| // Copyright 2013 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:file_selector_platform_interface/file_selector_platform_interface.dart'; |
| import 'package:file_selector_platform_interface/src/method_channel/method_channel_file_selector.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| // Store the initial instance before any tests change it. |
| final FileSelectorPlatform initialInstance = FileSelectorPlatform.instance; |
| |
| group('$FileSelectorPlatform', () { |
| test('$MethodChannelFileSelector() is the default instance', () { |
| expect(initialInstance, isInstanceOf<MethodChannelFileSelector>()); |
| }); |
| |
| test('Can be extended', () { |
| FileSelectorPlatform.instance = ExtendsFileSelectorPlatform(); |
| }); |
| }); |
| |
| group('#GetDirectoryPaths', () { |
| test('Should throw unimplemented exception', () async { |
| final FileSelectorPlatform fileSelector = ExtendsFileSelectorPlatform(); |
| |
| await expectLater(() async { |
| return fileSelector.getDirectoryPaths(); |
| }, throwsA(isA<UnimplementedError>())); |
| }); |
| }); |
| } |
| |
| class ExtendsFileSelectorPlatform extends FileSelectorPlatform {} |