Slightly tangential to the post, but Mocha produces really awesome test coverage report too:<p><a href="http://tjholowaychuk.com/post/18175682663/mocha-test-coverage" rel="nofollow">http://tjholowaychuk.com/post/18175682663/mocha-test-coverag...</a>
I usually just use guard to run my mocha tests continuously. I have it check for .js files that have changed and run the test suite again.<p>As an emacs user, this is just running in a terminal window inside emacs so I have continuous feedback as I code. Makes TDD a lot of fun.