1 files changed, 49 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/bug_576.py b/sources/pyside6/tests/QtWidgets/bug_576.py
new file mode 100644
index 000000000..4a17e7aa8
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/bug_576.py
@@ -0,0 +1,49 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+""" Unittest for bug #576 """
+""" http://bugs.openbossa.org/show_bug.cgi?id=576 """
+
+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
+from PySide6.QtWidgets import QApplication, QPushButton, QWidget
+
+
+class Bug576(unittest.TestCase):
+    def onButtonDestroyed(self, button):
+        self._destroyed = True
+        self.assertTrue(isinstance(button, QPushButton))
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testWidgetParent(self):
+        self._destroyed = False
+        app = QApplication(sys.argv)
+        w = QWidget()
+
+        b = QPushButton("test")
+        b.destroyed[QObject].connect(self.onButtonDestroyed)
+        self.assertEqual(sys.getrefcount(b), 2)
+        b.setParent(w)
+        self.assertEqual(sys.getrefcount(b), 3)
+        b.parent()
+        self.assertEqual(sys.getrefcount(b), 3)
+        b.setParent(None)
+        self.assertEqual(sys.getrefcount(b), 2)
+        del b
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        self.assertTrue(self._destroyed)
+
+
+if __name__ == '__main__':
+    unittest.main()
+