Adds Preview Screenshot tool and basic tests + fixes build

.github/ci-gradle.properties

@@ -0,0 +1,23 @@
+#
+# Copyright 2020 The Android Open Source Project
+#
+# 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.
+#
+
+org.gradle.daemon=false
+org.gradle.parallel=true
+org.gradle.jvmargs=-Xmx5120m
+org.gradle.workers.max=2
+
+kotlin.incremental=false
+kotlin.compiler.execution.strategy=in-process

.github/workflows/build_and_test.yml

@@ -0,0 +1,146 @@
+name: Build and Test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+# Ensure that only the latest commit is tested for PRs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write # Needed for git-auto-commit-action
+
+jobs:
+  build_test_lint:
+    name: "Build, Test, and Lint"
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        # Add cache-encryption-key if you set up the GRADLE_ENCRYPTION_KEY secret
+        # with:
+        #   cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build debug APK
+        run: ./gradlew assembleDebug --no-configuration-cache
+
+      - name: Apply Spotless
+        run: ./gradlew spotlessApply --init-script gradle/init.gradle.kts --no-configuration-cache
+
+      - name: Commit Spotless changes
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: 🤖 Apply Spotless formatting
+          file_pattern: '**/*.kt **/*.kts **/*.java **/*.xml'
+
+      - name: Verify Screenshot Tests (AndroidX)
+        run: ./gradlew validateDebugScreenshotTest
+
+      - name: Run local unit tests
+        run: ./gradlew testDebugUnitTest 
+
+      - name: Check lint
+        run: ./gradlew lintDebug
+
+      - name: Upload build outputs (APKs)
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: APKs
+          path: '**/build/outputs/apk/debug/*.apk'
+
+      - name: Upload JVM local test results (XML)
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: local-test-results
+          path: '**/build/test-results/test*UnitTest/TEST-*.xml'
+
+      - name: Upload lint reports (HTML)
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: lint-reports-html
+          path: '**/build/reports/lint-results-debug.html'
+
+  androidTest:
+    name: "Instrumentation Tests (emulator)"
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    strategy:
+      matrix:
+        api-level: [26]
+
+    steps:
+      - name: Delete unnecessary tools 🔧
+        uses: jlumbroso/[email protected]
+        with:
+          android: false # Don't remove Android tools
+          tool-cache: true # Remove image tool cache
+          dotnet: true
+          haskell: true
+          swap-storage: true
+
+      - name: Enable KVM group perms
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Copy CI gradle.properties
+        run: mkdir -p ~/.gradle ; cp .github/ci-gradle.properties ~/.gradle/gradle.properties
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build
+        run: ./gradlew assembleDebug assembleDebugAndroidTest
+
+      - name: Build projects and run instrumentation tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ matrix.api-level }}
+          arch: x86
+          disable-animations: true
+          disk-size: 6000M
+          heap-size: 600M
+          script: ./gradlew connectedDebugAndroidTest
+
+
+      - name: Upload test reports
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-reports-${{ matrix.api-level }}
+          path: '**/build/reports/androidTests'

app/build.gradle.kts

@@ -153,4 +153,4 @@ androidComponents {
     beforeVariants { variantBuilder ->
         variantBuilder.enableAndroidTest = false
     }
-}
+}

app/src/main/AndroidManifest.xml

@@ -1,4 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?><!--
+<?xml version="1.0" encoding="utf-8"?>
+<!--
      Copyright 2025 The Android Open Source Project
 
      Licensed under the Apache License, Version 2.0 (the "License");

core/network/build.gradle.kts

@@ -50,6 +50,13 @@ android {
     }
 }
 
+// Explicitly disable the connectedAndroidTest task for this module
+androidComponents {
+    beforeVariants(selector().all()) { variant ->
+        variant.enableAndroidTest = false
+    }
+}
+
 dependencies {
     implementation(libs.androidx.app.startup)
     implementation(libs.kotlinx.serialization.json)

core/network/src/main/AndroidManifest.xml

@@ -17,6 +17,19 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
     <application>
-
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            android:exported="false"
+            tools:node="merge">
+            <!-- Core Firebase App Initialization -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppInitializer"
+                android:value="androidx.startup" />
+            <!-- Other Firebase Initializers -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppCheckInitializer"
+                android:value="androidx.startup" />
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseRemoteConfigInitializer"
+                android:value="androidx.startup" />
+        </provider>
     </application>
-</manifest>
+</manifest>

