How to I test an HTTP-Post with Moq in ASP.NET?

Question

Hi folks,

i've got the following Action Method I'm trying to moq test. Notice the AcceptVerbs? I need to make sure i'm testing that.

here's the method.

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create([Bind(Include = "Subject, Content")]Post post,
    HttpPostedFileBase imageFileName)
{
  ...
}

here's the moq code i have...

[TestMethod]
public void Create_Action_snip_sniop_When_Http_Post_Is_Succesful()
{
    // Arrange.
    var mock = new Mock<ControllerContext>();
    mock.SetupGet(m => m.HttpContext.Request.HttpMethod).Returns("POST");

    // Snip some other arrangements.

    var controller = PostController;
    controller.ControllerContext = mock.Object;

    // Act.
    var viewResult = controller.Create(post, image.Object) as ViewResult;

    // Assert.
    Assert.IsNotNull(viewResult);

    // TODO: Test that the request was an Http-Post.

what do i need to do to verify the request was a post?

Answer 1

Your attribute won't be invoked when running as a unit test because it is normally invoked by the ControllerActionInvoker as part of the Mvc "stack". What I've done in cases like this is to write a test to make sure that the correct attribute is applied to the action with the correct parameters. Then I trust that the framework will do its job correctly.

Doing this requires reflection:

 public void Only_posts_are_allowed_to_my_action()
 {
       var method = typeof(MyController).GetMethod("MyAction");
       var attribute = method.GetCustomAttributes(typeof(AcceptVerbsAttribute),false)
                             .Cast<AcceptVerbsAttribute>();
                             .SingleOrDefault();

       Assert.IsNotNull( attribute );
       Assert.AreEqual( 1, attributes.Count() );
       Assert.IsTrue( attributes.Contains( HttpVerbs.Post ) );
 }