I am working with ruby 1.8, rails 3.1 and rspec 2.7
I am trying to make very good tests, I want to try one of those code mutation tools. I have only found Heckle but it seems to be very outdated and I am having a hard time to make it work with my setup.
Is there any other code mutation tool for Ruby out there?
or
Is there any other way get some automatic feedback on the quality of tests? (excluding coverage)