709         QPointer<QMainWindow> mainWindow = new QMainWindow;

   710         QPointer<QWidget> invisibleTopLevelWidget = new QWidget;

   711         invisibleTopLevelWidget->setAttribute(Qt::WA_DontShowOnScreen);

   712 

   713         QVERIFY(app.quitOnLastWindowClosed());

   714         QVERIFY(mainWindow->testAttribute(Qt::WA_QuitOnClose));

   715         QVERIFY(invisibleTopLevelWidget->testAttribute(Qt::WA_QuitOnClose));

   716         QVERIFY(invisibleTopLevelWidget->testAttribute(Qt::WA_DontShowOnScreen));

   717 

   718         mainWindow->show();

   719         invisibleTopLevelWidget->show();

   720 

   721         timer.start();

   722         QTimer::singleShot(1000, mainWindow, SLOT(close())); // This should quit the application

   723         QTimer::singleShot(2000, &app, SLOT(quit()));        // This makes sure we quit even if it didn't

   724 

   725         app.exec();

   726 

   727         QCOMPARE(spy.count(), 1);

   728         QVERIFY(spy2.count() < 15);      // Should be around 10 if closing caused the quit

   729     }

   730     {

   731         int argc = 0;

   732         QApplication app(argc, 0, QApplication::GuiServer);

   733         QTimer timer;

   734         timer.setInterval(100);

   735 

   736         QSignalSpy spy(&app, SIGNAL(aboutToQuit()));

   737         QSignalSpy spy2(&timer, SIGNAL(timeout()));

   738