Re: [PATCH v2 0/2] MR8434: cfgmgr32: Implement CM_Get_Device_Interface_PropertyW for all property keys.

[Vibhav Pant (＠vibhavp)]

> This looks pretty trivial, but it would be nice to have a test for it.

I have added additional tests with a non-existent `DEVPROPKEY` value and `DEVPKEY_Interface_Enabled`.
> I'd suggest to add a trivial test for SetupDiGetDeviceInterfacePropertyW() with nonexistent property checking error code and then fix 'err =' in a way it returns CR_NO_SUCH_VALUE (probably, depending on the test) and CR_FAILURE for all the other errors.

Addressed in the latest revision, thanks.