Are you thinking of this thoughtbot post? http://robots.thoughtbot.com/post/159805334/make-your-test-suite-uncomfortably-fast http://robots.thoughtbot.com/post

Are you thinking of this thoughtbot post? http://robots.thoughtbot.com/post/159805334/make-your-test-suite-uncomfortably-fast http://robots.thoughtbot.com/post/159805334/make-your-test-s... I just put this into a unit testing presentation we did at my dayjob.