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-rw-r--r--sources/pyside6/tests/signals/segfault_proxyparent_test.py78
1 files changed, 78 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/segfault_proxyparent_test.py b/sources/pyside6/tests/signals/segfault_proxyparent_test.py
new file mode 100644
index 000000000..cb0df0978
--- /dev/null
+++ b/sources/pyside6/tests/signals/segfault_proxyparent_test.py
@@ -0,0 +1,78 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+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, 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.
+
+
+class Sender(QObject):
+
+ bar = Signal(int)
+
+ def __init__(self, parent=None):
+ QObject.__init__(self, parent)
+
+
+class Joe(QObject):
+
+ bar = Signal(int)
+
+ 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: # noqa: E722
+ pass
+ # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+ gc.collect()
+
+ 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 = Sender()
+ obj.bar.connect(self.callback)
+ self.args = (33,)
+ obj.bar.emit(self.args[0])
+ self.assertTrue(self.called)
+ del obj
+ # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+ gc.collect()
+
+ obj = Joe()
+ obj.bar.connect(self.callback)
+ self.args = (33,)
+ obj.bar.emit(self.args[0])
+ self.assertTrue(self.called)
+
+
+if __name__ == '__main__':
+ unittest.main()