_config::GetBoolean("TestBoolean", &value_info);
+  EXPECT_EQ(value_info.source, firebase::remote_config::kValueSourceRemoteValue)
+      << "TestBoolean source is " << ValueSourceToString(value_info.source)
+      << ", expected Remote";
+  EXPECT_TRUE(bool_value);
+
+  int64_t int64_value =
+      firebase::remote_config::GetLong("TestLong", &value_info);
+  EXPECT_EQ(value_info.source, firebase::remote_config::kValueSourceRemoteValue)
+      << "TestLong source is " << ValueSourceToString(value_info.source)
+      << ", expected Remote";
+  EXPECT_EQ(int64_value, 119);
+
+  double double_value =
+      firebase::remote_config::GetDouble("TestDouble", &value_info);
+  EXPECT_EQ(value_info.source, firebase::remote_config::kValueSourceRemoteValue)
+      << "TestDouble source is " << ValueSourceToString(value_info.source)
+      << ", expected Remote";
+  EXPECT_NEAR(double_value, 625.63, 0.0001);
+
+  std::string string_value =
+      firebase::remote_config::GetString("TestString", &value_info);
+  EXPECT_EQ(value_info.source, firebase::remote_config::kValueSourceRemoteValue)
+      << "TestString source is " << ValueSourceToString(value_info.source)
+      << ", expected Remote";
+  EXPECT_EQ(string_value, "This is a string");
+
+  std::vector<unsigned char> blob_value =
+      firebase::remote_config::GetData("TestData");  //, &value_info);
+  EXPECT_EQ(value_info.source, firebase::remote_config::kValueSourceRemoteValue)
+      << "TestData source is " << ValueSourceToString(value_info.source)
+      << ", expected Remote";
+
+  const unsigned char kExpectedBlobServerValue[] = {'4', '3', '2', '1'};
+  EXPECT_THAT(blob_value,
+              testing::ElementsAreArray(kExpectedBlobServerValue,
+                                        sizeof(kExpectedBlobServerValue)));
+}
+
+TEST_F(FirebaseRemoteConfigTest, TestGetKeys) {
+  SetDefaults();
+
+  std::vector<std::string> keys = firebase::remote_config::GetKeys();
+  EXPECT_THAT(
+      keys, UnorderedElementsAre("TestBoolean", "TestLong", "TestDouble",
+                                 "TestString", "TestData", "TestDefaultOnly"));
+  std::vector<std::string> keys_subset =
+      firebase::remote_config::GetKeysByPrefix("TestD");
+  EXPECT_THAT(keys_subset, UnorderedElementsAre("TestDouble", "TestData",
+                                                "TestDefaultOnly"));
+}
+
+#if defined(FIREBASE_EARLY_ACCESS_PREVIEW) && \
+    (defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE))
+TEST_F(FirebaseRemoteConfigTest, TestSetDefaultsV2) {
+  EXPECT_TRUE(WaitForCompletion(SetDefaultsV2(rc_), "SetDefaultsV2"));
+
+  bool validated_defaults = true;
+  firebase::remote_config::ValueInfo value_info;
+  bool bool_value = rc_->GetBoolean("TestBoolean", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_FALSE(bool_value);
+  } else {
+    validated_defaults = false;
+  }
+  int64_t int64_value = rc_->GetLong("TestLong", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_EQ(int64_value, 42);
+  } else {
+    validated_defaults = false;
+  }
+  double double_value = rc_->GetDouble("TestDouble", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_NEAR(double_value, 3.14, 0.0001);
+  } else {
+    validated_defaults = false;
+  }
+  std::string string_value = rc_->GetString("TestString", &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_EQ(string_value, "Hello World");
+  } else {
+    validated_defaults = false;
+  }
+  std::vector<unsigned char> blob_value =
+      rc_->GetData("TestData");  //, &value_info);
+  if (value_info.source == firebase::remote_config::kValueSourceDefaultValue) {
+    EXPECT_THAT(blob_value, testing::ElementsAreArray(kBinaryDefaults,
+                                                      sizeof(kBinaryDefaults)));
+  } else {
+    validated_defaults = false;
+  }
+
+  if (!validated_defaults) {
+    LogWarning(
+        "Can't validate defaults, they've been overridden by server values.\n"
+#if defined(__ANDROID__)
+        "Delete the app's data and run this test again to test SetDefaults:\n"
+        " adb shell pm clear [bundle ID]"
+#elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+        "Uninstall and re-install the app and run this again to test "
+        "SetDefaults."
+#else  // Desktop
+        "Delete the Remote Config cache and run this test again to test "
+        "SetDefaults:\n"
+#if defined(_WIN32)
+        " del remote_config_data"
+#else
+        " rm remote_config_data"
+#endif  // defined(_WIN32)
+#endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+    );
+  }
+}
+
+TEST_F(FirebaseRemoteConfigTest, TestGetKeysV2) {
+  EXPECT_TRUE(WaitForCompletion(SetDefaultsV2(rc_), "SetDefaultsV2"));
+
+  std::vector<std::string> keys = rc_->GetKeys();
+  EXPECT_THAT(
+      keys, UnorderedElementsAre("TestBoolean", "TestLong", "TestDouble",
+                                 "TestString", "TestData", "TestDefaultOnly"));
+  std::vector<std::string> keys_subset =
+      firebase::remote_config::GetKeysByPrefix("TestD");
+  EXPECT_THAT(keys_subset, UnorderedElementsAre("TestDouble", "TestData",
+                                                "TestDefaultOnly"));
+}
+
+TEST_F(FirebaseRemoteConfigTest, TestGetAll) {
+  EXPECT_TRUE(WaitForCompletion(SetDefaultsV2(rc_), "SetDefaultsV2"));
+
+  std::map<std::string, firebase::Variant> key_values = rc_->GetAll();
+  EXPECT_EQ(key_values.size(), 6);
+
+  for (auto key_valur_pair : kServerValue) {
+    firebase::Variant k_value = key_valur_pair.value;
+    firebase::Variant fetched_value = key_values[key_valur_pair.key];
+    EXPECT_EQ(k_value.type(), fetched_value.type());
+    EXPECT_EQ(k_value, fetched_value);
+  }
+}
+
+#endif  //  FIREBASE_EARLY_ACCESS_PREVIEW
+
+}  // namespace firebase_testapp_automated
diff --git a/setup_integration_tests.py b/setup_integration_tests.py
new file mode 100755
index 0000000000..895c38fc69
--- /dev/null
+++ b/setup_integration_tests.py
@@ -0,0 +1,58 @@
+#!/usr/bin/python
+
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Copy files from test & sample frameworks into integration_test directories.
+
+Usage: %s [destination directories]
+"""
+
+import os
+import sys
+from distutils.dir_util import copy_tree
+
+# Where to copy framework files from, relative to this script's location.
+FRAMEWORK_DIRECTORIES = [
+    'testing/sample_framework',
+    'testing/test_framework',
+]
+
+# If running without specifying a directory, these are the destination
+# directories to use instead, relative to this script's location.
+DEFAULT_DESTINATIONS = [
+    'admob/integration_test',
+    'analytics/integration_test',
+    'app/integration_test',
+    'auth/integration_test',
+    'database/integration_test',
+    'dynamic_links/integration_test',
+    'firestore/integration_test',
+    'functions/integration_test',
+    'instance_id/integration_test',
+    'messaging/integration_test',
+    'remote_config/integration_test',
+    'storage/integration_test',
+]
+
+destinations = sys.argv[1:] if len(sys.argv) > 1 else DEFAULT_DESTINATIONS
+destinations = map(os.path.abspath, destinations)
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+
+for dest in destinations:
+    if not os.path.exists(dest):
+        print('Error, destination path "%s" does not exist' % dest) 
+        continue
+    for src in FRAMEWORK_DIRECTORIES:
+        print('Copying %s to %s' % (src, dest))
+        copy_tree(src, dest, update=1)
diff --git a/storage/integration_test/AndroidManifest.xml b/storage/integration_test/AndroidManifest.xml
new file mode 100644
index 0000000000..2f834feea2
--- /dev/null
+++ b/storage/integration_test/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.google.firebase.cpp.storage.testapp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28" />
+  <application android:label="@string/app_name">
+    <activity android:name="android.app.NativeActivity"
+              android:screenOrientation="portrait"
+              android:configChanges="orientation|screenSize">
+      <meta-data android:name="android.app.lib_name"
+                 android:value="android_integration_test_main" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+      <intent-filter>
+       <action android:name="com.google.intent.action.TEST_LOOP"/>
+         <category android:name="android.intent.category.DEFAULT"/>
+         <data android:mimeType="application/javascript"/>
+      </intent-filter>
+      </activity>
+      <meta-data android:name="com.google.test.loops" android:value="1" />
+  </application>
+</manifest>
diff --git a/storage/integration_test/CMakeLists.txt b/storage/integration_test/CMakeLists.txt
new file mode 100644
index 0000000000..8aef4ebf70
--- /dev/null
+++ b/storage/integration_test/CMakeLists.txt
@@ -0,0 +1,224 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Cmake file for a single C++ integration test build.
+
+cmake_minimum_required(VERSION 2.8)
+
+# User settings for Firebase integration tests.
+# Path to Firebase SDK.
+# Try to read the path to the Firebase C++ SDK from an environment variable.
+if (NOT "$ENV{FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(DEFAULT_FIREBASE_CPP_SDK_DIR "$ENV{FIREBASE_CPP_SDK_DIR}")
+else()
+  if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../cpp_sdk_version.json")
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "${CMAKE_CURRENT_LIST_DIR}/../..")
+  else()
+    set(DEFAULT_FIREBASE_CPP_SDK_DIR "firebase_cpp_sdk")
+  endif()
+endif()
+if ("${FIREBASE_CPP_SDK_DIR}" STREQUAL "")
+  set(FIREBASE_CPP_SDK_DIR ${DEFAULT_FIREBASE_CPP_SDK_DIR})
+endif()
+if(NOT EXISTS ${FIREBASE_CPP_SDK_DIR})
+  message(FATAL_ERROR "The Firebase C++ SDK directory does not exist: ${FIREBASE_CPP_SDK_DIR}. See the readme.md for more information")
+endif()
+
+# Copy all prerequisite files for integration tests to run.
+if(NOT ANDROID)
+  if (EXISTS ${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py)
+    # If this is running from inside the SDK directory, run the setup script.
+    execute_process(COMMAND "python" "${CMAKE_CURRENT_LIST_DIR}/../../setup_integration_tests.py" "${CMAKE_CURRENT_LIST_DIR}")
+  endif()
+endif()
+
+# Windows runtime mode, either MD or MT depending on whether you are using
+# /MD or /MT. For more information see:
+# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+set(MSVC_RUNTIME_MODE MD)
+
+project(firebase_testapp)
+
+# Integration test source files.
+set(FIREBASE_APP_FRAMEWORK_SRCS
+  src/app_framework.cc
+  src/app_framework.h
+)
+
+set(FIREBASE_TEST_FRAMEWORK_SRCS
+  src/firebase_test_framework.h
+  src/firebase_test_framework.cc
+)
+
+set(FIREBASE_INTEGRATION_TEST_SRCS
+  src/integration_test.cc
+)
+
+# The include directory for the testapp.
+include_directories(src)
+
+# Integration test uses some features that require C++ 11, such as lambdas.
+set (CMAKE_CXX_STANDARD 11)
+
+# Download and unpack googletest (and googlemock) at configure time
+set(GOOGLETEST_ROOT ${CMAKE_CURRENT_LIST_DIR}/external/googletest)
+# Note: Once googletest is downloaded once, it won't be updated or
+# downloaded again unless you delete the "external/googletest"
+# directory.
+if (NOT EXISTS ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  configure_file(googletest.cmake
+    ${CMAKE_CURRENT_LIST_DIR}/external/googletest/CMakeLists.txt COPYONLY)
+  execute_process(COMMAND ${CMAKE_COMMAND} .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} --build .
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/external/googletest )
+  if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+  endif()
+endif()
+
+if(ANDROID)
+  # Build an Android application.
+
+  # Source files used for the Android build.
+  set(FIREBASE_APP_FRAMEWORK_ANDROID_SRCS
+    src/android/android_app_framework.cc
+  )
+
+  # Source files used for the Android build.
+  set(FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS
+    src/android/android_firebase_test_framework.cc
+  )
+
+# Build native_app_glue as a static lib
+  add_library(native_app_glue STATIC
+    ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
+
+  # Export ANativeActivity_onCreate(),
+  # Refer to: https://github.com/android-ndk/ndk/issues/381.
+  set(CMAKE_SHARED_LINKER_FLAGS
+      "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+  add_library(gtest STATIC
+    ${GOOGLETEST_ROOT}/src/googletest/src/gtest-all.cc)
+  target_include_directories(gtest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include)
+  add_library(gmock STATIC
+    ${GOOGLETEST_ROOT}/src/googlemock/src/gmock-all.cc)
+  target_include_directories(gmock
+    PRIVATE ${GOOGLETEST_ROOT}/src/googletest
+    PRIVATE ${GOOGLETEST_ROOT}/src/googlemock
+    PUBLIC ${GOOGLETEST_ROOT}/src/googletest/include
+    PUBLIC ${GOOGLETEST_ROOT}/src/googlemock/include)
+
+  # Define the target as a shared library, as that is what gradle expects.
+  set(integration_test_target_name "android_integration_test_main")
+  add_library(${integration_test_target_name} SHARED
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_ANDROID_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_ANDROID_SRCS}
+  )
+
+  target_include_directories(${integration_test_target_name} PRIVATE
+    ${ANDROID_NDK}/sources/android/native_app_glue)
+
+  set(ADDITIONAL_LIBS log android atomic native_app_glue)
+else()
+  # Build a desktop application.
+  add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
+
+  # Prevent overriding the parent project's compiler/linker
+  # settings on Windows
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+  # Add googletest directly to our build. This defines
+  # the gtest and gtest_main targets.
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/external/googletest/src
+                   ${CMAKE_CURRENT_LIST_DIR}/external/googletest/build
+                   EXCLUDE_FROM_ALL)
+
+  # The gtest/gtest_main targets carry header search path
+  # dependencies automatically when using CMake 2.8.11 or
+  # later. Otherwise we have to add them here ourselves.
+  if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+    include_directories("${gmock_SOURCE_DIR}/include")
+  endif()
+
+  # Windows runtime mode, either MD or MT depending on whether you are using
+  # /MD or /MT. For more information see:
+  # https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
+  set(MSVC_RUNTIME_MODE MD)
+
+  # Platform abstraction layer for the desktop integration test.
+  set(FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS
+    src/desktop/desktop_app_framework.cc
+  )
+
+  set(integration_test_target_name "integration_test")
+  add_executable(${integration_test_target_name}
+    ${FIREBASE_APP_FRAMEWORK_SRCS}
+    ${FIREBASE_APP_FRAMEWORK_DESKTOP_SRCS}
+    ${FIREBASE_TEST_FRAMEWORK_SRCS}
+    ${FIREBASE_INTEGRATION_TEST_SRCS}
+  )
+
+  if(APPLE)
+    set(ADDITIONAL_LIBS
+      gssapi_krb5
+      pthread
+      "-framework CoreFoundation"
+      "-framework Foundation"
+      "-framework GSS"
+      "-framework Security"
+    )
+  elseif(MSVC)
+    set(ADDITIONAL_LIBS advapi32 ws2_32 crypt32)
+  else()
+    set(ADDITIONAL_LIBS pthread)
+  endif()
+
+  # If a config file is present, copy it into the binary location so that it's
+  # possible to create the default Firebase app.
+  set(FOUND_JSON_FILE FALSE)
+  foreach(config "google-services-desktop.json" "google-services.json")
+    if (EXISTS ${config})
+      add_custom_command(
+        TARGET ${integration_test_target_name} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+          ${config} $<TARGET_FILE_DIR:${integration_test_target_name}>)
+      set(FOUND_JSON_FILE TRUE)
+      break()
+    endif()
+  endforeach()
+  if(NOT FOUND_JSON_FILE)
+    message(WARNING "Failed to find either google-services-desktop.json or google-services.json. See the readme.md for more information.")
+  endif()
+endif()
+
+# Add the Firebase libraries to the target using the function from the SDK.
+add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
+# Note that firebase_app needs to be last in the list.
+set(firebase_libs firebase_storage firebase_auth firebase_app)
+set(gtest_libs gtest gmock)
+target_link_libraries(${integration_test_target_name} ${firebase_libs}
+  ${gtest_libs} ${ADDITIONAL_LIBS})
diff --git a/storage/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json b/storage/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..d8db8d65fd
--- /dev/null
+++ b/storage/integration_test/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/storage/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json b/storage/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
new file mode 100644
index 0000000000..6f870a4629
--- /dev/null
+++ b/storage/integration_test/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -0,0 +1,51 @@
+{
+  "images" : [
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "iphone",
+      "subtype" : "retina4",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "1x"
+    },
+    {
+      "orientation" : "portrait",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    },
+    {
+      "orientation" : "landscape",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/storage/integration_test/Info.plist b/storage/integration_test/Info.plist
new file mode 100644
index 0000000000..c112525414
--- /dev/null
+++ b/storage/integration_test/Info.plist
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.google.firebase.cpp.storage.testapp</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>google</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.255980362477-3a1nf8c4nl0c7hlnlnmc98hbtg2mnbue</string>
+                                <string>firebase-game-loop</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+</dict>
+</plist>
diff --git a/storage/integration_test/LaunchScreen.storyboard b/storage/integration_test/LaunchScreen.storyboard
new file mode 100644
index 0000000000..673e0f7e68
--- /dev/null
+++ b/storage/integration_test/LaunchScreen.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>
diff --git a/storage/integration_test/LibraryManifest.xml b/storage/integration_test/LibraryManifest.xml
new file mode 100644
index 0000000000..18192be20a
--- /dev/null
+++ b/storage/integration_test/LibraryManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.cpp.storage.testapp.lib" >
+
+    <uses-sdk android:minSdkVersion='14'/>
+    <application />
+</manifest>
diff --git a/storage/integration_test/Podfile b/storage/integration_test/Podfile
new file mode 100644
index 0000000000..923e89d1c8
--- /dev/null
+++ b/storage/integration_test/Podfile
@@ -0,0 +1,16 @@
+
+source 'https://github.com/CocoaPods/Specs.git'
+platform :ios, '8.0'
+# Cloud Storage for Firebase test application.
+
+target 'integration_test' do
+  pod 'Firebase/Storage', '6.24.0'
+  pod 'Firebase/Auth', '6.24.0'
+end
+
+post_install do |installer|
+  # If this is running from inside the SDK directory, run the setup script.
+  system("if [[ -r ../../setup_integration_tests.py ]]; then python ../../setup_integration_tests.py .; fi")
+  system("/usr/bin/python ./download_googletest.py")
+end
+
diff --git a/storage/integration_test/build.gradle b/storage/integration_test/build.gradle
new file mode 100644
index 0000000000..768d3ffda6
--- /dev/null
+++ b/storage/integration_test/build.gradle
@@ -0,0 +1,77 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.google.gms:google-services:4.0.1'
+  }
+}
+
+allprojects {
+  repositories {
+    mavenLocal()
+    maven { url 'https://maven.google.com'  }
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 28
+  buildToolsVersion '28.0.3'
+
+  sourceSets {
+    main {
+      jniLibs.srcDirs = ['libs']
+      manifest.srcFile 'AndroidManifest.xml'
+      java.srcDirs = ['src/android/java']
+      res.srcDirs = ['res']
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.google.firebase.cpp.storage.testapp'
+    minSdkVersion 16
+    targetSdkVersion 28
+    versionCode 1
+    versionName '1.0'
+    externalNativeBuild.cmake {
+      arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
+    }
+  }
+  externalNativeBuild.cmake {
+    path 'CMakeLists.txt'
+  }
+  buildTypes {
+    release {
+      minifyEnabled true
+      proguardFile getDefaultProguardFile('proguard-android.txt')
+      proguardFile file('proguard.pro')
+    }
+  }
+}
+
+apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
+firebaseCpp.dependencies {
+  auth
+  storage
+}
+
+apply plugin: 'com.google.gms.google-services'
+
+task copyIntegrationTestFiles(type:Exec) {
+  // If this is running form inside the SDK directory, run the setup script.
