Require the needed files explicitly. Otherwise tests might break if this
test is found first.
--- test/testeventbuilder.rb.~1~ 2006-12-24 20:29:01.000000000 +0100+++ test/testeventbuilder.rb 2010-06-26 15:43:50.853708583 +0200@@ -1,3 +1,6 @@+require 'test/unit'+require 'builder'+class TestEvents < Test::Unit::TestCase
class Target