#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
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## Copyright (C) 2016 The Qt Company Ltd.
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## This file is part of the test suite of Qt for Python.
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'''Test cases for virtual destructor.'''

import sys
import unittest

from sample import VirtualDtor

class ExtendedVirtualDtor(VirtualDtor):
    def __init__(self):
        VirtualDtor.__init__(self)

class VirtualDtorTest(unittest.TestCase):
    '''Test case for virtual destructor.'''

    def setUp(self):
        VirtualDtor.resetDtorCounter()

    def testVirtualDtor(self):
        '''Original virtual destructor is being called.'''
        dtor_called = VirtualDtor.dtorCalled()
        for i in range(1, 10):
            vd = VirtualDtor()
            del vd
            self.assertEqual(VirtualDtor.dtorCalled(), dtor_called + i)

    def testVirtualDtorOnCppCreatedObject(self):
        '''Original virtual destructor is being called for a C++ created object.'''
        dtor_called = VirtualDtor.dtorCalled()
        for i in range(1, 10):
            vd = VirtualDtor.create()
            del vd
            self.assertEqual(VirtualDtor.dtorCalled(), dtor_called + i)

    def testDtorOnDerivedClass(self):
        '''Original virtual destructor is being called for a derived class.'''
        dtor_called = ExtendedVirtualDtor.dtorCalled()
        for i in range(1, 10):
            evd = ExtendedVirtualDtor()
            del evd
            self.assertEqual(ExtendedVirtualDtor.dtorCalled(), dtor_called + i)


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