feat(mobile): iOS simulator smoke test + ci-mobile integration job

Author: cafca

.github/workflows/ci-mobile.yml

@@ -47,3 +47,48 @@ jobs:
       - name: Test (app)
         working-directory: mobile
         run: flutter test
+
+  test-mobile-ios:
+    name: Flutter integration tests (iOS simulator)
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+
+      - name: Install dependencies (plugin)
+        working-directory: packages/ferrostar_flutter
+        run: flutter pub get
+
+      - name: Install dependencies (app)
+        working-directory: mobile
+        run: flutter pub get
+
+      - name: Boot iPhone 17 simulator
+        run: |
+          UDID=$(xcrun simctl list devices available --json \
+            | python3 -c "
+          import json,sys
+          devs = json.load(sys.stdin)['devices']
+          for runtime, devices in devs.items():
+            for d in devices:
+              if 'iPhone 17' in d['name'] and d['isAvailable']:
+                print(d['udid']); exit()
+          ")
+          xcrun simctl boot "$UDID"
+          echo "SIM_UDID=$UDID" >> "$GITHUB_ENV"
+
+      - name: Enable Flutter SPM integration
+        working-directory: mobile
+        run: flutter config --enable-swift-package-manager
+
+      - name: Build (simulator, no codesign)
+        working-directory: mobile
+        run: flutter build ios --no-codesign --simulator
+
+      - name: Run integration smoke test
+        working-directory: mobile
+        run: flutter test integration_test/navigation_smoke_test.dart -d "$SIM_UDID"

mobile/integration_test/navigation_smoke_test.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+import 'package:beebeebike/main.dart' as app;
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  testWidgets('app launches and renders the map screen', (tester) async {
+    app.main();
+    await tester.pumpAndSettle(const Duration(seconds: 5));
+    expect(find.byType(Scaffold), findsWidgets);
+  });
+}

mobile/pubspec.yaml

@@ -28,6 +28,8 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
+  integration_test:
+    sdk: flutter
   flutter_lints: ^5.0.0
   build_runner: ^2.4.13
   freezed: ^2.5.7