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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
'''Test cases for parent-child relationship'''
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, QCoreApplication
class ChildrenCoreApplication(unittest.TestCase):
'''Test case for calling QObject.children after creating a QCoreApp'''
def testQCoreAppChildren(self):
# QObject.children() after creating a QCoreApplication
# Minimal test:
# 1- Create QCoreApp
# 2- Create parent and childrens
# 3- While keeping the children alive, call parent.children()
# 4- Delete parent
app = QCoreApplication([])
parent = QObject()
children = [QObject(parent) for x in range(25)]
# Uncomment the lines below to make the test pass
# del children
# del child2
del parent # XXX Segfaults here
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertTrue(True)
if __name__ == '__main__':
unittest.main()
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