public async void Delete() { var mock = new ServiceMockFacade <IFeedRepository>(); var model = new ApiFeedRequestModel(); mock.RepositoryMock.Setup(x => x.Delete(It.IsAny <string>())).Returns(Task.CompletedTask); var service = new FeedService(mock.LoggerMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.FeedModelValidatorMock.Object, mock.BOLMapperMockFactory.BOLFeedMapperMock, mock.DALMapperMockFactory.DALFeedMapperMock); ActionResponse response = await service.Delete(default(string)); response.Should().NotBeNull(); mock.RepositoryMock.Verify(x => x.Delete(It.IsAny <string>())); mock.ModelValidatorMockFactory.FeedModelValidatorMock.Verify(x => x.ValidateDeleteAsync(It.IsAny <string>())); }