Why doesn't test:plugins set RAILS_ENV to 'test' on run?

As of 1.1.6 this is the case. Is there a reason for this? It runs in
dev mode. In ARTS I don't want to polute Rails internals in dev or
production mode. Unfortunately I can't have passing tests _and_ keep a
handle on my objects currently.

This is known, see the comments for
http://dev.rubyonrails.org/ticket/5935 .

I guess Ulysses will get to it eventually.