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gh-111495: Test C API functions with extreme sizes and indices (GH-111631)

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Serhiy Storchaka 2023-11-04 11:40:46 +02:00 • committed by GitHub
parent f48e669504
commit a8e1f474c2
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4 changed files with 133 additions and 39 deletions
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10
Lib/test/test_capi/test_bytes.py
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@ -1,8 +1,8 @@
import unittest
import sys
from test.support import import_helper
_testcapi = import_helper.import_module('_testcapi')
from _testcapi import PY_SSIZE_T_MIN, PY_SSIZE_T_MAX
NULL = None
@ -55,10 +55,13 @@ class CAPITest(unittest.TestCase):
self.assertEqual(fromstringandsize(b'', 0), b'')
self.assertEqual(fromstringandsize(NULL, 0), b'')
self.assertEqual(len(fromstringandsize(NULL, 3)), 3)
self.assertRaises((MemoryError, OverflowError), fromstringandsize, NULL, sys.maxsize)
self.assertRaises((MemoryError, OverflowError),
fromstringandsize, NULL, PY_SSIZE_T_MAX)
self.assertRaises(SystemError, fromstringandsize, b'abc', -1)
self.assertRaises(SystemError, fromstringandsize, b'abc', PY_SSIZE_T_MIN)
self.assertRaises(SystemError, fromstringandsize, NULL, -1)
self.assertRaises(SystemError, fromstringandsize, NULL, PY_SSIZE_T_MIN)
def test_fromstring(self):
# Test PyBytes_FromString()
@ -208,7 +211,10 @@ class CAPITest(unittest.TestCase):
self.assertEqual(decodeescape(br'x\xa\xy', 'ignore'), b'xy')
self.assertRaises(ValueError, decodeescape, b'\\', 'spam')
self.assertEqual(decodeescape(NULL), b'')
self.assertRaises(OverflowError, decodeescape, b'abc', NULL, PY_SSIZE_T_MAX)
self.assertRaises(OverflowError, decodeescape, NULL, NULL, PY_SSIZE_T_MAX)
# CRASHES decodeescape(b'abc', NULL, -1)
# CRASHES decodeescape(NULL, NULL, 1)