A friend blew my mind with this a while ago when I was trying to track down a commit which broke something. This short guide he wrote gives step by step instruc

A friend blew my mind with this a while ago when I was trying to track down a commit which broke something. This short guide he wrote gives step by step instructions for using it with your tests: https://gist.github.com/jordelver/5998870 https://gist.github.com/jordelver/5998870