Getting uninitialized constant error when trying to run tests

Question

I just updated all my gems and I\'m finding that I\'m getting errors when trying to run Test::Unit tests. I\'m getting the error copied below. That comes from creating new,

Answer 1

I was getting this without mocha or shoulda installed.

This post suggests it's due to an incompatibility in test-unit >= 2.0, which I installed as a dependency for the systools gems. Downgrading to 1.2.3 worked for me, a simple require might also.