public async void All() { var mock = new ServiceMockFacade <ICultureRepository>(); var records = new List <Culture>(); records.Add(new Culture()); mock.RepositoryMock.Setup(x => x.All(It.IsAny <int>(), It.IsAny <int>())).Returns(Task.FromResult(records)); var service = new CultureService(mock.LoggerMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.CultureModelValidatorMock.Object, mock.BOLMapperMockFactory.BOLCultureMapperMock, mock.DALMapperMockFactory.DALCultureMapperMock, mock.BOLMapperMockFactory.BOLProductModelProductDescriptionCultureMapperMock, mock.DALMapperMockFactory.DALProductModelProductDescriptionCultureMapperMock); List <ApiCultureResponseModel> response = await service.All(); response.Should().HaveCount(1); mock.RepositoryMock.Verify(x => x.All(It.IsAny <int>(), It.IsAny <int>())); }