Compass app (#2446)

compass_app/app/test/ui/auth/login_screen_test.dart

@@ -0,0 +1,63 @@
+// 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/ui/auth/login/view_models/login_viewmodel.dart';
+import 'package:compass_app/ui/auth/login/widgets/login_screen.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
+import 'package:mocktail_image_network/mocktail_image_network.dart';
+
+import '../../../testing/app.dart';
+import '../../../testing/fakes/repositories/fake_auth_repository.dart';
+import '../../../testing/mocks.dart';
+
+void main() {
+  group('LoginScreen test', () {
+    late LoginViewModel viewModel;
+    late MockGoRouter goRouter;
+    late FakeAuthRepository fakeAuthRepository;
+
+    setUp(() {
+      fakeAuthRepository = FakeAuthRepository();
+      viewModel = LoginViewModel(
+        authRepository: fakeAuthRepository,
+      );
+      goRouter = MockGoRouter();
+    });
+
+    Future<void> loadScreen(WidgetTester tester) async {
+      await testApp(
+        tester,
+        LoginScreen(viewModel: viewModel),
+        goRouter: goRouter,
+      );
+    }
+
+    testWidgets('should load screen', (WidgetTester tester) async {
+      await mockNetworkImages(() async {
+        await loadScreen(tester);
+        expect(find.byType(LoginScreen), findsOneWidget);
+      });
+    });
+
+    testWidgets('should perform login', (WidgetTester tester) async {
+      await mockNetworkImages(() async {
+        await loadScreen(tester);
+
+        // Repo should have no key
+        expect(fakeAuthRepository.token, null);
+
+        // Perform login
+        await tester.tap(find.text('Login'));
+        await tester.pumpAndSettle();
+
+        // Repo should have key
+        expect(fakeAuthRepository.token, 'TOKEN');
+
+        // Should navigate to home screen
+        verify(() => goRouter.go('/')).called(1);
+      });
+    });
+  });
+}