[FEATURE] - MOAR PESTER TESTS!!

**Describe the solution you'd like**
More pester tests on functions to check if the outcome is as expected.
Too much manual testing/intervention at the moment

* Take predefined output , mock it and test if results match the mocks.
* Test for OutputTypes while I'm at it.
* Test against Workstation/Server/DC
* Test against CIM/DCOM/PSSession etc
