kriswallsmith/assetic — pull request #549 by pierredup (2013-12-13 21:07:02+00:00)
Title: Fix incomplete test for scssphp

Fix the incomplete test for scssphp

The issue with 'Undefined mixin "box-shadow"', is that the compass filter is disabled.
So when importing compass, the libraries can't be loaded and the box-shadow mixin does not exist (which means the exception is expected).

There are a couple of other ways to get around this, but marking the Exception as expected seemed like the most obvious fix