// Copyright 2017 The Chromium 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 'dart:ui' show TextDirection; import 'package:flutter/semantics.dart'; import 'package:flutter/services.dart' show SystemChannels; import '../flutter_test_alternative.dart'; void main() { test('Semantic announcement', () async { final List<Map<dynamic, dynamic>> log = <Map<dynamic, dynamic>>[]; SystemChannels.accessibility.setMockMessageHandler((Object mockMessage) async { final Map<dynamic, dynamic> message = mockMessage; log.add(message); }); await SemanticsService.announce('announcement 1', TextDirection.ltr); await SemanticsService.announce('announcement 2', TextDirection.rtl); expect(log, equals(<Map<String, dynamic>>[ <String, dynamic> {'type': 'announce', 'data': <String, dynamic> {'message': 'announcement 1', 'textDirection': 1}}, <String, dynamic> {'type': 'announce', 'data': <String, dynamic> {'message': 'announcement 2', 'textDirection': 0}}, ])); }); }