Slightly more robust ConditionalMountMapper test
Slightly more robust ConditionalMountMapper test

Adding another outlet to make sure all outlets aren't passed to the
constructor of a conditional mount (or its Modified version). Only the
outlets specified in a Modified CM should be passed to its constructor.
This enforces The Principle of Least Privilege.

darvelo/ether,darvelo/ether,darvelo/ether