+  if (project.file('../../setup_integration_tests.py').exists()) {
+    commandLine 'python', '../../setup_integration_tests.py', project.projectDir.toString()
+  }
+  else {
+    commandLine 'echo', ''
+  }
+}
+
+build.dependsOn(copyIntegrationTestFiles)
\ No newline at end of file
diff --git a/storage/integration_test/googletest.cmake b/storage/integration_test/googletest.cmake
new file mode 100644
index 0000000000..2ecbb08679
--- /dev/null
+++ b/storage/integration_test/googletest.cmake
@@ -0,0 +1,34 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Download GoogleTest from GitHub as an external project.
+
+# This CMake file is taken from:
+# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
+
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           master
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
diff --git a/storage/integration_test/gradle/wrapper/gradle-wrapper.jar b/storage/integration_test/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..8c0fb64a86
Binary files /dev/null and b/storage/integration_test/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/storage/integration_test/gradle/wrapper/gradle-wrapper.properties b/storage/integration_test/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..35732b09a0
--- /dev/null
+++ b/storage/integration_test/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Nov 27 14:03:45 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/storage/integration_test/gradlew b/storage/integration_test/gradlew
new file mode 100755
index 0000000000..91a7e269e1
--- /dev/null
+++ b/storage/integration_test/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/storage/integration_test/gradlew.bat b/storage/integration_test/gradlew.bat
new file mode 100644
index 0000000000..8a0b282aa6
--- /dev/null
+++ b/storage/integration_test/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/storage/integration_test/integration_test.xcodeproj/project.pbxproj b/storage/integration_test/integration_test.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..d1d6b852d1
--- /dev/null
+++ b/storage/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -0,0 +1,364 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		520BC0391C869159008CFBC3 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 520BC0381C869159008CFBC3 /* GoogleService-Info.plist */; };
+		529226D61C85F68000C89379 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D51C85F68000C89379 /* Foundation.framework */; };
+		529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D71C85F68000C89379 /* CoreGraphics.framework */; };
+		529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 529226D91C85F68000C89379 /* UIKit.framework */; };
+		D61C5F8E22BABA9C00A79141 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D61C5F8C22BABA9B00A79141 /* Images.xcassets */; };
+		D61C5F9622BABAD200A79141 /* integration_test.cc in Sources */ = {isa = PBXBuildFile; fileRef = D61C5F9222BABAD100A79141 /* integration_test.cc */; };
+		D62CCBC022F367140099BE9F /* gmock-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D62CCBBF22F367140099BE9F /* gmock-all.cc */; };
+		D66B16871CE46E8900E5638A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */; };
+		D67D355822BABD2200292C1D /* gtest-all.cc in Sources */ = {isa = PBXBuildFile; fileRef = D67D355622BABD2100292C1D /* gtest-all.cc */; };
+		D6C179E922CB322900C2651A /* ios_app_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E722CB322900C2651A /* ios_app_framework.mm */; };
+		D6C179EA22CB322900C2651A /* ios_firebase_test_framework.mm in Sources */ = {isa = PBXBuildFile; fileRef = D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */; };
+		D6C179EE22CB323300C2651A /* firebase_test_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EC22CB323300C2651A /* firebase_test_framework.cc */; };
+		D6C179F022CB32A000C2651A /* app_framework.cc in Sources */ = {isa = PBXBuildFile; fileRef = D6C179EF22CB32A000C2651A /* app_framework.cc */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		520BC0381C869159008CFBC3 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		529226D21C85F68000C89379 /* integration_test.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = integration_test.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		529226D51C85F68000C89379 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		529226D71C85F68000C89379 /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		529226D91C85F68000C89379 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		529226EE1C85F68000C89379 /* XCTest.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = XCTest.framework; path = Library/Frameworks/XCTest.framework; sourceTree = DEVELOPER_DIR; };
+		D61C5F8C22BABA9B00A79141 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
+		D61C5F8D22BABA9C00A79141 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		D61C5F9222BABAD100A79141 /* integration_test.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = integration_test.cc; path = src/integration_test.cc; sourceTree = "<group>"; };
+		D62CCBBF22F367140099BE9F /* gmock-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gmock-all.cc"; path = "external/googletest/src/googlemock/src/gmock-all.cc"; sourceTree = "<group>"; };
+		D62CCBC122F367320099BE9F /* gmock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gmock.h; path = external/googletest/src/googlemock/include/gmock/gmock.h; sourceTree = "<group>"; };
+		D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		D67D355622BABD2100292C1D /* gtest-all.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = "gtest-all.cc"; path = "external/googletest/src/googletest/src/gtest-all.cc"; sourceTree = "<group>"; };
+		D67D355722BABD2100292C1D /* gtest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = gtest.h; path = external/googletest/src/googletest/include/gtest/gtest.h; sourceTree = "<group>"; };
+		D6C179E722CB322900C2651A /* ios_app_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_app_framework.mm; path = src/ios/ios_app_framework.mm; sourceTree = "<group>"; };
+		D6C179E822CB322900C2651A /* ios_firebase_test_framework.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ios_firebase_test_framework.mm; path = src/ios/ios_firebase_test_framework.mm; sourceTree = "<group>"; };
+		D6C179EB22CB323300C2651A /* firebase_test_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = firebase_test_framework.h; path = src/firebase_test_framework.h; sourceTree = "<group>"; };
+		D6C179EC22CB323300C2651A /* firebase_test_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = firebase_test_framework.cc; path = src/firebase_test_framework.cc; sourceTree = "<group>"; };
+		D6C179ED22CB323300C2651A /* app_framework.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = app_framework.h; path = src/app_framework.h; sourceTree = "<group>"; };
+		D6C179EF22CB32A000C2651A /* app_framework.cc */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = app_framework.cc; path = src/app_framework.cc; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		529226CF1C85F68000C89379 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				529226D81C85F68000C89379 /* CoreGraphics.framework in Frameworks */,
+				529226DA1C85F68000C89379 /* UIKit.framework in Frameworks */,
+				529226D61C85F68000C89379 /* Foundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		529226C91C85F68000C89379 = {
+			isa = PBXGroup;
+			children = (
+				D61C5F8C22BABA9B00A79141 /* Images.xcassets */,
+				D61C5F8D22BABA9C00A79141 /* Info.plist */,
+				D66B16861CE46E8900E5638A /* LaunchScreen.storyboard */,
+				520BC0381C869159008CFBC3 /* GoogleService-Info.plist */,
+				5292271D1C85FB5500C89379 /* src */,
+				529226D41C85F68000C89379 /* Frameworks */,
+				529226D31C85F68000C89379 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		529226D31C85F68000C89379 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				529226D21C85F68000C89379 /* integration_test.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		529226D41C85F68000C89379 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				529226D51C85F68000C89379 /* Foundation.framework */,
+				529226D71C85F68000C89379 /* CoreGraphics.framework */,
+				529226D91C85F68000C89379 /* UIKit.framework */,
+				529226EE1C85F68000C89379 /* XCTest.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		5292271D1C85FB5500C89379 /* src */ = {
+			isa = PBXGroup;
+			children = (
+				D62CCBC122F367320099BE9F /* gmock.h */,
+				D62CCBBF22F367140099BE9F /* gmock-all.cc */,
+				D67D355622BABD2100292C1D /* gtest-all.cc */,
+				D67D355722BABD2100292C1D /* gtest.h */,
+				D6C179EF22CB32A000C2651A /* app_framework.cc */,
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diff --git a/storage/integration_test/proguard.pro b/storage/integration_test/proguard.pro
new file mode 100644
index 0000000000..2d04b8a9a5
--- /dev/null
+++ b/storage/integration_test/proguard.pro
@@ -0,0 +1,2 @@
+-ignorewarnings
+-keep,includedescriptorclasses public class com.google.firebase.example.LoggingUtils { * ; }
diff --git a/storage/integration_test/readme.md b/storage/integration_test/readme.md
new file mode 100644
index 0000000000..6b9efa6fcd
--- /dev/null
+++ b/storage/integration_test/readme.md
@@ -0,0 +1,215 @@
+Cloud Storage for Firebase Quickstart
+========================
+
+The Cloud Storage for Firebase Integration Test (integration test) demonstrates
+Cloud Storage operations with the Firebase C++ SDK for Cloud Storage.
+The application has no user interface and simply logs actions it's performing
+to the console.
+
+The integration test uses the GoogleTest testing framework to perform a variety
+of tests on a live Firebase project. Tests include:
+  - Creating a firebase::App in a platform-specific way. The App holds
+    platform-specific context that's used by other Firebase APIs, and is a
+    central point for communication between the Cloud Storage C++ and
+    Firebase Auth C++ libraries.
+  - Getting a pointer to firebase::Auth, and signs in anonymously. This allows the
+    integration test to access a Cloud Storage instance with authentication rules
+    enabled, which is the default setting in Firebase Console.
+  - Gets a StorageReference to a test-specific storage node, uses
+    StorageReference::Child() to create a child with a unique key based on the
+    current time in microseconds to work in, and gets a reference to that child,
+    which the integration test will use for the remainder of its actions.
+  - Uploads some sample files and reads them back to ensure the storage can be
+    read from and written to.
+  - Checks the Metadata of the uploaded and downloaded files to ensure they
+    return the expected values for things like size and date modified.
+  - Disconnects and then reconnects and verifies it still has access to the
+    files uploaded.
+  - Shuts down the Cloud Storage, Firebase Auth, and Firebase App systems,
+    ensuring the systems can be shut down in any order.
+
+Introduction
+------------
+
+- [Read more about Cloud Storage for Firebase](https://firebase.google.com/docs/storage/)
+
+Building and Running the integration test
+-----------------------------------------
+
+### iOS
+  - Link your iOS app to the Firebase libraries.
+    - Get CocoaPods version 1 or later by running,
+        ```
+        sudo gem install cocoapods --pre
+        ```
+    - From the integration_tests/storage directory, install the CocoaPods listed
+      in the Podfile by running,
+        ```
+        pod install
+        ```
+    - Open the generated Xcode workspace (which now has the CocoaPods),
+        ```
+        open integration_test.xcworkspace
+        ```
+    - For further details please refer to the
+      [general instructions for setting up an iOS app with Firebase](https://firebase.google.com/docs/ios/setup).
+  - Register your iOS app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/), and attach
+      your iOS app to it.
+      - You can use "com.google.firebase.cpp.storage.testapp" as the iOS Bundle
+        ID while you're testing. You can omit App Store ID while testing.
+    - Add the GoogleService-Info.plist that you downloaded from Firebase console
+      to the integration_test/storage directory. This file identifies your iOS
+      app to the Firebase backend.
+    - In the Firebase console for your app, select "Auth", then enable
+      "Anonymous". This will allow the integration test to use anonymous sign-in to
+      authenticate with Cloud Storage, which requires a signed-in user by
+      default (an anonymous user will suffice).
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Add the following frameworks from the Firebase C++ SDK to the project:
+    - frameworks/ios/universal/firebase.framework
+    - frameworks/ios/universal/firebase_auth.framework
+    - frameworks/ios/universal/firebase_storage.framework
+    - You will need to either,
+       1. Check "Copy items if needed" when adding the frameworks, or
+       2. Add the framework path in "Framework Search Paths"
+          - e.g. If you downloaded the Firebase C++ SDK to
+            `/Users/me/firebase_cpp_sdk`,
+            then you would add the path
+            `/Users/me/firebase_cpp_sdk/frameworks/ios/universal`.
+          - To add the path, in XCode, select your project in the project
+            navigator, then select your target in the main window.
+            Select the "Build Settings" tab, and click "All" to see all
+            the build settings. Scroll down to "Search Paths", and add
+            your path to "Framework Search Paths".
+  - In XCode, build & run the sample on an iOS device or simulator.
+  - The integration test has no interativity. The output of the app can be
+    viewed via the console or on the device's display.  In Xcode, select "View
+    --> Debug Area --> Activate Console" from the menu to view the console.
+
+### Android
+  - Register your Android app with Firebase.
+    - Create a new app on
+      the [Firebase console](https://firebase.google.com/console/), and attach
+      your Android app to it.
+      - You can use "com.google.firebase.cpp.storage.testapp" as the Package
+        Name while you're testing.
+      - To
+        [generate a SHA1](https://developers.google.com/android/guides/client-auth)
+        run this command on Mac and Linux,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore
+        ```
+        or this command on Windows,
+        ```
+        keytool -exportcert -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore
+        ```
+      - If keytool reports that you do not have a debug.keystore, you can
+        [create one with](http://developer.android.com/tools/publishing/app-signing.html#signing-manually),
+        ```
+        keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"
+        ```
+    - Add the `google-services.json` file that you downloaded from Firebase
+      console to the integration_test/storage directory. This file identifies
+      your Android app to the Firebase backend.
+    - In the Firebase console for your app, select "Auth", then enable
+      "Anonymous". This will allow the integration test to use anonymous sign-in
+      to authenticate with Cloud Storage, which requires a signed-in user by
+      default (an anonymous user will suffice).
+    - For further details please refer to the
+      [general instructions for setting up an Android app with Firebase](https://firebase.google.com/docs/android/setup).
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the location of the Firebase C++ SDK by setting the
+    firebase\_cpp\_sdk.dir Gradle property to the SDK install directory.
+    For example, in the project directory:
+      ```
+      echo "systemProp.firebase\_cpp\_sdk.dir=/User/$USER/firebase\_cpp\_sdk" >> gradle.properties
+      ```
+  - Ensure the Android SDK and NDK locations are set in Android Studio.
+    - From the Android Studio launch menu, go to `File/Project Structure...` or
+      `Configure/Project Defaults/Project Structure...`
+      (Shortcut: Control + Alt + Shift + S on windows,  Command + ";" on a mac)
+      and download the SDK and NDK if the locations are not yet set.
+  - Open *build.gradle* in Android Studio.
+    - From the Android Studio launch menu, "Open an existing Android Studio
+      project", and select `build.gradle`.
+  - Install the SDK Platforms that Android Studio reports missing.
+  - Build the integration test and run it on an Android device or emulator.
+    - Once you've installed the SDKs in Android Studio, you can build the
+      integration test in Android Studio, or from the command-line by running
+      `./gradlew build`.
+  - The integration test has no interactive interface. The output of the app can
+    be viewed on the device's display, or in the logcat output of Android studio
+    or by running "adb logcat *:W android_main firebase" from the command line.
+
+### Desktop
+  - Register your app with Firebase.
+    - Create a new app on the [Firebase console](https://firebase.google.com/console/),
+      following the above instructions for Android or iOS.
+    - If you have an Android project, add the `google-services.json` file that
+      you downloaded from the Firebase console to the integration_test/storage
+      directory.
+    - If you have an iOS project, and don't wish to use an Android project,
+      you can use the Python script `generate_xml_from_google_services_json.py --plist`,
+      located in the Firebase C++ SDK, to convert your `GoogleService-Info.plist`
+      file into a `google-services-desktop.json` file, which can then be
+      placed in the integration_test/storage directory .
+  - Download the Firebase C++ SDK linked from
+    [https://firebase.google.com/docs/cpp/setup](https://firebase.google.com/docs/cpp/setup)
+    and unzip it to a directory of your choice.
+  - Configure the integration test with the location of the Firebase C++ SDK.
+    This can be done a couple different ways (in highest to lowest priority):
+    - When invoking cmake, pass in the location with
+      -DFIREBASE_CPP_SDK_DIR=/path/to/firebase_cpp_sdk.
+    - Set an environment variable for FIREBASE_CPP_SDK_DIR to the path to use.
+    - Edit the CMakeLists.txt file, changing the FIREBASE_CPP_SDK_DIR path
+      to the appropriate location.
+  - From the integration_test/storage directory, generate the build files by running,
+      ```
+      cmake .
+      ```
+    If you want to use XCode, you can use -G"Xcode" to generate the project.
+    Similarly, to use Visual Studio, -G"Visual Studio 15 2017". For more
+    information, see
+    [CMake generators](https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html).
+  - Build the integration test, by either opening the generated project file
+    based on the platform, or running,
+      ```
+      cmake --build .
+      ```
+  - Execute the integration test by running,
+      ```
+      ./integration_test
+      ```
+    Note that the executable might be under another directory, such as Debug.    
+  - The integration test has no user interface, but the output can be viewed via
+    the console.
+
+Support
+-------
+
+[https://firebase.google.com/support/](https://firebase.google.com/support/)
+
+License
+-------
+
+Copyright 2016 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/storage/integration_test/res/layout/main.xml b/storage/integration_test/res/layout/main.xml
new file mode 100644
index 0000000000..d3ffb63082
--- /dev/null
+++ b/storage/integration_test/res/layout/main.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+    <TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/app_name"
+    />
+</LinearLayout>
diff --git a/storage/integration_test/res/values/strings.xml b/storage/integration_test/res/values/strings.xml
new file mode 100644
index 0000000000..6d72216f3b
--- /dev/null
+++ b/storage/integration_test/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name" description="Integration Test app name" translatable="false">Cloud Storage for Firebase Integration Test</string>
+</resources>
diff --git a/storage/integration_test/settings.gradle b/storage/integration_test/settings.gradle
new file mode 100644
index 0000000000..e30c259ab6
--- /dev/null
+++ b/storage/integration_test/settings.gradle
@@ -0,0 +1,39 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+def firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
+if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+  firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
+  if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
+    if ((new File('../../cpp_sdk_version.json')).exists()) {
+      firebase_cpp_sdk_dir = new File('../..').absolutePath
+    }
+    else if ((new File('firebase_cpp_sdk')).exists()) {
+      firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
+    } else {
+      throw new StopActionException(
+        'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
+        'environment variable must be set to reference the Firebase C++ ' +
+        'SDK install directory.  This is used to configure static library ' +
+        'and C/C++ include paths for the SDK.')
+    }
+  }
+}
+if (!(new File(firebase_cpp_sdk_dir)).exists()) {
+  throw new StopActionException(
+    sprintf('Firebase C++ SDK directory %s does not exist',
+            firebase_cpp_sdk_dir))
+}
+gradle.ext.firebase_cpp_sdk_dir = "$firebase_cpp_sdk_dir"
+includeBuild "$firebase_cpp_sdk_dir"
\ No newline at end of file
diff --git a/storage/integration_test/src/integration_test.cc b/storage/integration_test/src/integration_test.cc
new file mode 100644
index 0000000000..80f193cce2
--- /dev/null
+++ b/storage/integration_test/src/integration_test.cc
@@ -0,0 +1,776 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <inttypes.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/auth.h"
+#include "firebase/internal/platform.h"
+#include "firebase/storage.h"
+#include "firebase/util.h"
+#include "firebase_test_framework.h"  // NOLINT
+
+// The TO_STRING macro is useful for command line defined strings as the quotes
+// get stripped.
+#define TO_STRING_EXPAND(X) #X
+#define TO_STRING(X) TO_STRING_EXPAND(X)
+
+// Path to the Firebase config file to load.
+#ifdef FIREBASE_CONFIG
+#define FIREBASE_CONFIG_STRING TO_STRING(FIREBASE_CONFIG)
+#else
+#define FIREBASE_CONFIG_STRING ""
+#endif  // FIREBASE_CONFIG
+
+namespace firebase_testapp_automated {
+
+using app_framework::LogDebug;
+
+// You can customize the Storage URL here.
+const char* kStorageUrl = nullptr;
+
+#if FIREBASE_PLATFORM_DESKTOP
+// Use a larger file on desktop...
+const int kLargeFileMegabytes = 25;
+#else
+// ...and a smaller file on mobile.
