Policyfiles that don't belong to a particular Cookbook and Testkitchen

So, since chef-workstation 0.4 Policyfiles are the default. While I really appreciate this I am still unsure how to test them. It's no problem in the context of a cookbook. But what about Policyfiles that don't belong into a single Cookbook but that define role-like behaviour in that they combine multiple cookbooks (like for example a base role did) and that live in a directory outside of my cookbooks. What is a way to test them? Putting a kitchen.yml into that directory and defining a suite for every Policyfile there seems unclean to me.

Thx for the help,

does nobody have any idea?