Setup patrol integration tests

.github/workflows/integration-tests.yaml

@@ -0,0 +1,84 @@
+on:
+  pull_request:
+
+name: Integration
+
+jobs:
+  integration_test:
+    name: Integration Test
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: write
+      actions: write
+      checks: write
+      pull-requests: write
+
+    env:
+      USERNAME: ${{ secrets.USERNAME }}
+      PASSWORD: ${{ secrets.PASSWORD }}
+      SERVER_URL: ${{ secrets.SERVER_URL }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Authenticate to Google Cloud
+        uses: google-github-actions/auth@v2
+        with:
+          project_id: ${{ secrets.GOOGLE_CLOUD_PROJECT_ID }}
+          workload_identity_provider: ${{ secrets.GOOGLE_CLOUD_WORKLOAD_IDENTITY_PROVIDER_ID }}
+          service_account: ${{ secrets.GOOGLE_CLOUD_SERVICE_ACCOUNT }}
+
+      - name: Setup Cloud SDK
+        uses: google-github-actions/setup-gcloud@v2
+
+      - name: Setup flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: "3.24.0"
+          channel: "stable"
+          cache: true
+          cache-key: "flutter-:os:-:channel:-:version:-:arch:-:hash:-${{ hashFiles('**/pubspec.lock') }}"
+
+      - name: Set up Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: 17
+          distribution: "temurin"
+
+      - uses: webfactory/[email protected]
+        with:
+          ssh-private-key: ${{ secrets.SSH_KEY }}
+
+      - name: setup project
+        run:
+          flutter pub get && flutter pub run build_runner build --delete-conflicting-outputs
+
+      - name: Run Patrol Tests
+        shell: bash
+
+        env:
+          USERNAME: ${{ secrets.USERNAME }}
+          PASSWORD: ${{ secrets.PASSWORD }}
+          SERVER_URL: ${{ secrets.SERVER_URL }}
+        run: |
+
+          dart pub global activate patrol_cli
+
+          flutter build apk --config-only
+
+          patrol build android \
+          -v \
+          --dart-define=USERNAME="$USERNAME" \
+          --dart-define=SERVER_URL="$SERVER_URL" \
+          --dart-define=PASSWORD="$PASSWORD"
+
+          gcloud firebase test android run \
+          --type instrumentation \
+          --app build/app/outputs/apk/debug/app-debug.apk \
+          --test build/app/outputs/apk/androidTest/debug/app-debug-androidTest.apk \
+          --device model=MediumPhone.arm,version=34 \
+          --timeout 5m \
+          --use-orchestrator \
+          --environment-variables clearPackageData=true

android/app/build.gradle

@@ -51,6 +51,8 @@ android {
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
+        testInstrumentationRunner "pl.leancode.patrol.PatrolJUnitRunner"
+        testInstrumentationRunnerArguments clearPackageData: "true"
     }
 
     signingConfigs {
@@ -75,6 +77,9 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    testOptions {
+        execution "ANDROIDX_TEST_ORCHESTRATOR"
+    }
 }
 
 flutter {
@@ -88,6 +93,7 @@ dependencies {
     androidTestImplementation 'androidx.test:runner:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
     implementation 'androidx.multidex:multidex:2.0.1'
+    androidTestUtil "androidx.test:orchestrator:1.5.1"
 }
 
 apply plugin: 'com.google.gms.google-services'

android/app/src/androidTest/java/app/twake/android/chat/MainActivityTest.java

@@ -0,0 +1,34 @@
+package app.twake.android.chat;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+import pl.leancode.patrol.PatrolJUnitRunner;
+
+@RunWith(Parameterized.class)
+public class MainActivityTest {
+    @Parameters(name = "{0}")
+    public static Object[] testCases() {
+        PatrolJUnitRunner instrumentation = (PatrolJUnitRunner) InstrumentationRegistry.getInstrumentation();
+        // replace "MainActivity.class" with "io.flutter.embedding.android.FlutterActivity.class"
+        // if in AndroidManifest.xml in manifest/application/activity you have
+        //     android:name="io.flutter.embedding.android.FlutterActivity"
+        instrumentation.setUp(MainActivity.class);
+        instrumentation.waitForPatrolAppService();
+        return instrumentation.listDartTests();
+    }
+
+    public MainActivityTest(String dartTestName) {
+        this.dartTestName = dartTestName;
+    }
+
+    private final String dartTestName;
+
+    @Test
+    public void runDartTest() {
+        PatrolJUnitRunner instrumentation = (PatrolJUnitRunner) InstrumentationRegistry.getInstrumentation();
+        instrumentation.runDartTest(dartTestName);
+    }
+}

docs/adr/0025-add-patrol-integration-tests.md

@@ -0,0 +1,34 @@
+# 25. Add patrol integration tests
+
+Date: 2024-12-24
+
+## Status
+
+**Accepted**
+
+## Context
+
+ - The need for integration tests to handle real scenarios
+ - The need to handle interactions with native views in tests such as notification popups or webviews 
+ - Mocking matrix's behaviour using mockito causes a lot of unexpected issues 
+
+## Decision
+
+- Add integration tests using Patrol
+
+### Why Patrol?
+
+- Native Interaction: Patrol offers reliable tools for interacting with native views such as
+  notification popups, platform alerts, or webviews—functionality that can otherwise be cumbersome
+  with basic Flutter integration tests.
+- Reduced Unpredictability: Since Patrol focuses on real-device or simulator-based tests, it helps
+  reduce the unpredictability that can arise from heavy mocking with tools like Mockito.
+## Consequences
+
+ - Setup patrol locally:
+    - Run `dart pub global activate patrol_cli` to enable Patrol CLI
+ - Run tests locally:
+    - to run tests we use `patrol test -t path/to/test --dart-define=arg1='value' `
+   - to run tests in dev mode this will enable hot restarting the tests we
+     use : `patrol develop -t path/to/test --dart-define=arg1='value' `
+  arguments are passed for each test using `dart-define` as shown above

integration_test/base/base_scenario.dart

@@ -0,0 +1,15 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:patrol/patrol.dart';
+
+abstract class BaseScenario {
+  final PatrolIntegrationTester $;
+
+  const BaseScenario(this.$);
+
+  Future<void> execute();
+
+  Future<void> expectViewVisible(PatrolFinder patrolFinder) async {
+    await $.waitUntilVisible(patrolFinder);
+    expect(patrolFinder, findsWidgets);
+  }
+}