[Bug 48043] New: user32:dce has a pair of random failures

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48043

            Bug ID: 48043
           Summary: user32:dce has a pair of random failures
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: wine-bugs at winehq.org
          Reporter: fgouget at codeweavers.com

Created attachment 65584
  --> https://bugs.winehq.org/attachment.cgi?id=65584
user32:dce: Loop over the test_destroyed_window() for 2 random failures.

user32:dce has a pair of random failures in test_destroyed_window():

dce.c:648: Test failed: wrong window
dce.c:658: Test failed: DC for destroyed window not reused


One either gets the first one alone or both together.
See https://test.winehq.org/data/tests/user32:dce.html

These happen at random on a wide range of Windows versions: wxppro, w2003std,
w2008s64, fg-win7u64-*, w1064v1507, w1064v1607.

On Windows 10 the same type of error sometimes happens in test_dc_attributes()
on line 127 which is another "wrong window\n" check.

The attached patch loops over test_destroyed_window() which is sufficient to
make these failures systematic. This can hopefully help debug the issue and
make sure these are fixed.

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