| // Copyright 2014 The Flutter Authors. 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_api_samples/material/bottom_navigation_bar/bottom_navigation_bar.1.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('BottomNavigationBar Updates Screen Content', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.BottomNavigationBarExampleApp(), |
| ); |
| |
| expect(find.widgetWithText(AppBar, 'BottomNavigationBar Sample'), findsOneWidget); |
| expect(find.byType(BottomNavigationBar), findsOneWidget); |
| expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget); |
| |
| await tester.tap(find.byIcon(Icons.business)); |
| await tester.pumpAndSettle(); |
| expect(find.widgetWithText(Center, 'Index 1: Business'), findsOneWidget); |
| |
| await tester.tap(find.byIcon(Icons.school)); |
| await tester.pumpAndSettle(); |
| expect(find.widgetWithText(Center, 'Index 2: School'), findsOneWidget); |
| |
| await tester.tap(find.byIcon(Icons.settings)); |
| await tester.pumpAndSettle(); |
| expect(find.widgetWithText(Center, 'Index 3: Settings'), findsOneWidget); |
| |
| // Verify we can go back |
| await tester.tap(find.byIcon(Icons.home)); |
| await tester.pumpAndSettle(); |
| expect(find.widgetWithText(Center, 'Index 0: Home'), findsOneWidget); |
| }); |
| } |