+const int kLargeFileMegabytes = 10;
+#endif
+
+const char kRootNodeName[] = "integration_test_data";
+
+using app_framework::GetCurrentTimeInMicroseconds;
+using app_framework::PathForResource;
+using app_framework::ProcessEvents;
+using firebase_test_framework::FirebaseTest;
+using testing::ElementsAreArray;
+
+class FirebaseStorageTest : public FirebaseTest {
+ public:
+  FirebaseStorageTest();
+  ~FirebaseStorageTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  // Initialize Firebase App, Firebase Auth, and Firebase Storage.
+  void Initialize();
+  // Shut down Firebase Storage, Firebase Auth, and Firebase App.
+  void Terminate();
+  // Sign in an anonymous user.
+  void SignIn();
+  // Create a unique working folder and return a reference to it.
+  firebase::storage::StorageReference CreateFolder();
+
+  bool initialized_;
+  firebase::auth::Auth* auth_;
+  firebase::storage::Storage* storage_;
+  // File references that we need to delete on test exit.
+  std::vector<firebase::storage::StorageReference> cleanup_files_;
+  std::string saved_url_;
+};
+
+FirebaseStorageTest::FirebaseStorageTest()
+    : initialized_(false), auth_(nullptr), storage_(nullptr) {
+  FindFirebaseConfig(FIREBASE_CONFIG_STRING);
+}
+
+FirebaseStorageTest::~FirebaseStorageTest() {
+  // Must be cleaned up on exit.
+  assert(app_ == nullptr);
+  assert(auth_ == nullptr);
+  assert(storage_ == nullptr);
+}
+
+void FirebaseStorageTest::SetUp() {
+  FirebaseTest::SetUp();
+  Initialize();
+}
+
+void FirebaseStorageTest::TearDown() {
+  if (initialized_) {
+    Terminate();
+  }
+  FirebaseTest::TearDown();
+}
+
+void FirebaseStorageTest::Initialize() {
+  if (initialized_) return;
+
+  InitializeApp();
+
+  LogDebug("Initializing Firebase Auth and Cloud Storage.");
+
+  // 0th element has a reference to this object, the rest have the initializer
+  // targets.
+  void* initialize_targets[] = {&auth_, &storage_};
+
+  const firebase::ModuleInitializer::InitializerFn initializers[] = {
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Firebase Auth.");
+        ::firebase::InitResult result;
+        *reinterpret_cast<::firebase::auth::Auth**>(targets[0]) =
+            ::firebase::auth::Auth::GetAuth(app, &result);
+        return result;
+      },
+      [](::firebase::App* app, void* data) {
+        void** targets = reinterpret_cast<void**>(data);
+        LogDebug("Attempting to initialize Cloud Storage.");
+        ::firebase::InitResult result;
+        firebase::storage::Storage* storage =
+            firebase::storage::Storage::GetInstance(app, kStorageUrl, &result);
+        *reinterpret_cast<::firebase::storage::Storage**>(targets[1]) = storage;
+        return result;
+      }};
+
+  ::firebase::ModuleInitializer initializer;
+  initializer.Initialize(app_, initialize_targets, initializers,
+                         sizeof(initializers) / sizeof(initializers[0]));
+
+  WaitForCompletion(initializer.InitializeLastResult(), "Initialize");
+
+  ASSERT_EQ(initializer.InitializeLastResult().error(), 0)
+      << initializer.InitializeLastResult().error_message();
+
+  LogDebug("Successfully initialized Firebase Auth and Cloud Storage.");
+
+  initialized_ = true;
+}
+
+void FirebaseStorageTest::Terminate() {
+  if (!initialized_) return;
+
+  if (storage_) {
+    LogDebug("Cleaning up files.");
+    std::vector<firebase::Future<void>> cleanups;
+    cleanups.reserve(cleanup_files_.size());
+    for (int i = 0; i < cleanup_files_.size(); ++i) {
+      cleanups.push_back(cleanup_files_[i].Delete());
+    }
+    for (int i = 0; i < cleanups.size(); ++i) {
+      WaitForCompletion(cleanups[i], "FirebaseStorageTest::TearDown");
+    }
+    cleanup_files_.clear();
+
+    LogDebug("Shutdown the Storage library.");
+    delete storage_;
+    storage_ = nullptr;
+  }
+  if (auth_) {
+    LogDebug("Shutdown the Auth library.");
+    delete auth_;
+    auth_ = nullptr;
+  }
+
+  TerminateApp();
+
+  initialized_ = false;
+
+  ProcessEvents(100);
+}
+
+void FirebaseStorageTest::SignIn() {
+  LogDebug("Signing in.");
+  firebase::Future<firebase::auth::User*> sign_in_future =
+      auth_->SignInAnonymously();
+  WaitForCompletion(sign_in_future, "SignInAnonymously");
+  if (sign_in_future.error() != 0) {
+    FAIL() << "Ensure your application has the Anonymous sign-in provider "
+              "enabled in Firebase Console.";
+  }
+  ProcessEvents(100);
+}
+
+firebase::storage::StorageReference FirebaseStorageTest::CreateFolder() {
+  // Generate a folder for the test data based on the time in milliseconds.
+  int64_t time_in_microseconds = GetCurrentTimeInMicroseconds();
+
+  char buffer[21] = {0};
+  snprintf(buffer, sizeof(buffer), "%lld",
+           static_cast<long long>(time_in_microseconds));  // NOLINT
+  saved_url_ = buffer;
+  return storage_->GetReference(kRootNodeName).Child(saved_url_);
+}
+
+// Test cases below.
+
+TEST_F(FirebaseStorageTest, TestInitializeAndTerminate) {
+  // Already tested via SetUp() and TearDown().
+}
+
+TEST_F(FirebaseStorageTest, TestSignIn) {
+  SignIn();
+  EXPECT_NE(auth_->current_user(), nullptr);
+}
+
+TEST_F(FirebaseStorageTest, TestCreateWorkingFolder) {
+  SignIn();
+  // Create a unique child in the storage that we can run our tests in.
+  firebase::storage::StorageReference ref = CreateFolder();
+  EXPECT_NE(saved_url_, "");
+
+  LogDebug("Storage URL: gs://%s%s", ref.bucket().c_str(),
+           ref.full_path().c_str());
+  // Create the same reference in a few different manners and ensure they're
+  // equivalent.
+  // NOLINTNEXTLINE intentional redundant string conversion
+  {
+    firebase::storage::StorageReference ref_from_str =
+        storage_->GetReference(std::string(kRootNodeName)).Child(saved_url_);
+    EXPECT_EQ(ref.bucket(), ref_from_str.bucket());
+    EXPECT_EQ(ref.full_path(), ref_from_str.full_path());
+  }
+  std::string url = "gs://" + ref.bucket() + "/" + kRootNodeName;
+  LogDebug("Calling GetReferenceFromUrl(%s)", url.c_str());
+  firebase::storage::StorageReference ref_from_url =
+      storage_->GetReferenceFromUrl(url.c_str()).Child(saved_url_);
+  EXPECT_TRUE(ref_from_url.is_valid());
+  EXPECT_EQ(ref.bucket(), ref_from_url.bucket());
+  EXPECT_EQ(ref.full_path(), ref_from_url.full_path());
+  firebase::storage::StorageReference ref_from_url_str =
+      storage_->GetReferenceFromUrl(url).Child(saved_url_);
+  EXPECT_TRUE(ref_from_url_str.is_valid());
+  EXPECT_EQ(ref.bucket(), ref_from_url_str.bucket());
+  EXPECT_EQ(ref.full_path(), ref_from_url_str.full_path());
+}
+
+TEST_F(FirebaseStorageTest, TestStorageUrl) {
+  SignIn();
+  // Confirm that creating a storage instance with a URL returns a url(), and
+  // creating a storage instance with a null URL returns a blank url().
+  std::string default_url =
+      std::string("gs://") + storage_->GetReference().bucket();
+
+  // Check whether the Storage instance we already have is handled correctly.
+  EXPECT_EQ(storage_->url(), kStorageUrl ? kStorageUrl : "");
+  delete storage_;
+  storage_ = nullptr;
+  {
+    firebase::storage::Storage* storage_explicit =
+        firebase::storage::Storage::GetInstance(app_, default_url.c_str(),
+                                                nullptr);
+    ASSERT_NE(storage_explicit, nullptr);
+    EXPECT_EQ(storage_explicit->url(), default_url);
+    delete storage_explicit;
+  }
+  {
+    firebase::storage::Storage* storage_implicit =
+        firebase::storage::Storage::GetInstance(app_, nullptr, nullptr);
+    ASSERT_NE(storage_implicit, nullptr);
+    EXPECT_EQ(storage_implicit->url(), "");
+    delete storage_implicit;
+  }
+}
+
+// NOLINTNEXTLINE
+const std::string kSimpleTestFile =
+    "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do "
+    "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim "
+    "ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut "
+    "aliquip ex ea commodo consequat. Duis aute irure dolor in "
+    "reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla "
+    "pariatur. Excepteur sint occaecat cupidatat non proident, sunt in "
+    "culpa qui officia deserunt mollit anim id est laborum.";
+
+TEST_F(FirebaseStorageTest, TestWriteAndReadByteBuffer) {
+  SignIn();
+
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile.txt");
+  LogDebug("Storage URL: gs://%s%s", ref.bucket().c_str(),
+           ref.full_path().c_str());
+  cleanup_files_.push_back(ref);
+  // Write to a simple file.
+  {
+    LogDebug("Upload sample file from memory.");
+    firebase::Future<firebase::storage::Metadata> future =
+        ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size());
+    WaitForCompletion(future, "PutBytes");
+    auto metadata = future.result();
+    EXPECT_EQ(metadata->size_bytes(), kSimpleTestFile.size());
+  }
+
+  // Now read back the file.
+  {
+    LogDebug("Download sample file to memory.");
+    const size_t kBufferSize = 1024;
+    char buffer[kBufferSize];
+    memset(buffer, 0, sizeof(buffer));
+
+    firebase::Future<size_t> future = ref.GetBytes(buffer, kBufferSize);
+    WaitForCompletion(future, "GetBytes");
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kSimpleTestFile.size());
+    EXPECT_THAT(kSimpleTestFile, ElementsAreArray(buffer, file_size))
+        << "Download failed, file contents did not match.";
+  }
+}
+
+TEST_F(FirebaseStorageTest, TestWriteAndReadFileWithCustomMetadata) {
+  SignIn();
+
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-CustomMetadata.txt");
+  LogDebug("Storage URL: gs://%s%s", ref.bucket().c_str(),
+           ref.full_path().c_str());
+  cleanup_files_.push_back(ref);
+  std::string content_type = "text/plain";
+  std::string custom_metadata_key = "specialkey";
+  std::string custom_metadata_value = "secret value";
+  // Write to a simple file.
+  {
+    LogDebug("Write a sample file with custom metadata from byte buffer.");
+    firebase::storage::Metadata metadata;
+    metadata.set_content_type(content_type.c_str());
+    (*metadata.custom_metadata())[custom_metadata_key] = custom_metadata_value;
+    firebase::Future<firebase::storage::Metadata> future =
+        ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size(), metadata);
+    WaitForCompletion(future, "PutBytes");
+    const firebase::storage::Metadata* metadata_written = future.result();
+    ASSERT_NE(metadata_written, nullptr);
+    EXPECT_EQ(metadata_written->size_bytes(), kSimpleTestFile.size());
+    EXPECT_EQ(metadata_written->content_type(), content_type);
+    auto& custom_metadata = *metadata_written->custom_metadata();
+    EXPECT_EQ(custom_metadata[custom_metadata_key], custom_metadata_value);
+  }
+  // Now read back the file.
+  {
+    LogDebug("Download sample file with custom metadata to memory.");
+    const size_t kBufferSize = 1024;
+    char buffer[kBufferSize];
+    memset(buffer, 0, sizeof(buffer));
+
+    firebase::Future<size_t> future = ref.GetBytes(buffer, kBufferSize);
+    WaitForCompletion(future, "GetBytes");
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kSimpleTestFile.size());
+    EXPECT_THAT(kSimpleTestFile, ElementsAreArray(buffer, file_size))
+        << "Download failed, file contents did not match.";
+  }
+  // And read the custom metadata.
+  {
+    LogDebug("Read custom metadata.");
+    firebase::Future<firebase::storage::Metadata> future = ref.GetMetadata();
+    WaitForCompletion(future, "GetFileMetadata");
+    const firebase::storage::Metadata* metadata = future.result();
+    ASSERT_NE(metadata, nullptr);
+
+    // Get the current time to compare to the Timestamp.
+    int64_t current_time_seconds = static_cast<int64_t>(time(nullptr));
+    int64_t updated_time_milliseconds = metadata->updated_time();
+    int64_t updated_time_seconds = updated_time_milliseconds / 1000;
+    int64_t time_difference_seconds =
+        updated_time_seconds - current_time_seconds;
+    // As long as our timestamp is within a day, it's correct enough for
+    // our purposes.
+    const int64_t kAllowedTimeDifferenceSeconds = 60L * 60L * 24L;
+    EXPECT_TRUE(time_difference_seconds < kAllowedTimeDifferenceSeconds &&
+                time_difference_seconds > -kAllowedTimeDifferenceSeconds)
+        << "Bad timestamp in metadata.";
+    EXPECT_EQ(metadata->size_bytes(), kSimpleTestFile.size());
+    EXPECT_EQ(metadata->content_type(), content_type);
+    ASSERT_NE(metadata->custom_metadata(), nullptr);
+    auto& custom_metadata = *metadata->custom_metadata();
+    EXPECT_EQ(custom_metadata[custom_metadata_key], custom_metadata_value);
+  }
+}
+
+const char kPutFileTestFile[] = "PutFileTest.txt";
+const char kGetFileTestFile[] = "GetFileTest.txt";
+const char kFileUriScheme[] = "file://";
+
+TEST_F(FirebaseStorageTest, TestPutFileAndGetFile) {
+  SignIn();
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-FileIO.txt");
+  cleanup_files_.push_back(ref);
+
+  // Upload a file.
+  {
+    // Write file that we're going to upload.
+    std::string path = PathForResource() + kPutFileTestFile;
+    // Cloud Storage expects a URI, so add file:// in front of local paths.
+    std::string file_path = kFileUriScheme + path;
+
+    LogDebug("Creating local file: %s", path.c_str());
+
+    FILE* file = fopen(path.c_str(), "wb");
+    std::fwrite(kSimpleTestFile.c_str(), 1, kSimpleTestFile.size(), file);
+    fclose(file);
+
+    firebase::storage::Metadata new_metadata;
+    std::string content_type = "text/plain";
+    new_metadata.set_content_type(content_type);
+
+    LogDebug("Uploading sample file from disk.");
+    firebase::Future<firebase::storage::Metadata> future =
+        ref.PutFile(file_path.c_str(), new_metadata);
+    WaitForCompletion(future, "PutFile");
+    ASSERT_NE(future.result(), nullptr);
+    const firebase::storage::Metadata* metadata = future.result();
+    EXPECT_EQ(metadata->size_bytes(), kSimpleTestFile.size());
+    EXPECT_EQ(metadata->content_type(), content_type);
+  }
+
+  // Use GetBytes to ensure the file uploaded correctly.
+  {
+    LogDebug("Downloading file to disk.");
+    const size_t kBufferSize = 1024;
+    char buffer[kBufferSize];
+    memset(buffer, 0, sizeof(buffer));
+
+    firebase::Future<size_t> future = ref.GetBytes(buffer, kBufferSize);
+    WaitForCompletion(future, "GetBytes");
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kSimpleTestFile.size());
+    EXPECT_THAT(kSimpleTestFile, ElementsAreArray(buffer, file_size))
+        << "Read file to byte buffer failed, file contents did not match.";
+  }
+  // Test GetFile to ensure we can download to a file.
+  {
+    std::string path = PathForResource() + kGetFileTestFile;
+    // Cloud Storage expects a URI, so add file:// in front of local paths.
+    std::string file_path = kFileUriScheme + path;
+
+    LogDebug("Saving to local file: %s", path.c_str());
+
+    firebase::Future<size_t> future = ref.GetFile(file_path.c_str());
+    WaitForCompletion(future, "GetFile");
+    ASSERT_NE(future.result(), nullptr);
+    EXPECT_EQ(*future.result(), kSimpleTestFile.size());
+
+    std::vector<char> buffer(kSimpleTestFile.size());
+    FILE* file = fopen(path.c_str(), "rb");
+    ASSERT_NE(file, nullptr);
+    std::fread(&buffer[0], 1, kSimpleTestFile.size(), file);
+    fclose(file);
+    EXPECT_THAT(kSimpleTestFile, ElementsAreArray(&buffer[0], buffer.size()))
+        << "Download to disk failed, file contents did not match.";
+  }
+}
+
+TEST_F(FirebaseStorageTest, TestDownloadUrl) {
+  SignIn();
+
+  const char kTestFileName[] = "TestFile-DownloadUrl.txt";
+  firebase::storage::StorageReference ref = CreateFolder().Child(kTestFileName);
+  cleanup_files_.push_back(ref);
+
+  LogDebug("Uploading file.");
+  WaitForCompletion(ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size()),
+                    "PutBytes");
+
+  LogDebug("Getting download URL.");
+  firebase::Future<std::string> future = ref.GetDownloadUrl();
+  WaitForCompletion(future, "GetDownloadUrl");
+  ASSERT_NE(future.result(), nullptr);
+  LogDebug("Got download URL: %s", future.result()->c_str());
+  // Check for a somewhat well-formed URL, i.e. it starts with "https://" and
+  // has "TestFile-DownloadUrl" in the name.
+  EXPECT_TRUE(future.result()->find("https://") == 0)
+      << "Download Url doesn't start with https://";
+  EXPECT_TRUE(future.result()->find(kTestFileName) != std::string::npos)
+      << "Download Url doesn't contain the filename " << kTestFileName;
+}
+
+TEST_F(FirebaseStorageTest, TestDeleteFile) {
+  SignIn();
+
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-Delete.txt");
+  // Don't add to cleanup_files_ because we are going to delete it anyway.
+
+  LogDebug("Uploading file.");
+  WaitForCompletion(ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size()),
+                    "PutBytes");
+
+  LogDebug("Deleting file.");
+  WaitForCompletion(ref.Delete(), "Delete");
+
+  // Need a placeholder buffer.
+  const size_t kBufferSize = 1024;
+  char buffer[kBufferSize];
+  // Ensure the file was deleted.
+  LogDebug("Ensuring file was deleted.");
+  firebase::Future<size_t> future = ref.GetBytes(buffer, kBufferSize);
+  WaitForCompletion(future, "GetBytes",
+                    firebase::storage::kErrorObjectNotFound);
+}
+
+class StorageListener : public firebase::storage::Listener {
+ public:
+  StorageListener()
+      : on_paused_was_called_(false), on_progress_was_called_(false) {}
+
+  // Tracks whether OnPaused was ever called and resumes the transfer.
+  void OnPaused(firebase::storage::Controller* controller) override {
+    on_paused_was_called_ = true;
+    controller->Resume();
+  }
+
+  void OnProgress(firebase::storage::Controller* controller) override {
+    LogDebug("Transferred %lld of %lld", controller->bytes_transferred(),
+             controller->total_byte_count());
+    on_progress_was_called_ = true;
+  }
+
+  bool on_paused_was_called() const { return on_paused_was_called_; }
+  bool on_progress_was_called() const { return on_progress_was_called_; }
+
+ public:
+  bool on_paused_was_called_;
+  bool on_progress_was_called_;
+};
+
+// Contents of a large file, "X" will be replaced with a different character
+// each line.
