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98 lines
3.0 KiB
Dart
98 lines
3.0 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/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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final _MockLiveTestWidgetsFlutterBinding binding = _MockLiveTestWidgetsFlutterBinding();
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testWidgets('Should print message on pointer events', (WidgetTester tester) async {
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final List<String?> printedMessages = <String?>[];
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int invocations = 0;
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await tester.pumpWidget(
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MaterialApp(
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home: Center(
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child: GestureDetector(
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onTap: () {
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invocations++;
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},
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child: const Text('Test'),
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),
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),
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),
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);
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final Size windowCenter = tester.binding.window.physicalSize /
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tester.binding.window.devicePixelRatio /
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2;
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final double windowCenterX = windowCenter.width;
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final double windowCenterY = windowCenter.height;
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final Offset widgetCenter = tester.getRect(find.byType(Text)).center;
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expect(widgetCenter.dx, windowCenterX);
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expect(widgetCenter.dy, windowCenterY);
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await binding.collectDebugPrints(printedMessages, () async {
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await tester.tap(find.byType(Text));
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});
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await tester.pump();
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expect(invocations, 0);
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expect(printedMessages, equals('''
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Some possible finders for the widgets at Offset(400.0, 300.0):
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find.text('Test')
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find.widgetWithText(RawGestureDetector, 'Test')
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find.byType(GestureDetector)
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find.byType(Center)
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find.widgetWithText(IgnorePointer, 'Test')
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find.byType(FadeTransition)
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find.byType(FractionalTranslation)
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find.byType(SlideTransition)
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find.widgetWithText(FocusTrap, 'Test')
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find.widgetWithText(PrimaryScrollController, 'Test')
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find.widgetWithText(PageStorage, 'Test')
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'''.trim().split('\n')));
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printedMessages.clear();
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await binding.collectDebugPrints(printedMessages, () async {
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await tester.tapAt(const Offset(1, 1));
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});
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expect(printedMessages, equals('''
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Some possible finders for the widgets at Offset(1.0, 1.0):
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find.byType(MouseRegion)
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find.byType(ExcludeSemantics)
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find.byType(BlockSemantics)
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find.byType(ModalBarrier)
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find.byType(Overlay)
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'''.trim().split('\n')));
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});
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}
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class _MockLiveTestWidgetsFlutterBinding extends LiveTestWidgetsFlutterBinding {
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@override
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TestBindingEventSource get pointerEventSource => TestBindingEventSource.device;
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List<String?>? _storeDebugPrints;
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@override
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DebugPrintCallback get debugPrintOverride {
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return _storeDebugPrints == null
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? super.debugPrintOverride
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: ((String? message, { int? wrapWidth }) => _storeDebugPrints!.add(message));
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}
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// Execute `task` while redirecting [debugPrint] to appending to `store`.
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Future<void> collectDebugPrints(List<String?>? store, AsyncValueGetter<void> task) async {
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_storeDebugPrints = store;
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try {
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await task();
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} finally {
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_storeDebugPrints = null;
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}
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}
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}
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