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70 lines
2.4 KiB
70 lines
2.4 KiB
// Copyright 2020 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:provider/provider.dart';
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import 'package:testing_app/models/favorites.dart';
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import 'package:testing_app/screens/home.dart';
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Widget createHomeScreen() => ChangeNotifierProvider<Favorites>(
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create: (context) => Favorites(),
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child: const MaterialApp(
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home: HomePage(),
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),
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);
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void main() {
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group('Home Page Widget Tests', () {
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testWidgets('Testing if ListView shows up', (tester) async {
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await tester.pumpWidget(createHomeScreen());
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// Verify if ListView shows up.
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expect(find.byType(ListView), findsOneWidget);
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});
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testWidgets('Testing Scrolling', (tester) async {
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await tester.pumpWidget(createHomeScreen());
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// Check if "Item 0" is present on the screen.
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expect(find.text('Item 0'), findsOneWidget);
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// Fling i.e scroll down.
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await tester.fling(find.byType(ListView), const Offset(0, -200), 3000);
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await tester.pumpAndSettle();
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// Check if "Item 0" disappeared.
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expect(find.text('Item 0'), findsNothing);
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});
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testWidgets('Testing IconButtons', (tester) async {
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await tester.pumpWidget(createHomeScreen());
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// Check if any solid favorite icon is present.
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expect(find.byIcon(Icons.favorite), findsNothing);
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// Tap the first item's icon to add it to favorites.
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await tester.tap(find.byIcon(Icons.favorite_border).first);
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await tester.pumpAndSettle(const Duration(seconds: 1));
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// Verify if the appropriate message is shown.
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expect(find.text('Added to favorites.'), findsOneWidget);
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// Check if any solid favorite icon shows up.
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expect(find.byIcon(Icons.favorite), findsWidgets);
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// Tap the first item's icon which has filled icon to
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// remove it from favorites.
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await tester.tap(find.byIcon(Icons.favorite).first);
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await tester.pumpAndSettle(const Duration(seconds: 1));
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// Verify if the appropriate message is shown.
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expect(find.text('Removed from favorites.'), findsOneWidget);
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// Check if the filled icon changes back to bordered icon.
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expect(find.byIcon(Icons.favorite), findsNothing);
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});
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});
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}
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