1 files changed, 46 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/bug_811.py b/sources/pyside6/tests/QtWidgets/bug_811.py
new file mode 100644
index 000000000..b3537e1f7
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/bug_811.py
@@ -0,0 +1,46 @@
+# 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 os
+import sys
+import unittest
+import weakref
+
+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 helper.usesqapplication import UsesQApplication
+
+from PySide6.QtGui import QTextBlockUserData, QTextCursor
+from PySide6.QtWidgets import QTextEdit
+
+
+class TestUserData(QTextBlockUserData):
+    def __init__(self, data):
+        super().__init__()
+        self.data = data
+
+
+class TestUserDataRefCount(UsesQApplication):
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testRefcount(self):
+        textedit = QTextEdit()
+        textedit.setReadOnly(True)
+        doc = textedit.document()
+        cursor = QTextCursor(doc)
+        cursor.insertText("PySide Rocks")
+        ud = TestUserData({"Life": 42})
+        self.assertEqual(sys.getrefcount(ud), 2)
+        cursor.block().setUserData(ud)
+        self.assertEqual(sys.getrefcount(ud), 3)
+        ud2 = cursor.block().userData()
+        self.assertEqual(sys.getrefcount(ud), 4)
+        self.udata = weakref.ref(ud, None)
+        del ud, ud2
+        self.assertEqual(sys.getrefcount(self.udata()), 2)
+
+
+if __name__ == '__main__':
+    unittest.main()