snapshot of https://github.com/flutter/samples.git (main, 2026-09-16; blobs > 131072B omitted)

compass_app/app/test/ui/home/widgets/home_screen_test.dart

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+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:compass_app/routing/routes.dart';
+import 'package:compass_app/ui/auth/logout/view_models/logout_viewmodel.dart';
+import 'package:compass_app/ui/home/view_models/home_viewmodel.dart';
+import 'package:compass_app/ui/home/widgets/home_screen.dart';
+import 'package:compass_app/utils/result.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
+
+import '../../../../testing/app.dart';
+import '../../../../testing/fakes/repositories/fake_auth_repository.dart';
+import '../../../../testing/fakes/repositories/fake_booking_repository.dart';
+import '../../../../testing/fakes/repositories/fake_itinerary_config_repository.dart';
+import '../../../../testing/fakes/repositories/fake_user_repository.dart';
+import '../../../../testing/mocks.dart';
+import '../../../../testing/models/booking.dart';
+
+void main() {
+  group('HomeScreen tests', () {
+    late HomeViewModel viewModel;
+    late LogoutViewModel logoutViewModel;
+    late MockGoRouter goRouter;
+    late FakeBookingRepository bookingRepository;
+
+    setUp(() {
+      bookingRepository = FakeBookingRepository()..createBooking(kBooking);
+      viewModel = HomeViewModel(
+        bookingRepository: bookingRepository,
+        userRepository: FakeUserRepository(),
+      );
+      logoutViewModel = LogoutViewModel(
+        authRepository: FakeAuthRepository(),
+        itineraryConfigRepository: FakeItineraryConfigRepository(),
+      );
+      goRouter = MockGoRouter();
+      when(() => goRouter.push(any())).thenAnswer((_) => Future.value(null));
+    });
+
+    Future<void> loadWidget(WidgetTester tester) async {
+      await testApp(
+        tester,
+        HomeScreen(viewModel: viewModel, logoutViewModel: logoutViewModel),
+        goRouter: goRouter,
+      );
+    }
+
+    testWidgets('should load screen', (tester) async {
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      expect(find.byType(HomeScreen), findsOneWidget);
+    });
+
+    testWidgets('should show user name', (tester) async {
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      expect(find.text('NAME\'s Trips'), findsOneWidget);
+    });
+
+    testWidgets('should navigate to search', (tester) async {
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      // Tap on create a booking FAB
+      await tester.tap(find.byKey(const ValueKey('booking-button')));
+      await tester.pumpAndSettle();
+
+      // Should navigate to results screen
+      verify(() => goRouter.go(Routes.search)).called(1);
+    });
+
+    testWidgets('should open existing booking', (tester) async {
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      // Tap on booking (created from kBooking)
+      await tester.tap(find.text('name1, Europe'));
+      await tester.pumpAndSettle();
+
+      // Should navigate to results screen
+      verify(() => goRouter.push(Routes.bookingWithId(0))).called(1);
+    });
+
+    testWidgets('should delete booking', (tester) async {
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      // Swipe on booking (created from kBooking)
+      await tester.drag(find.text('name1, Europe'), const Offset(-1000, 0));
+      await tester.pumpAndSettle();
+
+      // Existing booking should be gone
+      expect(find.text('name1, Europe'), findsNothing);
+
+      // Booking should be deleted from repository
+      expect(bookingRepository.bookings, isEmpty);
+    });
+
+    testWidgets('fail to delete booking', (tester) async {
+      // Create a ViewModel with a repository that will fail to delete
+      viewModel = HomeViewModel(
+        bookingRepository: _BadFakeBookingRepository()..createBooking(kBooking),
+        userRepository: FakeUserRepository(),
+      );
+      await loadWidget(tester);
+      await tester.pumpAndSettle();
+
+      // Swipe on booking (created from kBooking)
+      await tester.drag(find.text('name1, Europe'), const Offset(-1000, 0));
+      await tester.pumpAndSettle();
+
+      // Existing booking should be there
+      expect(find.text('name1, Europe'), findsOneWidget);
+    });
+  });
+}
+
+class _BadFakeBookingRepository extends FakeBookingRepository {
+  @override
+  Future<Result<void>> delete(int id) async {
+    return Result.error(Exception('Failed to delete booking'));
+  }
+}