Yelp/Testify — pull request #67 by sumeet (2012-04-08 04:18:25+00:00)
Title: Make assert_raises() usable as a context manager.

If you're up for it, these tests could be cleaned up a little if we included Michael Foord's mock (or something just as powerful) in Testify's testing toolchain. But they're not that bad right now.