/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to bzrlib/tests/test_strace.py

  • Committer: John Arbash Meinel
  • Date: 2007-03-20 00:49:11 UTC
  • mto: This revision was merged to the branch mainline in revision 2366.
  • Revision ID: john@arbash-meinel.com-20070320004911-0qajqnddr3rf9r2e
Simplify the test even further....
Basically, if you have a file deleted as removed, and then you unversion its directory
it deletes all records in the dirblock, not realizing that some of them might
already be marked as removed.

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/test_strace.py
1
 
# Copyright (C) 2007 Canonical Ltd
2
 
#   Authors: Robert Collins <robert.collins@canonical.com>
3
 
#
4
 
# This program is free software; you can redistribute it and/or modify
5
 
# it under the terms of the GNU General Public License as published by
6
 
# the Free Software Foundation; either version 2 of the License, or
7
 
# (at your option) any later version.
8
 
#
9
 
# This program is distributed in the hope that it will be useful,
10
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
 
# GNU General Public License for more details.
13
 
#
14
 
# You should have received a copy of the GNU General Public License
15
 
# along with this program; if not, write to the Free Software
16
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
 
 
18
 
"""Tests for the strace-invoking support."""
19
 
 
20
 
import errno
21
 
import subprocess
22
 
import threading
23
 
 
24
 
from bzrlib import (
25
 
    tests,
26
 
    )
27
 
from bzrlib.strace import StraceFeature, strace_detailed, StraceResult
28
 
 
29
 
 
30
 
class TestStraceFeature(tests.TestCaseWithTransport):
31
 
 
32
 
    def test_strace_detection(self):
33
 
        """Strace is available if its runnable."""
34
 
        try:
35
 
            proc = subprocess.Popen(['strace'],
36
 
                stderr=subprocess.PIPE,
37
 
                stdout=subprocess.PIPE)
38
 
            proc.communicate()
39
 
            found_strace = True
40
 
        except OSError, e:
41
 
            if e.errno == errno.ENOENT:
42
 
                # strace is not installed
43
 
                found_strace = False
44
 
            else:
45
 
                raise
46
 
        self.assertEqual(found_strace, StraceFeature.available())
47
 
 
48
 
 
49
 
class TestStrace(tests.TestCaseWithTransport):
50
 
 
51
 
    _test_needs_features = [StraceFeature]
52
 
 
53
 
    def _check_threads(self):
54
 
        # For bug #226769, it was decided that the strace tests should not be
55
 
        # run when more than one thread is active. A lot of tests are currently
56
 
        # leaking threads for good or bad reasons, once they are fixed or
57
 
        # strace itself is fixed (bug #103133), we can get rid of the
58
 
        # restriction.
59
 
        active = threading.activeCount()
60
 
        if active > 1: # There is always the main thread at least
61
 
            raise tests.KnownFailure(
62
 
                '%d active threads, bug #103133 needs to be fixed.' % active)
63
 
 
64
 
    def test_strace_callable_is_called(self):
65
 
        self._check_threads()
66
 
 
67
 
        output = []
68
 
        def function(positional, *args, **kwargs):
69
 
            output.append((positional, args, kwargs))
70
 
        strace_detailed(function, ["a", "b"], {"c": "c"},
71
 
                        follow_children=False)
72
 
        self.assertEqual([("a", ("b",), {"c":"c"})], output)
73
 
 
74
 
    def test_strace_callable_result(self):
75
 
        self._check_threads()
76
 
 
77
 
        def function():
78
 
            return "foo"
79
 
        result, strace_result = strace_detailed(function,[], {},
80
 
                                                follow_children=False)
81
 
        self.assertEqual("foo", result)
82
 
        self.assertIsInstance(strace_result, StraceResult)
83
 
 
84
 
    def test_strace_result_has_raw_log(self):
85
 
        """Checks that a reasonable raw strace log was found by strace."""
86
 
        self._check_threads()
87
 
 
88
 
        def function():
89
 
            self.build_tree(['myfile'])
90
 
        unused, result = strace_detailed(function, [], {},
91
 
                                         follow_children=False)
92
 
        self.assertContainsRe(result.raw_log, 'myfile')