Controller Inheritance Bug

So I have my admin controllers set up to inherit from an AdminAreaController for the purpose of authentication. The setup is much like Justin French describes at:

http://justinfrench.com/index.php?id=122

Everything works great from the browser, but I'm running into this bug in my functional tests:

test_artist_list(Admin::ArtistControllerTest) [./test/functional/admin/artist_controller_test.rb:17]: Expected response to be a <:success>, but was <302>

The test in question simply does:

get :index assert_response :success

Like I said, it works fine in a browser (no redirect), and it works fine if I change the inheritance of ArtistController to inherit from ActiveController again instaed of AdminAreaController.

Also at the end of the tests I get this:

Unable to map class Admin::ArtistControllerTest to a file

Which is pretty cryptic as well, since that is the file that creates the failure!

Something screwy is going on. I really don't want to give up my controller inheritance, but if I can't get functional tests working I may have to. Any ideas?

Just to let everyone know, this was a stupid mistake on my part. The AdminAreaController authenticates the user, and I wasn't setting up the session right.