public void RejectThenDetail()
        {
            var mockUser = University.GetUser("e101");

            VisitorController vc = new VisitorController();

            vc.ControllerContext = new ControllerContext(MockAuthContext(mockUser).Object, new RouteData(), vc);

            ViewResult actionResult = vc.Detail("TEST1") as ViewResult;

            Assert.IsNotNull(actionResult);
            Assert.IsInstanceOfType(actionResult.Model, typeof(Visitor));
            Visitor model = actionResult.Model as Visitor;

            Assert.AreEqual(VisitorStatus.WaitingForApproval, model.Status);

            RedirectToRouteResult actionResult2 = vc.Reject(model.ID) as RedirectToRouteResult;

            Assert.AreEqual("List", actionResult2.RouteValues["action"]);

            ViewResult actionResult3 = vc.Detail("TEST1") as ViewResult;

            Assert.IsNotNull(actionResult3);
            Assert.IsInstanceOfType(actionResult3.Model, typeof(Visitor));
            Visitor model2 = actionResult3.Model as Visitor;

            Assert.AreEqual(VisitorStatus.Rejected, model2.Status);
            Assert.IsNotNull(model2.ApproveDate);
        }