diff --git a/.github/workflows/ci_pipeline.yml b/.github/workflows/ci_pipeline.yml
index 8052bb3..fdda620 100644
--- a/.github/workflows/ci_pipeline.yml
+++ b/.github/workflows/ci_pipeline.yml
@@ -1,37 +1,40 @@
 name: cute-cat-gallery-ci-pipeline
 on:
   pull_request:
-    branches: [main, develop]
+    branches: [ main, develop ]
   push:
-    branches: [main, develop]
+    branches: [ main, develop ]
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+
       - name: Checkout
         uses: actions/checkout@v4.1.0
+
       - name: Setup Java JDK
         uses: actions/setup-java@v3.13.0
         with:
           java-version: '17'
           distribution: 'adopt'
-      - name: Make gradlew executable
-        run: chmod +x ./gradlew
-      - name: Gradle Build Action
-        uses: gradle/gradle-build-action@v2.9.0
-        with:
-          arguments: build
-          gradle-version: 7.6
-      - name: Run KLint
+
+      - name: Setup Gradle
         uses: gradle/gradle-build-action@v2.9.0
         with:
-          arguments: ktlintCheck
-          gradle-version: 7.6
+          gradle-version: 8.1.1
+
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+
+      - name: Build
+        run: ./gradlew assembleDebug
+
+      - name: Run Lint
+        run: ./gradlew ktlintCheck
+
       - name: Run Tests
-        uses: gradle/gradle-build-action@v2.9.0
-        with:
-          arguments: test
-          gradle-version: 7.6
+        run: ./gradlew testDebugUnitTest
+
       - name: Upload a Build Artifact
         uses: actions/upload-artifact@v3.1.3
         with:
diff --git a/.gitignore b/.gitignore
index 276b709..eb75477 100644
--- a/.gitignore
+++ b/.gitignore
@@ -180,8 +180,7 @@ crashlytics-build.properties
 fabric.properties
 
 ### AndroidStudio Patch ###
-
-!/gradle/wrapper/gradle-wrapper.jar
+!gradle/wrapper/gradle-wrapper.jar
 
 ### Intellij ###
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
diff --git a/app/build.gradle b/app/build.gradle
index fdfa34a..dbdc9d7 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,7 +6,9 @@ plugins {
 
 android {
     compileSdk 34
-
+    packagingOptions {
+        exclude 'META-INF/INDEX.LIST'
+    }
     defaultConfig {
         applicationId "com.luishenrique.cutecatsgallery"
         minSdkVersion 21
@@ -61,6 +63,8 @@ dependencies {
     implementation "androidx.compose.material:material-android:1.5.3"
     implementation "io.coil-kt:coil-compose:2.4.0"
     implementation "androidx.navigation:navigation-compose:2.7.4"
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.1'
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.1'
     debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
     debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"
     androidTestImplementation platform("androidx.compose:compose-bom:2023.10.00")
@@ -68,6 +72,8 @@ dependencies {
 
     implementation 'com.google.accompanist:accompanist-swiperefresh:0.32.0'
 
+    implementation 'com.google.guava:guava:27.0.1-android'
+
     // progressbar cat
     implementation "com.roger.catloadinglibrary:catloadinglibrary:1.0.9"
 
@@ -83,10 +89,16 @@ dependencies {
     // viewModel
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2"
 
+    // Testng
+    implementation "org.testng:testng:$testng_version"
+
+    // Mockk
+    testImplementation "io.mockk:mockk:$mockk_version"
+
     implementation "androidx.core:core-ktx:1.12.0"
     implementation "com.google.android.material:material:1.10.0"
     implementation "androidx.appcompat:appcompat:1.6.1"
-    testImplementation "junit:junit:4.13.2"
+    testImplementation "junit:junit:*"
     androidTestImplementation "androidx.test.ext:junit:1.1.5"
     androidTestImplementation "androidx.test.espresso:espresso-core:3.5.1"
 }
\ No newline at end of file
diff --git a/app/src/main/kotlin/com/luishenrique/cutecatsgallery/home/presentation/HomeViewModelTest.kt b/app/src/main/kotlin/com/luishenrique/cutecatsgallery/home/presentation/HomeViewModelTest.kt
new file mode 100644
index 0000000..fab9ea4
--- /dev/null
+++ b/app/src/main/kotlin/com/luishenrique/cutecatsgallery/home/presentation/HomeViewModelTest.kt
@@ -0,0 +1,19 @@
+package com.luishenrique.cutecatsgallery.home.presentation
+
+import org.junit.Before
+import org.junit.Test
+
+class HomeViewModelTest {
+
+//    private lateinit var viewModel: HomeViewModel
+
+    @Before
+    fun before() {
+//        viewModel = null
+    }
+
+//    @Test
+//    fun `given getCats method when call it then cancel job`() {
+////        viewModel.getCats()
+//    }
+}
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 655b133..648273f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,6 +10,8 @@ buildscript {
         klint_version = "9.2.1"
         compose_version = "1.5.3"
         compose_compiler_version = "1.4.3"
+        mockk_version = "1.13.8"
+        testng_version = "7.3.0"
     }
     repositories {
         google()
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0c85a1f..37aef8d 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 65dcd68..aeb74cb 100644
--- a/gradlew
+++ b/gradlew
@@ -85,9 +85,6 @@ done
 APP_BASE_NAME=${0##*/}
 APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
 
@@ -144,7 +141,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -152,7 +149,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -197,6 +194,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in