restful authentication: integration testing


Anyone know how to do integration testing with the "Restful Authentication" plugin?

I've been trying this, without luck :

def login_session(user)   open_session do |sess|     sess.extend(CustomDsl)     sess.extend(AuthenticatedTestHelper); #<<my clever idea     sess.login_as(users(user))#<<won't work   end end

but predictably it splats on the last line. Various objects aren't available to the helper code.

What should I be doing?