+const char kLargeFileString[] =
+    "X: This is a large file with multiple lines and even some \xB1nary "
+    "char\xAC\ters.\n";
+
+std::string CreateDataForLargeFile(size_t size_bytes) {
+  std::string large_test_file;
+  const std::string kLine = kLargeFileString;
+
+  large_test_file.reserve(size_bytes + kLine.size());
+  char replacement[2] = "a";
+  while (large_test_file.size() < size_bytes) {
+    std::string line = kLine;
+    line.replace(kLine.find("X"), 1, replacement);
+    large_test_file += line;
+    replacement[0] = (replacement[0] - 'a' + 1) % 26 + 'a';
+  }
+  large_test_file.resize(size_bytes);
+  return large_test_file;
+}
+
+TEST_F(FirebaseStorageTest, TestLargeFilePauseResumeAndDownloadCancel) {
+  SignIn();
+
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-LargeFile.txt");
+  cleanup_files_.push_back(ref);
+
+  const size_t kLargeFileSize = kLargeFileMegabytes * 1024 * 1024;
+  const std::string kLargeTestFile = CreateDataForLargeFile(kLargeFileSize);
+
+  {
+    LogDebug("Uploading large file with pause/resume.");
+    StorageListener listener;
+    firebase::storage::Controller controller;
+    firebase::Future<firebase::storage::Metadata> future = ref.PutBytes(
+        kLargeTestFile.c_str(), kLargeFileSize, &listener, &controller);
+
+    // Ensure the Controller is valid now that we have associated it with an
+    // operation.
+    ASSERT_TRUE(controller.is_valid());
+
+    ProcessEvents(500);
+    // After waiting a moment for the operation to start, pause the operation
+    // and verify it was successfully paused. Note that pause might not take
+    // effect immediately, so we give it a few moments to pause before
+    // failing.
+    LogDebug("Pausing upload.");
+    EXPECT_TRUE(controller.Pause()) << "Upload pause";
+
+    // The StorageListener's OnPaused will call Resume().
+
+    LogDebug("Waiting for future.");
+    WaitForCompletion(future, "WriteLargeFile");
+    LogDebug("Upload complete.");
+
+    // Ensure the various callbacks were called.
+    EXPECT_TRUE(listener.on_paused_was_called());
+    EXPECT_TRUE(listener.on_progress_was_called());
+
+    ASSERT_EQ(future.error(), firebase::storage::kErrorNone);
+    auto metadata = future.result();
+    ASSERT_EQ(metadata->size_bytes(), kLargeFileSize)
+        << "Metadata reports incorrect size, file failed to upload.";
+  }
+
+  // Download the file and confirm it's correct.
+  std::vector<char> buffer(kLargeFileSize);
+  {
+    memset(&buffer[0], 0, kLargeFileSize);
+    LogDebug("Downloading large file for comparison.");
+    StorageListener listener;
+    firebase::Future<size_t> future =
+        ref.GetBytes(&buffer[0], kLargeFileSize, &listener);
+    WaitForCompletion(future, "GetBytes");
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kLargeFileSize) << "Read size did not match";
+    EXPECT_TRUE(memcmp(kLargeTestFile.c_str(), &buffer[0], kLargeFileSize) == 0)
+        << "Read large file failed, contents did not match.";
+  }
+#if FIREBASE_PLATFORM_DESKTOP
+  {
+    // Test pausing/resuming while downloading (desktop only).
+    memset(&buffer[0], 0, kLargeFileSize);
+    LogDebug("Downloading large file with pausing/resuming.");
+    StorageListener listener;
+    firebase::storage::Controller controller;
+    firebase::Future<size_t> future =
+        ref.GetBytes(&buffer[0], kLargeFileSize, &listener, &controller);
+    ASSERT_TRUE(controller.is_valid());
+
+    ProcessEvents(500);
+    LogDebug("Pausing download.");
+    EXPECT_TRUE(controller.Pause()) << "Download pause";
+
+    WaitForCompletion(future, "GetBytes");
+    LogDebug("Download complete.");
+
+    // Ensure the progress and pause callbacks were called.
+    EXPECT_TRUE(listener.on_progress_was_called());
+    EXPECT_TRUE(listener.on_paused_was_called());
+
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kLargeFileSize)
+        << "Read size with pause/resume did not match";
+    EXPECT_TRUE(memcmp(kLargeTestFile.c_str(), &buffer[0], kLargeFileSize) == 0)
+        << "Read large file failed, contents did not match.";
+  }
+#else
+  {
+    // Test downloading large file (mobile only), without pausing, as mobile
+    // does not support pause during file download, only upload.
+    memset(&buffer[0], 0, kLargeFileSize);
+    LogDebug("Downloading large file.");
+    StorageListener listener;
+    firebase::storage::Controller controller;
+    firebase::Future<size_t> future =
+        ref.GetBytes(&buffer[0], kLargeFileSize, &listener, &controller);
+    ASSERT_TRUE(controller.is_valid());
+
+    WaitForCompletion(future, "GetBytes");
+    LogDebug("Download complete.");
+
+    // Ensure the progress callback was called.
+    EXPECT_TRUE(listener.on_progress_was_called());
+    EXPECT_FALSE(listener.on_paused_was_called());
+
+    ASSERT_NE(future.result(), nullptr);
+    size_t file_size = *future.result();
+    EXPECT_EQ(file_size, kLargeFileSize) << "Read size did not match";
+    EXPECT_TRUE(memcmp(kLargeTestFile.c_str(), &buffer[0], kLargeFileSize) == 0)
+        << "Read large file failed, contents did not match.";
+  }
+#endif  // FIREBASE_PLATFORM_DESKTOP
+
+  // Try canceling while downloading.
+  {
+    LogDebug("Downloading large file with cancellation.");
+    StorageListener listener;
+    firebase::storage::Controller controller;
+    firebase::Future<size_t> future =
+        ref.GetBytes(&buffer[0], kLargeFileSize, &listener, &controller);
+    ASSERT_TRUE(controller.is_valid());
+    ProcessEvents(500);
+    LogDebug("Cancelling download.");
+    EXPECT_TRUE(controller.Cancel());
+    WaitForCompletion(future, "GetBytes", firebase::storage::kErrorCancelled);
+  }
+}
+
+TEST_F(FirebaseStorageTest, TestLargeFileCancelUpload) {
+  SignIn();
+
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-LargeFileCancel.txt");
+
+  const size_t kLargeFileSize = kLargeFileMegabytes * 1024 * 1024;
+  const std::string kLargeTestFile = CreateDataForLargeFile(kLargeFileSize);
+  {
+    LogDebug("Write a large file and cancel mid-way.");
+    StorageListener listener;
+    firebase::storage::Controller controller;
+    firebase::Future<firebase::storage::Metadata> future = ref.PutBytes(
+        kLargeTestFile.c_str(), kLargeFileSize, &listener, &controller);
+
+    // Ensure the Controller is valid now that we have associated it with an
+    // operation.
+    ASSERT_TRUE(controller.is_valid());
+
+    ProcessEvents(500);
+
+    LogDebug("Cancelling upload.");
+    // Cancel the operation and verify it was successfully canceled.
+    EXPECT_TRUE(controller.Cancel());
+
+    WaitForCompletion(future, "PutBytes", firebase::storage::kErrorCancelled);
+  }
+}
+
+TEST_F(FirebaseStorageTest, TestInvalidatingReferencesWhenDeletingStorage) {
+  SignIn();
+
+  // Create a file so we can get its metadata and check that it's properly
+  // invalidated.
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-InvalidateReferencesDeletingStorage.txt");
+  // Don't clean up, will be manually deleted.
+
+  WaitForCompletion(ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size()),
+                    "PutBytes");
+  ASSERT_NE(ref.PutBytesLastResult().result(), nullptr);
+  firebase::storage::Metadata metadata = *ref.PutBytesLastResult().result();
+  WaitForCompletion(ref.Delete(), "Delete");
+
+  ASSERT_TRUE(ref.is_valid());
+  ASSERT_TRUE(metadata.is_valid());
+  delete storage_;
+  storage_ = nullptr;
+  EXPECT_FALSE(ref.is_valid());
+  EXPECT_FALSE(metadata.is_valid());
+}
+
+TEST_F(FirebaseStorageTest, TestInvalidatingReferencesWhenDeletingApp) {
+  SignIn();
+
+  // Create a file so we can get its metadata and check that it's properly
+  // invalidated.
+  firebase::storage::StorageReference ref =
+      CreateFolder().Child("TestFile-InvalidateReferencesDeletingApp.txt");
+  // Don't clean up, will be manually deleted.
+
+  WaitForCompletion(ref.PutBytes(&kSimpleTestFile[0], kSimpleTestFile.size()),
+                    "PutBytes");
+  ASSERT_NE(ref.PutBytesLastResult().result(), nullptr);
+  firebase::storage::Metadata metadata = *ref.PutBytesLastResult().result();
+  WaitForCompletion(ref.Delete(), "Delete");
+
+  ASSERT_TRUE(ref.is_valid());
+  ASSERT_TRUE(metadata.is_valid());
+  delete app_;
+  app_ = nullptr;
+  EXPECT_FALSE(ref.is_valid());
+  EXPECT_FALSE(metadata.is_valid());
+}
+
+}  // namespace firebase_testapp_automated
diff --git a/testing/sample_framework/src/android/android_app_framework.cc b/testing/sample_framework/src/android/android_app_framework.cc
new file mode 100644
index 0000000000..3971f0ce60
--- /dev/null
+++ b/testing/sample_framework/src/android/android_app_framework.cc
@@ -0,0 +1,560 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <android/log.h>
+#include <android_native_app_glue.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include <cassert>
+#include <cstdarg>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <string>
+#include <vector>
+
+#include "app_framework.h"  // NOLINT
+
+// This implementation is derived from http://github.com/google/fplutil
+
+// Number of seconds to delay after the app is finished before exiting.
+// (Plus a longer delay if the app returns an error code other than 0, to give
+// the user more time to see the errors.)
+const int kExitDelaySeconds = 10;
+const int kExitDelaySecondsIfError = 60;
+
+static struct android_app* g_app_state = nullptr;
+static bool g_destroy_requested = false;
+static bool g_started = false;
+static bool g_restarted = false;
+static pthread_mutex_t g_started_mutex;
+
+// Handle state changes from via native app glue.
+static void OnAppCmd(struct android_app* app, int32_t cmd) {
+  g_destroy_requested |= cmd == APP_CMD_DESTROY;
+}
+
+namespace app_framework {
+
+// Process events pending on the main thread.
+// Returns true when the app receives an event requesting exit.
+bool ProcessEvents(int msec) {
+  int looperId;
+  do {
+    struct android_poll_source* source = nullptr;
+    int events;
+    looperId = ALooper_pollAll(msec, nullptr, &events,
+                               reinterpret_cast<void**>(&source));
+    if (looperId >= 0 && source) {
+      source->process(g_app_state, source);
+    }
+  } while (looperId != ALOOPER_POLL_TIMEOUT && !g_destroy_requested &&
+           !g_restarted);
+  return g_destroy_requested | g_restarted;
+}
+
+std::string PathForResource() {
+  ANativeActivity* nativeActivity = g_app_state->activity;
+  std::string result(nativeActivity->internalDataPath);
+  return result + "/";
+}
+
+// Get the activity.
+jobject GetActivity() { return g_app_state->activity->clazz; }
+
+// Get the window context. For Android, it's a jobject pointing to the Activity.
+jobject GetWindowContext() { return g_app_state->activity->clazz; }
+
+// Find a class, attempting to load the class if it's not found.
+jclass FindClass(JNIEnv* env, jobject activity_object, const char* class_name) {
+  jclass class_object = env->FindClass(class_name);
+  if (env->ExceptionCheck()) {
+    env->ExceptionClear();
+    // If the class isn't found it's possible NativeActivity is being used by
+    // the application which means the class path is set to only load system
+    // classes.  The following falls back to loading the class using the
+    // Activity before retrieving a reference to it.
+    jclass activity_class = env->FindClass("android/app/Activity");
+    jmethodID activity_get_class_loader = env->GetMethodID(
+        activity_class, "getClassLoader", "()Ljava/lang/ClassLoader;");
+
+    jobject class_loader_object =
+        env->CallObjectMethod(activity_object, activity_get_class_loader);
+
+    jclass class_loader_class = env->FindClass("java/lang/ClassLoader");
+    jmethodID class_loader_load_class =
+        env->GetMethodID(class_loader_class, "loadClass",
+                         "(Ljava/lang/String;)Ljava/lang/Class;");
+    jstring class_name_object = env->NewStringUTF(class_name);
+
+    class_object = static_cast<jclass>(env->CallObjectMethod(
+        class_loader_object, class_loader_load_class, class_name_object));
+
+    if (env->ExceptionCheck()) {
+      env->ExceptionClear();
+      class_object = nullptr;
+    }
+    env->DeleteLocalRef(class_name_object);
+    env->DeleteLocalRef(class_loader_object);
+  }
+  return class_object;
+}
+
+// Vars that we need available for appending text to the log window:
+class LoggingUtilsData {
+ public:
+  LoggingUtilsData()
+      : logging_utils_class_(nullptr),
+        logging_utils_add_log_text_(0),
+        logging_utils_init_log_window_(0),
+        logging_utils_get_did_touch_(0) {}
+
+  ~LoggingUtilsData() {
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    if (logging_utils_class_) {
+      env->DeleteGlobalRef(logging_utils_class_);
+    }
+  }
+
+  void Init() {
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+
+    jclass logging_utils_class = FindClass(
+        env, GetActivity(), "com/google/firebase/example/LoggingUtils");
+    assert(logging_utils_class != 0);
+
+    // Need to store as global references so it don't get moved during garbage
+    // collection.
+    logging_utils_class_ =
+        static_cast<jclass>(env->NewGlobalRef(logging_utils_class));
+    env->DeleteLocalRef(logging_utils_class);
+
+    logging_utils_init_log_window_ = env->GetStaticMethodID(
+        logging_utils_class_, "initLogWindow", "(Landroid/app/Activity;)V");
+    logging_utils_add_log_text_ = env->GetStaticMethodID(
+        logging_utils_class_, "addLogText", "(Ljava/lang/String;)V");
+    logging_utils_get_did_touch_ =
+        env->GetStaticMethodID(logging_utils_class_, "getDidTouch", "()Z");
+    logging_utils_get_log_file_ = env->GetStaticMethodID(
+        logging_utils_class_, "getLogFile", "()Ljava/lang/String;");
+    logging_utils_start_log_file_ =
+        env->GetStaticMethodID(logging_utils_class_, "startLogFile",
+                               "(Landroid/app/Activity;Ljava/lang/String;)Z");
+
+    env->CallStaticVoidMethod(logging_utils_class_,
+                              logging_utils_init_log_window_, GetActivity());
+  }
+
+  void AppendText(const char* text) {
+    if (logging_utils_class_ == 0) return;  // haven't been initted yet
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    jstring text_string = env->NewStringUTF(text);
+    env->CallStaticVoidMethod(logging_utils_class_, logging_utils_add_log_text_,
+                              text_string);
+    env->DeleteLocalRef(text_string);
+  }
+
+  bool DidTouch() {
+    if (logging_utils_class_ == 0) return false;  // haven't been initted yet
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    return env->CallStaticBooleanMethod(logging_utils_class_,
+                                        logging_utils_get_did_touch_);
+  }
+
+  bool IsLoggingToFile() {
+    if (logging_utils_class_ == 0) return false;  // haven't been initted yet
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    jobject file_uri = env->CallStaticObjectMethod(logging_utils_class_,
+                                                   logging_utils_get_log_file_);
+    if (file_uri == nullptr) {
+      return false;
+    } else {
+      env->DeleteLocalRef(file_uri);
+      return true;
+    }
+  }
+
+  bool StartLoggingToFile(const char* path) {
+    if (logging_utils_class_ == 0) return false;  // haven't been initted yet
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    jstring path_string = env->NewStringUTF(path);
+    jboolean b = env->CallStaticBooleanMethod(logging_utils_class_,
+                                              logging_utils_start_log_file_,
+                                              GetActivity(), path_string);
+    env->DeleteLocalRef(path_string);
+    return b ? true : false;
+  }
+
+ private:
+  jclass logging_utils_class_;
+  jmethodID logging_utils_add_log_text_;
+  jmethodID logging_utils_init_log_window_;
+  jmethodID logging_utils_get_did_touch_;
+  jmethodID logging_utils_get_log_file_;
+  jmethodID logging_utils_start_log_file_;
+};
+
+LoggingUtilsData* g_logging_utils_data;
+
+// Checks if a JNI exception has happened, and if so, logs it to the console.
+void CheckJNIException() {
+  JNIEnv* env = GetJniEnv();
+  if (env->ExceptionCheck()) {
+    // Get the exception text.
+    jthrowable exception = env->ExceptionOccurred();
+    env->ExceptionClear();
+
+    // Convert the exception to a string.
+    jclass object_class = env->FindClass("java/lang/Object");
+    jmethodID toString =
+        env->GetMethodID(object_class, "toString", "()Ljava/lang/String;");
+    jstring s = (jstring)env->CallObjectMethod(exception, toString);
+    const char* exception_text = env->GetStringUTFChars(s, nullptr);
+
+    // Log the exception text.
+    __android_log_print(ANDROID_LOG_INFO, TESTAPP_NAME,
+                        "-------------------JNI exception:");
+    __android_log_print(ANDROID_LOG_INFO, TESTAPP_NAME, "%s", exception_text);
+    __android_log_print(ANDROID_LOG_INFO, TESTAPP_NAME, "-------------------");
+
+    // Also, assert fail.
+    assert(false);
+
+    // In the event we didn't assert fail, clean up.
+    env->ReleaseStringUTFChars(s, exception_text);
+    env->DeleteLocalRef(s);
+    env->DeleteLocalRef(exception);
+  }
+}
+
+// Log a message that can be viewed in "adb logcat".
+void LogMessageV(bool suppress, const char* format, va_list list) {
+  static const int kLineBufferSize = 1024;
+  char buffer[kLineBufferSize + 2];
+
+  int string_len = vsnprintf(buffer, kLineBufferSize, format, list);
+  string_len = string_len < kLineBufferSize ? string_len : kLineBufferSize;
+  // append a linebreak to the buffer:
+  buffer[string_len] = '\n';
+  buffer[string_len + 1] = '\0';
+
+  if (GetPreserveFullLog()) {
+    AddToFullLog(buffer);
+  }
+  if (!suppress) {
+    fputs(buffer, stdout);
+    fflush(stdout);
+  }
+}
+
+void LogMessage(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  LogMessageV(false, format, list);
+  va_end(list);
+}
+
+static bool g_save_full_log = false;
+static std::vector<std::string> g_full_logs;  // NOLINT
+
+void AddToFullLog(const char* str) { g_full_logs.push_back(std::string(str)); }
+
+bool GetPreserveFullLog() { return g_save_full_log; }
+void SetPreserveFullLog(bool b) { g_save_full_log = b; }
+
+void ClearFullLog() { g_full_logs.clear(); }
+
+void OutputFullLog() {
+  for (int i = 0; i < g_full_logs.size(); ++i) {
+    fputs(g_full_logs[i].c_str(), stdout);
+  }
+  fflush(stdout);
+  ClearFullLog();
+}
+
+// Log a message that can be viewed in the console.
+void AddToTextView(const char* str) {
+  app_framework::g_logging_utils_data->AppendText(str);
+  CheckJNIException();
+}
+
+// Get the JNI environment.
+JNIEnv* GetJniEnv() {
+  JavaVM* vm = g_app_state->activity->vm;
+  JNIEnv* env;
+  jint result = vm->AttachCurrentThread(&env, nullptr);
+  return result == JNI_OK ? env : nullptr;
+}
+
+bool IsLoggingToFile() {
+  return app_framework::g_logging_utils_data->IsLoggingToFile();
+}
+
+bool StartLoggingToFile(const char* path) {
+  return app_framework::g_logging_utils_data->StartLoggingToFile(path);
+}
+
+// Remove all lines starting with these strings.
