public async void All_ShouldReturnRecords() { var mock = new ServiceMockFacade <ILinkService, ILinkRepository>(); var records = new List <Link>(); records.Add(new Link()); mock.RepositoryMock.Setup(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>())).Returns(Task.FromResult(records)); var service = new LinkService(mock.LoggerMock.Object, mock.MediatorMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.LinkModelValidatorMock.Object, mock.DALMapperMockFactory.DALLinkMapperMock, mock.DALMapperMockFactory.DALLinkLogMapperMock); List <ApiLinkServerResponseModel> response = await service.All(); response.Should().HaveCount(1); mock.RepositoryMock.Verify(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>())); }