public async void ByTicketStatusId_Not_Exists() { var mock = new ServiceMockFacade <ITicketRepository>(); mock.RepositoryMock.Setup(x => x.ByTicketStatusId(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <int>())).Returns(Task.FromResult <List <Ticket> >(new List <Ticket>())); var service = new TicketService(mock.LoggerMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.TicketModelValidatorMock.Object, mock.BOLMapperMockFactory.BOLTicketMapperMock, mock.DALMapperMockFactory.DALTicketMapperMock); List <ApiTicketResponseModel> response = await service.ByTicketStatusId(default(int)); response.Should().BeEmpty(); mock.RepositoryMock.Verify(x => x.ByTicketStatusId(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <int>())); }