+static const char* const filter_lines[] = {"referenceTable ", nullptr};
+
+bool should_filter(const char* str) {
+  for (int i = 0; filter_lines[i] != nullptr; ++i) {
+    if (strncmp(str, filter_lines[i], strlen(filter_lines[i])) == 0)
+      return true;
+  }
+  return false;
+}
+
+void* stdout_logger(void* filedes_ptr) {
+  int fd = reinterpret_cast<int*>(filedes_ptr)[0];
+  static std::string buffer;
+  char bufchar;
+  while (int n = read(fd, &bufchar, 1)) {
+    if (bufchar == '\0') {
+      break;
+    } else if (bufchar == '\n') {
+      if (!should_filter(buffer.c_str())) {
+        __android_log_print(ANDROID_LOG_INFO, TESTAPP_NAME, "%s",
+                            buffer.c_str());
+        buffer = buffer + bufchar;  // Add the newline
+        app_framework::AddToTextView(buffer.c_str());
+      }
+      buffer.clear();
+    } else {
+      buffer = buffer + bufchar;
+    }
+  }
+  JavaVM* jvm;
+  if (app_framework::GetJniEnv()->GetJavaVM(&jvm) == 0) {
+    jvm->DetachCurrentThread();
+  }
+  return nullptr;
+}
+
+struct FunctionData {
+  void* (*func)(void*);
+  void* data;
+};
+
+static void* CallFunction(void* bg_void) {
+  FunctionData* bg = reinterpret_cast<FunctionData*>(bg_void);
+  void* (*func)(void*) = bg->func;
+  void* data = bg->data;
+  // Clean up the data that was passed to us.
+  delete bg;
+  // Call the background function.
+  void* result = func(data);
+  // Then clean up the Java thread.
+  JavaVM* jvm;
+  if (app_framework::GetJniEnv()->GetJavaVM(&jvm) == 0) {
+    jvm->DetachCurrentThread();
+  }
+  return result;
+}
+
+void RunOnBackgroundThread(void* (*func)(void*), void* data) {
+  pthread_t thread;
+  // Rather than running pthread_create(func, data), we must package them into a
+  // struct, because the c++ thread needs to clean up the JNI thread after it
+  // finishes.
+  FunctionData* bg = new FunctionData;
+  bg->func = func;
+  bg->data = data;
+  pthread_create(&thread, nullptr, CallFunction, bg);
+  pthread_detach(thread);
+}
+
+// Vars that we need available for reading text from the user.
+class TextEntryFieldData {
+ public:
+  TextEntryFieldData()
+      : text_entry_field_class_(nullptr), text_entry_field_read_text_(0) {}
+
+  ~TextEntryFieldData() {
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    if (text_entry_field_class_) {
+      env->DeleteGlobalRef(text_entry_field_class_);
+    }
+  }
+
+  void Init() {
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+
+    jclass text_entry_field_class = FindClass(
+        env, GetActivity(), "com/google/firebase/example/TextEntryField");
+    if (text_entry_field_class == 0) {
+      // No text entry allowed in this testapp, the Java class is not loaded.
+      return;
+    }
+
+    // Need to store as global references so it don't get moved during garbage
+    // collection.
+    text_entry_field_class_ =
+        static_cast<jclass>(env->NewGlobalRef(text_entry_field_class));
+    env->DeleteLocalRef(text_entry_field_class);
+
+    static const JNINativeMethod kNativeMethods[] = {
+        {"nativeSleep", "(I)Z", reinterpret_cast<void*>(ProcessEvents)}};
+    env->RegisterNatives(text_entry_field_class_, kNativeMethods,
+                         sizeof(kNativeMethods) / sizeof(kNativeMethods[0]));
+    text_entry_field_read_text_ = env->GetStaticMethodID(
+        text_entry_field_class_, "readText",
+        "(Landroid/app/Activity;Ljava/lang/String;Ljava/lang/String;"
+        "Ljava/lang/String;)Ljava/lang/String;");
+  }
+
+  // Call TextEntryField.readText(), which shows a text entry dialog and spins
+  // until the user enters some text (or cancels). If the user cancels, returns
+  // an empty string.
+  std::string ReadText(const char* title, const char* message,
+                       const char* placeholder) {
+    if (text_entry_field_class_ == 0) {
+      LogMessage(
+          "ERROR: ReadText() failed, no TextEntryField Java class is loaded.");
+      return "";  // Haven't been initialized.
+    }
+    JNIEnv* env = GetJniEnv();
+    assert(env);
+    jstring title_string = env->NewStringUTF(title);
+    jstring message_string = env->NewStringUTF(message);
+    jstring placeholder_string = env->NewStringUTF(placeholder);
+    jobject result_string = env->CallStaticObjectMethod(
+        text_entry_field_class_, text_entry_field_read_text_, GetActivity(),
+        title_string, message_string, placeholder_string);
+    env->DeleteLocalRef(title_string);
+    env->DeleteLocalRef(message_string);
+    env->DeleteLocalRef(placeholder_string);
+    if (env->ExceptionCheck()) {
+      env->ExceptionDescribe();
+      env->ExceptionClear();
+    }
+    if (result_string == nullptr) {
+      // Check if readText() returned null, which will be the case if an
+      // exception occurred or if TextEntryField returned null for some reason.
+      return "";
+    }
+    const char* result_buffer =
+        env->GetStringUTFChars(static_cast<jstring>(result_string), 0);
+    std::string result(result_buffer);
+    env->ReleaseStringUTFChars(static_cast<jstring>(result_string),
+                               result_buffer);
+    return result;
+  }
+
+ private:
+  jclass text_entry_field_class_;
+  jmethodID text_entry_field_read_text_;
+};
+
+TextEntryFieldData* g_text_entry_field_data;
+
+// Use a Java class, TextEntryField, to prompt the user to enter some text.
+// This function blocks until text was entered or the dialog was canceled.
+// If the user cancels, returns an empty string.
+std::string ReadTextInput(const char* title, const char* message,
+                          const char* placeholder) {
+  assert(g_text_entry_field_data);
+  return g_text_entry_field_data->ReadText(title, message, placeholder);
+}
+
+}  // namespace app_framework
+
+// Execute common_main(), flush pending events and finish the activity.
+extern "C" void android_main(struct android_app* state) {
+  // native_app_glue spawns a new thread, calling android_main() when the
+  // activity onStart() or onRestart() methods are called.  This code handles
+  // the case where we're re-entering this method on a different thread by
+  // signalling the existing thread to exit, waiting for it to complete before
+  // reinitializing the application.
+  if (g_started) {
+    g_restarted = true;
+    // Wait for the existing thread to exit.
+    pthread_mutex_lock(&g_started_mutex);
+    pthread_mutex_unlock(&g_started_mutex);
+  } else {
+    g_started_mutex = PTHREAD_MUTEX_INITIALIZER;
+  }
+  pthread_mutex_lock(&g_started_mutex);
+  g_started = true;
+
+  // Save native app glue state and setup a callback to track the state.
+  g_destroy_requested = false;
+  g_app_state = state;
+  g_app_state->onAppCmd = OnAppCmd;
+
+  // Create the logging display.
+  app_framework::g_logging_utils_data = new app_framework::LoggingUtilsData();
+  app_framework::g_logging_utils_data->Init();
+
+  // Create the text entry dialog.
+  app_framework::g_text_entry_field_data =
+      new app_framework::TextEntryFieldData();
+  app_framework::g_text_entry_field_data->Init();
+
+  // Pipe stdout to AddToTextView so we get the gtest output.
+  int filedes[2];
+  assert(pipe(filedes) != -1);
+  assert(dup2(filedes[1], STDOUT_FILENO) != -1);
+  pthread_t thread;
+  pthread_create(&thread, nullptr, app_framework::stdout_logger,
+                 reinterpret_cast<void*>(filedes));
+
+  // Execute cross platform entry point.
+  // Copy the app name into a non-const array, as googletest requires that
+  // main() take non-const char* argv[] so it can modify the arguments.
+  char* argv[1];
+  argv[0] = new char[strlen(TESTAPP_NAME) + 1];
+  strcpy(argv[0], TESTAPP_NAME);  // NOLINT
+  int return_value = common_main(1, argv);
+  delete[] argv[0];
+  argv[0] = nullptr;
+
+  app_framework::ProcessEvents(10);
+
+  // Signal to stdout_logger to exit.
+  write(filedes[1], "\0", 1);
+  pthread_join(thread, nullptr);
+  close(filedes[0]);
+  close(filedes[1]);
+  // Pause a few seconds so you can see the results. If the user touches
+  // the screen during that time, don't exit until they choose to.
+  bool should_exit = false;
+  int exit_delay_seconds =
+      return_value ? kExitDelaySecondsIfError : kExitDelaySeconds;
+  do {
+    should_exit = app_framework::ProcessEvents(exit_delay_seconds * 1000);
+  } while (app_framework::g_logging_utils_data->DidTouch() && !should_exit);
+
+  // Clean up logging display.
+  delete app_framework::g_logging_utils_data;
+  app_framework::g_logging_utils_data = nullptr;
+
+  // Finish the activity.
+  if (!g_restarted) ANativeActivity_finish(state->activity);
+
+  g_app_state->activity->vm->DetachCurrentThread();
+  g_started = false;
+  g_restarted = false;
+  pthread_mutex_unlock(&g_started_mutex);
+}
diff --git a/testing/sample_framework/src/android/java/com/google/firebase/example/LoggingUtils.java b/testing/sample_framework/src/android/java/com/google/firebase/example/LoggingUtils.java
new file mode 100644
index 0000000000..4ff20e8965
--- /dev/null
+++ b/testing/sample_framework/src/android/java/com/google/firebase/example/LoggingUtils.java
@@ -0,0 +1,169 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.firebase.example;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.graphics.Typeface;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Looper;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.Window;
+import android.widget.LinearLayout;
+import android.widget.ScrollView;
+import android.widget.TextView;
+import java.io.DataOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/**
+ * A utility class, encapsulating the data and methods required to log arbitrary
+ * text to the screen, via a non-editable TextView.
+ */
+public class LoggingUtils {
+  private static TextView textView = null;
+  private static ScrollView scrollView = null;
+  // Tracks if the log window was touched at least once since the testapp was started.
+  private static boolean didTouch = false;
+  // If a test log file is specified, this is the log file's URI...
+  private static Uri logFile = null;
+  // ...and this is the stream to write to.
+  private static DataOutputStream logFileStream = null;
+
+  /** Initializes the log window with the given activity and a monospace font. */
+  public static void initLogWindow(Activity activity) {
+    initLogWindow(activity, true);
+  }
+
+  /**
+   * Initializes the log window with the given activity, specifying whether to use a monospaced
+   * font.
+   */
+  public static void initLogWindow(Activity activity, boolean monospace) {
+    LinearLayout linearLayout = new LinearLayout(activity);
+    scrollView = new ScrollView(activity);
+    textView = new TextView(activity);
+    textView.setTag("Logger");
+    if (monospace) {
+      textView.setTypeface(Typeface.MONOSPACE);
+      textView.setTextSize(10);
+    }
+    linearLayout.addView(scrollView);
+    scrollView.addView(textView);
+    Window window = activity.getWindow();
+    window.takeSurface(null);
+    window.setContentView(linearLayout);
+
+    // Force the TextView to stay scrolled to the bottom.
+    textView.addTextChangedListener(
+        new TextWatcher() {
+          @Override
+          public void afterTextChanged(Editable e) {
+            // If the user never interacted with the screen, scroll to bottom.
+            if (scrollView != null && !didTouch) {
+              new Handler(Looper.getMainLooper())
+                  .post(
+                      new Runnable() {
+                        @Override
+                        public void run() {
+                          scrollView.fullScroll(View.FOCUS_DOWN);
+                        }
+                      });
+            }
+          }
+
+          @Override
+          public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+          @Override
+          public void onTextChanged(CharSequence s, int start, int count, int after) {}
+        });
+    textView.setOnTouchListener(
+        new View.OnTouchListener() {
+          @Override
+          public boolean onTouch(View v, MotionEvent event) {
+            didTouch = true;
+            return false;
+          }
+        });
+
+    Intent launchIntent = activity.getIntent();
+    // Check if we are running on Firebase Test Lab, and set up a log file if we are.
+    if (launchIntent.getAction().equals("com.google.intent.action.TEST_LOOP")) {
+      startLogFile(activity, launchIntent.getData().toString());
+    }
+  }
+
+  /** Adds some text to the log window. */
+  public static void addLogText(final String text) {
+    new Handler(Looper.getMainLooper())
+        .post(
+            new Runnable() {
+              @Override
+              public void run() {
+                if (textView != null) {
+                  textView.append(text);
+                  if (logFileStream != null) {
+                    try {
+                      logFileStream.writeBytes(text);
+                    } catch (IOException e) {
+                      // It doesn't really matter if something went wrong writing to the test log.
+                    }
+                  }
+                }
+              }
+            });
+  }
+
+  /**
+   * Returns true if the user ever touched the log window during this run (to scroll it or
+   * otherwise), false if they never have.
+   */
+  public static boolean getDidTouch() {
+    return didTouch;
+  }
+
+  /** Start logging to a file at the given URI string. Used in TEST_LOOP mode. */
+  public static boolean startLogFile(Activity activity, String logFileUri) {
+    logFile = Uri.parse(logFileUri);
+    if (logFile != null) {
+      try {
+        logFileStream =
+            new DataOutputStream(activity.getContentResolver().openOutputStream(logFile));
+      } catch (FileNotFoundException e) {
+        addLogText("Failed to open log file " + logFile.getEncodedPath() + ": " + e);
+        return false;
+      }
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * If the logger is logging to a file in local storage, return the URI for that file (which you
+   * can later pass into startLogFile in the future), otherwise return null if not logging to file.
+   */
+  public static String getLogFile() {
+    if (logFile != null && logFileStream != null) {
+      return logFile.toString();
+    } else {
+      return null;
+    }
+  }
+}
diff --git a/testing/sample_framework/src/android/java/com/google/firebase/example/TextEntryField.java b/testing/sample_framework/src/android/java/com/google/firebase/example/TextEntryField.java
new file mode 100644
index 0000000000..34c59fa55d
--- /dev/null
+++ b/testing/sample_framework/src/android/java/com/google/firebase/example/TextEntryField.java
@@ -0,0 +1,106 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.firebase.example;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.widget.EditText;
+
+/**
+ * A utility class, with a method to prompt the user to enter a line of text, and a native method to
+ * sleep for a given number of milliseconds.
+ */
+public class TextEntryField {
+  private static Object lock = new Object();
+  private static String resultText = null;
+
+  /**
+   * Prompt the user with a text field, blocking until the user fills it out, then returns the text
+   * they entered. If the user cancels, returns an empty string.
+   */
+  public static String readText(
+      final Activity activity, final String title, final String message, final String placeholder) {
+    resultText = null;
+    // Show the alert dialog on the main thread.
+    activity.runOnUiThread(
+        new Runnable() {
+          @Override
+          public void run() {
+            AlertDialog.Builder alertBuilder = new AlertDialog.Builder(activity);
+            alertBuilder.setTitle(title);
+            alertBuilder.setMessage(message);
+
+            // Set up and add the text field.
+            final EditText textField = new EditText(activity);
+            textField.setHint(placeholder);
+            alertBuilder.setView(textField);
+
+            alertBuilder.setPositiveButton(
+                "OK",
+                new DialogInterface.OnClickListener() {
+                  @Override
+                  public void onClick(DialogInterface dialog, int whichButton) {
+                    synchronized (lock) {
+                      resultText = textField.getText().toString();
+                    }
+                  }
+                });
+
+            alertBuilder.setNegativeButton(
+                "Cancel",
+                new DialogInterface.OnClickListener() {
+                  @Override
+                  public void onClick(DialogInterface dialog, int whichButton) {
+                    synchronized (lock) {
+                      resultText = "";
+                    }
+                  }
+                });
+
+            alertBuilder.setOnCancelListener(
+                new DialogInterface.OnCancelListener() {
+                  @Override
+                  public void onCancel(DialogInterface dialog) {
+                    synchronized (lock) {
+                      resultText = "";
+                    }
+                  }
+                });
+            alertBuilder.show();
+          }
+        });
+
+    // In our original thread, wait for the dialog to finish, then return its result.
+    while (true) {
+      // Pause a second, waiting for the user to enter text.
+      if (nativeSleep(1000)) {
+        // If this returns true, an exit was requested.
+        return "";
+      }
+      synchronized (lock) {
+        if (resultText != null) {
+          // resultText will be set to non-null when a dialog button is clicked, or the dialog
+          // is canceled.
+          String result = resultText;
+          resultText = null; // Consume the result.
+          return result;
+        }
+      }
+    }
+  }
+
+  private static native boolean nativeSleep(int milliseconds);
+}
diff --git a/testing/sample_framework/src/app_framework.cc b/testing/sample_framework/src/app_framework.cc
new file mode 100644
index 0000000000..bed0d01526
--- /dev/null
+++ b/testing/sample_framework/src/app_framework.cc
@@ -0,0 +1,96 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "app_framework.h"  // NOLINT
+
+#include <inttypes.h>
+#include <sys/stat.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+
+namespace app_framework {
+
+// Base logging methods, implemented by platform-specific files.
+void LogMessage(const char* format, ...);
+void LogMessageV(bool filtered, const char* format, va_list list);
+
+enum LogLevel g_log_level = kInfo;
+
+void SetLogLevel(LogLevel log_level) { g_log_level = log_level; }
+
+LogLevel GetLogLevel() { return g_log_level; }
+
+void LogDebug(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  std::string format_str("DEBUG: ");
+  format_str += format;
+  app_framework::LogMessageV(g_log_level > kDebug, format_str.c_str(), list);
+  va_end(list);
+}
+
+void LogInfo(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  std::string format_str("INFO: ");
+  format_str += format;
+  app_framework::LogMessageV(g_log_level > kInfo, format_str.c_str(), list);
+  va_end(list);
+}
+
+void LogWarning(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  std::string format_str("WARNING: ");
+  format_str += format;
+  app_framework::LogMessageV(g_log_level > kWarning, format_str.c_str(), list);
+  va_end(list);
+}
+
+void LogError(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  std::string format_str("ERROR: ");
+  format_str += format;
+  app_framework::LogMessageV(g_log_level > kError, format_str.c_str(), list);
+  va_end(list);
+}
+
+#if !defined(_WIN32)  // Windows requires its own version of time-handling code.
+int64_t GetCurrentTimeInMicroseconds() {
+  struct timeval now;
+  gettimeofday(&now, nullptr);
+  return now.tv_sec * 1000000LL + now.tv_usec;
+}
+#endif  // !defined(_WIN32)
+
+#if defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+void ChangeToFileDirectory(const char*) {}
+#endif  // defined(__ANDROID__) || (defined(TARGET_OS_IPHONE) &&
+        // TARGET_OS_IPHONE)
+
+#if defined(_WIN32)
+#define stat _stat
+#endif  // defined(_WIN32)
+
+bool FileExists(const char* file_path) {
+  struct stat s;
+  return stat(file_path, &s) == 0;
+}
+
+}  // namespace app_framework
diff --git a/testing/sample_framework/src/app_framework.h b/testing/sample_framework/src/app_framework.h
new file mode 100644
index 0000000000..580b3bd939
--- /dev/null
+++ b/testing/sample_framework/src/app_framework.h
@@ -0,0 +1,131 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef APP_FRAMEWORK_H_  // NOLINT
+#define APP_FRAMEWORK_H_  // NOLINT
+
+#include <cstdarg>
+#include <string>
+
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif  // defined(__APPLE__)
+
+#if !defined(_WIN32)
+#include <sys/time.h>
+#endif
+#if defined(__ANDROID__)
+#include <android/native_activity.h>
+#include <jni.h>
+#elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+extern "C" {
+#include <objc/objc.h>
+}  // extern "C"
+#endif  // platforms
+
+// Defined using -DTESTAPP_NAME=some_app_name when compiling this
+// file.
+#ifndef TESTAPP_NAME
+#define TESTAPP_NAME "android_main"
+#endif  // TESTAPP_NAME
+
+extern "C" int common_main(int argc, char* argv[]);
+
+namespace app_framework {
+
+// Platform-independent logging methods.
+enum LogLevel { kDebug = 0, kInfo, kWarning, kError };
+void SetLogLevel(LogLevel log_level);
+LogLevel GetLogLevel();
+void LogError(const char* format, ...);
+void LogWarning(const char* format, ...);
+void LogInfo(const char* format, ...);
+void LogDebug(const char* format, ...);
+
+// Set this to true to have all log messages saved regardless of loglevel; you
+// can output them later via OutputFullLog or clear them via ClearFullLog.
