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Issue #4583: crash after resizing an array.array which has buffer exports.

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This commit is contained in:
Antoine Pitrou 2008-12-18 17:08:32 +00:00
parent f289ae6f01
commit 3ad3a0d366
3 changed files with 68 additions and 98 deletions
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18
Lib/test/test_array.py
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@ -8,6 +8,7 @@ from test import support
from weakref import proxy
import array, io, math
from pickle import loads, dumps
import operator
class ArraySubclass(array.array):
pass
@ -709,8 +710,23 @@ class BaseTest(unittest.TestCase):
def test_buffer(self):
a = array.array(self.typecode, self.example)
b = bytes(memoryview(a))
m = memoryview(a)
b = bytes(m)
self.assertEqual(b, a.tostring())
self.assertEqual(b[0], a.tostring()[0])
# Resizing is forbidden when there are buffer exports
self.assertRaises(BufferError, a.append, a[0])
self.assertRaises(BufferError, a.extend, a[0:1])
self.assertRaises(BufferError, a.remove, a[0])
self.assertRaises(BufferError, a.fromlist, a.tolist())
self.assertRaises(BufferError, a.fromstring, a.tostring())
if self.typecode == 'u':
self.assertRaises(BufferError, a.fromunicode, a.tounicode())
self.assertRaises(BufferError, operator.setitem, a, slice(0, 0), a)
self.assertRaises(BufferError, operator.delitem, a, 0)
self.assertRaises(BufferError, operator.delitem, a, slice(0, 1))
self.assertRaises(BufferError, operator.irepeat, a, 2)
self.assertRaises(BufferError, operator.irepeat, a, 0)
def test_weakref(self):
s = array.array(self.typecode, self.example)