Make xwindow.py test more robust

...by waiting for all events to be processed before the listeners are removed

Change-Id: I1aa4f6c43de97a567877a499c4c8fb51ef53eeea
Reviewed-on: https://gerrit.libreoffice.org/72432Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>

sw/qa/uitest/writer_tests5/xwindow.py

@@ -140,6 +140,10 @@ class XWindow(UITestCase):
         xToolkitRobot.keyPress(xKeyEvent)
         xToolkitRobot.keyRelease(xKeyEvent)
 
+        # Wait for async events to be processed
+        xToolkit = self.xContext.ServiceManager.createInstance('com.sun.star.awt.Toolkit')
+        xToolkit.processEventsToIdle()
+
         # remove mouse listener
         xWindow.removeMouseListener(xMouseListener)
         self.assertEqual(1, mouseListenerCount)
@@ -149,10 +153,6 @@ class XWindow(UITestCase):
         xWindow.removeKeyListener(xKeyListener)
         del xKeyListener
 
-        # Wait for async events to be processed
-        xToolkit = self.xContext.ServiceManager.createInstance('com.sun.star.awt.Toolkit')
-        xToolkit.processEventsToIdle()
-
         global keymousePressedEventsIntercepted
         # Not expected any interceptions
         self.assertEqual(0, keymousePressedEventsIntercepted)