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d041f3ead5
- force the time dilation to 1.0 for the Widget tests, so that a local change doesn't break all the tests during development. - add missing license block to all the files. - set ui.window.onBeginFrame to null when you use WidgetTester, so that the engine doesn't trigger any confusing frames after our fake frames.
81 lines
2.5 KiB
Dart
81 lines
2.5 KiB
Dart
// Copyright 2015 The Chromium 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/widgets.dart';
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import 'package:test/test.dart';
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import 'widget_tester.dart';
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int selectedIndex = 2;
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Widget buildFrame({ List<String> tabs, bool isScrollable: false }) {
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return new TabBar(
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labels: tabs.map((String tab) => new TabLabel(text: tab)).toList(),
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selectedIndex: selectedIndex,
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isScrollable: isScrollable,
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onChanged: (int tabIndex) {
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selectedIndex = tabIndex;
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}
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);
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}
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void main() {
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test('TabBar tap selects tab', () {
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testWidgets((WidgetTester tester) {
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List<String> tabs = <String>['A', 'B', 'C'];
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selectedIndex = 2;
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: false));
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expect(tester.findText('A'), isNotNull);
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expect(tester.findText('B'), isNotNull);
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expect(tester.findText('C'), isNotNull);
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expect(selectedIndex, equals(2));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: false));
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tester.tap(tester.findText('B'));
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tester.pump();
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expect(selectedIndex, equals(1));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: false));
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tester.tap(tester.findText('C'));
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tester.pump();
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expect(selectedIndex, equals(2));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: false));
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tester.tap(tester.findText('A'));
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tester.pump();
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expect(selectedIndex, equals(0));
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});
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});
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test('Scrollable TabBar tap selects tab', () {
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testWidgets((WidgetTester tester) {
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List<String> tabs = <String>['A', 'B', 'C'];
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selectedIndex = 2;
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: true));
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expect(tester.findText('A'), isNotNull);
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expect(tester.findText('B'), isNotNull);
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expect(tester.findText('C'), isNotNull);
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expect(selectedIndex, equals(2));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: true));
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tester.tap(tester.findText('B'));
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tester.pump();
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expect(selectedIndex, equals(1));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: true));
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tester.tap(tester.findText('C'));
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tester.pump();
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expect(selectedIndex, equals(2));
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tester.pumpWidget(buildFrame(tabs: tabs, isScrollable: true));
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tester.tap(tester.findText('A'));
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tester.pump();
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expect(selectedIndex, equals(0));
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});
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});
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}
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