1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
#!/usr/bin/env python3
#
# Test interaction with gdb, i.e. the cysignals-CSI script
#
# NOTE: this test is known to be broken in some cases, see
# https://github.com/sagemath/cysignals/pull/52
#
import unittest
import os
import sys
from subprocess import Popen, PIPE
from tempfile import mkdtemp
from shutil import rmtree
class TestGDB(unittest.TestCase):
def setUp(self):
# Store crash logs in a temporary directory
self.crash_dir = mkdtemp()
self.env = dict(os.environ)
self.env["CYSIGNALS_CRASH_LOGS"] = self.crash_dir
def tearDown(self):
rmtree(self.crash_dir)
def test_gdb(self):
# Run a Python subprocess which we intentionally crash to inspect the
# crash logfile.
p = Popen([sys.executable], stdin=PIPE, env=self.env)
with p.stdin as stdin:
stdin.write(b"from cysignals.tests import *\n")
stdin.write(b"unguarded_dereference_null_pointer()\n")
ret = p.wait()
self.assertLess(ret, 0)
# Check crash log
logs = [os.path.join(self.crash_dir, fn)
for fn in os.listdir(self.crash_dir) if fn.endswith(".log")]
self.assertEqual(len(logs), 1)
log = open(logs[0]).read()
self.assertIn(b"Stack backtrace", log)
self.assertIn(b"Cython backtrace", log)
self.assertIn(b"__pyx_pf_9cysignals_5tests_46unguarded_dereference_null_pointer()", log)
self.assertIn(b"cdef void dereference_null_pointer() nogil:", log)
if __name__ == '__main__':
unittest.main()
|
