When I run "jake test --cov" it creates .js.html files beside all of the js files, so I end up with:
![Capture](https://f.cloud.github.com/assets/393086/173043/8e9e0d10-7acf-11e2-9655-7d6b1e5b34c0.PNG)

Maybe something in the test coverage generator is configured wrong, will take a look