1 files changed, 71 insertions, 0 deletions
diff --git a/sources/shiboken6/tests/samplebinding/ownership_delete_parent_test.py b/sources/shiboken6/tests/samplebinding/ownership_delete_parent_test.py
new file mode 100644
index 000000000..8f654639c
--- /dev/null
+++ b/sources/shiboken6/tests/samplebinding/ownership_delete_parent_test.py
@@ -0,0 +1,71 @@
+#!/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 destroying the 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
+
+
+class DeleteParentTest(unittest.TestCase):
+    '''Test case for deleting a parent object'''
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testParentDestructor(self):
+        '''Delete parent object should invalidate child'''
+        parent = ObjectType()
+        child = ObjectType()
+        child.setParent(parent)
+
+        refcount_before = sys.getrefcount(child)
+
+        del parent
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        self.assertRaises(RuntimeError, child.objectName)
+        self.assertEqual(sys.getrefcount(child), refcount_before - 1)
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testParentDestructorMultipleChildren(self):
+        '''Delete parent object should invalidate all children'''
+        parent = ObjectType()
+        children = [ObjectType() for _ in range(10)]
+
+        for child in children:
+            child.setParent(parent)
+
+        del parent
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        for i, child in enumerate(children):
+            self.assertRaises(RuntimeError, child.objectName)
+            self.assertEqual(sys.getrefcount(child), 4)
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testRecursiveParentDelete(self):
+        '''Delete parent should invalidate grandchildren'''
+        parent = ObjectType()
+        child = ObjectType(parent)
+        grandchild = ObjectType(child)
+
+        del parent
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        self.assertRaises(RuntimeError, child.objectName)
+        self.assertEqual(sys.getrefcount(child), 2)
+        self.assertRaises(RuntimeError, grandchild.objectName)
+        self.assertEqual(sys.getrefcount(grandchild), 2)
+
+
+if __name__ == '__main__':
+    unittest.main()