So we know if they get deleted before the waiting completes. This avoids a crash if we dereference a dangling pointer or an ABA coincidence in the case of qWaitForWindowFocused. There's currently no way to tell QTest::qWaitFor() that the condition will never become true, so this will result in a timeout. [ChangeLog][QtTest] Fixed a bug that would cause the qWaitForWindow* and qWaitForWidget* functions to crash or misbehave if the window or widget they were told to wait on was destroyed in the process of waiting for it to be shown/focused/activated/exposed. Pick-to: 6.10 6.9 6.8 Task-number: QTBUG-136653 Change-Id: Idaef89fa55e869d6946afffd727653a1fee3770c Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>