This gem adds Growl-support to autotest. Results of RSpec and Test::Unic tests as well as Cucumber scenarios are displayed as Growl notifications, decorated with cute colored icons. You can use your own icon set if you prefer.
Take a look at the README for installation instructions and more.
Since 0.2.0 this gem requires the lightweight autotest gem instead of the more featureful ZenTest suite. If you need the full suite at a later point, simply install the zentest-without-autotest gem alongside. And to use autotest with Rails, install the autotest-rails-pure gem as well. You might have to uninstall the famous autotest-rails gem beforehand as it requires ZenTest.