[7/7] wmiutils: Add tests.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
http://testbot.winehq.org/JobDetails.pl?Key=23686

Your paranoid android.


=== WNT4WSSP6 (32 bit path) ===
path.c:102: Test failed: got 80040154
path: unhandled exception c0000005 at 00401303

=== W2KPROSP4 (32 bit path) ===
path.c:102: Test failed: got 80040154
path: unhandled exception c0000005 at 00401303