I am having issue creating a custom route which is not using CMS content, for example I want to use for javascript on the client side

I have add a standard MVC controller

public class mytestController : Controller
{
//
// GET: /mytest/

public ActionResult Index()
{
return View();
}

}

Added a entry into Global.asax.cs to test

protected override void RegisterRoutes(RouteCollection routes)
{

routes.MapRoute(
"mytestRoute", // Route name
"mytest/{action}", // URL with parameters
new { controller = "mytest", action = "Index" });

base.RegisterRoutes(routes);
}

I have not created a view as I want my breakpoint to hit the controller index to check it works, my project is based on the Alloy demo site.

I am using EPiServer 7 release, Windows 7 on IIS7.5 - .Net4 Intregrated App pool