#############################################################################
##
## 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.
##
## $QT_END_LICENSE$
##
#############################################################################

import unittest
import sys
import weakref

from helper import UsesQApplication

from PySide2.QtGui import QTextBlockUserData, QTextCursor
from PySide2.QtWidgets import QTextEdit

class TestUserData(QTextBlockUserData):
    def __init__(self, data):
        super(TestUserData, self).__init__()
        self.data = data

class TestUserDataRefCount(UsesQApplication):
    def testRefcount(self):
        textedit = QTextEdit()
        textedit.setReadOnly(True)
        doc = textedit.document()
        cursor = QTextCursor(doc)
        cursor.insertText("PySide Rocks")
        ud = TestUserData({"Life": 42})
        self.assertEqual(sys.getrefcount(ud), 2)
        cursor.block().setUserData(ud)
        self.assertEqual(sys.getrefcount(ud), 3)
        ud2 = cursor.block().userData()
        self.assertEqual(sys.getrefcount(ud), 4)
        self.udata = weakref.ref(ud, None)
        del ud, ud2
        self.assertEqual(sys.getrefcount(self.udata()), 2)

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