root / test / py / pycurl_reset_unittest.py @ 9db0b351
History | View | Annotate | Download (2.3 kB)
1 |
#!/usr/bin/python
|
---|---|
2 |
#
|
3 |
|
4 |
# Copyright (C) 2011 Google Inc.
|
5 |
#
|
6 |
# This program is free software; you can redistribute it and/or modify
|
7 |
# it under the terms of the GNU General Public License as published by
|
8 |
# the Free Software Foundation; either version 2 of the License, or
|
9 |
# (at your option) any later version.
|
10 |
#
|
11 |
# This program is distributed in the hope that it will be useful, but
|
12 |
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 |
# General Public License for more details.
|
15 |
#
|
16 |
# You should have received a copy of the GNU General Public License
|
17 |
# along with this program; if not, write to the Free Software
|
18 |
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 |
# 02110-1301, USA.
|
20 |
|
21 |
|
22 |
"""Script for testing for an issue in PycURL"""
|
23 |
|
24 |
import sys |
25 |
import warnings |
26 |
import unittest |
27 |
import textwrap |
28 |
import pycurl |
29 |
|
30 |
import testutils |
31 |
|
32 |
|
33 |
DETAILS = [ |
34 |
("PycURL 7.19.0 added a new function named \"reset\" on \"pycurl.Curl\""
|
35 |
" objects to release all references to other resources. Unfortunately that"
|
36 |
" version contains a bug with reference counting on the \"None\" singleton,"
|
37 |
" leading to a crash of the Python interpreter after a certain amount of"
|
38 |
" performed requests. Your system uses a version of PycURL affected by this"
|
39 |
" issue. A patch is available at [1]. A detailed description can be found"
|
40 |
" at [2].\n"),
|
41 |
"\n",
|
42 |
("[1] http://sf.net/tracker/?"
|
43 |
"func=detail&aid=2893665&group_id=28236&atid=392777\n"),
|
44 |
"[2] https://bugzilla.redhat.com/show_bug.cgi?id=624559",
|
45 |
] |
46 |
|
47 |
|
48 |
class TestPyCurlReset(unittest.TestCase): |
49 |
def test(self): |
50 |
start_refcount = sys.getrefcount(None)
|
51 |
abort_refcount = int(start_refcount * 0.8) |
52 |
|
53 |
assert start_refcount > 100 |
54 |
|
55 |
curl = pycurl.Curl() |
56 |
try:
|
57 |
reset_fn = curl.reset |
58 |
except AttributeError: |
59 |
pass
|
60 |
else:
|
61 |
for i in range(start_refcount * 2): |
62 |
reset_fn() |
63 |
# The bug can be detected if calling "reset" several times continously
|
64 |
# reduces the number of references
|
65 |
if sys.getrefcount(None) < abort_refcount: |
66 |
print >>sys.stderr, "#" * 78 |
67 |
for line in DETAILS: |
68 |
print >>sys.stderr, textwrap.fill(line, width=78) |
69 |
print >>sys.stderr, "#" * 78 |
70 |
break
|
71 |
|
72 |
|
73 |
if __name__ == "__main__": |
74 |
testutils.GanetiTestProgram() |