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CodeRabbit Generated Unit Tests: Add unit tests for PR changes #64

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150 changes: 150 additions & 0 deletions apps/design_system_gallery/test/app/gallery_app_test.dart
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Original file line number Diff line number Diff line change
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import 'package:design_system_gallery/app/gallery_app.dart';
import 'package:design_system_gallery/config/preview_configuration.dart';
import 'package:design_system_gallery/config/theme_configuration.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:provider/provider.dart';

void main() {
group('StreamDesignSystemGallery', () {
testWidgets('renders without errors', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
expect(find.byType(StreamDesignSystemGallery), findsOneWidget);
});

testWidgets('creates stateful widget', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
final state = tester.state<State<StreamDesignSystemGallery>>(
find.byType(StreamDesignSystemGallery),
);
expect(state, isNotNull);
});

testWidgets('provides ThemeConfiguration', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final themeConfig = Provider.of<ThemeConfiguration>(context, listen: false);
expect(themeConfig, isNotNull);
});

testWidgets('provides PreviewConfiguration', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final previewConfig = Provider.of<PreviewConfiguration>(context, listen: false);
expect(previewConfig, isNotNull);
});

testWidgets('creates MaterialApp', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();
expect(find.byType(MaterialApp), findsOneWidget);
});

testWidgets('MaterialApp has correct title', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final materialApp = tester.widget<MaterialApp>(find.byType(MaterialApp));
expect(materialApp.title, 'Stream Design System');
});

testWidgets('MaterialApp has debugShowCheckedModeBanner disabled', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final materialApp = tester.widget<MaterialApp>(find.byType(MaterialApp));
expect(materialApp.debugShowCheckedModeBanner, isFalse);
});

testWidgets('disposes configurations on unmount', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

// Pump a different widget to trigger dispose
await tester.pumpWidget(const SizedBox());

// If we get here without errors, dispose worked correctly
expect(find.byType(StreamDesignSystemGallery), findsNothing);
});

testWidgets('initializes with light theme by default', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final themeConfig = Provider.of<ThemeConfiguration>(context, listen: false);
expect(themeConfig.brightness, Brightness.light);
});

testWidgets('can toggle theme panel', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

// Verify initial state (should be shown by default)
final stateBefore = tester.state(find.byType(StreamDesignSystemGallery))
as dynamic;
expect(stateBefore.showThemePanel, isTrue);
});

testWidgets('MultiProvider wraps Consumer', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

expect(find.byType(MultiProvider), findsOneWidget);
expect(find.byType(Consumer<ThemeConfiguration>), findsOneWidget);
});

testWidgets('handles theme changes', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final themeConfig = Provider.of<ThemeConfiguration>(context, listen: false);

// Change to dark theme
themeConfig.brightness = Brightness.dark;
await tester.pumpAndSettle();

expect(themeConfig.brightness, Brightness.dark);
});

testWidgets('builds theme correctly', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final materialApp = tester.widget<MaterialApp>(find.byType(MaterialApp));
expect(materialApp.theme, isNotNull);
expect(materialApp.darkTheme, isNotNull);
});

testWidgets('sets correct theme mode for light theme', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final themeConfig = Provider.of<ThemeConfiguration>(context, listen: false);
themeConfig.brightness = Brightness.light;
await tester.pumpAndSettle();

final materialApp = tester.widget<MaterialApp>(find.byType(MaterialApp));
expect(materialApp.themeMode, ThemeMode.light);
});

testWidgets('sets correct theme mode for dark theme', (tester) async {
await tester.pumpWidget(const StreamDesignSystemGallery());
await tester.pumpAndSettle();

final context = tester.element(find.byType(MaterialApp));
final themeConfig = Provider.of<ThemeConfiguration>(context, listen: false);
themeConfig.brightness = Brightness.dark;
await tester.pumpAndSettle();

final materialApp = tester.widget<MaterialApp>(find.byType(MaterialApp));
expect(materialApp.themeMode, ThemeMode.dark);
});
});
}
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