I recently started playing around with EmberJS. While I was insanely impressed with how easy it was to get a single-page app up and running, I was having difficulty getting QUnit setup correctly. After some finagling I was able to get it working. In my particular case I’m using Ruby 2.0.0 and Rails 4.0.0, though I’m sure this same setup would work with previous versions with minimal (if any) tweaks.