blowmage/minitest-rails — pull request #40 by joneslee85 (2012-05-21 00:07:20+00:00)
Title: Replace `superclass` with `<` notation to detect class type

`superclass` is not ideal because it fails on classes of following implementations:

* STI of an AR baseclass
* Classes that implement abstract AR baseclass

However, '<' is always a reliable solution, it works regardlessly. :)