public void RoomTypeEdit()
        {

             RoomTypesController controller = new RoomTypesController();
             RoomType rt = new RoomType();

             rt.RoomTypeId = 1;
             rt.RoomTypeName = "Premier Room with One King Bed ";
             var result = controller.Edit(rt);
             Assert.IsInstanceOfType(result, typeof(RedirectToRouteResult));
             Assert.IsTrue(controller.ModelState.IsValid);
       

        }
        public void RoomTypesEdit()
        {
            RoomTypesController controller = new RoomTypesController();
            var result = (HttpStatusCodeResult)controller.Edit((int?)null);
            Assert.AreEqual(400, result.StatusCode);
            Assert.IsInstanceOfType(result, typeof(HttpStatusCodeResult));

        }