+void SetPreserveFullLog(bool b);
+// Get the value previously set by SetPreserveFullLog.
+bool GetPreserveFullLog();
+
+// Add a line of text to the "full log" to be output via OutputFullLog.
+void AddToFullLog(const char* str);
+
+// Clear the logs that were saved.
+void ClearFullLog();
+
+// Output the full saved logs (if you SetPreserveFullLog(true) earlier).
+void OutputFullLog();
+
+// Platform-independent method to flush pending events for the main thread.
+// Returns true when an event requesting program-exit is received.
+bool ProcessEvents(int msec);
+
+// Returns a path to a writable directory for the given platform.
+std::string PathForResource();
+
+// Returns the number of microseconds since the epoch.
+int64_t GetCurrentTimeInMicroseconds();
+
+// On desktop, change the current working directory to the directory
+// containing the specified file. On mobile, this is a no-op.
+void ChangeToFileDirectory(const char* file_path);
+
+// Return whether the file exists.
+bool FileExists(const char* file_path);
+
+// WindowContext represents the handle to the parent window. Its type
+// (and usage) vary based on the OS.
+#if defined(__ANDROID__)
+typedef jobject WindowContext;  // A jobject to the Java Activity.
+#elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+typedef id WindowContext;  // A pointer to an iOS UIView.
+#else
+typedef void* WindowContext;  // A void* for any other environments.
+#endif
+
+#if defined(__ANDROID__)
+// Get the JNI environment.
+JNIEnv* GetJniEnv();
+// Get the activity.
+jobject GetActivity();
+// Find a class, attempting to load the class if it's not found.
+jclass FindClass(JNIEnv* env, jobject activity_object, const char* class_name);
+#endif  // defined(__ANDROID__)
+
+// Returns true if the logger is currently logging to a file.
+bool IsLoggingToFile();
+
+// Start logging to the given file. You only need to do this if the app has been
+// restarted since it was initially run in test loop mode.
+bool StartLoggingToFile(const char* path);
+
+// Returns a variable that describes the window context for the app. On Android
+// this will be a jobject pointing to the Activity. On iOS, it's an id pointing
+// to the root view of the view controller.
+WindowContext GetWindowContext();
+
+// Run the given function on a detached background thread.
+void RunOnBackgroundThread(void* (*func)(void* data), void* data);
+
+// Prompt the user with a dialog box to enter a line of text, blocking
+// until the user enters the text or the dialog box is canceled.
+// Returns the text that was entered, or an empty string if the user
+// canceled.
+std::string ReadTextInput(const char* title, const char* message,
+                          const char* placeholder);
+
+}  // namespace app_framework
+
+#endif  // APP_FRAMEWORK_H_  // NOLINT
diff --git a/testing/sample_framework/src/desktop/desktop_app_framework.cc b/testing/sample_framework/src/desktop/desktop_app_framework.cc
new file mode 100644
index 0000000000..115ad2bce2
--- /dev/null
+++ b/testing/sample_framework/src/desktop/desktop_app_framework.cc
@@ -0,0 +1,215 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include <algorithm>
+#include <cstring>
+#include <iostream>
+#include <string>
+#include <thread>  // NOLINT
+#include <vector>
+
+#ifdef _WIN32
+#include <direct.h>
+#define chdir _chdir
+#else
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#endif  // _WIN32
+
+#ifdef _WIN32
+#include <windows.h>
+#endif  // _WIN32
+
+#include "app_framework.h"  // NOLINT
+
+static bool quit = false;
+
+#ifdef _WIN32
+static BOOL WINAPI SignalHandler(DWORD event) {
+  if (!(event == CTRL_C_EVENT || event == CTRL_BREAK_EVENT)) {
+    return FALSE;
+  }
+  quit = true;
+  return TRUE;
+}
+#else
+static void SignalHandler(int /* ignored */) { quit = true; }
+#endif  // _WIN32
+
+namespace app_framework {
+
+bool ProcessEvents(int msec) {
+#ifdef _WIN32
+  Sleep(msec);
+#else
+  usleep(msec * 1000);
+#endif  // _WIN32
+  return quit;
+}
+
+std::string PathForResource() {
+#if defined(_WIN32)
+  // On Windows we should hvae TEST_TMPDIR or TEMP or TMP set.
+  char buf[MAX_PATH + 1];
+  if (GetEnvironmentVariable("TEST_TMPDIR", buf, sizeof(buf)) ||
+      GetEnvironmentVariable("TEMP", buf, sizeof(buf)) ||
+      GetEnvironmentVariable("TMP", buf, sizeof(buf))) {
+    std::string path(buf);
+    // Add trailing slash.
+    if (path[path.size() - 1] != '\\') path += '\\';
+    return path;
+  }
+#else
+  // Linux and OS X should either have the TEST_TMPDIR environment variable set
+  // or use /tmp.
+  if (const char* value = getenv("TEST_TMPDIR")) {
+    std::string path(value);
+    // Add trailing slash.
+    if (path[path.size() - 1] != '/') path += '/';
+    return path;
+  }
+  struct stat s;
+  if (stat("/tmp", &s) == 0) {
+    if (s.st_mode & S_IFDIR) {
+      return std::string("/tmp/");
+    }
+  }
+#endif  // defined(_WIN32)
+  // If nothing else, use the current directory.
+  return std::string();
+}
+void LogMessageV(bool suppress, const char* format, va_list list) {
+  // Save the log to the g_full_logs list regardless of whether it should be
+  // suppressed.
+  static const int kLineBufferSize = 1024;
+  char buffer[kLineBufferSize + 2];
+  int string_len = vsnprintf(buffer, kLineBufferSize, format, list);
+  string_len = string_len < kLineBufferSize ? string_len : kLineBufferSize;
+  // Append a linebreak to the buffer.
+  buffer[string_len] = '\n';
+  buffer[string_len + 1] = '\0';
+  if (GetPreserveFullLog()) {
+    AddToFullLog(buffer);
+  }
+  if (!suppress) {
+    fputs(buffer, stdout);
+    fflush(stdout);
+  }
+}
+
+void LogMessage(const char* format, ...) {
+  va_list list;
+  va_start(list, format);
+  LogMessageV(false, format, list);
+  va_end(list);
+}
+
+static bool g_save_full_log = false;
+static std::vector<std::string> g_full_logs;  // NOLINT
+
+void AddToFullLog(const char* str) { g_full_logs.push_back(std::string(str)); }
+
+bool GetPreserveFullLog() { return g_save_full_log; }
+void SetPreserveFullLog(bool b) { g_save_full_log = b; }
+
+void ClearFullLog() { g_full_logs.clear(); }
+
+void OutputFullLog() {
+  for (int i = 0; i < g_full_logs.size(); ++i) {
+    fputs(g_full_logs[i].c_str(), stdout);
+  }
+  fflush(stdout);
+  ClearFullLog();
+}
+
+WindowContext GetWindowContext() { return nullptr; }
+
+// Change the current working directory to the directory containing the
+// specified file.
+void ChangeToFileDirectory(const char* file_path) {
+  std::string path(file_path);
+  std::replace(path.begin(), path.end(), '\\', '/');
+  auto slash = path.rfind('/');
+  if (slash != std::string::npos) {
+    std::string directory = path.substr(0, slash);
+    if (!directory.empty()) {
+      LogDebug("chdir %s", directory.c_str());
+      chdir(directory.c_str());
+    }
+  }
+}
+
+#if defined(_WIN32)  // The other platforms are implemented in app_framework.cc.
+// Returns the number of microseconds since the epoch.
+int64_t GetCurrentTimeInMicroseconds() {
+  FILETIME file_time;
+  GetSystemTimeAsFileTime(&file_time);
+
+  ULARGE_INTEGER now;
+  now.LowPart = file_time.dwLowDateTime;
+  now.HighPart = file_time.dwHighDateTime;
+
+  // Windows file time is expressed in 100s of nanoseconds.
+  // To convert to microseconds, multiply x10.
+  return now.QuadPart * 10LL;
+}
+#endif  // defined(_WIN32)
+
+void RunOnBackgroundThread(void* (*func)(void*), void* data) {
+  // On desktop, use std::thread as Windows doesn't support pthreads.
+  std::thread thread(func, data);
+  thread.detach();
+}
+
+std::string ReadTextInput(const char* title, const char* message,
+                          const char* placeholder) {
+  if (title && *title) {
+    int len = strlen(title);
+    printf("\n");
+    for (int i = 0; i < len; ++i) {
+      printf("=");
+    }
+    printf("\n%s\n", title);
+    for (int i = 0; i < len; ++i) {
+      printf("=");
+    }
+  }
+  printf("\n%s", message);
+  if (placeholder && *placeholder) {
+    printf(" [%s]", placeholder);
+  }
+  printf(": ");
+  fflush(stdout);
+  std::string input_line;
+  std::getline(std::cin, input_line);
+  return input_line.empty() ? std::string(placeholder) : input_line;
+}
+
+bool IsLoggingToFile() { return false; }
+
+}  // namespace app_framework
+
+int main(int argc, char* argv[]) {
+#ifdef _WIN32
+  SetConsoleCtrlHandler((PHANDLER_ROUTINE)SignalHandler, TRUE);
+#else
+  signal(SIGINT, SignalHandler);
+#endif  // _WIN32
+  return common_main(argc, argv);
+}
diff --git a/testing/sample_framework/src/ios/ios_app_framework.mm b/testing/sample_framework/src/ios/ios_app_framework.mm
new file mode 100755
index 0000000000..2710c1f544
--- /dev/null
+++ b/testing/sample_framework/src/ios/ios_app_framework.mm
@@ -0,0 +1,346 @@
+// Copyright 2016 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <UIKit/UIKit.h>
+
+#include <pthread.h>
+#include <unistd.h>
+
+#include <cassert>
+#include <cstdarg>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <vector>
+#include <string>
+
+#include "app_framework.h"
+
+@interface AppDelegate : UIResponder<UIApplicationDelegate>
+
+@property(nonatomic, strong) UIWindow *window;
+
+@end
+
+@interface FTAViewController : UIViewController
+
+@property(atomic, strong) NSString *textEntryResult;
+
+@end
+
+static NSString * const kGameLoopUrlPrefix= @"firebase-game-loop";
+static NSString * const kGameLoopCompleteUrlScheme= @"firebase-game-loop-complete://";
+static const float kGameLoopSecondsToPauseBeforeQuitting = 5.0f;
+
+// Test Loop on iOS doesn't provide the app under test a path to save logs to, so set it here.
+#define GAMELOOP_DEFAULT_LOG_FILE "Results1.json"
+
+static int g_exit_status = 0;
+static bool g_shutdown = false;
+static NSCondition *g_shutdown_complete;
+static NSCondition *g_shutdown_signal;
+static UITextView *g_text_view;
+static UIView *g_parent_view;
+static FTAViewController *g_view_controller;
+static bool g_gameloop_launch = false;
+static NSURL *g_results_url;
+static NSString *g_file_name;
+static NSString *g_file_url_path;
+
+@implementation FTAViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+  g_parent_view = self.view;
+  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+    // Copy the app name into a non-const array, as googletest requires that
+    // main() take non-const char* argv[] so it can modify the arguments.
+    char *argv[1];
+    argv[0] = new char[strlen(TESTAPP_NAME) + 1];
+    strcpy(argv[0], TESTAPP_NAME);  // NOLINT
+    [g_shutdown_signal lock];
+    g_exit_status = common_main(1, argv);
+    [g_shutdown_complete signal];
+    delete[] argv[0];
+    argv[0] = nullptr;
+    [NSThread sleepForTimeInterval:kGameLoopSecondsToPauseBeforeQuitting];
+    [UIApplication.sharedApplication openURL:[NSURL URLWithString:kGameLoopCompleteUrlScheme]
+                                     options:[NSDictionary dictionary]
+                           completionHandler:nil];
+
+  });
+}
+
+@end
+namespace app_framework {
+
+bool ProcessEvents(int msec) {
+  [g_shutdown_signal
+      waitUntilDate:[NSDate dateWithTimeIntervalSinceNow:static_cast<float>(msec) / 1000.0f]];
+  return g_shutdown;
+}
+
+std::string PathForResource() {
+  NSArray<NSString *> *paths =
+      NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+  NSString *documentsDirectory = paths.firstObject;
+  // Force a trailing slash by removing any that exists, then appending another.
+  return std::string(
+      [[documentsDirectory stringByStandardizingPath] stringByAppendingString:@"/"].UTF8String);
+}
+
+WindowContext GetWindowContext() {
+  return g_parent_view;
+}
+
+// Log a message that can be viewed in the console.
+void LogMessageV(bool suppress, const char *format, va_list list) {
+  NSString *formatString = @(format);
+
+  NSString *message = [[NSString alloc] initWithFormat:formatString arguments:list];
+  message = [message stringByAppendingString:@"\n"];
+
+  if (GetPreserveFullLog()) {
+    AddToFullLog(message.UTF8String);
+  }
+  if (!suppress) {
+    fputs(message.UTF8String, stdout);
+    fflush(stdout);
+  }
+}
+
+void LogMessage(const char *format, ...) {
+  va_list list;
+  va_start(list, format);
+  LogMessageV(false, format, list);
+  va_end(list);
+}
+
+static bool g_save_full_log = false;
+static std::vector<std::string> g_full_logs;  // NOLINT
+
+void AddToFullLog(const char* str) { g_full_logs.push_back(std::string(str)); }
+
+bool GetPreserveFullLog() { return g_save_full_log; }
+void SetPreserveFullLog(bool b) { g_save_full_log = b; }
+
+void ClearFullLog() { g_full_logs.clear(); }
+
+void OutputFullLog() {
+  for (int i = 0; i < g_full_logs.size(); ++i) {
+    fputs(g_full_logs[i].c_str(), stdout);
+  }
+  fflush(stdout);
+  ClearFullLog();
+}
+
+// Log a message that can be viewed in the console.
+void AddToTextView(const char *str) {
+  NSString *message = @(str);
+
+  dispatch_async(dispatch_get_main_queue(), ^{
+    g_text_view.text = [g_text_view.text stringByAppendingString:message];
+    NSRange range = NSMakeRange(g_text_view.text.length, 0);
+    [g_text_view scrollRangeToVisible:range];
+  });
+  if (g_gameloop_launch) {
+    NSData *data = [message dataUsingEncoding:NSUTF8StringEncoding];
+    if ([NSFileManager.defaultManager fileExistsAtPath:g_file_url_path]) {
+      NSFileHandle *fileHandler = [NSFileHandle fileHandleForUpdatingAtPath:g_file_url_path];
+      [fileHandler seekToEndOfFile];
+      [fileHandler writeData:data];
+      [fileHandler closeFile];
+    } else {
+      NSLog(@"Write to file %@", g_file_url_path);
+      [data writeToFile:g_file_url_path atomically:YES];
+    }
+  }
+
+}
+
+// Remove all lines starting with these strings.
+static const char *const filter_lines[] = {nullptr};
+
+bool should_filter(const char *str) {
+  for (int i = 0; filter_lines[i] != nullptr; ++i) {
+    if (strncmp(str, filter_lines[i], strlen(filter_lines[i])) == 0) return true;
+  }
+  return false;
+}
+
+void *stdout_logger(void *filedes_ptr) {
+  int fd = reinterpret_cast<int *>(filedes_ptr)[0];
+  std::string buffer;
+  char bufchar;
+  while (int n = read(fd, &bufchar, 1)) {
+    if (bufchar == '\0') {
+      break;
+    } else if (bufchar == '\n') {
+      if (!should_filter(buffer.c_str())) {
+        NSLog(@"%s", buffer.c_str());
+        buffer = buffer + bufchar;  // Add the newline
+        app_framework::AddToTextView(buffer.c_str());
+      }
+      buffer.clear();
+    } else {
+      buffer = buffer + bufchar;
+    }
+  }
+  return nullptr;
+}
+
+void RunOnBackgroundThread(void* (*func)(void*), void* data) {
+  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+      func(data);
+    });
+}
+
+// Create an alert dialog via UIAlertController, and prompt the user to enter a line of text.
+// This function spins until the text has been entered (or the alert dialog was canceled).
+// If the user cancels, returns an empty string.
+std::string ReadTextInput(const char *title, const char *message, const char *placeholder) {
+  assert(g_view_controller);
+  // This should only be called from a background thread, as it blocks, which will mess up the main
+  // thread.
+  assert(![NSThread isMainThread]);
+
+  g_view_controller.textEntryResult = nil;
+
+  dispatch_async(dispatch_get_main_queue(), ^{
+    UIAlertController *alertController =
+        [UIAlertController alertControllerWithTitle:@(title)
+                                            message:@(message)
+                                     preferredStyle:UIAlertControllerStyleAlert];
+    [alertController addTextFieldWithConfigurationHandler:^(UITextField *_Nonnull textField) {
+      textField.placeholder = @(placeholder);
+    }];
+    UIAlertAction *confirmAction = [UIAlertAction
+        actionWithTitle:@"OK"
+                  style:UIAlertActionStyleDefault
+                handler:^(UIAlertAction *_Nonnull action) {
+                  g_view_controller.textEntryResult = alertController.textFields.firstObject.text;
+                }];
+    [alertController addAction:confirmAction];
+    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel"
+                                                           style:UIAlertActionStyleCancel
+                                                         handler:^(UIAlertAction *_Nonnull action) {
+                                                           g_view_controller.textEntryResult = @"";
+                                                         }];
+    [alertController addAction:cancelAction];
+    [g_view_controller presentViewController:alertController animated:YES completion:nil];
+  });
+
+  while (true) {
+    // Pause a second, waiting for the user to enter text.
+    if (ProcessEvents(1000)) {
+      // If this returns true, an exit was requested.
+      return "";
+    }
+    if (g_view_controller.textEntryResult != nil) {
+      // textEntryResult will be set to non-nil when a dialog button is clicked.
+      std::string result = g_view_controller.textEntryResult.UTF8String;
+      g_view_controller.textEntryResult = nil;  // Consume the result.
+      return result;
+    }
+  }
+}
+
+bool IsLoggingToFile() { return g_file_url_path; }
+
+bool StartLoggingToFile(const char *file_path) {
+  NSURL *home_url = [NSURL fileURLWithPath:NSHomeDirectory()];
+  g_results_url = [home_url URLByAppendingPathComponent:@"/Documents/GameLoopResults"];
+  g_file_name = @(file_path);
+  g_file_url_path = [g_results_url URLByAppendingPathComponent:g_file_name].path;
+  NSError *error;
+  if (![NSFileManager.defaultManager fileExistsAtPath:[g_results_url path]]) {
+    if (![NSFileManager.defaultManager createDirectoryAtPath:g_results_url.path
+                                 withIntermediateDirectories:true
+                                                  attributes:nil
+                                                       error:&error]) {
+      app_framework::LogError("Couldn't create directory %s: %s", g_results_url.path,
+                              error.description.UTF8String);
+      g_file_url_path = nil;
+      return false;
+    }
+  }
+  return true;
+}
+
+}  // namespace app_framework
+
+int main(int argc, char* argv[]) {
+  // Pipe stdout to call LogToTextView so we can see the gtest output.
+  int filedes[2];
+  assert(pipe(filedes) != -1);
+  assert(dup2(filedes[1], STDOUT_FILENO) != -1);
+  pthread_t thread;
+  pthread_create(&thread, nullptr, app_framework::stdout_logger, reinterpret_cast<void *>(filedes));
+  @autoreleasepool {
+    UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+  // Signal to stdout_logger to exit.
