public async void All_Not_Exists()
        {
            UnitDispositionControllerMockFacade mock = new UnitDispositionControllerMockFacade();

            mock.ServiceMock.Setup(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>())).Returns(Task.FromResult <List <ApiUnitDispositionServerResponseModel> >(new List <ApiUnitDispositionServerResponseModel>()));
            UnitDispositionController controller = new UnitDispositionController(mock.ApiSettingsMoc.Object, mock.LoggerMock.Object, mock.TransactionCoordinatorMock.Object, mock.ServiceMock.Object, mock.ModelMapperMock.Object);

            controller.ControllerContext             = new ControllerContext();
            controller.ControllerContext.HttpContext = new DefaultHttpContext();

            IActionResult response = await controller.All(1000, 0, string.Empty);

            response.Should().BeOfType <OkObjectResult>();
            (response as OkObjectResult).StatusCode.Should().Be((int)HttpStatusCode.OK);
            var items = (response as OkObjectResult).Value as List <ApiUnitDispositionServerResponseModel>;

            items.Should().BeEmpty();
            mock.ServiceMock.Verify(x => x.All(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>()));
        }