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#############################################################################
##
## Copyright (C) 2021 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the test suite of Qt for Python.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
""" Unittest for bug #576 """
""" http://bugs.openbossa.org/show_bug.cgi?id=576 """
import gc
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 PySide6.QtCore import QObject
from PySide6.QtWidgets import QApplication, QPushButton, QWidget
class Bug576(unittest.TestCase):
def onButtonDestroyed(self, button):
self._destroyed = True
self.assertTrue(isinstance(button, QPushButton))
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testWidgetParent(self):
self._destroyed = False
app = QApplication(sys.argv)
w = QWidget()
b = QPushButton("test")
b.destroyed[QObject].connect(self.onButtonDestroyed)
self.assertEqual(sys.getrefcount(b), 2)
b.setParent(w)
self.assertEqual(sys.getrefcount(b), 3)
b.parent()
self.assertEqual(sys.getrefcount(b), 3)
b.setParent(None)
self.assertEqual(sys.getrefcount(b), 2)
del b
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertTrue(self._destroyed)
if __name__ == '__main__':
unittest.main()
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