Add Jacoco

.travis.yml

@@ -0,0 +1,21 @@
+language: android
+jdk: oraclejdk8
+env:
+  global:
+    - ANDROID_TARGET=android-16
+    - ANDROID_ABI=armeabi-v7a
+    - BUILD_TOOLS_VERSION=27.0.3
+    - ANDROID_TARGET=27
+android:
+  components:
+  - tools
+  - platform-tools
+  - build-tools-${BUILD_TOOLS_VERSION}
+  - android-${ANDROID_TARGET}
+  - extra-google-m2repository
+  - extra-android-m2repository
+  - sys-img-${ANDROID_ABI}-${ANDROID_TARGET}
+script:
+  - ./gradlew build jacocoTestReport
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

build.gradle

@@ -10,6 +10,7 @@ buildscript {
         classpath 'com.android.tools.build:gradle:3.2.0-alpha06'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.0'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.0'
+        classpath 'org.jacoco:org.jacoco.core:0.8.0'
     }
 }
 

restring/bintray.gradle

@@ -44,19 +44,27 @@ artifacts {
 /*--------------------------------*/
 
 // Bintray
-Properties properties = new Properties()
-properties.load(project.rootProject.file('local.properties').newDataInputStream())
+String localProperty(propertyName) {
+    Properties properties = new Properties()
+    File file = project.rootProject.file('local.properties')
+    if (file.exists()) {
+        properties.load(file.newDataInputStream())
+        return properties.getProperty(propertyName)
+    }
+    return ""
+}
 
 bintray {
-    user = properties.getProperty("bintrayUser")
-    key = properties.getProperty("bintrayApiKey")
+    user = localProperty("bintrayUser")
+    key = localProperty("bintrayApiKey")
 
     configurations = ['archives']
     pkg {
         repo = bintrayRepo
         name = bintrayName
         desc = libraryDescription
-        userOrg = organization   // If the repository is hosted by an organization instead of personal account.
+        userOrg = organization
+        // If the repository is hosted by an organization instead of personal account.
         websiteUrl = siteUrl
         vcsUrl = gitUrl
         licenses = allLicenses

restring/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.library'
+apply from: 'jacoco.gradle'
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion
@@ -15,6 +16,10 @@ android {
     }
 
     buildTypes {
+        debug {
+            minifyEnabled false
+            testCoverageEnabled true
+        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
@@ -28,7 +33,7 @@ android {
 
     testOptions {
         unitTests {
-            includeAndroidResources true
+            includeAndroidResources = true
         }
     }
 }

restring/jacoco.gradle

@@ -0,0 +1,27 @@
+apply plugin: 'jacoco'
+
+jacoco {
+    toolVersion = '0.8.0'
+}
+
+tasks.withType(Test) {
+    jacoco.includeNoLocationClasses = true
+}
+
+task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest', 'createDebugCoverageReport']) {
+
+    reports {
+        xml.enabled = true
+        html.enabled = true
+    }
+
+    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']
+    def debugTree = fileTree(dir: "$project.buildDir/intermediates/artifact_transform/compileDebugJavaWithJavac/classes", excludes: fileFilter)
+    def mainSrc = "$project.projectDir/src/main/java"
+
+    sourceDirectories = files([mainSrc])
+    classDirectories = files([debugTree])
+    executionData = fileTree(dir: project.buildDir, includes: [
+            'jacoco/testDebugUnitTest.exec', 'outputs/code-coverage/connected/*coverage.ec'
+    ])
+}