#!/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 case for overflowing C++ numeric types.'''

import sys
import unittest

from sample import *
from py3kcompat import IS_PY3K, long

class OverflowTest(unittest.TestCase):
    '''Test case for overflowing C++ numeric types.'''

    def testUnsignedInt(self):
        '''C++ function receives an unsigned int argument and raise OverflowError if the value is negative.'''
        val = 100
        self.assertEqual(doubleUnsignedInt(val), 2 * val)
        val *= -1
        self.assertRaises(OverflowError, doubleUnsignedInt, val)

    def testLongLong(self):
        '''C++ function receives an long long argument and raise OverflowError if the value is negative.'''
        val = 100
        self.assertEqual(doubleLongLong(val), 2 * val)
        val = long(100)
        self.assertEqual(doubleLongLong(val), 2 * val)
        val = (2 << 64) + 1
        self.assertRaises(OverflowError, doubleLongLong, val)

    def testUnsignedLongLong(self):
        '''C++ function receives an unsigned long long argument and raise OverflowError if the value is negative.'''
        val = 100
        self.assertEqual(doubleUnsignedLongLong(val), 2 * val)
        val = long(100)
        self.assertEqual(doubleUnsignedLongLong(val), 2 * val)
        val = -100
        self.assertRaises(OverflowError, doubleUnsignedLongLong, val)
        val = long(-200)
        self.assertRaises(OverflowError, doubleUnsignedLongLong, val)

    def testOverflow(self):
        '''Calls function with unsigned int parameter using an overflowing value.'''
        self.assertRaises(OverflowError, doubleUnsignedInt, 42415335332353253)
        doubleUnsignedInt(0xdeadbeef)

    def testShortOverflow(self):
        '''Calls function with short parameter using an overflowing value.'''
        doubleShort(-3)
        self.assertRaises(OverflowError, doubleShort, 0xFFFF*-1)
        self.assertRaises(OverflowError, doubleShort, 0xFFFF + 1)

    def testOverflowOnCtor(self):
        '''Calls object ctor with int parameter using overflowing values.'''
        self.assertRaises(OverflowError, Point, 42415335332353253, 42415335332353253)

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

