53 lines
1.6 KiB
Dart
53 lines
1.6 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/semantics.dart';
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import 'package:flutter/services.dart' show SystemChannels;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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testWidgets('Semantic announcement', (WidgetTester tester) async {
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final log = <Map<dynamic, dynamic>>[];
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Future<dynamic> handleMessage(dynamic mockMessage) async {
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final message = mockMessage as Map<dynamic, dynamic>;
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log.add(message);
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}
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TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
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.setMockDecodedMessageHandler<dynamic>(SystemChannels.accessibility, handleMessage);
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await SemanticsService.sendAnnouncement(tester.view, 'announcement 1', TextDirection.ltr);
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await SemanticsService.sendAnnouncement(
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tester.view,
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'announcement 2',
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TextDirection.rtl,
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assertiveness: Assertiveness.assertive,
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);
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expect(
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log,
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equals(<Map<String, dynamic>>[
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<String, dynamic>{
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'type': 'announce',
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'data': <String, dynamic>{
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'viewId': tester.view.viewId,
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'message': 'announcement 1',
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'textDirection': 1,
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},
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},
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<String, dynamic>{
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'type': 'announce',
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'data': <String, dynamic>{
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'viewId': tester.view.viewId,
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'message': 'announcement 2',
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'textDirection': 0,
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'assertiveness': 1,
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},
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},
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]),
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);
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});
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}
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