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#!/usr/bin/env python
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Test case for overflowing C++ numeric types.'''
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from shiboken_paths import init_paths
init_paths()
from sample import (Point, doubleLongLong, doubleShort, doubleUnsignedInt,
doubleUnsignedLongLong)
class OverflowTest(unittest.TestCase):
'''Test case for overflowing C++ numeric types.'''
def assertRaises(self, *args, **kwds):
if not hasattr(sys, "pypy_version_info"):
# PYSIDE-535: PyPy complains "Fatal RPython error: NotImplementedError"
return super().assertRaises(*args, **kwds)
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 = int(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 = int(100)
self.assertEqual(doubleUnsignedLongLong(val), 2 * val)
val = -100
self.assertRaises(OverflowError, doubleUnsignedLongLong, val)
val = int(-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()
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