Mocking Out RedirectToReferrer in Castle MonoRail

[TestFixture]
public class LoginControllerTests : GenericBaseControllerTest<LoginController>
{
    private string referrer = "http://www.example.org";
    protected override IMockRequest BuildRequest()
    {
        var request = new StubRequest(Cookies);
        request.UrlReferrer = referrer;

        return request;
    }

    protected override IMockResponse BuildResponse(UrlInfo info)
    {
        var response = new StubResponse(info,
                                        new DefaultUrlBuilder(),
                                        new StubServerUtility(),
                                        new RouteMatch(),
                                        referrer);
        return response;
    }