Feature/mongo 2.6.5 jshint tests

Fix JSHint issues with new pipeline test code that was (mostly) ported from the original 2.6.5 mongo code.
Part of an effort to cleanup various JSHint issues in one fell swoop so that we can keep things a bit cleaner going forward.

No, just realized that it was short enough to ditch the `//jshint ignore:line` but it wanted me to provide a set of `()` to go with the constructor (the required `mocha` library in this case)