--- test/abstract_unit.rb.~1~	2011-02-10 08:12:37.551582393 +0100
+++ test/abstract_unit.rb	2011-02-10 08:13:37.845418027 +0100
@@ -19,6 +19,10 @@
   # Debugging disabled. `gem install ruby-debug` to enable.
 end
 
+gem 'activesupport', '~> 2.3'
+gem 'actionmailer', '~> 2.3'
+gem 'activerecord', '~> 2.3'
+
 require 'action_controller'
 require 'action_controller/cgi_ext'
 require 'action_controller/test_process'