eatvio_app/test/features/diets/presentation/widgets/basic_widget_test.dart

import 'package:eatvio_app/core/app_config.dart';
import 'package:eatvio_app/core/app_initializer.dart';
import 'package:eatvio_app/core/locator_service.dart';
import 'package:eatvio_app/core/theme/theme_helper.dart';
import 'package:eatvio_app/features/diets/repositories/diet_repository.dart';
import 'package:eatvio_app/features/feed/models/diets_pagination_model.dart';
import 'package:eatvio_app/features/feed/presentation/bloc/diets_cubit/diets_cubit.dart';
import 'package:eatvio_app/features/feed/presentation/bloc/diets_cubit/diets_state.dart';
import 'package:eatvio_app/features/feed/presentation/widgets/diets.dart';
import 'package:eatvio_app/features/feed/presentation/widgets/diets_widget.dart';
import 'package:eatvio_app/features/feed/repositories/feed_repository.dart';
import 'package:eatvio_app/generated/l10n.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_portal/flutter_portal.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mockito/annotations.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:network_image_mock/network_image_mock.dart';
import 'package:visibility_detector/visibility_detector.dart';

import 'basic_widget_test.mocks.dart';

@GenerateNiceMocks([MockSpec<FeedRepository>(), MockSpec<DietRepository>()])
void main() {
  group('Diets Basic Widget Tests', () {
    late MockFeedRepository mockFeedRepository;
    late MockDietRepository mockDietRepository;
    late DietsCubit dietsCubit;

    const testDiet = Diet(
      id: 1,
      slug: 'test-diet',
      name: 'Test Diet',
      image: 'test-image.jpg',
      duration: 30,
      state: DietState.active,
      type: DietType(light: false, veg: false, carb: false, meat: false),
      details: 'Test diet description',
      dailySchedule: {},
      author: Author(authorSlug: '', authorName: '', authorProfileIcon: 'https://example.com/icon.jpg', authorIsMe: false),
      totalLikes: 1,
      totalViews: 1,
      totalComments: 1,
      wasLikedByMe: false,
      isFavorite: false,
      dailyNutrition: [],
    );

    setUp(() async {
      await sl.reset();
      dotenv.loadFromString(envString: 'DEV_BASE_URL=http://localhost\nBASE_URL=http://localhost');
      mockFeedRepository = MockFeedRepository();
      mockDietRepository = MockDietRepository();
      dietsCubit = DietsCubit(feedRepository: mockFeedRepository, dietsRepository: mockDietRepository);
      sl.registerLazySingleton<AppConfig>(() => AppConfig(buildType: AppBuildType.tests)..setBaseUrl('http://localhost'));
      VisibilityDetectorController.instance.updateInterval = Duration.zero;
    });

    tearDown(() async {
      await Future.delayed(const Duration(milliseconds: 100));
      if (!dietsCubit.isClosed) {
        dietsCubit.close();
      }
    });

    Widget createTestWidget(Widget child, {bool wrapInScaffold = true}) {
      final widget = BlocProvider<DietsCubit>(
        create: (context) => dietsCubit,
        child: Portal(
          child: wrapInScaffold
              ? Scaffold(body: SingleChildScrollView(child: child))
              : SizedBox(width: 800, height: 1200, child: SingleChildScrollView(child: child)),
        ),
      );
      return MaterialApp(
        theme: ThemeHelper().themeData(),
        localizationsDelegates: const [
          S.delegate,
          GlobalMaterialLocalizations.delegate,
          GlobalWidgetsLocalizations.delegate,
          GlobalCupertinoLocalizations.delegate,
        ],
        supportedLocales: const [Locale('ru')],
        home: widget,
      );
    }

    Widget createDietsTestWidget(Widget child) {
      return MaterialApp(
        theme: ThemeHelper().themeData(),
        localizationsDelegates: const [
          S.delegate,
          GlobalMaterialLocalizations.delegate,
          GlobalWidgetsLocalizations.delegate,
          GlobalCupertinoLocalizations.delegate,
        ],
        supportedLocales: const [Locale('ru')],
        home: Portal(
          child: Scaffold(
            body: BlocProvider<DietsCubit>(
              create: (context) => dietsCubit,
              child: LayoutBuilder(
                builder: (context, constraints) => SizedBox(
                  width: constraints.maxWidth > 0 ? constraints.maxWidth : 800,
                  height: constraints.maxHeight > 0 ? constraints.maxHeight : 600,
                  child: child,
                ),
              ),
            ),
          ),
        ),
      );
    }

    testWidgets('should create DietsCubit successfully', (WidgetTester tester) async {
      // Arrange & Act
      final cubit = DietsCubit(feedRepository: mockFeedRepository, dietsRepository: mockDietRepository);

