1 files changed, 51 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/qobject_mi_test.py b/sources/pyside6/tests/QtWidgets/qobject_mi_test.py
new file mode 100644
index 000000000..d90961495
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/qobject_mi_test.py
@@ -0,0 +1,51 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+'''Test cases for multiple inheritance from 2 QObjects'''
+
+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.QtGui import QIntValidator, QValidator
+from PySide6.QtWidgets import QWidget
+
+from helper.usesqapplication import UsesQApplication
+
+
+class WidgetValidator(QWidget, QIntValidator):
+    def __init__(self, parent=None):
+        QWidget.__init__(self, parent)
+        QIntValidator.__init__(self, parent)
+
+
+class DoubleQObjectInheritanceTest(UsesQApplication):
+
+    def testDouble(self):
+        '''Double inheritance from QObject classes'''
+
+        obj = WidgetValidator()
+
+        # QObject methods
+        obj.setObjectName('aaaa')
+        self.assertEqual(obj.objectName(), 'aaaa')
+
+        # QWidget methods
+        obj.setVisible(False)
+        self.assertFalse(obj.isVisible())
+
+        # QIntValidator methods
+        state, string, number = obj.validate('aaaa', 0)
+        self.assertEqual(state, QValidator.Invalid)
+        state, string, number = obj.validate('33', 0)
+        self.assertEqual(state, QValidator.Acceptable)
+
+
+if __name__ == '__main__':
+    unittest.main()