Testing a DSC Resource

PowerShell Help
1

Hi,
I have implemented several DSC resources but now I need to devise a way to test them. What I found as possible options are:

    Unit testing of the underlying PowerShell code i.e. Get-, Test-, Set-TargetResource methods
    Integration test that starts a VM, applies the DSC resource and asserts whether everything is in place
    Using the WhatIf switch of the Start-DscConfiguration method to look for specific messages - but this not real functional testing
    Using the Test-DscConfiguration to verify that the changes are applied correctly and the machine state is the correct one

I would like to know whether this is the correct way to test the DSC resource and if there is something better as an approach.

Thank you in advance.
Regards,
Damyan

2

Unit testing as you suggest is probably the best place to start.