This is familiar , it look like this problem http://openhood.com/rack/ruby/2010/07/15/rack-test-warning/
read the article and see if its your case, i hope it helps -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.