https://bugs.winehq.org/show_bug.cgi?id=54058
--- Comment #1 from François Gouget fgouget@codeweavers.com --- Actually the test works in the en-AE UTF-8 locale. So maybe it's not just the code page that matters but it's combination with the keyboard, or the user locale.
But then maybe we don't care about the corner cases and just making sure the test succeeds in a few well known locales is all that matters?