| // 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/navigation_bar/navigation_bar.1.dart' |
| as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Navigation bar updates label behavior when tapping buttons', |
| (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.NavigationBarApp(), |
| ); |
| NavigationBar navigationBarWidget = tester.firstWidget(find.byType(NavigationBar)); |
| |
| expect(find.text('Label behavior: alwaysShow'), findsOneWidget); |
| |
| /// Test alwaysShow label behavior button. |
| await tester.tap(find.widgetWithText(ElevatedButton, 'alwaysShow')); |
| await tester.pumpAndSettle(); |
| |
| expect(find.text('Label behavior: alwaysShow'), findsOneWidget); |
| expect(navigationBarWidget.labelBehavior, NavigationDestinationLabelBehavior.alwaysShow); |
| |
| /// Test onlyShowSelected label behavior button. |
| await tester.tap(find.widgetWithText(ElevatedButton, 'onlyShowSelected')); |
| await tester.pumpAndSettle(); |
| |
| expect(find.text('Label behavior: onlyShowSelected'), findsOneWidget); |
| navigationBarWidget = tester.firstWidget(find.byType(NavigationBar)); |
| expect(navigationBarWidget.labelBehavior, NavigationDestinationLabelBehavior.onlyShowSelected); |
| |
| /// Test alwaysHide label behavior button. |
| await tester.tap(find.widgetWithText(ElevatedButton, 'alwaysHide')); |
| await tester.pumpAndSettle(); |
| |
| expect(find.text('Label behavior: alwaysHide'), findsOneWidget); |
| navigationBarWidget = tester.firstWidget(find.byType(NavigationBar)); |
| expect(navigationBarWidget.labelBehavior, NavigationDestinationLabelBehavior.alwaysHide); |
| }); |
| } |