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#!/usr/bin/env python
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Tests for invalidating a C++ created child that was already on the care of a parent.'''
import gc
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from shiboken_paths import init_paths
init_paths()
from sample import ObjectType, BlackBox
class InvalidateChildTest(unittest.TestCase):
'''Tests for invalidating a C++ created child that was already on the care of a parent.'''
def testInvalidateChild(self):
'''Invalidating method call should remove child from the care of a parent if it has one.'''
parent = ObjectType()
child1 = ObjectType(parent)
child1.setObjectName('child1')
child2 = ObjectType.create()
child2.setParent(parent)
child2.setObjectName('child2')
self.assertEqual(parent.children(), [child1, child2])
bbox = BlackBox()
# This method steals ownership from Python to C++.
bbox.keepObjectType(child1)
self.assertEqual(parent.children(), [child2])
bbox.keepObjectType(child2)
self.assertEqual(parent.children(), [])
del parent
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
# PYSIDE-535: Why do I need to do it twice, here?
gc.collect()
self.assertEqual(child1.objectName(), 'child1')
self.assertRaises(RuntimeError, child2.objectName)
if __name__ == '__main__':
unittest.main()
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