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#############################################################################
##
## Copyright (C) 2016 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.
##
## $QT_END_LICENSE$
##
#############################################################################
import os
import gc
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 import QtGui, QtWidgets
try:
from sys import gettotalrefcount
skiptest = False
except ImportError:
skiptest = True
class ConnectTest(unittest.TestCase):
def callback(self, o):
print("callback")
self._called = o
def testNoLeaks_ConnectAndDisconnect(self):
self._called = None
app = QtWidgets.QApplication([])
o = QtWidgets.QTreeView()
o.setModel(QtGui.QStandardItemModel())
o.selectionModel().destroyed.connect(self.callback)
o.selectionModel().destroyed.disconnect(self.callback)
gc.collect()
# if this is no debug build, then we check at least that
# we do not crash any longer.
if not skiptest:
total = gettotalrefcount()
for idx in range(1000):
o.selectionModel().destroyed.connect(self.callback)
o.selectionModel().destroyed.disconnect(self.callback)
gc.collect()
if not skiptest:
delta = gettotalrefcount() - total
print("delta total refcount =", delta)
self.assertTrue(abs(delta) < 10)
if __name__ == '__main__':
unittest.main()
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