| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'package:flutter/cupertino.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| import 'multi_view_testing.dart'; |
| |
| void main() { |
| testWidgets('Hot reload does not crash if ViewAnchor is used between ParentDataWidget and the render object it is applied to', (WidgetTester tester) async { |
| // Regression test for https://github.com/flutter/flutter/issues/142480. |
| Widget buildTest(String string) { |
| return Directionality( |
| textDirection: TextDirection.ltr, |
| child: Stack( |
| children: <Widget>[ |
| Positioned( // ParentDataWidget |
| right: 0, |
| bottom: 0, |
| child: ViewAnchor( |
| view: View( |
| view: FakeView(tester.view), |
| child: const Text('Side-view'), |
| ), |
| child: Text(string), // Text's RenderObject is the target for the ParentDataWidget above. |
| ), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| await tester.pumpWidget(buildTest('bottom-right')); |
| expect(tester.getBottomRight(find.text('bottom-right')), const Offset(800, 600)); |
| // Rebuild with a slightly different string to simulate a hot reload. |
| await tester.pumpWidget(buildTest('bottom-right-again')); |
| expect(find.text('bottom-right'), findsNothing); |
| expect(tester.getBottomRight(find.text('bottom-right-again')), const Offset(800, 600)); |
| }); |
| } |