public async void Update_NotFound()
{
LinkControllerMockFacade mock = new LinkControllerMockFacade();
var mockResult = new Mock <UpdateResponse <ApiLinkResponseModel> >();
mockResult.SetupGet(x => x.Success).Returns(false);
mock.ServiceMock.Setup(x => x.Update(It.IsAny <int>(), It.IsAny <ApiLinkRequestModel>())).Returns(Task.FromResult <UpdateResponse <ApiLinkResponseModel> >(mockResult.Object));
mock.ServiceMock.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult <ApiLinkResponseModel>(null));
LinkController controller = new LinkController(mock.ApiSettingsMoc.Object, mock.LoggerMock.Object, mock.TransactionCoordinatorMock.Object, mock.ServiceMock.Object, new ApiLinkModelMapper());
controller.ControllerContext = new ControllerContext();
controller.ControllerContext.HttpContext = new DefaultHttpContext();
IActionResult response = await controller.Update(default(int), new ApiLinkRequestModel());
response.Should().BeOfType <StatusCodeResult>();
(response as StatusCodeResult).StatusCode.Should().Be((int)HttpStatusCode.NotFound);
mock.ServiceMock.Verify(x => x.Get(It.IsAny <int>()));
}