public async void All() { var mock = new ServiceMockFacade<IStudioRepository>(); var records = new List<Studio>(); records.Add(new Studio()); mock.RepositoryMock.Setup(x => x.All(It.IsAny<int>(), It.IsAny<int>())).Returns(Task.FromResult(records)); var service = new StudioService(mock.LoggerMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.StudioModelValidatorMock.Object, mock.BOLMapperMockFactory.BOLStudioMapperMock, mock.DALMapperMockFactory.DALStudioMapperMock); List<ApiStudioResponseModel> response = await service.All(); response.Should().HaveCount(1); mock.RepositoryMock.Verify(x => x.All(It.IsAny<int>(), It.IsAny<int>())); }