Yelp/Testify — pull request #213 by mrtyler (2013-11-19 00:46:53+00:00)
Title: Mrtyler no test impostors

`test_fixtures` should be private. yelp-main reminded us of this by having a test that manipulates the variable `test_fixtures` (see internal ticket #58770). Similar attributes use the `__` decorator so that's what I did.