← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/features.py

  • Committer: Robert Collins
  • Date: 2007-04-19 02:27:44 UTC
  • mto: This revision was merged to the branch mainline in revision 2426.
  • Revision ID: robertc@robertcollins.net-20070419022744-pfdqz42kp1wizh43
``make docs`` now creates a man page at ``man1/bzr.1`` fixing bug 107388.
(Robert Collins)

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/features.py
1
 
# Copyright (C) 2009, 2010, 2011 Canonical Ltd
2
 
#
3
 
# This program is free software; you can redistribute it and/or modify
4
 
# it under the terms of the GNU General Public License as published by
5
 
# the Free Software Foundation; either version 2 of the License, or
6
 
# (at your option) any later version.
7
 
#
8
 
# This program is distributed in the hope that it will be useful,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
 
 
17
 
"""A collection of commonly used 'Features' which bzrlib uses to skip tests."""
18
 
 
19
 
import os
20
 
import stat
21
 
 
22
 
from bzrlib import (
23
 
    osutils,
24
 
    tests,
25
 
    )
26
 
 
27
 
 
28
 
class _NotRunningAsRoot(tests.Feature):
29
 
 
30
 
    def _probe(self):
31
 
        try:
32
 
            uid = os.getuid()
33
 
        except AttributeError:
34
 
            # If there is no uid, chances are there is no root either
35
 
            return True
36
 
        return uid != 0
37
 
 
38
 
    def feature_name(self):
39
 
        return 'Not running as root'
40
 
 
41
 
 
42
 
not_running_as_root = _NotRunningAsRoot()
43
 
 
44
 
apport = tests.ModuleAvailableFeature('apport')
45
 
meliae = tests.ModuleAvailableFeature('meliae')
46
 
paramiko = tests.ModuleAvailableFeature('paramiko')
47
 
pycurl = tests.ModuleAvailableFeature('pycurl')
48
 
pywintypes = tests.ModuleAvailableFeature('pywintypes')
49
 
sphinx = tests.ModuleAvailableFeature('sphinx')
50
 
subunit = tests.ModuleAvailableFeature('subunit')
51
 
 
52
 
 
53
 
class _BackslashDirSeparatorFeature(tests.Feature):
54
 
 
55
 
    def _probe(self):
56
 
        try:
57
 
            os.lstat(os.getcwd() + '\\')
58
 
        except OSError:
59
 
            return False
60
 
        else:
61
 
            return True
62
 
 
63
 
    def feature_name(self):
64
 
        return "Filesystem treats '\\' as a directory separator."
65
 
 
66
 
backslashdir_feature = _BackslashDirSeparatorFeature()
67
 
 
68
 
 
69
 
class _PosixPermissionsFeature(tests.Feature):
70
 
 
71
 
    def _probe(self):
72
 
        def has_perms():
73
 
            # create temporary file and check if specified perms are maintained.
74
 
            import tempfile
75
 
 
76
 
            write_perms = stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
77
 
            f = tempfile.mkstemp(prefix='bzr_perms_chk_')
78
 
            fd, name = f
79
 
            os.close(fd)
80
 
            os.chmod(name, write_perms)
81
 
 
82
 
            read_perms = os.stat(name).st_mode & 0777
83
 
            os.unlink(name)
84
 
            return (write_perms == read_perms)
85
 
 
86
 
        return (os.name == 'posix') and has_perms()
87
 
 
88
 
    def feature_name(self):
89
 
        return 'POSIX permissions support'
90
 
 
91
 
 
92
 
posix_permissions_feature = _PosixPermissionsFeature()
93
 
 
94
 
 
95
 
class _ChownFeature(tests.Feature):
96
 
    """os.chown is supported"""
97
 
 
98
 
    def _probe(self):
99
 
        return os.name == 'posix' and hasattr(os, 'chown')
100
 
 
101
 
chown_feature = _ChownFeature()
102
 
 
103
 
 
104
 
class ExecutableFeature(tests.Feature):
105
 
    """Feature testing whether an executable of a given name is on the PATH."""
106
 
 
107
 
    def __init__(self, name):
108
 
        super(ExecutableFeature, self).__init__()
109
 
        self.name = name
110
 
        self._path = None
111
 
 
112
 
    @property
113
 
    def path(self):
114
 
        # This is a property, so accessing path ensures _probe was called
115
 
        self.available()
116
 
        return self._path
117
 
 
118
 
    def _probe(self):
119
 
        self._path = osutils.find_executable_on_path(self.name)
120
 
        return self._path is not None
121
 
 
122
 
    def feature_name(self):
123
 
        return '%s executable' % self.name
124
 
 
125
 
 
126
 
bash_feature = ExecutableFeature('bash')
127
 
sed_feature = ExecutableFeature('sed')
128
 
diff_feature = ExecutableFeature('diff')