我正在尝试在我的颤振项目中使用 Mockito 模拟 sharedPreferences 。这是错误日志。
package:mockito/src/mock.dart 190:7 Mock._noSuchMethod
package:mockito/src/mock.dart 184:45 Mock.noSuchMethod
test\feature\number_trivia\data\datasource\number_trivia_local_datasource_test.mocks.dart 67:14 MockSharedPreferences.setString
package:clean_arch_tdd/features/number_trivia/data/datasources/number_trivia_local_datasource.dart 31:30 NumberTriviaLocalDataSourceImpl.cacheLastNumberTrivia
test\feature\number_trivia\data\datasource\number_trivia_local_datasource_test.dart 51:18 main.<fn>.<fn>
MissingStubError: 'setString'
No stub was found which matches the arguments of this method call:
setString('CACHED_NUMBER_TRIVIA', '{"text":"Test trivia","number":1}')
Add a stub for this method using Mockito's 'when' API, or generate the mock for MockSharedPreferences with 'returnNullOnMissingStub: true'.
错误是指这行代码。
local_data_source_test.dart
test('should call sharedPreferences to cache the data', () {
dataSource.cacheLastNumberTrivia(tNumberTriviaModel);
final expectedJsonString = jsonEncode(tNumberTriviaModel.toJson());
verify(mockSharedPreferences.setString(
cachedNumberTrivia, expectedJsonString));
});
local_data_source.dart
@override
Future<void> cacheLastNumberTrivia(NumberTriviaModel triviaToCache) {
return sharedPreferences.setString(
cachedNumberTrivia, jsonEncode(triviaToCache.toJson()));
}
它表明来自模拟的 sharedPreferences 的方法 setString 丢失了。我已经运行了 pub 命令来生成模拟。我在文件中还有一些使用 getString 方法的测试用例。它工作正常。
有什么我遗漏的东西所以我不能使用 setString 方法吗?或者有没有解决这个问题的方法?
提前谢谢。