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bzrlib/tests/test_osutils.py
1
 
# Copyright (C) 2005-2010 Canonical Ltd
 
1
# Copyright (C) 2005-2011 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
21
21
import os
22
22
import re
23
23
import socket
24
 
import stat
25
24
import sys
26
25
import time
27
26
 
28
27
from bzrlib import (
29
28
    errors,
 
29
    lazy_regex,
30
30
    osutils,
 
31
    symbol_versioning,
31
32
    tests,
32
33
    trace,
33
34
    win32utils,
37
38
    file_utils,
38
39
    test__walkdirs_win32,
39
40
    )
 
41
from bzrlib.tests.scenarios import load_tests_apply_scenarios
40
42
 
41
43
 
42
44
class _UTF8DirReaderFeature(tests.Feature):
95
97
    return scenarios
96
98
 
97
99
 
98
 
def load_tests(basic_tests, module, loader):
99
 
    suite = loader.suiteClass()
100
 
    dir_reader_tests, remaining_tests = tests.split_suite_by_condition(
101
 
        basic_tests, tests.condition_isinstance(TestDirReader))
102
 
    tests.multiply_tests(dir_reader_tests, dir_reader_scenarios(), suite)
103
 
    suite.addTest(remaining_tests)
104
 
    return suite
 
100
load_tests = load_tests_apply_scenarios
105
101
 
106
102
 
107
103
class TestContainsWhitespace(tests.TestCase):
861
857
        self.assertEqual('//HOST/path', osutils._win98_abspath('//HOST/path'))
862
858
        # relative path
863
859
        cwd = osutils.getcwd().rstrip('/')
864
 
        drive = osutils._nt_splitdrive(cwd)[0]
 
860
        drive = osutils.ntpath.splitdrive(cwd)[0]
865
861
        self.assertEqual(cwd+'/path', osutils._win98_abspath('path'))
866
862
        self.assertEqual(drive+'/path', osutils._win98_abspath('/path'))
867
863
        # unicode path
1070
1066
        if sys.platform == 'win32':
1071
1067
            raise tests.TestNotApplicable(
1072
1068
                "readdir IOError not tested on win32")
 
1069
        self.requireFeature(features.not_running_as_root)
1073
1070
        os.mkdir("test-unreadable")
1074
1071
        os.chmod("test-unreadable", 0000)
1075
1072
        # must chmod it back so that it can be removed
1083
1080
        # Ensure the message contains the file name
1084
1081
        self.assertContainsRe(str(e), "\./test-unreadable")
1085
1082
 
 
1083
 
 
1084
    def test_walkdirs_encoding_error(self):
 
1085
        # <https://bugs.launchpad.net/bzr/+bug/488519>
 
1086
        # walkdirs didn't raise a useful message when the filenames
 
1087
        # are not using the filesystem's encoding
 
1088
 
 
1089
        # require a bytestring based filesystem
 
1090
        self.requireFeature(tests.ByteStringNamedFilesystem)
 
1091
 
 
1092
        tree = [
 
1093
            '.bzr',
 
1094
            '0file',
 
1095
            '1dir/',
 
1096
            '1dir/0file',
 
1097
            '1dir/1dir/',
 
1098
            '1file'
 
1099
            ]
 
1100
 
 
1101
        self.build_tree(tree)
 
1102
 
 
1103
        # rename the 1file to a latin-1 filename
 
1104
        os.rename("./1file", "\xe8file")
 
1105
        if "\xe8file" not in os.listdir("."):
 
1106
            self.skip("Lack filesystem that preserves arbitrary bytes")
 
1107
 
 
1108
        self._save_platform_info()
 
1109
        win32utils.winver = None # Avoid the win32 detection code
 
1110
        osutils._fs_enc = 'UTF-8'
 
1111
 
 
1112
        # this should raise on error
 
1113
        def attempt():
 
1114
            for dirdetail, dirblock in osutils.walkdirs('.'):
 
1115
                pass
 
1116
 
 
1117
        self.assertRaises(errors.BadFilenameEncoding, attempt)
 
1118
 
1086
1119
    def test__walkdirs_utf8(self):
1087
1120
        tree = [
1088
1121
            '.bzr',
1671
1704
 
1672
1705
class TestReCompile(tests.TestCase):
1673
1706
 
 
1707
    def _deprecated_re_compile_checked(self, *args, **kwargs):
 
1708
        return self.applyDeprecated(symbol_versioning.deprecated_in((2, 2, 0)),
 
1709
            osutils.re_compile_checked, *args, **kwargs)
 
1710
 
1674
1711
    def test_re_compile_checked(self):
1675
 
        r = osutils.re_compile_checked(r'A*', re.IGNORECASE)
 
1712
        r = self._deprecated_re_compile_checked(r'A*', re.IGNORECASE)
1676
1713
        self.assertTrue(r.match('aaaa'))
1677
1714
        self.assertTrue(r.match('aAaA'))
1678
1715
 
1679
1716
    def test_re_compile_checked_error(self):
1680
1717
        # like https://bugs.launchpad.net/bzr/+bug/251352
 
1718
 
 
1719
        # Due to possible test isolation error, re.compile is not lazy at
 
1720
        # this point. We re-install lazy compile.
 
