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Add auto-test for crash in QCocoaBackingStore

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This issue has been solved some time between 5.6 and 5.6.0.
We just make sure to protect against further regressions.

Change-Id: Ic3fdad901ed5f36792ae04b3d65047da95eea668
Task-number: QTBUG-50561
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
This commit is contained in:
Gabriel de Dietrich 2016-02-11 10:37:10 -08:00 committed by Morten Johan Sørvig
parent e9dedb683a
commit e342a2e05f
1 changed files with 45 additions and 0 deletions
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45
tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
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@ -46,6 +46,8 @@
#include <qboxlayout.h>
#include <qtabwidget.h>
#include <qlabel.h>
#include <qmainwindow.h>
#include <qtoolbar.h>
#include <private/qwindow_p.h>
static inline void setFrameless(QWidget *w)
@ -99,6 +101,8 @@ private slots:
void tst_move_count();
void tst_eventfilter_on_toplevel();
void QTBUG_50561_QCocoaBackingStore_paintDevice_crash();
};
void tst_QWidget_window::initTestCase()
@ -795,5 +799,46 @@ void tst_QWidget_window::tst_eventfilter_on_toplevel()
QTRY_COMPARE(filter.eventCount, 1);
}
class ApplicationStateSaver
{
public:
ApplicationStateSaver()
{
QApplication::setAttribute(Qt::AA_NativeWindows, true);
QApplication::setQuitOnLastWindowClosed(false);
}
~ApplicationStateSaver()
{
QApplication::setAttribute(Qt::AA_NativeWindows, false);
QApplication::setQuitOnLastWindowClosed(true);
}
};
void tst_QWidget_window::QTBUG_50561_QCocoaBackingStore_paintDevice_crash()
{
// Keep application state clean if testcase fails
ApplicationStateSaver as;
QMainWindow w;
w.addToolBar(new QToolBar(&w));
w.show();
QTest::qWaitForWindowExposed(&w);
// Simulate window system close
QCloseEvent *e = new QCloseEvent;
e->accept();
qApp->postEvent(w.windowHandle(), e);
qApp->processEvents();
// Show again
w.show();
qApp->processEvents();
// No crash, all good.
// Wrap up and leave
w.close();
}
QTEST_MAIN(tst_QWidget_window)
#include "tst_qwidget_window.moc"