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37 lines
1.2 KiB
Dart
37 lines
1.2 KiB
Dart
// Copyright 2014 The Flutter Authors. 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_api_samples/material/navigation_bar/navigation_bar.0.dart'
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as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Navigation bar updates destination on tap',
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(WidgetTester tester) async {
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await tester.pumpWidget(
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const example.NavigationBarApp(),
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);
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final NavigationBar navigationBarWidget = tester.firstWidget(find.byType(NavigationBar));
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/// NavigationDestinations must be rendered
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expect(find.text('Home'), findsOneWidget);
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expect(find.text('Business'), findsOneWidget);
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expect(find.text('School'), findsOneWidget);
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/// initial index must be zero
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expect(navigationBarWidget.selectedIndex, 0);
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/// switch to second tab
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await tester.tap(find.text('Business'));
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await tester.pumpAndSettle();
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expect(find.text('Page 2'), findsOneWidget);
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/// switch to third tab
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await tester.tap(find.text('School'));
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await tester.pumpAndSettle();
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expect(find.text('Page 3'), findsOneWidget);
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});
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}
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