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path: root/sources/shiboken2/tests/samplebinding/ownership_invalidate_child_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 the Qt for Python project.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## 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.
##
## $QT_END_LICENSE$
##
#############################################################################

'''Tests for invalidating a C++ created child that was already on the care of a parent.'''

import unittest

from sample import ObjectType, BlackBox


class InvalidateChildTest(unittest.TestCase):
    '''Tests for invalidating a C++ created child that was already on the care of a parent.'''

    def testInvalidateChild(self):
        '''Invalidating method call should remove child from the care of a parent if it has one.'''
        parent = ObjectType()
        child1 = ObjectType(parent)
        child1.setObjectName('child1')
        child2 = ObjectType.create()
        child2.setParent(parent)
        child2.setObjectName('child2')

        self.assertEqual(parent.children(), [child1, child2])

        bbox = BlackBox()

        # This method steals ownership from Python to C++.
        bbox.keepObjectType(child1)
        self.assertEqual(parent.children(), [child2])

        bbox.keepObjectType(child2)
        self.assertEqual(parent.children(), [])

        del parent

        self.assertEqual(child1.objectName(), 'child1')
        self.assertRaises(RuntimeError, child2.objectName)

if __name__ == '__main__':
    unittest.main()