pester/Pester — pull request #174 by dlwyatt (2014-08-04 00:54:17+00:00)
Title: Describe and Context fix

Fixture parameters to Describe was mistakenly marked as Mandatory in a recent commit. Instead of that, its previous behavior was to be optional, but to throw a more user-friendly error message if it's not specified.

Added tests to make sure this doesn't happen again, and also applied the same logic / tests to the Context command.