Yeah, I don't think I follow what these are intended for, since the opposite is being tested [here](https://github.com/afeld/mustachio/blob/43f88042c26674058007d9c0e1debb078eddf7c2/spec/unit/analyser_spec.rb#L42).  Going to remove it and merge, but feel free to send another PR with them implemented if you want to show what they were intended for.  Thanks again!