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The widget under test already contains a MaterialApp, so there's no need to wrap it again with one in the test. In fact, the additional MaterialApp could hide problems in the widget under test.
28 lines
1.0 KiB
Dart
28 lines
1.0 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/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/basic/mouse_region.on_exit.0.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('MouseRegion detects mouse hover', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.MouseRegionApp(),
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);
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Container container = tester.widget<Container>(find.byType(Container));
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expect(container.decoration, const BoxDecoration(color: Colors.blue));
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final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
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await gesture.addPointer();
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await gesture.moveTo(tester.getCenter(find.byType(Container)));
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await tester.pump();
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container = tester.widget<Container>(find.byType(Container));
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expect(container.decoration, const BoxDecoration(color: Colors.yellow));
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});
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}
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