car-interface-android/test/jellyfin_genre_dialog_test.dart

import 'package:cardash_launcher/core/theme/app_theme.dart';
import 'package:cardash_launcher/data/models/jellyfin_library.dart';
import 'package:cardash_launcher/data/services/jellyfin_library_service.dart';
import 'package:cardash_launcher/features/settings/jellyfin_genre_dialog.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

import 'jellyfin_fakes.dart';

void main() {
  testWidgets('groups genres, caps at five and returns the selection', (
    tester,
  ) async {
    await tester.binding.setSurfaceSize(const Size(1024, 700));
    addTearDown(() => tester.binding.setSurfaceSize(null));

    final gateway = FakeJellyfinLibraryGateway()
      ..genres = const ['Metal', 'Rock', 'Jazz', 'Pop', 'Folk', 'Blues'];
    final library = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );
    List<JellyfinGenreSelection>? result;

    await tester.pumpWidget(
      MaterialApp(
        theme: AppTheme.light(),
        home: Scaffold(
          body: Builder(
            builder: (context) => Center(
              child: ElevatedButton(
                onPressed: () async {
                  result = await showJellyfinGenreDialog(
                    context,
                    library: library,
                    selected: const [],
                  );
                },
                child: const Text('Open genres'),
              ),
            ),
          ),
        ),
      ),
    );

    await tester.tap(find.text('Open genres'));
    await tester.pumpAndSettle();

    expect(find.text('Random genres'), findsOneWidget);
    expect(find.text('0 / 5'), findsOneWidget);
    expect(find.text('Metal'), findsOneWidget);
    expect(find.text('Rock'), findsOneWidget);
    expect(find.text('Jazz'), findsOneWidget);
    expect(find.text('Pop'), findsOneWidget);
    expect(find.text('Folk'), findsOneWidget);
    expect(find.text('Blues'), findsOneWidget);

    for (var index = 0; index < 5; index++) {
      await tester.tap(find.byType(Checkbox).at(index));
      await tester.pump();
    }

    expect(find.text('5 / 5'), findsOneWidget);
    expect(find.text('Deselect one to choose another.'), findsOneWidget);
    final sixth = tester.widget<Checkbox>(find.byType(Checkbox).at(5));
    expect(sixth.onChanged, isNull);

    await tester.tap(find.text('Save'));
    await tester.pumpAndSettle();

    expect(result, isNotNull);
    expect(result!.length, 5);
    expect(result!.map((entry) => entry.label), [
      'Metal',
      'Rock',
      'Jazz',
      'Pop',
      'Folk',
    ]);
  });
}