If these are not intended to be part of the public API for normal use, I'd rather you did at least one of two things:

* Prefix them with an _ to indicate that they're not considered part of the API (and thus we don't have to maintain compatibility as we change things)
* Add an extra testing argument to the function call you assign to module.exports, and only export these endpoints when testing. 

Or both. Both would be good. :)