GitHub’s Scientist puts Ruby rewrites to the test

GitHub this week began offering a 1.0 version of Scientist, a Ruby library that helps developers rewrite critical code.
In a blog post, GitHub engineer Jesse Toth talked about the need to replace or rewrite part of a system and how GitHub has had many systems that scaled far beyond their original design. Eventually a large component of the application has to be redone, and Scientist was built to help test production data and behavior to ensure correctness.[ Get the most out of collaborative pro