More testing for parser and stubbify

All tests pass
Oh, I see why the star is there now in line 39.

Having that star there (and the tmp* naming scheme it implies) is pretty weird. I would either:

* Add another fixture for this test (not very DRY, since it would be a copy of `example.js`
* Just use `tmp` for everything, and make `after` into `afterEach`