1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
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()
|
