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diff --git a/sources/shiboken2/tests/samplebinding/ownership_transference_test.py b/sources/shiboken2/tests/samplebinding/ownership_transference_test.py
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+#############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the test suite of PySide2.
+##
+## $QT_BEGIN_LICENSE:GPL-EXCEPT$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 as published by the Free Software
+## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+'''The BlackBox class has cases of ownership transference between C++ and Python.'''
+
+import sys
+import unittest
+
+from sample import ObjectType, BlackBox
+
+class BlackBoxTest(unittest.TestCase):
+ '''The BlackBox class has cases of ownership transference between C++ and Python.'''
+
+ def testOwnershipTransference(self):
+ '''Ownership transference from Python to C++ and back again.'''
+ o1 = ObjectType()
+ o1.setObjectName('object1')
+ o1_refcnt = sys.getrefcount(o1)
+ o2 = ObjectType()
+ o2.setObjectName('object2')
+ o2_refcnt = sys.getrefcount(o2)
+ bb = BlackBox()
+ o1_ticket = bb.keepObjectType(o1)
+ o2_ticket = bb.keepObjectType(o2)
+ self.assertEqual(set(bb.objects()), set([o1, o2]))
+ self.assertEqual(str(o1.objectName()), 'object1')
+ self.assertEqual(str(o2.objectName()), 'object2')
+ self.assertEqual(sys.getrefcount(o1), o1_refcnt + 1) # PySide give +1 ref to object with c++ ownership
+ self.assertEqual(sys.getrefcount(o2), o2_refcnt + 1)
+ o2 = bb.retrieveObjectType(o2_ticket)
+ self.assertEqual(sys.getrefcount(o2), o2_refcnt)
+ del bb
+ self.assertRaises(RuntimeError, o1.objectName)
+ self.assertEqual(str(o2.objectName()), 'object2')
+ self.assertEqual(sys.getrefcount(o2), o2_refcnt)
+
+ def testBlackBoxReleasingUnknownObjectType(self):
+ '''Asks BlackBox to release an unknown ObjectType.'''
+ o1 = ObjectType()
+ o2 = ObjectType()
+ bb = BlackBox()
+ o1_ticket = bb.keepObjectType(o1)
+ o3 = bb.retrieveObjectType(-5)
+ self.assertEqual(o3, None)
+
+ def testOwnershipTransferenceCppCreated(self):
+ '''Ownership transference using a C++ created object.'''
+ o1 = ObjectType.create()
+ o1.setObjectName('object1')
+ o1_refcnt = sys.getrefcount(o1)
+ bb = BlackBox()
+ o1_ticket = bb.keepObjectType(o1)
+ self.assertRaises(RuntimeError, o1.objectName)
+
+if __name__ == '__main__':
+ unittest.main()
+