1721
        lazy_regex.install_lazy_compile()
1681
1722
        err = self.assertRaises(
1682
1723
            errors.BzrCommandError,
1683
 
            osutils.re_compile_checked, '*', re.IGNORECASE, 'test case')
 
1724
            self._deprecated_re_compile_checked, '*', re.IGNORECASE, 'test case')
1684
1725
        self.assertEqual(
1685
 
            "Invalid regular expression in test case: '*': "
1686
 
            "nothing to repeat",
 
1726
            'Invalid regular expression in test case: '
 
1727
            '"*" nothing to repeat',
1687
1728
            str(err))
1688
1729
 
1689
1730
 
1690
1731
class TestDirReader(tests.TestCaseInTempDir):
1691
1732
 
 
1733
    scenarios = dir_reader_scenarios()
 
1734
 
1692
1735
    # Set by load_tests
1693
1736
    _dir_reader_class = None
1694
1737
    _native_to_unicode = None
1856
1899
        self.assertIsInstance(concurrency, int)
1857
1900
 
1858
1901
    def test_local_concurrency_environment_variable(self):
1859
 
        os.environ['BZR_CONCURRENCY'] = '2'
 
1902
        self.overrideEnv('BZR_CONCURRENCY', '2')
1860
1903
        self.assertEqual(2, osutils.local_concurrency(use_cache=False))
1861
 
        os.environ['BZR_CONCURRENCY'] = '3'
 
1904
        self.overrideEnv('BZR_CONCURRENCY', '3')
1862
1905
        self.assertEqual(3, osutils.local_concurrency(use_cache=False))
1863
 
        os.environ['BZR_CONCURRENCY'] = 'foo'
 
1906
        self.overrideEnv('BZR_CONCURRENCY', 'foo')
1864
1907
        self.assertEqual(1, osutils.local_concurrency(use_cache=False))
1865
1908
 
1866
1909
    def test_option_concurrency(self):
1867
 
        os.environ['BZR_CONCURRENCY'] = '1'
 
1910
        self.overrideEnv('BZR_CONCURRENCY', '1')
1868
1911
        self.run_bzr('rocks --concurrency 42')
1869
 
        # Command line overrides envrionment variable
 
1912
        # Command line overrides environment variable
1870
1913
        self.assertEquals('42', os.environ['BZR_CONCURRENCY'])
1871
1914
        self.assertEquals(42, osutils.local_concurrency(use_cache=False))
1872
1915
 
1921
1964
    def restore_osutils_globals(self):
1922
1965
        osutils._terminal_size_state = self._orig_terminal_size_state
1923
1966
        osutils._first_terminal_size = self._orig_first_terminal_size
1924
 
        
 
1967
 
1925
1968
    def replace_stdout(self, new):
1926
1969
        self.overrideAttr(sys, 'stdout', new)
1927
1970
 
1942
1985
    def test_defaults_to_BZR_COLUMNS(self):
1943
1986
        # BZR_COLUMNS is set by the test framework
1944
1987
        self.assertNotEqual('12', os.environ['BZR_COLUMNS'])
1945
 
        os.environ['BZR_COLUMNS'] = '12'
 
1988
        self.overrideEnv('BZR_COLUMNS', '12')
1946
1989
        self.assertEqual(12, osutils.terminal_width())
1947
1990
 
 
1991
    def test_BZR_COLUMNS_0_no_limit(self):
 
1992
        self.overrideEnv('BZR_COLUMNS', '0')
 
1993
        self.assertEqual(None, osutils.terminal_width())
 
1994
 
1948
1995
    def test_falls_back_to_COLUMNS(self):
1949
 
        del os.environ['BZR_COLUMNS']
 
1996
        self.overrideEnv('BZR_COLUMNS', None)
1950
1997
        self.assertNotEqual('42', os.environ['COLUMNS'])
1951
1998
        self.set_fake_tty()
1952
 
        os.environ['COLUMNS'] = '42'
 
1999
        self.overrideEnv('COLUMNS', '42')
1953
2000
        self.assertEqual(42, osutils.terminal_width())
1954
2001
 
1955
2002
    def test_tty_default_without_columns(self):
1956
 
        del os.environ['BZR_COLUMNS']
1957
 
        del os.environ['COLUMNS']
 
2003
        self.overrideEnv('BZR_COLUMNS', None)
 
2004
        self.overrideEnv('COLUMNS', None)
1958
2005
 
1959
2006
        def terminal_size(w, h):
1960
2007
            return 42, 42
1967
2014
        self.assertEqual(42, osutils.terminal_width())
1968
2015
 
