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.NET Web Api Module Post-Test Controller

I do not have much experience with the .NET Web Api, but I worked with it for a while following the John Papa SPA Pluralsight instructions. The application works fine, but now I'm afraid this is a block test of POST controllers.

I followed this incredible unit test guide for web api controllers. The only problem for me is when I need to check the POST method.

My controller is as follows:

    [ActionName("course")]
    public HttpResponseMessage Post(Course course)
    {
        if (course == null)
            throw new HttpResponseException(HttpStatusCode.NotAcceptable);
        try
        {
            Uow.Courses.Add(course);
            Uow.commit();
        }
        catch (Exception)
        {
            throw new HttpResponseException(HttpStatusCode.InternalServerError);
        }

        var response = Request.CreateResponse(HttpStatusCode.Created, course);

        string uri = Url.Link(routeName: "ControllerActionAndId", 
        routeValues: new { id = course.Id });

        response.Headers.Location = new Uri(uri);

        return response;
    }

And my unit test looks like this:

   [Test]
    public void PostShouldReturnHttpResponse()
    {
        var populatedPostController = new CoursesController(new TestUOW());

        SetupPostControllerForTest(populatedPostController);

        var course = new Course
        {
            Id = 12,
            Author = new UserProfile()
            {
                Firstname = "John",
                Lastname = "Johnson",
            },
            Description = "Testcourse",
            Title = "Test Title"
        };

          var responses = populatedPostController.Post(course);

          ObjectContent content = responses.Content as ObjectContent;
          Course result = (Course)content.Value;
          Assert.AreSame(result, course);
    }

Using the help function:

    public static void SetupPostControllerForTest(ApiController controller)
    {

        var config = new HttpConfiguration();
        var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost/api/courses/course");
        var route = config.Routes.MapHttpRoute(
            name: "ControllerActionAndId",
            routeTemplate: "api/{controller}/{action}/{id}",
            defaults: null,
            constraints: new { id = @"^\d+$" }
        );

        var routeData = new HttpRouteData(route, new HttpRouteValueDictionary { { "controller", "courses" }, { "action", "course" } });

        controller.ControllerContext = new HttpControllerContext(config, routeData, request);
        controller.Request = request;
        controller.Request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
    }

When I debug a unit test, it seems to fail:

        string uri = Url.Link(routeName: "ControllerActionAndId", 
        routeValues: new { id = course.Id });

        response.Headers.Location = new Uri(uri); //Exception because uri = null

It seems that Url.Link cannot find the route.

I tried this guide, but I really want the above example to work.

Did I miss something really basic here?

+5
1

, , .

controller.Request.Properties[HttpPropertyKeys.HttpRouteDataKey] = routeData

, UrlHelper . UrlHelper . , , IUrlHelper, unit test.

public interface IUrlHelper
    {
        string Link(string routeName, object routeValues);
        string Route(string routeName, object routeValues);
    }

    public class UrlHelperWrapper : IUrlHelper
    {
        UrlHelper helper;

        public UrlHelperWrapper(UrlHelper helper)
        {
            this.helper = helper;
        }

        public string Link(string routeName, object routeValues)
        {
            return this.helper.Link(routeName, routeValues);
        }

        public string Route(string routeName, object routeValues)
        {
            return this.helper.Route(routeName, routeValues);
        }
    }

UrlHelperWraper -API IUrlHelper . , .

, .

+4

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