1 files changed, 97 insertions, 0 deletions
diff --git a/sources/shiboken6/tests/samplebinding/multi_cpp_inheritance_test.py b/sources/shiboken6/tests/samplebinding/multi_cpp_inheritance_test.py
new file mode 100644
index 000000000..fc6b26c3f
--- /dev/null
+++ b/sources/shiboken6/tests/samplebinding/multi_cpp_inheritance_test.py
@@ -0,0 +1,97 @@
+#!/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
+
+'''Test cases for multiple inheritance'''
+
+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, Point, Str
+
+
+class SimpleUseCase(ObjectType, Str):
+    def __init__(self, name):
+        ObjectType.__init__(self)
+        Str.__init__(self, name)
+
+
+class SimpleUseCaseReverse(Str, ObjectType):
+    def __init__(self, name):
+        ObjectType.__init__(self)
+        Str.__init__(self, name)
+
+
+class SimpleUseCase2(SimpleUseCase):
+    def __init__(self, name):
+        SimpleUseCase.__init__(self, name)
+
+
+class ComplexUseCase(SimpleUseCase2, Point):
+    def __init__(self, name):
+        SimpleUseCase2.__init__(self, name)
+        Point.__init__(self)
+
+
+class ComplexUseCaseReverse(Point, SimpleUseCase2):
+    def __init__(self, name):
+        SimpleUseCase2.__init__(self, name)
+        Point.__init__(self)
+
+
+class MultipleCppDerivedTest(unittest.TestCase):
+    def testInstantiation(self):
+        s = SimpleUseCase("Hi")
+        self.assertEqual(s, "Hi")
+        s.setObjectName(s)
+        self.assertEqual(s.objectName(), "Hi")
+
+    def testInstantiation2(self):
+        s = SimpleUseCase2("Hi")
+        self.assertEqual(s, "Hi")
+        s.setObjectName(s)
+        self.assertEqual(s.objectName(), "Hi")
+
+    def testComplexInstantiation(self):
+        c = ComplexUseCase("Hi")
+        self.assertEqual(c, "Hi")
+        c.setObjectName(c)
+        self.assertEqual(c.objectName(), "Hi")
+        c.setX(2)
+        self.assertEqual(c.x(), 2)
+
+
+class MultipleCppDerivedReverseTest(unittest.TestCase):
+    def testInstantiation(self):
+        s = SimpleUseCaseReverse("Hi")
+        self.assertEqual(s, "Hi")
+        s.setObjectName(s)
+        self.assertEqual(s.objectName(), "Hi")
+
+    def testInstantiation2(self):
+        s = SimpleUseCase2("Hi")
+        self.assertEqual(s, "Hi")
+        s.setObjectName(s)
+        self.assertEqual(s.objectName(), "Hi")
+
+    def testComplexInstantiation(self):
+        # PYSIDE-1564: This test can no longer work because of this MRO:
+        # ('ComplexUseCaseReverse', 'Point', 'SimpleUseCase2', 'SimpleUseCase',
+        #  'ObjectType', 'Str', 'Object', 'object')
+        # By multiple inheritance Point would be called first but has no argument.
+        with self.assertRaises(TypeError):
+            c = ComplexUseCaseReverse("Hi")  # noqa: F841
+        # c.setObjectName(c)
+        # self.assertEqual(c.objectName(), "Hi")
+        # c.setX(2);
+        # self.assertEqual(c, Point(2, 0))
+
+
+if __name__ == '__main__':
+    unittest.main()