jimweirich/flexmock — pull request #11 by kammerer (2013-01-08 10:38:39+00:00)
Title: In certain circumstances flexmock breaks rake tasks

Happens with ruby 1.9.3 with `Test::Unit`.

Similar problem is described here for `shoulda` gem:
https://github.com/thoughtbot/shoulda/issues/223

Requiring `test/unit/assertions` instead of `test/unit` seems to fix it.