How do I mock the HttpContext in ASP.NET MVC using MOQ?

Question

    [TestMethod]
    public void Home_Message_Display_Unknown_User_when_coockie_does_not_exist()
    {
        var context = new Mock<HttpContextBase>();
        var request = new Mock<HttpRequestBase>();
        context
            .Setup(c => c.Request)
            .Returns(request.Object);
        HomeController controller = new HomeController();

        controller.HttpContext = context; //Here I am getting an error (read only).

        ...
     }

my base controller has an overrride of the Initialize that get's this requestContext. I am trying to pass this along but I am not doing something right.

   protected override void Initialize(System.Web.Routing.RequestContext requestContext)
    {
        base.Initialize(requestContext);

Where can I get more information on mocking my requestcontext and httpcontext using moq. I am trying to mock cookies and the general context.

Answer 1

HttpContext is read-only, but it is actually derived from the ControllerContext, which you can set.

 controller.ControllerContext = new ControllerContext( httpContext, new RouteData(), controller );

Answer 2

Try checking Scott Hanselman's Mock example. That could lead you in the right direction.

Hope this helps!

Answer 3

Create a request, response and put them both to HttpContext:

HttpRequest httpRequest = new HttpRequest("", "http://mySomething/", "");
StringWriter stringWriter = new StringWriter();
HttpResponse httpResponce = new HttpResponse(stringWriter);
HttpContext httpConextMock = new HttpContext(httpRequest, httpResponce);