public void GetFavourites() { var controllerContext = new Mock <ControllerContext>(); var principal = new Mock <IPrincipal>(); principal.Setup(p => p.IsInRole("Administrator")).Returns(true); principal.SetupGet(x => x.Identity.Name).Returns("rr"); controllerContext.SetupGet(x => x.HttpContext.User).Returns(principal.Object); controller.ControllerContext = controllerContext.Object; ViewResult result = controller.GetFavourites() as ViewResult; Assert.AreNotEqual(null, result.ViewBag.Recipes); }