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diff --git a/sources/shiboken2/tests/samplebinding/reference_test.py b/sources/shiboken2/tests/samplebinding/reference_test.py
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--- a/sources/shiboken2/tests/samplebinding/reference_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 Qt for Python.
-##
-## $QT_BEGIN_LICENSE:GPL-EXCEPT$
-## 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.
-##
-## $QT_END_LICENSE$
-##
-#############################################################################
-
-'''Test cases for methods that receive references to objects.'''
-
-import sys
-import unittest
-
-from sample import *
-
-class ExtendedReference(Reference):
- def __init__(self):
- Reference.__init__(self)
- self.uses_reference_virtual_called = False
- self.uses_const_reference_virtual_called = False
- self.reference_inc = 1
- self.const_reference_inc = 2
- self.multiplier = 333
-
- def usesReferenceVirtual(self, ref, inc):
- self.uses_reference_virtual_called = True
- return ref.objId() + inc + self.reference_inc
-
- def usesConstReferenceVirtual(self, ref, inc):
- self.uses_const_reference_virtual_called = True
- return ref.objId() + inc + self.const_reference_inc
-
- def alterReferenceIdVirtual(self, ref):
- ref.setObjId(ref.objId() * self.multiplier)
-
-
-class ReferenceTest(unittest.TestCase):
- '''Test case for methods that receive references to objects.'''
-
- def testMethodThatReceivesReference(self):
- '''Test a method that receives a reference to an object as argument.'''
- objId = 123
- r = Reference(objId)
- self.assertEqual(Reference.usesReference(r), objId)
-
- def testCantSegFaultWhenReceiveNone(self):
- '''do not segfault when receiving None as argument.'''
- s = Str()
- self.assertTrue(None == s)
-
- def testMethodThatReceivesConstReference(self):
- '''Test a method that receives a const reference to an object as argument.'''
- objId = 123
- r = Reference(objId)
- self.assertEqual(Reference.usesConstReference(r), objId)
-
- def testModificationOfReference(self):
- '''Tests if the identity of a reference argument is preserved when passing it to be altered in C++.'''
- objId = 123
- r1 = Reference(objId)
- r1.alterReferenceIdVirtual(r1)
- self.assertEqual(r1.objId(), objId * Reference.multiplier())
-
- def testModificationOfReferenceCallingAVirtualIndirectly(self):
- '''Tests if the identity of a reference argument is preserved when passing it to be altered in C++ through a method that calls a virtual method.'''
- objId = 123
- r1 = Reference(objId)
- r1.callAlterReferenceIdVirtual(r1)
- self.assertEqual(r1.objId(), objId * Reference.multiplier())
-
- def testModificationOfReferenceCallingAReimplementedVirtualIndirectly(self):
- '''Test if a Python override of a virtual method with a reference parameter called from C++ alters the argument properly.'''
- objId = 123
- r = Reference(objId)
- er = ExtendedReference()
- result = er.callAlterReferenceIdVirtual(r)
- self.assertEqual(r.objId(), objId * er.multiplier)
-
- def testReimplementedVirtualMethodCallWithReferenceParameter(self):
- '''Test if a Python override of a virtual method with a reference parameter is correctly called from C++.'''
- inc = 9
- objId = 123
- r = Reference(objId)
- er = ExtendedReference()
- result = er.callUsesReferenceVirtual(r, inc)
- self.assertEqual(result, objId + inc + er.reference_inc)
-
- def testReimplementedVirtualMethodCallWithConstReferenceParameter(self):
- '''Test if a Python override of a virtual method with a const reference parameter is correctly called from C++.'''
- inc = 9
- objId = 123
- r = Reference(objId)
- er = ExtendedReference()
- result = er.callUsesConstReferenceVirtual(r, inc)
- self.assertEqual(result, objId + inc + er.const_reference_inc)
-
-if __name__ == '__main__':
- unittest.main()
-