[Bug 39644] New: WineTest.exe should detect left-over UAC prompts

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=39644

            Bug ID: 39644
           Summary: WineTest.exe should detect left-over UAC prompts
           Product: Wine
           Version: 1.8-rc1
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testcases
          Assignee: wine-bugs at winehq.org
          Reporter: fgouget at codeweavers.com
      Distribution: ---

There was a problem where the cmd.exe:batch would try to run regedit from an
account without elevated privileges. This caused Windows to pop up the UAC
dialog, causing the test to stall. Timeout would happen, WineTest would kill
the cmd.exe:batch process but doing so, and even extending it to all process
tree, does not close the UAC because it's under the control of another Windows
element. So WineTest would run the following tests with the UAC dialog still up
which caused them to fail as they could not put their windows in the
foreground.

The cmd.exe:batch bug has been fixed. However it could make sense for WineTest
to do more to handle this situation more nicely:
 * If possible it could dismiss the UAC dialog (not click 'Yes' obviously, just
deny the request).
 * It could detect the UAC dialog is up and wait. It seems the UAC dialog goes
away on its own after about two minutes.
 * If we cannot detect if an UAC dialog is up we could systematically wait for
an extra 2 minutes after a timeout, just in case.
 * Even more basic, we could increase our test timeout so it's longer than the
UAC timeout, in the hope an UAC would go away before we time out.
 * Even though it does not solve the UAC issue it could still make sense to
kill the whole subprocess tree, just to be sure one of them is not going to
break the following tests.

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