# -*- coding: utf-8 -*-

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## This file is part of the test suite of Qt for Python.
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''' Test case for QAbstractListModel.createIndex and QModelIndex.internalPointer'''

import sys
import unittest
from PySide2.QtCore import *
from PySide2.support import VoidPtr

class MyModel (QAbstractListModel):
    pass

class TestQModelIndexInternalPointer(unittest.TestCase):
    ''' Test case for QAbstractListModel.createIndex and QModelIndex.internalPointer'''

    def setUp(self):
        #Acquire resources
        self.model = MyModel()

    def tearDown(self):
        #Release resources
        del self.model

    def testInternalPointer(self):
        #Test QAbstractListModel.createIndex and
        #QModelIndex.internalPointer
        obj = QObject()
        obj_ptr = VoidPtr(obj)
        idx = self.model.createIndex(0, 0, obj)
        i = idx.internalPointer()
        self.assertEqual(int(obj_ptr), int(i))

    def testReferenceCounting(self):
        #Test reference counting when retrieving data with
        #QModelIndex.internalPointer
        o = QObject()
        o_refcnt = sys.getrefcount(o)
        idx = self.model.createIndex(0, 0, o)
        ptr = idx.internalPointer()
        self.assertEqual(sys.getrefcount(o), o_refcnt)


    def testIndexForDefaultDataArg(self):
        #Test QAbstractListModel.createIndex with a default
        #value for data argument
        idx = self.model.createIndex(0, 0)
        self.assertEqual(None, idx.internalPointer())

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