core/network/src/main/res/xml/startup_initializers.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright 2025 The Android Open Source Project
+
+     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
+
+          https://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.
+-->
+<resources xmlns:android="http://schemas.android.com/apk/res/android">
+    <initializer
+        android:name="com.android.developers.androidify.startup.FirebaseAppCheckInitializer" />
+    <initializer
+        android:name="com.android.developers.androidify.startup.FirebaseRemoteConfigInitializer" />
+</resources>

core/testing/build.gradle.kts

@@ -39,6 +39,13 @@ android {
     }
 }
 
+// Explicitly disable the connectedAndroidTest task for this module
+androidComponents {
+    beforeVariants(selector().all()) { variant ->
+        variant.enableAndroidTest = false
+    }
+}
+
 dependencies {
     api(libs.kotlinx.coroutines.test)
     implementation(platform(libs.androidx.compose.bom))

core/util/build.gradle.kts

@@ -27,7 +27,6 @@ android {
 
     defaultConfig {
         minSdk = libs.versions.minSdk.get().toInt()
-        testInstrumentationRunner = "com.android.developers.testing.AndroidifyTestRunner"
     }
 
     compileOptions {
@@ -38,6 +37,12 @@ android {
         jvmTarget = libs.versions.jvmTarget.get()
     }
 }
+// Explicitly disable the connectedAndroidTest task for this module
+androidComponents {
+    beforeVariants(selector().all()) { variant ->
+        variant.enableAndroidTest = false
+    }
+}
 
 dependencies {
     implementation(platform(libs.androidx.compose.bom))
@@ -51,12 +56,6 @@ dependencies {
     implementation(libs.androidx.window.core)
     ksp(libs.hilt.compiler)
 
-    androidTestImplementation(platform(libs.androidx.compose.bom))
-    androidTestImplementation(libs.androidx.ui.test.junit4)
-    androidTestImplementation(libs.hilt.android.testing)
-    androidTestImplementation(project(":core:testing")) // Add dependency
-    kspAndroidTest(libs.hilt.compiler)
-
 //    debugImplementation(libs.androidx.ui.tooling)
 //    debugImplementation(libs.androidx.ui.test.manifest)
 }

data/build.gradle.kts

@@ -27,7 +27,6 @@ android {
 
     defaultConfig {
         minSdk = libs.versions.minSdk.get().toInt()
-        testInstrumentationRunner = "com.android.developers.testing.AndroidifyTestRunner"
     }
 
     compileOptions {
@@ -38,6 +37,12 @@ android {
         jvmTarget = libs.versions.jvmTarget.get()
     }
 }
+// Explicitly disable the connectedAndroidTest task for this module
+androidComponents {
+    beforeVariants(selector().all()) { variant ->
+        variant.enableAndroidTest = false
+    }
+}
 
 dependencies {
     implementation(project(":core:network"))
@@ -55,9 +60,4 @@ dependencies {
         exclude(group = "com.google.guava")
     }
     ksp(libs.hilt.compiler)
-
-    androidTestImplementation(libs.androidx.ui.test.junit4)
-    androidTestImplementation(libs.hilt.android.testing)
-    androidTestImplementation(project(":core:testing"))
-    kspAndroidTest(libs.hilt.compiler)
 }

feature/camera/build.gradle.kts

@@ -19,6 +19,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.ksp)
     alias(libs.plugins.hilt)
+    alias(libs.plugins.composeScreenshot)
 }
 
 android {
@@ -41,6 +42,8 @@ android {
         compose = true
     }
 
+    experimentalProperties["android.experimental.enableScreenshotTest"] = true
+
     testOptions {
         targetSdk = 36
     }
@@ -82,4 +85,5 @@ dependencies {
     kspAndroidTest(libs.hilt.compiler)
 
     debugImplementation(libs.androidx.ui.test.manifest)
+    screenshotTestImplementation(libs.androidx.ui.tooling)
 }

feature/camera/src/androidTest/AndroidManifest.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    <application>
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            android:exported="false"
+            tools:node="merge">
+            <!-- Remove Firebase App Initialization for tests -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppInitializer"
+                tools:node="remove" />
+            <!-- Remove Other Firebase Initializers for tests -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppCheckInitializer"
+                tools:node="remove" />
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseRemoteConfigInitializer"
+                tools:node="remove" />
+        </provider>
+    </application>
+</manifest>