public async void All_ShouldReturnRecords() { var mock = new ServiceMockFacade <IBucketService, IBucketRepository>(); var records = new List <Bucket>(); records.Add(new Bucket()); mock.RepositoryMock.Setup(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>())).Returns(Task.FromResult(records)); var service = new BucketService(mock.LoggerMock.Object, mock.MediatorMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.BucketModelValidatorMock.Object, mock.DALMapperMockFactory.DALBucketMapperMock, mock.DALMapperMockFactory.DALFileMapperMock); List <ApiBucketServerResponseModel> response = await service.All(); response.Should().HaveCount(1); mock.RepositoryMock.Verify(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>())); }