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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
# Copyright (C) 2007 Canonical Ltd
# Authors: Robert Collins <robert.collins@canonical.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Tests for the strace-invoking support."""
import errno
import subprocess
from bzrlib.strace import StraceFeature, strace_detailed, StraceResult
from bzrlib.tests import TestCaseWithTransport
class TestStraceFeature(TestCaseWithTransport):
def test_strace_detection(self):
"""Strace is available if its runnable."""
try:
proc = subprocess.Popen(['strace'],
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
proc.communicate()
found_strace = True
except OSError, e:
if e.errno == errno.ENOENT:
# strace is not installed
found_strace = False
else:
raise
self.assertEqual(found_strace, StraceFeature.available())
class TestStrace(TestCaseWithTransport):
_test_needs_features = [StraceFeature]
def test_strace_callable_is_called(self):
output = []
def function(positional, *args, **kwargs):
output.append((positional, args, kwargs))
strace_detailed(function, ["a", "b"], {"c": "c"},
follow_children=False)
self.assertEqual([("a", ("b",), {"c":"c"})], output)
def test_strace_callable_result(self):
def function():
return "foo"
result, strace_result = strace_detailed(function,[], {},
follow_children=False)
self.assertEqual("foo", result)
self.assertIsInstance(strace_result, StraceResult)
def test_strace_result_has_raw_log(self):
"""Checks that a reasonable raw strace log was found by strace."""
def function():
self.build_tree(['myfile'])
unused, result = strace_detailed(function, [], {},
follow_children=False)
self.assertContainsRe(result.raw_log, 'myfile')
|