public async void ByScrapReasonID_Not_Exists()
        {
            var mock = new ServiceMockFacade <IWorkOrderRepository>();

            mock.RepositoryMock.Setup(x => x.ByScrapReasonID(It.IsAny <short?>(), It.IsAny <int>(), It.IsAny <int>())).Returns(Task.FromResult <List <WorkOrder> >(new List <WorkOrder>()));
            var service = new WorkOrderService(mock.LoggerMock.Object,
                                               mock.RepositoryMock.Object,
                                               mock.ModelValidatorMockFactory.WorkOrderModelValidatorMock.Object,
                                               mock.BOLMapperMockFactory.BOLWorkOrderMapperMock,
                                               mock.DALMapperMockFactory.DALWorkOrderMapperMock,
                                               mock.BOLMapperMockFactory.BOLWorkOrderRoutingMapperMock,
                                               mock.DALMapperMockFactory.DALWorkOrderRoutingMapperMock);

            List <ApiWorkOrderResponseModel> response = await service.ByScrapReasonID(default(short?));

            response.Should().BeEmpty();
            mock.RepositoryMock.Verify(x => x.ByScrapReasonID(It.IsAny <short?>(), It.IsAny <int>(), It.IsAny <int>()));
        }