So you’ve decided to start using Shoulda instead of Rspec or Test::Unit in your latest rails project?  There’s one step you might not think to do, which strangely is absent in any of the Shoulda documentation.

After you `sudo gem install thoughtbot-shoulda` …

Don’t forget to put require ’shoulda’  at the top of whatever test classes you write, otherwise you’ll get “undefined method `should`” all over the place.  There, I saved you 4 hours.