+  write(filedes[1], "\0", 1);
+  pthread_join(thread, nullptr);
+  close(filedes[0]);
+  close(filedes[1]);
+
+  NSLog(@"Application Exit");
+  return g_exit_status;
+}
+
+@implementation AppDelegate
+- (BOOL)application:(UIApplication *)app
+            openURL:(NSURL *)url
+            options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options {
+  if ([url.scheme isEqual:kGameLoopUrlPrefix]) {
+    g_gameloop_launch = true;
+    app_framework::StartLoggingToFile(GAMELOOP_DEFAULT_LOG_FILE);
+    return YES;
+  }
+  NSLog(@"The testapp will not log to files since it is not launched by URL %@",
+        kGameLoopUrlPrefix);
+  return NO;
+}
+
+- (BOOL)application:(UIApplication*)application
+    didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
+  g_shutdown_complete = [[NSCondition alloc] init];
+  g_shutdown_signal = [[NSCondition alloc] init];
+  [g_shutdown_complete lock];
+
+  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
+  g_view_controller = [[FTAViewController alloc] init];
+  self.window.rootViewController = g_view_controller;
+  [self.window makeKeyAndVisible];
+
+  g_text_view = [[UITextView alloc] initWithFrame:g_view_controller.view.bounds];
+
+  g_text_view.accessibilityIdentifier = @"Logger";
+  g_text_view.editable = NO;
+  g_text_view.scrollEnabled = YES;
+  g_text_view.userInteractionEnabled = YES;
+  g_text_view.font = [UIFont fontWithName:@"Courier" size:10];
+  [g_view_controller.view addSubview:g_text_view];
+
+  return YES;
+}
+
+- (void)applicationWillTerminate:(UIApplication *)application {
+  g_shutdown = true;
+  [g_shutdown_signal signal];
+  [g_shutdown_complete wait];
+}
+@end
diff --git a/testing/test_framework/download_googletest.py b/testing/test_framework/download_googletest.py
new file mode 100755
index 0000000000..9f3bd9883c
--- /dev/null
+++ b/testing/test_framework/download_googletest.py
@@ -0,0 +1,79 @@
+#!/usr/bin/python
+
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Download GoogleTest from GitHub into a subdirectory."""
+
+# pylint: disable=superfluous-parens,g-import-not-at-top
+
+import io
+import os
+import shutil
+import tempfile
+import zipfile
+
+# Import urllib in a way that is compatible with Python 2 and Python 3.
+try:
+  import urllib.request
+  compatible_urlopen = urllib.request.urlopen
+except ImportError:
+  import urllib2
+  compatible_urlopen = urllib2.urlopen
+
+# Run from inside the script directory
+SRC_DIR = os.path.relpath(os.path.dirname(__file__))
+TAG = os.path.basename(__file__)
+
+GOOGLETEST_ZIP = 'https://github.com/google/googletest/archive/master.zip'
+# Top-level directory inside the zip file to ignore.
+GOOGLETEST_DIR = os.path.join('googletest-master')
+
+# The GoogleTest code is copied into this subdirectory.
+# This structure matches where the files are placed by CMake.
+DESTINATION_DIR = os.path.join(SRC_DIR, 'external/googletest/src')
+
+CHECK_EXISTS = os.path.join(
+    SRC_DIR, 'external/googletest/src/googletest/src/gtest-all.cc')
+
+# Don't download it again if it already exists.
+if os.path.exists(CHECK_EXISTS):
+  print('%s: GoogleTest already downloaded, skipping.' % (TAG))
+  exit(0)
+
+# Download the zipfile into memory, extract into /tmp, then move into the
+# current directory.
+
+try:
+  # Download to a temporary directory.
+  zip_extract_path = tempfile.mkdtemp(suffix='googletestdownload')
+  print('%s: Downloading GoogleTest from %s' % (TAG, GOOGLETEST_ZIP))
+  zip_download = compatible_urlopen(GOOGLETEST_ZIP)
+  zip_file = io.BytesIO(zip_download.read())
+  print('%s: Extracting GoogleTest...' % (TAG))
+  zip_ref = zipfile.ZipFile(zip_file, mode='r')
+  zip_ref.extractall(zip_extract_path)
+  if os.path.exists(DESTINATION_DIR):
+    shutil.rmtree(DESTINATION_DIR)
+  shutil.move(os.path.join(zip_extract_path, GOOGLETEST_DIR), DESTINATION_DIR)
+  print('%s: Finished.' % (TAG))
+except Exception as e:
+  raise
+finally:
+  # Clean up the temp directory if we created one.
+  if os.path.exists(zip_extract_path):
+    shutil.rmtree(zip_extract_path)
+
+if not os.path.exists(CHECK_EXISTS):
+  print('%s: Failed to download GoogleTest to %s' % (TAG, DESTINATION_DIR))
+  exit(1)
diff --git a/testing/test_framework/src/android/android_firebase_test_framework.cc b/testing/test_framework/src/android/android_firebase_test_framework.cc
new file mode 100644
index 0000000000..12c092f2d9
--- /dev/null
+++ b/testing/test_framework/src/android/android_firebase_test_framework.cc
@@ -0,0 +1,225 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "firebase_test_framework.h"  // NOLINT
+
+namespace firebase_test_framework {
+
+using app_framework::LogDebug;
+using app_framework::LogError;
+
+// Blocking HTTP request helper function.
+static bool SendHttpRequest(const char* url,
+                            const std::map<std::string, std::string>& headers,
+                            const std::string* post_body, int* response_code,
+                            std::string* response_str) {
+  JNIEnv* env = app_framework::GetJniEnv();
+  jobject activity = app_framework::GetActivity();
+  jclass simple_http_request_class = app_framework::FindClass(
+      env, activity, "com/google/firebase/example/SimpleHttpRequest");
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  jmethodID constructor = env->GetMethodID(simple_http_request_class, "<init>",
+                                           "(Ljava/lang/String;)V");
+  jmethodID set_post_data =
+      env->GetMethodID(simple_http_request_class, "setPostData", "([B)V");
+  jmethodID add_header =
+      env->GetMethodID(simple_http_request_class, "addHeader",
+                       "(Ljava/lang/String;Ljava/lang/String;)V");
+  jmethodID perform = env->GetMethodID(simple_http_request_class, "perform",
+                                       "()Ljava/lang/String;");
+  jmethodID get_response_code =
+      env->GetMethodID(simple_http_request_class, "getResponseCode", "()I");
+
+  jstring url_jstring = env->NewStringUTF(url);
+  // http_request = new SimpleHttpRequestClass(url);
+  jobject http_request =
+      env->NewObject(simple_http_request_class, constructor, url_jstring);
+  env->DeleteLocalRef(url_jstring);
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    if (http_request) env->DeleteLocalRef(http_request);
+    return false;
+  }
+  // for (header : headers) {
+  //   http_request.addHeader(header.key, header.value);
+  // }
+  for (auto i = headers.begin(); i != headers.end(); ++i) {
+    jstring key_jstring = env->NewStringUTF(i->first.c_str());
+    jstring value_jstring = env->NewStringUTF(i->second.c_str());
+    env->CallVoidMethod(http_request, add_header, key_jstring, value_jstring);
+    env->DeleteLocalRef(key_jstring);
+    env->DeleteLocalRef(value_jstring);
+    if (env->ExceptionCheck()) {
+      env->ExceptionDescribe();
+      env->ExceptionClear();
+      if (http_request) env->DeleteLocalRef(http_request);
+      return false;
+    }
+  }
+  if (post_body != nullptr) {
+    // http_request.setPostBody(post_body);
+    jbyteArray post_body_array = env->NewByteArray(post_body->length());
+    env->SetByteArrayRegion(post_body_array, 0, post_body->length(),
+                            reinterpret_cast<const jbyte*>(post_body->c_str()));
+    env->CallVoidMethod(http_request, set_post_data, post_body_array);
+    env->DeleteLocalRef(post_body_array);
+    if (env->ExceptionCheck()) {
+      env->ExceptionDescribe();
+      env->ExceptionClear();
+      if (http_request) env->DeleteLocalRef(http_request);
+      return false;
+    }
+  }
+  // String response = http_request.perform();
+  jobject response = env->CallObjectMethod(http_request, perform);
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+  }
+  jstring response_jstring = static_cast<jstring>(response);
+  // int response_code = http_request.getResponseCode();
+  jint response_code_jint = env->CallIntMethod(http_request, get_response_code);
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+  }
+  LogDebug("HTTP status code %d", response_code_jint);
+  if (response_code) *response_code = response_code_jint;
+
+  env->DeleteLocalRef(http_request);
+  if (response_jstring == nullptr) {
+    return false;
+  }
+  const char* response_text = env->GetStringUTFChars(response_jstring, nullptr);
+  LogDebug("Got response: %s", response_text);
+  if (response_str) *response_str = response_text;
+  env->ReleaseStringUTFChars(response_jstring, response_text);
+  env->DeleteLocalRef(response);
+  return true;
+}
+
+// Blocking HTTP request helper function, for testing only.
+bool FirebaseTest::SendHttpGetRequest(
+    const char* url, const std::map<std::string, std::string>& headers,
+    int* response_code, std::string* response_str) {
+  return SendHttpRequest(url, headers, nullptr, response_code, response_str);
+}
+
+bool FirebaseTest::SendHttpPostRequest(
+    const char* url, const std::map<std::string, std::string>& headers,
+    const std::string& post_body, int* response_code,
+    std::string* response_str) {
+  return SendHttpRequest(url, headers, &post_body, response_code, response_str);
+}
+
+bool FirebaseTest::OpenUrlInBrowser(const char* url) {
+  JNIEnv* env = app_framework::GetJniEnv();
+  jobject activity = app_framework::GetActivity();
+  jclass simple_http_request_class = app_framework::FindClass(
+      env, activity, "com/google/firebase/example/SimpleHttpRequest");
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  jmethodID open_url =
+      env->GetStaticMethodID(simple_http_request_class, "openUrlInBrowser",
+                             "(Ljava/lang/String;Landroid/app/Activity;)V");
+  jstring url_jstring = env->NewStringUTF(url);
+  env->CallStaticVoidMethod(simple_http_request_class, open_url, url_jstring,
+                            activity);
+  env->DeleteLocalRef(url_jstring);
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  return true;
+}
+
+bool FirebaseTest::SetPersistentString(const char* key, const char* value) {
+  if (key == nullptr) {
+    LogError("SetPersistentString: null key is not allowed.");
+    return false;
+  }
+  JNIEnv* env = app_framework::GetJniEnv();
+  jobject activity = app_framework::GetActivity();
+  jclass simple_persistent_storage_class = app_framework::FindClass(
+      env, activity, "com/google/firebase/example/SimplePersistentStorage");
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  jmethodID set_string = env->GetStaticMethodID(
+      simple_persistent_storage_class, "setString",
+      "(Landroid/app/Activity;Ljava/lang/String;Ljava/lang/String;)V");
+  jstring key_jstring = env->NewStringUTF(key);
+  jstring value_jstring = value ? env->NewStringUTF(value) : nullptr;
+  env->CallStaticVoidMethod(simple_persistent_storage_class, set_string,
+                            activity, key_jstring, value_jstring);
+  env->DeleteLocalRef(key_jstring);
+  if (value_jstring) {
+    env->DeleteLocalRef(value_jstring);
+  }
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  return true;
+}
+
+bool FirebaseTest::GetPersistentString(const char* key,
+                                       std::string* value_out) {
+  JNIEnv* env = app_framework::GetJniEnv();
+  jobject activity = app_framework::GetActivity();
+  jclass simple_persistent_storage_class = app_framework::FindClass(
+      env, activity, "com/google/firebase/example/SimplePersistentStorage");
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    return false;
+  }
+  jmethodID get_string = env->GetStaticMethodID(
+      simple_persistent_storage_class, "getString",
+      "(Landroid/app/Activity;Ljava/lang/String;)Ljava/lang/String;");
+  jstring key_jstring = env->NewStringUTF(key);
+  jstring value_jstring = static_cast<jstring>(env->CallStaticObjectMethod(
+      simple_persistent_storage_class, get_string, activity, key_jstring));
+  env->DeleteLocalRef(key_jstring);
+  if (env->ExceptionCheck()) {
+    env->ExceptionDescribe();
+    env->ExceptionClear();
+    if (value_jstring) {
+      env->DeleteLocalRef(value_jstring);
+    }
+    return false;
+  }
+  if (value_jstring == nullptr) {
+    return false;
+  }
+  const char* value_text = env->GetStringUTFChars(value_jstring, nullptr);
+  if (value_out) *value_out = std::string(value_text);
+  env->ReleaseStringUTFChars(value_jstring, value_text);
+  env->DeleteLocalRef(value_jstring);
+  return true;
+}
+
+}  // namespace firebase_test_framework
diff --git a/testing/test_framework/src/android/java/com/google/firebase/example/SimpleHttpRequest.java b/testing/test_framework/src/android/java/com/google/firebase/example/SimpleHttpRequest.java
new file mode 100644
index 0000000000..d56a2d6763
--- /dev/null
+++ b/testing/test_framework/src/android/java/com/google/firebase/example/SimpleHttpRequest.java
@@ -0,0 +1,118 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.firebase.example;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * A simple client for performing synchronous HTTP/HTTPS requests, used for testing purposes only.
+ */
+public final class SimpleHttpRequest {
+  private URL url;
+  private final HashMap<String, String> headers;
+  private byte[] postData;
+  private int responseCode;
+  /** Create a new SimpleHttpRequest with a default URL. */
+  public SimpleHttpRequest(String urlString) throws MalformedURLException {
+    this.headers = new HashMap<>();
+    this.postData = null;
+    setUrl(urlString);
+  }
+  /** Set the URL to the given string, or null if it can't be parsed. */
+  public void setUrl(String urlString) throws MalformedURLException {
+    this.url = new URL(urlString);
+  }
+  /** Get the previously-set URL. */
+  public URL getUrl() {
+    return this.url;
+  }
+  /** Set the HTTP POST body, and set this request to a POST request. */
+  public void setPostData(byte[] postData) {
+    this.postData = postData;
+  }
+  /** Clear out the HTTP POST body, setting this request back to a GET request. */
+  public void clearPostData() {
+    this.postData = null;
+  }
+  /** Add a header key-value pair. */
+  public void addHeader(String key, String value) {
+    this.headers.put(key, value);
+  }
+  /** Clear previously-set headers. */
+  public void clearHeaders() {
+    this.headers.clear();
+  }
+
+  /** Get the response code returned by the server, after perform() is finished. */
+  public int getResponseCode() {
+    return this.responseCode;
+  }
+
+  /**
+   * Perform a HTTP request to the given URL, with the given headers. If postData is non-null, use a
+   * POST request, else use a GET request. This method blocks until getting a response.
+   */
+  public String perform() throws IOException {
+    if (this.url == null) {
+      return null;
+    }
+
+    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+    connection.setRequestMethod(postData != null ? "POST" : "GET");
+    for (Map.Entry<String, String> entry : this.headers.entrySet()) {
+      connection.setRequestProperty(entry.getKey(), entry.getValue());
+    }
+    if (this.postData != null) {
+      connection.setDoOutput(true);
+      connection.setFixedLengthStreamingMode(postData.length);
+      connection.getOutputStream().write(postData);
+    }
+    responseCode = connection.getResponseCode();
+    StringBuilder result = new StringBuilder();
+    BufferedReader inputStream =
+        new BufferedReader(new InputStreamReader(connection.getInputStream()));
+    String line;
+    while ((line = inputStream.readLine()) != null) {
+      result.append(line);
+    }
+    connection.disconnect();
+    return result.toString();
+  }
+
+  /** A one-off helper method to simply open a URL in a browser window. */
+  public static void openUrlInBrowser(String urlString, Activity activity) {
+    if (urlString.startsWith("data:")) {
+      // Use makeMainSelectorActivity to handle data: URLs.
+      activity.startActivity(
+          Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, Intent.CATEGORY_APP_BROWSER)
+              .setData(Uri.parse(urlString)));
+    } else {
+      // Otherwise use the default intent handler for the URL.
+      Intent intent = new Intent(Intent.ACTION_VIEW);
+      intent.setData(Uri.parse(urlString));
+      activity.startActivity(intent);
+    }
+  }
+}
diff --git a/testing/test_framework/src/android/java/com/google/firebase/example/SimplePersistentStorage.java b/testing/test_framework/src/android/java/com/google/firebase/example/SimplePersistentStorage.java
new file mode 100644
index 0000000000..62d596c678
--- /dev/null
+++ b/testing/test_framework/src/android/java/com/google/firebase/example/SimplePersistentStorage.java
@@ -0,0 +1,45 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.firebase.example;
+
+import android.app.Activity;
+import android.content.SharedPreferences;
+
+/** Static utilties for saving and loading shared preference strings. */
+public final class SimplePersistentStorage {
+  private static final String PREF_NAME = "firebase_automated_test";
+  /**
+   * Sets a given key's value in persistent storage to the given string. Specify null to delete the
+   * key.
+   */
+  public static void setString(Activity activity, String key, String value) {
+    SharedPreferences pref = activity.getSharedPreferences(PREF_NAME, 0);
+    SharedPreferences.Editor editor = pref.edit();
+    if (value != null) {
+      editor.putString(key, value);
+    } else {
+      editor.remove(key);
+    }
+    editor.commit();
+  }
+
+  /** Gets the value of the given key in persistent storage, or null if the key is not found. */
+  public static String getString(Activity activity, String key) {
+    SharedPreferences pref = activity.getSharedPreferences(PREF_NAME, 0);
+    return pref.getString(key, null);
+  }
+
+  private SimplePersistentStorage() {}
+}
diff --git a/testing/test_framework/src/desktop/desktop_firebase_test_framework.cc b/testing/test_framework/src/desktop/desktop_firebase_test_framework.cc
new file mode 100644
index 0000000000..8ffbf9bb44
--- /dev/null
+++ b/testing/test_framework/src/desktop/desktop_firebase_test_framework.cc
@@ -0,0 +1,52 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "firebase_test_framework.h"  // NOLINT
+
+namespace firebase_test_framework {
+
+using app_framework::LogWarning;
+
+bool FirebaseTest::SendHttpGetRequest(
+    const char* url, const std::map<std::string, std::string>& headers,
+    int* response_code, std::string* response_str) {
+  LogWarning("SendHttpGetRequest is not implemented on desktop.");
+  return false;
+}
+
+bool FirebaseTest::SendHttpPostRequest(
+    const char* url, const std::map<std::string, std::string>& headers,
+    const std::string& post_body, int* response_code,
+    std::string* response_str) {
+  LogWarning("SendHttpPostRequest is not implemented on desktop.");
+  return false;
+}
+
+bool FirebaseTest::OpenUrlInBrowser(const char* url) {
+  LogWarning("OpenUrlInBrowser is not implemented on desktop.");
+  return false;
+}
+
+bool FirebaseTest::SetPersistentString(const char* key, const char* value) {
+  LogWarning("SetPersistentString is not implemented on desktop.");
+  return false;
+}
+
+bool FirebaseTest::GetPersistentString(const char* key,
+                                       std::string* value_out) {
+  LogWarning("GetPersistentString is not implemented on desktop.");
+  return false;
+}
+
+}  // namespace firebase_test_framework
diff --git a/testing/test_framework/src/firebase_test_framework.cc b/testing/test_framework/src/firebase_test_framework.cc
new file mode 100644
index 0000000000..d34f0bc2c6
--- /dev/null
+++ b/testing/test_framework/src/firebase_test_framework.cc
@@ -0,0 +1,221 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "firebase_test_framework.h"  // NOLINT
+
+#include <cstdio>
+
+#include "firebase/future.h"
+
+namespace firebase {
+namespace internal {
+// Borrow Firebase's internal Base64 encoder and decoder.
