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52 lines
1.8 KiB
Dart
52 lines
1.8 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/tabs/tab_bar.1.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Switch tabs in the TabBar', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.TabBarApp(),
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);
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final TabBar tabBar = tester.widget<TabBar>(find.byType(TabBar));
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expect(tabBar.tabs.length, 3);
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final Finder tab1 = find.widgetWithIcon(Tab, Icons.cloud_outlined);
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final Finder tab2 = find.widgetWithIcon(Tab, Icons.beach_access_sharp);
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final Finder tab3 = find.widgetWithIcon(Tab, Icons.brightness_5_sharp);
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const String tabBarViewText1 = "It's cloudy here";
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const String tabBarViewText2 = "It's rainy here";
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const String tabBarViewText3 = "It's sunny here";
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expect(find.text(tabBarViewText1), findsOneWidget);
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expect(find.text(tabBarViewText2), findsNothing);
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expect(find.text(tabBarViewText3), findsNothing);
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await tester.tap(tab1);
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await tester.pumpAndSettle();
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expect(find.text(tabBarViewText1), findsOneWidget);
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expect(find.text(tabBarViewText2), findsNothing);
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expect(find.text(tabBarViewText3), findsNothing);
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await tester.tap(tab2);
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await tester.pumpAndSettle();
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expect(find.text(tabBarViewText1), findsNothing);
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expect(find.text(tabBarViewText2), findsOneWidget);
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expect(find.text(tabBarViewText3), findsNothing);
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await tester.tap(tab3);
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await tester.pumpAndSettle();
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expect(find.text(tabBarViewText1), findsNothing);
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expect(find.text(tabBarViewText2), findsNothing);
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expect(find.text(tabBarViewText3), findsOneWidget);
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});
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}
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