      // Assert
      expect(cubit, isA<DietsCubit>());
      expect(cubit.state.dietsList, isEmpty);

      cubit.close();
    });

    testWidgets('should display DietsWidget with diet name', (WidgetTester tester) async {
      await mockNetworkImagesFor(() async {
        // Arrange
        dietsCubit.emit(DietsState.initial().copyWith(dietsList: [testDiet], isLoading: false));
        const widget = DietsWidget(diet: testDiet, index: 0);

        // Act
        await tester.pumpWidget(createTestWidget(widget));
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 100));

        // Assert
        expect(find.text('Test Diet'), findsOneWidget);
        expect(find.byType(DietsWidget), findsOneWidget);
      });
      await tester.pump(const Duration(milliseconds: 600));
    });

    testWidgets('should display DietsWidget with description when details are present', (WidgetTester tester) async {
      await mockNetworkImagesFor(() async {
        // Arrange
        dietsCubit.emit(DietsState.initial().copyWith(dietsList: [testDiet], isLoading: false));
        const widget = DietsWidget(diet: testDiet, index: 0);

        // Act
        await tester.pumpWidget(createTestWidget(widget));
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 100));

        // Assert
        expect(find.text('Test Diet'), findsOneWidget);
        expect(find.byType(DietsWidget), findsOneWidget);
      });
      await tester.pump(const Duration(milliseconds: 600));
    });

    testWidgets('should display DietsWidget structure correctly', (WidgetTester tester) async {
      await mockNetworkImagesFor(() async {
        // Arrange
        dietsCubit.emit(DietsState.initial().copyWith(dietsList: [testDiet], isLoading: false));
        const widget = DietsWidget(diet: testDiet, index: 0);

        // Act
        await tester.pumpWidget(createTestWidget(widget));
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 100));

        // Assert
        expect(find.byType(DietsWidget), findsOneWidget);
        expect(find.text('Test Diet'), findsOneWidget);
      });
      await tester.pump(const Duration(milliseconds: 600));
    });

    testWidgets('should display Diets widget with loading state', (WidgetTester tester) async {
      // Arrange
      dietsCubit.emit(DietsState.initial());
      final widget = Diets(handleVisibility: ({required visibleFraction, required id, required type}) {});

      // Act
      await tester.pumpWidget(createDietsTestWidget(widget));
      await tester.pump();

      // Assert
      expect(find.byType(Diets), findsOneWidget);
    });

    testWidgets('should display Diets widget with loaded state', (WidgetTester tester) async {
      await mockNetworkImagesFor(() async {
        // Arrange
        dietsCubit.emit(DietsState.initial().copyWith(dietsList: [testDiet], isLoading: false));
        final widget = Diets(handleVisibility: ({required visibleFraction, required id, required type}) {});

        // Act
        await tester.pumpWidget(createDietsTestWidget(widget));
        await tester.pump();

        // Assert
        expect(find.byType(Diets), findsOneWidget);
        expect(find.byType(RefreshIndicator), findsOneWidget);
        expect(find.byType(ListView), findsOneWidget);
      });
      await tester.pump(const Duration(milliseconds: 600));
    });

    testWidgets('should display Diets widget with error state', (WidgetTester tester) async {
      // Arrange
      dietsCubit.emit(DietsState.initial().copyWith(isLoading: false, errorMessage: 'Error message'));
      final widget = Diets(handleVisibility: ({required visibleFraction, required id, required type}) {});

      // Act
      await tester.pumpWidget(createDietsTestWidget(widget));
      await tester.pump();

      // Assert
      expect(find.byType(Diets), findsOneWidget);
    });

    testWidgets('should display Diets widget with multiple diets', (WidgetTester tester) async {
      await mockNetworkImagesFor(() async {
        // Arrange
        final testDiet2 = testDiet.copyWith(id: 2, name: 'Test Diet 2');
        dietsCubit.emit(DietsState.initial().copyWith(dietsList: [testDiet, testDiet2], isLoading: false));
        final widget = Diets(handleVisibility: ({required visibleFraction, required id, required type}) {});

        // Act
        await tester.pumpWidget(createDietsTestWidget(widget));
        await tester.pump();

        // Assert
        expect(find.byType(Diets), findsOneWidget);
        expect(find.byType(ListView), findsOneWidget);
      });
      await tester.pump(const Duration(milliseconds: 600));
    });
  });
}