← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/test_atomicfile.py

  • Committer: Alexander Belchenko
  • Date: 2006-07-30 16:43:12 UTC
  • mto: (1711.2.111 jam-integration)
  • mto: This revision was merged to the branch mainline in revision 1906.
  • Revision ID: bialix@ukr.net-20060730164312-b025fd3ff0cee59e
rename  gpl.txt => COPYING.txt

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/test_atomicfile.py
1
 
# Copyright (C) 2006 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
 
"""Basic tests for AtomicFile"""
18
 
 
19
 
import os
20
 
import stat
21
 
import sys
22
 
 
23
 
from bzrlib import (
24
 
    atomicfile,
25
 
    errors,
26
 
    osutils,
27
 
    symbol_versioning,
28
 
    )
29
 
from bzrlib.tests import TestCaseInTempDir, TestSkipped
30
 
 
31
 
 
32
 
class TestAtomicFile(TestCaseInTempDir):
33
 
 
34
 
    def test_commit(self):
35
 
        f = atomicfile.AtomicFile('test')
36
 
        self.failIfExists('test')
37
 
        f.write('foo\n')
38
 
        f.commit()
39
 
 
40
 
        self.assertEqual(['test'], os.listdir('.'))
41
 
        self.check_file_contents('test', 'foo\n')
42
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.commit)
43
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.abort)
44
 
        # close is re-entrant safe
45
 
        f.close()
46
 
 
47
 
    def test_abort(self):
48
 
        f = atomicfile.AtomicFile('test')
49
 
        f.write('foo\n')
50
 
        f.abort()
51
 
        self.assertEqual([], os.listdir('.'))
52
 
 
53
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.abort)
54
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.commit)
55
 
 
56
 
        # close is re-entrant safe
57
 
        f.close()
58
 
 
59
 
    def test_close(self):
60
 
        f = atomicfile.AtomicFile('test')
61
 
        f.write('foo\n')
62
 
        # close on an open file is an abort
63
 
        f.close()
64
 
        self.assertEqual([], os.listdir('.'))
65
 
 
66
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.abort)
67
 
        self.assertRaises(errors.AtomicFileAlreadyClosed, f.commit)
68
 
 
69
 
        # close is re-entrant safe
70
 
        f.close()
71
 
 
72
 
    def test_text_mode(self):
73
 
        f = atomicfile.AtomicFile('test', mode='wt')
74
 
        f.write('foo\n')
75
 
        f.commit()
76
 
 
77
 
        contents = open('test', 'rb').read()
78
 
        if sys.platform == 'win32':
79
 
            self.assertEqual('foo\r\n', contents)
80
 
        else:
81
 
            self.assertEqual('foo\n', contents)
82
 
 
83
 
    def can_sys_preserve_mode(self):
84
 
        # PLATFORM DEFICIENCY/ TestSkipped
85
 
        return sys.platform not in ('win32',)
86
 
 
87
 
    def _test_mode(self, mode):
88
 
        if not self.can_sys_preserve_mode():
89
 
            raise TestSkipped("This test cannot be run on your platform")
90
 
        f = atomicfile.AtomicFile('test', mode='wb', new_mode=mode)
91
 
        f.write('foo\n')
92
 
        f.commit()
93
 
        st = os.lstat('test')
94
 
        self.assertEqualMode(mode, stat.S_IMODE(st.st_mode))
95
 
 
96
 
    def test_mode_0666(self):
97
 
        self._test_mode(0666)
98
 
 
99
 
    def test_mode_0664(self):
100
 
        self._test_mode(0664)
101
 
 
102
 
    def test_mode_0660(self):
103
 
        self._test_mode(0660)
104
 
 
105
 
    def test_mode_0660(self):
106
 
        self._test_mode(0660)
107
 
 
108
 
    def test_mode_0640(self):
109
 
        self._test_mode(0640)
110
 
 
111
 
    def test_mode_0600(self):
112
 
        self._test_mode(0600)
113
 
 
114
 
    def test_mode_0400(self):
115
 
        self._test_mode(0400)
116
 
        # Make it read-write again so cleanup doesn't complain
117
 
        os.chmod('test', 0600)
118
 
 
119
 
    def test_no_mode(self):
120
 
        # The default file permissions should be based on umask
121
 
        umask = osutils.get_umask()
122
 
        f = atomicfile.AtomicFile('test', mode='wb')
123
 
        f.write('foo\n')
124
 
        f.commit()
125
 
        st = os.lstat('test')
126
 
        self.assertEqualMode(0666 & ~umask, stat.S_IMODE(st.st_mode))
127
 
 
128
 
    def test_closed(self):
129
 
        local_warnings = []
130
 
        def capture_warnings(msg, cls, stacklevel=None):
131
 
            self.assertEqual(cls, DeprecationWarning)
132
 
            local_warnings.append(msg)
133
 
 
134
 
        method = symbol_versioning.warn
135
 
        try:
136
 
            symbol_versioning.set_warning_method(capture_warnings)
137
 
            f = atomicfile.AtomicFile('test', mode='wb')
138
 
            self.assertEqual(False, f.closed)
139
 
            f.abort()
140
 
            self.assertEqual(True, f.closed)
141
 
 
142
 
            f = atomicfile.AtomicFile('test', mode='wb')
143
 
            f.close()
144
 
            self.assertEqual(True, f.closed)
145
 
 
146
 
            f = atomicfile.AtomicFile('test', mode='wb')
147
 
            f.commit()
148
 
            self.assertEqual(True, f.closed)
149
 
        finally:
150
 
            symbol_versioning.set_warning_method(method)
151
 
 
152
 
        txt = 'AtomicFile.closed deprecated in bzr 0.10'
153
 
        self.assertEqual([txt]*4, local_warnings)