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0fb84e96c7
* Future<void> main * Future<void>.delayed * prefer_void_to_Null * address review comments
39 lines
1.2 KiB
Dart
39 lines
1.2 KiB
Dart
// Copyright 2017 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_test/flutter_test.dart';
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import '../widgets/gestures.dart';
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void main() {
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testWidgets('Tap on center change color', (WidgetTester tester) async {
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await tester.pumpWidget(Directionality(
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textDirection: TextDirection.ltr,
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child: GestureDemo(),
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));
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final Finder finder = find.byType(GestureDemo);
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MaterialColor getSwatch() => tester.state<GestureDemoState>(finder).swatch;
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Future<void> tap() async {
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final Offset topLeft = tester.getTopLeft(finder);
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await tester.tapAt(tester.getSize(finder).center(topLeft));
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await tester.pump(const Duration(seconds: 1));
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}
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// initial swatch
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expect(getSwatch(), GestureDemoState.kSwatches[0]);
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// every tap change swatch
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for (int i = 1; i < GestureDemoState.kSwatches.length; i++) {
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await tap();
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expect(getSwatch(), GestureDemoState.kSwatches[i]);
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}
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// tap on last swatch display first swatch
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await tap();
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expect(getSwatch(), GestureDemoState.kSwatches[0]);
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});
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}
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