1969
2016
    def test_non_tty_default_without_columns(self):
1970
 
        del os.environ['BZR_COLUMNS']
1971
 
        del os.environ['COLUMNS']
 
2017
        self.overrideEnv('BZR_COLUMNS', None)
 
2018
        self.overrideEnv('COLUMNS', None)
1972
2019
        self.replace_stdout(None)
1973
2020
        self.assertEqual(None, osutils.terminal_width())
1974
2021
 
1984
2031
        else:
1985
2032
            self.overrideAttr(termios, 'TIOCGWINSZ')
1986
2033
            del termios.TIOCGWINSZ
1987
 
        del os.environ['BZR_COLUMNS']
1988
 
        del os.environ['COLUMNS']
 
2034
        self.overrideEnv('BZR_COLUMNS', None)
 
2035
        self.overrideEnv('COLUMNS', None)
1989
2036
        # Whatever the result is, if we don't raise an exception, it's ok.
1990
2037
        osutils.terminal_width()
1991
2038
 
2027
2074
class TestGetuserUnicode(tests.TestCase):
2028
2075
 
2029
2076
    def test_ascii_user(self):
2030
 
        osutils.set_or_unset_env('LOGNAME', 'jrandom')
 
2077
        self.overrideEnv('LOGNAME', 'jrandom')
2031
2078
        self.assertEqual(u'jrandom', osutils.getuser_unicode())
2032
2079
 
2033
2080
    def test_unicode_user(self):
2034
2081
        ue = osutils.get_user_encoding()
2035
 
        osutils.set_or_unset_env('LOGNAME', u'jrandom\xb6'.encode(ue))
 
2082
        uni_val, env_val = tests.probe_unicode_in_user_encoding()
 
2083
        if uni_val is None:
 
2084
            raise tests.TestSkipped(
 
2085
                'Cannot find a unicode character that works in encoding %s'
 
2086
                % (osutils.get_user_encoding(),))
 
2087
        uni_username = u'jrandom' + uni_val
 
2088
        encoded_username = uni_username.encode(ue)
 
2089
        self.overrideEnv('LOGNAME', encoded_username)
 
2090
        self.assertEqual(uni_username, osutils.getuser_unicode())
 
2091
        self.overrideEnv('LOGNAME', u'jrandom\xb6'.encode(ue))
2036
2092
        self.assertEqual(u'jrandom\xb6', osutils.getuser_unicode())
 
2093
 
 
2094
class TestBackupNames(tests.TestCase):
 
2095
 
 
2096
    def setUp(self):
 
2097
        super(TestBackupNames, self).setUp()
 
2098
        self.backups = []
 
2099
 
 
2100
    def backup_exists(self, name):
 
2101
        return name in self.backups
 
2102
 
 
2103
    def available_backup_name(self, name):
 
2104
        backup_name = osutils.available_backup_name(name, self.backup_exists)
 
2105
        self.backups.append(backup_name)
 
2106
        return backup_name
 
2107
 
 
2108
    def assertBackupName(self, expected, name):
 
2109
        self.assertEqual(expected, self.available_backup_name(name))
 
2110
 
 
2111
    def test_empty(self):
 
2112
        self.assertBackupName('file.~1~', 'file')
 
2113
 
 
2114
    def test_existing(self):
 
2115
        self.available_backup_name('file')
 
2116
        self.available_backup_name('file')
 
2117
        self.assertBackupName('file.~3~', 'file')
 
2118
        # Empty slots are found, this is not a strict requirement and may be
 
2119
        # revisited if we test against all implementations.
 
2120
        self.backups.remove('file.~2~')
 
2121
        self.assertBackupName('file.~2~', 'file')
 
2122
 
 
2123
 
 
2124
class TestFindExecutableInPath(tests.TestCase):
 
2125
 
 
2126
    def test_windows(self):
 
2127
        if sys.platform != 'win32':
 
2128
            raise tests.TestSkipped('test requires win32')
 
2129
        self.assertTrue(osutils.find_executable_on_path('explorer') is not None)
 
2130
        self.assertTrue(
 
2131
            osutils.find_executable_on_path('explorer.exe') is not None)
 
2132
        self.assertTrue(
 
2133
            osutils.find_executable_on_path('EXPLORER.EXE') is not None)
 
2134
        self.assertTrue(
 
2135
            osutils.find_executable_on_path('THIS SHOULD NOT EXIST') is None)
 
2136
        self.assertTrue(osutils.find_executable_on_path('file.txt') is None)
 
2137
 
 
2138
    def test_other(self):
 
2139
        if sys.platform == 'win32':
 
2140
            raise tests.TestSkipped('test requires non-win32')
 
2141
        self.assertTrue(osutils.find_executable_on_path('sh') is not None)
 
2142
        self.assertTrue(
 
2143
            osutils.find_executable_on_path('THIS SHOULD NOT EXIST') is None)