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Diffstat (limited to 'sources/shiboken2/tests/samplebinding/reference_test.py')
-rw-r--r-- | sources/shiboken2/tests/samplebinding/reference_test.py | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sources/shiboken2/tests/samplebinding/reference_test.py b/sources/shiboken2/tests/samplebinding/reference_test.py new file mode 100644 index 000000000..aaf809451 --- /dev/null +++ b/sources/shiboken2/tests/samplebinding/reference_test.py @@ -0,0 +1,122 @@ +#!/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. +## +## $QT_END_LICENSE$ +## +############################################################################# + +'''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() + |