[2/2] dinput8/tests: Tests for DIPROP_USERNAME property

[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=13553

Your paranoid android.


=== W7PROX64 (64 bit device) ===
device.c:193: Test failed: GetProperty failed hr=80070057
device.c:194: Test failed: Username not set correctly expected=L"winetest", got=L"\0488W"
device.c:193: Test failed: GetProperty failed hr=80070057
device.c:194: Test failed: Username not set correctly expected=L"winetest", got=L"\0488W"
device.c:193: Test failed: GetProperty failed hr=80070057
device.c:194: Test failed: Username not set correctly expected=L"Ninja Brian", got=L"\0488W"
device.c:193: Test failed: GetProperty failed hr=80070057
device.c:194: Test failed: Username not set correctly expected=L"Ninja Brian", got=L"\0488W"