1 files changed, 53 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtQml/qmlregistertype_test.py b/sources/pyside6/tests/QtQml/qmlregistertype_test.py
new file mode 100644
index 000000000..0042d6fd3
--- /dev/null
+++ b/sources/pyside6/tests/QtQml/qmlregistertype_test.py
@@ -0,0 +1,53 @@
+# Copyright (C) 2024 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
+
+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.QtCore import QCoreApplication, QObject  # noqa: F401
+from PySide6.QtQml import QQmlApplicationEngine, qmlRegisterType
+
+
+class BaseClass(QObject):
+    def __init__(self, p=None):
+        super().__init__(p)
+
+
+class ChildClass(BaseClass):
+    def __init__(self, p=None):
+        super().__init__(p)
+
+
+class TestQmlRegisterType(UsesQApplication):
+    """Test the legacy QML register functions."""
+
+    def test(self):
+        qmlRegisterType(BaseClass, 'test', 1, 0, 'BaseClass')
+        qmlRegisterType(ChildClass, 'test', 1, 0, 'ChildClass')
+        # PYSIDE-2709: qmlRegisterType() would set additional class info
+        # on the meta objects for registration which caused another meta
+        # object to be created, breaking inheritance.
+        child = ChildClass()
+        base = BaseClass()
+        self.assertTrue(child.metaObject().inherits(base.metaObject()))
+
+        engine = QQmlApplicationEngine()
+        file = Path(__file__).resolve().parent / 'qmlregistertype_test.qml'
+
+        engine.load(file)
+        rootObjects = engine.rootObjects()
+        self.assertTrue(rootObjects)
+        self.assertTrue(type(rootObjects[0]), ChildClass)
+
+
+if __name__ == '__main__':
+    unittest.main()