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( context.Object, new RouteData(), controller ); 

Answer 2

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

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