diff options
Diffstat (limited to 'sources/pyside2/tests/signals/segfault_proxyparent_test.py')
-rw-r--r-- | sources/pyside2/tests/signals/segfault_proxyparent_test.py | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sources/pyside2/tests/signals/segfault_proxyparent_test.py b/sources/pyside2/tests/signals/segfault_proxyparent_test.py new file mode 100644 index 000000000..b45e53579 --- /dev/null +++ b/sources/pyside2/tests/signals/segfault_proxyparent_test.py @@ -0,0 +1,86 @@ +############################################################################# +## +## Copyright (C) 2016 The Qt Company Ltd. +## Contact: https://www.qt.io/licensing/ +## +## This file is part of the test suite of PySide2. +## +## $QT_BEGIN_LICENSE:GPL-EXCEPT$ +## 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 unittest + +from PySide2.QtCore import QObject, SIGNAL + +# Description of the problem +# After creating an PyObject that inherits from QObject, connecting it, +# deleting it and later creating another Python QObject-based object, this +# new object will point to the same memory position as the first one. + +# Somehow the underlying QObject also points to the same position. + +# In PyQt4, the connection works fine with the same memory behavior, +# so it looks like specific to SIP. + +class Dummy(QObject): + def __init__(self, parent=None): + QObject.__init__(self, parent) + +class Joe(QObject): + def __init__(self, parent=None): + QObject.__init__(self, parent) + +class SegfaultCase(unittest.TestCase): + """Test case for the segfault happening when parent() is called inside + ProxyObject""" + + def setUp(self): + self.called = False + + def tearDown(self): + try: + del self.args + except: + pass + + def callback(self, *args): + if tuple(self.args) == args: + self.called = True + + def testSegfault(self): + """Regression: Segfault for qobjects in the same memory position.""" + obj = Dummy() + QObject.connect(obj, SIGNAL('bar(int)'), self.callback) + self.args = (33,) + obj.emit(SIGNAL('bar(int)'), self.args[0]) + self.assertTrue(self.called) + del obj + + obj = Joe() + QObject.connect(obj, SIGNAL('bar(int)'), self.callback) + self.args = (33,) + obj.emit(SIGNAL('bar(int)'), self.args[0]) + self.assertTrue(self.called) + + +if __name__ == '__main__': + unittest.main() + |