| // 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/material.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter/widgets.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| import 'semantics_tester.dart'; |
| |
| void main() { |
| testWidgets('has only root node if surface size is 0x0', (WidgetTester tester) async { |
| final SemanticsTester semantics = SemanticsTester(tester); |
| |
| await tester.pumpWidget(Semantics( |
| selected: true, |
| )); |
| |
| expect(semantics, hasSemantics( |
| TestSemantics( |
| id: 0, |
| rect: const Rect.fromLTRB(0.0, 0.0, 2400.0, 1800.0), |
| children: <TestSemantics>[ |
| TestSemantics( |
| id: 1, |
| rect: const Rect.fromLTRB(0.0, 0.0, 800.0, 600.0), |
| flags: <SemanticsFlag>[SemanticsFlag.isSelected], |
| ), |
| ], |
| ), ignoreTransform: true, |
| )); |
| |
| await tester.binding.setSurfaceSize(const Size(0.0, 0.0)); |
| await tester.pumpAndSettle(); |
| |
| expect(semantics, hasSemantics( |
| TestSemantics( |
| id: 0, |
| rect: const Rect.fromLTRB(0.0, 0.0, 0.0, 0.0), |
| ), ignoreTransform: true, |
| )); |
| |
| await tester.binding.setSurfaceSize(null); |
| semantics.dispose(); |
| }); |
| } |