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samples/testing_app/test/favorites_test.dart
Eric Windmill 2999d738b8 Dart 3.9 / Flutter 3.35 [first LLM release] (#2714)
I got carried away with Gemini and basically rewrote CI and the release
process for the new LLM reality. This work was largely completed by
Gemini.

- Bump all SDK versions to the current beta (3.9.0-0)
- Run `flutter channel beta`
- Wrote `ci_script.dart` to replace the bash scripts
- Converted repository to pub workspace #2499 
- Added llm.md and release.md
- Added redirect for deprecated Samples Index

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).
2025-08-14 12:26:24 -07:00

74 lines
2.0 KiB
Dart

// Copyright 2020 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:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:provider/provider.dart';
import 'package:testing_app/models/favorites.dart';
import 'package:testing_app/screens/favorites.dart';
late Favorites favoritesList;
Widget createFavoritesScreen() => ChangeNotifierProvider<Favorites>(
create: (context) {
favoritesList = Favorites();
return favoritesList;
},
child: const MaterialApp(home: FavoritesPage()),
);
void addItems() {
for (var i = 0; i < 5; i++) {
favoritesList.add(i);
}
}
void main() {
group('Favorites Page Widget Tests', () {
testWidgets('Test if Placeholder shows in case of empty list', (
tester,
) async {
await tester.pumpWidget(createFavoritesScreen());
// Verify if the placeholder text shows up.
expect(find.text('No favorites added.'), findsOneWidget);
});
testWidgets('Test if ListView shows up', (tester) async {
await tester.pumpWidget(createFavoritesScreen());
addItems();
await tester.pumpAndSettle();
// Verify if ListView shows up.
expect(find.byType(ListView), findsOneWidget);
});
testWidgets('Testing Remove Button', (tester) async {
await tester.pumpWidget(createFavoritesScreen());
addItems();
await tester.pumpAndSettle();
// Get the total number of items available.
final totalItems = tester
.widgetList(find.byIcon(Icons.close))
.length;
// Remove one item.
await tester.tap(find.byIcon(Icons.close).first);
await tester.pumpAndSettle();
// Check if removed properly.
expect(
tester.widgetList(find.byIcon(Icons.close)).length,
lessThan(totalItems),
);
// Verify if the appropriate message is shown.
expect(find.text('Removed from favorites.'), findsOneWidget);
});
});
}