I found articles on how to unit test routes in prior versions of ASP.NET MVC
http://www.stephenwalther.com/blog/archive/2008/07/02/asp-net-mvc-tip-13-unit-test-your-custom-routes.aspx
http://weblogs.asp.net/scottgu/archive/2007/12/03/asp-net-mvc-framework-part-2-url-routing.aspx
but it doesnt work in ASP.NET MVC Beta1. If a mocking framework is required I would like to use Rhino.