puppetlabs/puppet — pull request #1169 by jeffmccune (2012-09-19 18:02:38+00:00)
Title: (Maint) Add tests of passing undef as parameter.

The semantics of passing undef has changed from 2.7, to 3.x. These tests
assert that the behavior is the expected behavior of 3.x.

Reviewed-by: Jeff McCune