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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
from helper.usesqapplication import UsesQApplication
from PySide6.QtCore import QObject, QEvent
from PySide6.QtGui import QWindow
class MyFilter(QObject):
def eventFilter(self, obj, event):
if event.type() == QEvent.KeyPress:
pass
return QObject.eventFilter(self, obj, event)
class EventFilter(UsesQApplication):
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testRefCount(self):
o = QObject()
filt = MyFilter()
o.installEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)
o.installEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)
o.removeEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)
def testObjectDestructorOrder(self):
w = QWindow()
filt = MyFilter()
filt.app = self.app
w.installEventFilter(filt)
w.show()
w.close()
w = None
self.assertTrue(True)
if __name__ == '__main__':
unittest.main()
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