How to Mock HttpContext.User.Identity.Name in Asp.Net MVC 4

Question

I have code in the controller which consumes HttpContext

public ActionResult Index()
{

   var currentUser=HttpContext.User.Identity.Name;
   ..         


        

Answer 1

you can initialize your controller with fake context with fake principal as shown below

        var fakeHttpContext = new Mock<HttpContextBase>();
        var fakeIdentity = new GenericIdentity("User");
        var principal = new GenericPrincipal(fakeIdentity, null);

        fakeHttpContext.Setup(t => t.User).Returns(principal);
        var controllerContext = new Mock<ControllerContext>();
        controllerContext.Setup(t => t.HttpContext).Returns(fakeHttpContext.Object);        

         _requestController = new RequestController();

         //Set your controller ControllerContext with fake context
         _requestController.ControllerContext = controllerContext.Object; 

Answer 2

To do it using Microsoft tests only (no 3rd party frameworks), you can do as below:

public class MockHttpContextBase : HttpContextBase
{
    public override IPrincipal User { get; set; }

}

And then...

        var userToTest = "User";
        string[] roles = null;

        var fakeIdentity = new GenericIdentity(userToTest);
        var principal = new GenericPrincipal(fakeIdentity, roles);
        var fakeHttpContext = new MockHttpContextBase { User = principal };
        var controllerContext = new ControllerContext
        {
            HttpContext = fakeHttpContext
        };

        // This is the controller that we wish to test:
        _requestController = new RequestController();

        // Now set the controller ControllerContext with fake context
        _requestController.ControllerContext = controllerContext;