Fennec is a testing framework on top of Test::Builder, one that reduces boilerplate, and solves many of the limitations of vanilla Test::More. It addresses issues such as forking during tests, breaking tests into smaller parts, test-group isolation (state leaks), and mocking. With Fennec in your unit tests, testing becomes a much more enjoyable experience.

A while back I needed to create a presentation for promoting Fennec. That presentation can be found here and covers most of what makes Fennec so great. It even includes a javascript /users/chad_exodist_granum/2013/07/index.html