+extern bool Base64Encode(const std::string& input, std::string* output);
+extern bool Base64Decode(const std::string& input, std::string* output);
+}  // namespace internal
+}  // namespace firebase
+
+namespace firebase_test_framework {
+
+int FirebaseTest::argc_ = 0;
+char** FirebaseTest::argv_ = nullptr;
+bool FirebaseTest::found_config_ = false;
+
+FirebaseTest::FirebaseTest() : app_(nullptr) {}
+
+FirebaseTest::~FirebaseTest() { assert(app_ == nullptr); }
+
+void FirebaseTest::SetUp() {}
+
+void FirebaseTest::TearDown() {
+  if (HasFailure()) {
+    app_framework::SetPreserveFullLog(false);
+    app_framework::LogError(
+        "Test %s failed.\nFull test log:\n%s",
+        ::testing::UnitTest::GetInstance()->current_test_info()->name(),
+        "========================================================");
+    app_framework::SetPreserveFullLog(true);
+    app_framework::AddToFullLog(
+        "========================================================\n");
+    app_framework::OutputFullLog();
+  } else {
+    app_framework::ClearFullLog();
+  }
+}
+
+void FirebaseTest::FindFirebaseConfig(const char* try_directory) {
+#if !defined(__ANDROID__) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+  static const char kDefaultGoogleServicesPath[] = "google-services.json";
+
+  if (!found_config_) {
+    if (try_directory[0] != '\0' && app_framework::FileExists(try_directory)) {
+      app_framework::ChangeToFileDirectory(try_directory);
+    } else if (app_framework::FileExists(kDefaultGoogleServicesPath)) {
+      // It's in the current directory, don't do anything.
+    } else {
+      // Try the directory the binary is in.
+      app_framework::ChangeToFileDirectory(argv_[0]);
+    }
+    // Only do this once.
+    found_config_ = true;
+  }
+#endif  //  !defined(__ANDROID__) && !(defined(TARGET_OS_IPHONE) &&
+        //  TARGET_OS_IPHONE)
+  (void)try_directory;
+}
+
+void FirebaseTest::InitializeApp() {
+  if (app_) return;  // Already initialized.
+
+  app_framework::LogDebug("Initialize Firebase App.");
+
+#if defined(__ANDROID__)
+  app_ = ::firebase::App::Create(app_framework::GetJniEnv(),
+                                 app_framework::GetActivity());
+#else
+  app_ = ::firebase::App::Create();
+#endif  // defined(__ANDROID__)
+}
+
+void FirebaseTest::TerminateApp() {
+  if (!app_) return;  // Already terminated.
+
+  app_framework::LogDebug("Shutdown Firebase App.");
+  delete app_;
+  app_ = nullptr;
+}
+
+bool FirebaseTest::WaitForCompletion(const firebase::FutureBase& future,
+                                     const char* name, int expected_error) {
+  app_framework::LogDebug("WaitForCompletion %s", name);
+  while (future.status() == firebase::kFutureStatusPending) {
+    app_framework::ProcessEvents(100);
+  }
+  EXPECT_EQ(future.status(), firebase::kFutureStatusComplete)
+      << name << " returned an invalid status.";
+  EXPECT_EQ(future.error(), expected_error)
+      << name << " returned error " << future.error() << ": "
+      << future.error_message();
+  return (future.status() == firebase::kFutureStatusComplete &&
+          future.error() == expected_error);
+}
+
+static void VariantToStringInternal(const firebase::Variant& variant,
+                                    std::ostream& out,
+                                    const std::string& indent) {
+  if (variant.is_null()) {
+    out << "null";
+  } else if (variant.is_int64()) {
+    out << variant.int64_value();
+  } else if (variant.is_double()) {
+    out << variant.double_value();
+  } else if (variant.is_bool()) {
+    out << (variant.bool_value() ? "true" : "false");
+  } else if (variant.is_string()) {
+    out << variant.string_value();
+  } else if (variant.is_blob()) {
+    out << "blob[" << variant.blob_size() << "] = <";
+    char hex[3];
+    for (size_t i = 0; i < variant.blob_size(); ++i) {
+      snprintf(hex, sizeof(hex), "%02x", variant.blob_data()[i]);
+      if (i != 0) out << " ";
+      out << hex;
+    }
+    out << ">";
+  } else if (variant.is_vector()) {
+    out << "[" << std::endl;
+    const auto& v = variant.vector();
+    for (auto it = v.begin(); it != v.end(); ++it) {
+      out << indent + "  ";
+      VariantToStringInternal(*it, out, indent + "  ");
+      auto next_it = it;
+      next_it++;
+      if (next_it != v.end()) out << ",";
+      out << std::endl;
+    }
+    out << "]";
+  } else if (variant.is_map()) {
+    out << "[" << std::endl;
+    const auto& m = variant.map();
+    for (auto it = m.begin(); it != m.end(); ++it) {
+      out << indent + "  ";
+      VariantToStringInternal(it->first, out, indent + "  ");
+      out << ": ";
+      VariantToStringInternal(it->second, out, indent + "  ");
+      auto next_it = it;
+      next_it++;
+      if (next_it != m.end()) out << ",";
+      out << std::endl;
+    }
+    out << "]";
+  } else {
+    out << "<unsupported type>";
+  }
+}
+
+std::string FirebaseTest::VariantToString(const firebase::Variant& variant) {
+  std::ostringstream out;
+  VariantToStringInternal(variant, out, "");
+  return out.str();
+}
+
+bool FirebaseTest::IsUserInteractionAllowed() {
+  // In the trivial case, just check whether we are logging to file. If not,
+  // assume interaction is allowed.
+  return !app_framework::IsLoggingToFile();
+}
+
+bool FirebaseTest::Base64Encode(const std::string& input, std::string* output) {
+  return ::firebase::internal::Base64Encode(input, output);
+}
+
+bool FirebaseTest::Base64Decode(const std::string& input, std::string* output) {
+  return ::firebase::internal::Base64Decode(input, output);
+}
+
+class LogTestEventListener : public testing::EmptyTestEventListener {
+ public:
+  void OnTestPartResult(
+      const testing::TestPartResult& test_part_result) override {
+    if (test_part_result.failed() && test_part_result.message()) {
+      app_framework::AddToFullLog(test_part_result.message());
+      app_framework::AddToFullLog("\n");
+    }
+  };
+};
+
+}  // namespace firebase_test_framework
+
+namespace firebase {
+// gtest requires that the operator<< be in the same namespace as the item you
+// are outputting.
+std::ostream& operator<<(std::ostream& os, const Variant& v) {
+  return os << firebase_test_framework::FirebaseTest::VariantToString(v);
+}
+}  // namespace firebase
+
+extern "C" int common_main(int argc, char* argv[]) {
+  ::testing::InitGoogleTest(&argc, argv);
+  firebase_test_framework::FirebaseTest::SetArgs(argc, argv);
+  app_framework::SetLogLevel(app_framework::kInfo);
+  // Anything below the given log level will be preserved, and printed out in
+  // the event of test failure.
+  app_framework::SetPreserveFullLog(true);
+  ::testing::TestEventListeners& listeners =
+      ::testing::UnitTest::GetInstance()->listeners();
+  listeners.Append(new firebase_test_framework::LogTestEventListener());
+  int result = RUN_ALL_TESTS();
+
+  return result;
+}
diff --git a/testing/test_framework/src/firebase_test_framework.h b/testing/test_framework/src/firebase_test_framework.h
new file mode 100644
index 0000000000..4beb4fc492
--- /dev/null
+++ b/testing/test_framework/src/firebase_test_framework.h
@@ -0,0 +1,180 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef FIREBASE_TEST_FRAMEWORK_H_  // NOLINT
+#define FIREBASE_TEST_FRAMEWORK_H_  // NOLINT
+
+#include <iostream>
+
+#include "app_framework.h"  // NOLINT
+#include "firebase/app.h"
+#include "firebase/future.h"
+#include "firebase/internal/platform.h"
+#include "firebase/util.h"
+#include "firebase/variant.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace firebase_test_framework {
+
+// Use this macro to skip an entire test if it requires interactivity and we are
+// not running in interactive mode (for example, on FTL).
+#define TEST_REQUIRES_USER_INTERACTION                                      \
+  if (!IsUserInteractionAllowed()) {                                        \
+    app_framework::LogInfo("Skipping %s, as it requires user interaction.", \
+                           test_info_->name());                             \
+    GTEST_SKIP();                                                           \
+    return;                                                                 \
+  }
+
+#if TARGET_OS_IPHONE
+#define TEST_REQUIRES_USER_INTERACTION_ON_IOS TEST_REQUIRES_USER_INTERACTION
+#define TEST_REQUIRES_USER_INTERACTION_ON_ANDROID ((void)0)
+#elif defined(ANDROID)
+#define TEST_REQUIRES_USER_INTERACTION_ON_IOS ((void)0)
+#define TEST_REQUIRES_USER_INTERACTION_ON_ANDROID TEST_REQUIRES_USER_INTERACTION
+#else
+#define TEST_REQUIRES_USER_INTERACTION_ON_IOS ((void)0)
+#define TEST_REQUIRES_USER_INTERACTION_ON_ANDROID ((void)0)
+#endif  // TARGET_OS_IPHONE
+
+#if !defined(ANDROID) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+#define SKIP_TEST_ON_DESKTOP                                               \
+  {                                                                        \
+    app_framework::LogInfo("Skipping %s on desktop.", test_info_->name()); \
+    GTEST_SKIP();                                                          \
+    return;                                                                \
+  }
+#else
+#define SKIP_TEST_ON_DESKTOP ((void)0)
+#endif  // !defined(ANDROID) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+
+#if defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+#define SKIP_TEST_ON_MOBILE                                               \
+  {                                                                       \
+    app_framework::LogInfo("Skipping %s on mobile.", test_info_->name()); \
+    GTEST_SKIP();                                                         \
+    return;                                                               \
+  }
+#else
+#define SKIP_TEST_ON_MOBILE ((void)0)
+#endif  // defined(ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
+
+#if defined(STLPORT)
+#define SKIP_TEST_IF_USING_STLPORT                                             \
+  {                                                                            \
+    app_framework::LogInfo("Skipping %s due to incompatibility with STLPort.", \
+                           test_info_->name());                                \
+    GTEST_SKIP();                                                              \
+    return;                                                                    \
+  }
+#else
+#define SKIP_TEST_IF_USING_STLPORT ((void)0)
+#endif  // defined(STLPORT)
+
+#define KNOWN_FAILURE(explanation) \
+  { FAIL() << test_info_->name() << " has a known failure: " << explanation; }
+
+#if FIREBASE_PLATFORM_LINUX || FIREBASE_PLATFORM_OSX
+#define DEATHTEST_SIGABRT "SIGABRT"
+#else
+#define DEATHTEST_SIGABRT ""
+#endif
+
+class FirebaseTest : public testing::Test {
+ public:
+  FirebaseTest();
+  ~FirebaseTest() override;
+
+  void SetUp() override;
+  void TearDown() override;
+
+  // Check the given directory, the current directory, and the directory
+  // containing the binary for google-services.json, and change to whichever
+  // directory contains it.
+  static void FindFirebaseConfig(const char* try_directory);
+
+  static void SetArgs(int argc, char* argv[]) {
+    argc_ = argc;
+    argv_ = argv;
+  }
+
+  // Convert a Variant into a string (including all nested Variants) for
+  // debugging.
+  static std::string VariantToString(const firebase::Variant& variant);
+
+ protected:
+  // Set up firebase::App with default settings.
+  void InitializeApp();
+  // Shut down firebase::App.
+  void TerminateApp();
+
+  // Returns true if interactive tests are allowed, false if only
+  // fully-automated tests should be run.
+  bool AreInteractiveTestsAllowed();
+
+  // Get a persistent string value that was previously set via
+  // SetPersistentString. Returns true if the value was set, false if not or if
+  // something went wrong.
+  static bool GetPersistentString(const char* key, std::string* value_out);
+  // Set a persistent string value that can be accessed the next time the test
+  // loads. Specify nullptr for value to delete the key. Returns true if
+  // successful, false if something went wrong.
+  static bool SetPersistentString(const char* key, const char* value);
+
+  // Returns true if the future completed as expected, fails the test and
+  // returns false otherwise.
+  static bool WaitForCompletion(const firebase::FutureBase& future,
+                                const char* name, int expected_error = 0);
+
+  // Blocking HTTP request helper function, for testing only.
+  static bool SendHttpGetRequest(
+      const char* url, const std::map<std::string, std::string>& headers,
+      int* response_code, std::string* response);
+
+  // Blocking HTTP request helper function, for testing only.
+  static bool SendHttpPostRequest(
+      const char* url, const std::map<std::string, std::string>& headers,
+      const std::string& post_body, int* response_code, std::string* response);
+
+  // Open a URL in a browser window, for testing only.
+  static bool OpenUrlInBrowser(const char* url);
+
+  // Returns true if we can run tests that require interaction, false if not.
+  static bool IsUserInteractionAllowed();
+
+  // Encode a binary string to base64. Returns true if the encoding succeeded,
+  // false if it failed.
+  static bool Base64Encode(const std::string& input, std::string* output);
+  // Decode a base64 string to binary. Returns true if the decoding succeeded,
+  // false if it failed.
+  static bool Base64Decode(const std::string& input, std::string* output);
+
+  firebase::App* app_;
+  static int argc_;
+  static char** argv_;
+  static bool found_config_;
+};
+
+}  // namespace firebase_test_framework
+
+namespace firebase {
+// Define an operator<< for Variant so that googletest can output its values
+// nicely.
+std::ostream& operator<<(std::ostream& os, const Variant& v);
+}  // namespace firebase
+
+extern "C" int common_main(int argc, char* argv[]);
+
+#endif  // FIREBASE_TEST_FRAMEWORK_H_  // NOLINT
diff --git a/testing/test_framework/src/ios/ios_firebase_test_framework.mm b/testing/test_framework/src/ios/ios_firebase_test_framework.mm
new file mode 100644
index 0000000000..d36f141d99
--- /dev/null
+++ b/testing/test_framework/src/ios/ios_firebase_test_framework.mm
@@ -0,0 +1,190 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "firebase_test_framework.h"  // NOLINT
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+
+namespace firebase_test_framework {
+
+using app_framework::LogDebug;
+using app_framework::LogError;
+using app_framework::ProcessEvents;
+
+// Default HTTP timeout of 1 minute.
+const int kHttpTimeoutSeconds = 60;
+
+// A simple helper function for performing synchronous HTTP/HTTPS requests, used for testing
+// purposes only.
+static bool SendHttpRequest(const char* method, const char* url,
+                            const std::map<std::string, std::string>& headers,
+                            const std::string& post_body, int* response_code,
+                            std::string* response_str) {
+  NSMutableURLRequest* url_request = [[NSMutableURLRequest alloc] init];
+  url_request.URL = [NSURL URLWithString:@(url)];
+  url_request.HTTPMethod = @(method);
+  url_request.timeoutInterval = kHttpTimeoutSeconds;
+  if (strcmp(method, "POST") == 0) {
+    url_request.HTTPBody = [NSData dataWithBytes:post_body.c_str() length:post_body.length()];
+  }
+  // Set all the headers.
+  for (auto i = headers.begin(); i != headers.end(); ++i) {
+    [url_request addValue:@(i->second.c_str()) forHTTPHeaderField:@(i->first.c_str())];
+  }
+  __block dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+  __block NSError* response_error;
+  __block NSHTTPURLResponse* http_response;
+  __block NSData* response_data;
+  LogDebug("Sending HTTP %s request to %s", method, url);
+  @try {
+    [[NSURLSession.sharedSession
+        dataTaskWithRequest:url_request
+          completionHandler:^(NSData* __nullable data, NSURLResponse* __nullable response,
+                              NSError* __nullable error) {
+            response_data = data;
+            http_response = (NSHTTPURLResponse*)(response);
+            response_error = error;
+            dispatch_semaphore_signal(sem);
+          }] resume];
+  } @catch (NSException* e) {
+    LogError("NSURLSession exception: %s", e.reason.UTF8String);
+    return false;
+  }
+  dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+
+  LogDebug("HTTP status code %ld", http_response.statusCode);
+  if (http_response && response_code) {
+    *response_code = static_cast<int>(http_response.statusCode);
+  }
+  std::string response_text =
+      response_data.bytes
+          ? std::string(reinterpret_cast<const char*>(response_data.bytes), response_data.length)
+          : std::string();
+  LogDebug("Got response: %s", response_text.c_str());
+  if (response_str) {
+    *response_str = response_text;
+  }
+  if (response_error) {
+    LogError("HTTP error: %s", response_error.localizedDescription.UTF8String);
+    return false;
+  }
+  return true;
+}
+
+// Blocking HTTP request helper function, for testing only.
+bool FirebaseTest::SendHttpGetRequest(const char* url,
+                                      const std::map<std::string, std::string>& headers,
+                                      int* response_code, std::string* response_str) {
+  return SendHttpRequest("GET", url, headers, "", response_code, response_str);
+}
+
+bool FirebaseTest::SendHttpPostRequest(const char* url,
+                                       const std::map<std::string, std::string>& headers,
+                                       const std::string& post_body, int* response_code,
+                                       std::string* response_str) {
+  return SendHttpRequest("POST", url, headers, post_body, response_code, response_str);
+}
+
+bool FirebaseTest::OpenUrlInBrowser(const char* url) {
+  if (strncmp(url, "data:", strlen("data:")) == 0) {
+    // Workaround because Safari can't load data: URLs by default.
+    // Instead, copy the URL to the clipboard and ask the user to paste it into Safari.
+
+    // data: URLs are in the format data:text/html,<some html data goes here>
+    // Preserve everything until the first comma, then URL-encode the rest.
+    const char* payload = strchr(url, ',');
+    if (payload == nullptr) {
+      return false;
+    }
+    payload++;  // Move past the comma.
+    std::string scheme_and_encoding(url);
+    scheme_and_encoding.resize(payload - url);
+    UIPasteboard* pasteboard = [UIPasteboard generalPasteboard];
+    pasteboard.string = [@(scheme_and_encoding.c_str())
+        stringByAppendingString:[@(payload) stringByAddingPercentEncodingWithAllowedCharacters:
+                                                [NSCharacterSet URLHostAllowedCharacterSet]]];
+    dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+    UIAlertController* alert =
+        [UIAlertController alertControllerWithTitle:@"Paste URL"
+                                            message:@"Opening Safari. Please tap twice on the "
+                                                    @"address bar and select \"Paste and Go\"."
+                                     preferredStyle:UIAlertControllerStyleAlert];
+    UIAlertAction* ok = [UIAlertAction actionWithTitle:@"OK"
+                                                 style:UIAlertActionStyleDefault
+                                               handler:^(UIAlertAction* action) {
+                                                 dispatch_semaphore_signal(sem);
+                                               }];
+    [alert addAction:ok];
+    dispatch_async(dispatch_get_main_queue(), ^{
+      [[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:alert
+                                                                                   animated:YES
+                                                                                 completion:nil];
+    });
+    dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+    return OpenUrlInBrowser("http://");
+  } else {
+    // Not a data: URL, load it normally.
+    dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+    __block BOOL succeeded = NO;
+    NSURL* nsurl = [NSURL URLWithString:@(url)];
+    [UIApplication.sharedApplication openURL:nsurl
+                                     options:[NSDictionary dictionary]
+                           completionHandler:^(BOOL success) {
+                             succeeded = success;
+                             dispatch_semaphore_signal(sem);
+                           }];
+    dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+    return succeeded ? true : false;
+  }
+}
+
+bool FirebaseTest::SetPersistentString(const char* key, const char* value) {
+  if (!key) {
+    LogError("SetPersistentString: null key is not allowed.");
+    return false;
+  }
+  NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
+  if (!defaults) {
+    return false;
+  }
+  if (value) {
+    [defaults setObject:@(value) forKey:@(key)];
+  } else {
+    // If value is null, remove this key.
+    [defaults removeObjectForKey:@(key)];
+  }
+  [defaults synchronize];
+  return true;
+}
+
+bool FirebaseTest::GetPersistentString(const char* key, std::string* value_out) {
+  if (!key) {
+    return false;
+  }
+  NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
+  if (!defaults) {
+    return false;
+  }
+  if (![defaults objectForKey:@(key)]) {
+    return false;  // for missing key
+  }
+  NSString* str = [defaults stringForKey:@(key)];
+  if (value_out) {
+    *value_out = std::string(str.UTF8String);
+  }
+  return true;
+}
+
+}  // namespace firebase_test_framework