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Viewing changes to bzrlib/tests/test_osutils.py

  • Committer: Andrew Bennetts
  • Date: 2011-03-24 00:13:10 UTC
  • mto: This revision was merged to the branch mainline in revision 5739.
  • Revision ID: andrew.bennetts@canonical.com-20110324001310-5w56qjom53j091r3
Minor English tweaks.

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bzrlib/tests/test_osutils.py
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# Copyright (C) 2005-2010 Canonical Ltd
 
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# Copyright (C) 2005-2011 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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import os
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import re
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import socket
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import stat
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import sys
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import time
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    file_utils,
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    test__walkdirs_win32,
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    )
 
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from bzrlib.tests.scenarios import load_tests_apply_scenarios
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class _UTF8DirReaderFeature(tests.Feature):
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    return scenarios
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def load_tests(basic_tests, module, loader):
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    suite = loader.suiteClass()
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    dir_reader_tests, remaining_tests = tests.split_suite_by_condition(
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        basic_tests, tests.condition_isinstance(TestDirReader))
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    tests.multiply_tests(dir_reader_tests, dir_reader_scenarios(), suite)
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    suite.addTest(remaining_tests)
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    return suite
 
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load_tests = load_tests_apply_scenarios
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class TestContainsWhitespace(tests.TestCase):
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        if sys.platform == 'win32':
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            raise tests.TestNotApplicable(
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                "readdir IOError not tested on win32")
 
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        self.requireFeature(features.not_running_as_root)
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        os.mkdir("test-unreadable")
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        os.chmod("test-unreadable", 0000)
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        # must chmod it back so that it can be removed
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        # rename the 1file to a latin-1 filename
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        os.rename("./1file", "\xe8file")
 
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        if "\xe8file" not in os.listdir("."):
 
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            self.skip("Lack filesystem that preserves arbitrary bytes")
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        self._save_platform_info()
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        win32utils.winver = None # Avoid the win32 detection code
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class TestDirReader(tests.TestCaseInTempDir):
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1732
 
 
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    scenarios = dir_reader_scenarios()
 
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    # Set by load_tests
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    _dir_reader_class = None
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    _native_to_unicode = None
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        self.assertIsInstance(concurrency, int)
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    def test_local_concurrency_environment_variable(self):
1903
 
        os.environ['BZR_CONCURRENCY'] = '2'
 
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        self.overrideEnv('BZR_CONCURRENCY', '2')
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        self.assertEqual(2, osutils.local_concurrency(use_cache=False))
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        os.environ['BZR_CONCURRENCY'] = '3'
 
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        self.overrideEnv('BZR_CONCURRENCY', '3')
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        self.assertEqual(3, osutils.local_concurrency(use_cache=False))
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        os.environ['BZR_CONCURRENCY'] = 'foo'
 
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        self.overrideEnv('BZR_CONCURRENCY', 'foo')
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        self.assertEqual(1, osutils.local_concurrency(use_cache=False))
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    def test_option_concurrency(self):
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        os.environ['BZR_CONCURRENCY'] = '1'
 
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        self.overrideEnv('BZR_CONCURRENCY', '1')
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        self.run_bzr('rocks --concurrency 42')
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        # Command line overrides envrionment variable
 
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        # Command line overrides environment variable
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        self.assertEquals('42', os.environ['BZR_CONCURRENCY'])
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        self.assertEquals(42, osutils.local_concurrency(use_cache=False))
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    def test_defaults_to_BZR_COLUMNS(self):
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        # BZR_COLUMNS is set by the test framework
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        self.assertNotEqual('12', os.environ['BZR_COLUMNS'])
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        os.environ['BZR_COLUMNS'] = '12'
 
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        self.overrideEnv('BZR_COLUMNS', '12')
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        self.assertEqual(12, osutils.terminal_width())
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    def test_BZR_COLUMNS_0_no_limit(self):
 
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        self.overrideEnv('BZR_COLUMNS', '0')
 
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        self.assertEqual(None, osutils.terminal_width())
 
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    def test_falls_back_to_COLUMNS(self):
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        del os.environ['BZR_COLUMNS']
 
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        self.overrideEnv('BZR_COLUMNS', None)
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        self.assertNotEqual('42', os.environ['COLUMNS'])
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        self.set_fake_tty()
1996
 
        os.environ['COLUMNS'] = '42'
 
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        self.overrideEnv('COLUMNS', '42')
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        self.assertEqual(42, osutils.terminal_width())
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    def test_tty_default_without_columns(self):
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        del os.environ['BZR_COLUMNS']
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        del os.environ['COLUMNS']
 
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        self.overrideEnv('BZR_COLUMNS', None)
 
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        self.overrideEnv('COLUMNS', None)
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        def terminal_size(w, h):
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            return 42, 42
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        self.assertEqual(42, osutils.terminal_width())
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    def test_non_tty_default_without_columns(self):
2014
 
        del os.environ['BZR_COLUMNS']
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        del os.environ['COLUMNS']
 
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        self.overrideEnv('BZR_COLUMNS', None)
 
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        self.overrideEnv('COLUMNS', None)
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        self.replace_stdout(None)
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        self.assertEqual(None, osutils.terminal_width())
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        else:
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            self.overrideAttr(termios, 'TIOCGWINSZ')
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            del termios.TIOCGWINSZ
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        del os.environ['BZR_COLUMNS']
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        del os.environ['COLUMNS']
 
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        self.overrideEnv('BZR_COLUMNS', None)
 
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        self.overrideEnv('COLUMNS', None)
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        # Whatever the result is, if we don't raise an exception, it's ok.
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        osutils.terminal_width()
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class TestGetuserUnicode(tests.TestCase):
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    def test_ascii_user(self):
2074
 
        osutils.set_or_unset_env('LOGNAME', 'jrandom')
 
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        self.overrideEnv('LOGNAME', 'jrandom')
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        self.assertEqual(u'jrandom', osutils.getuser_unicode())
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    def test_unicode_user(self):
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        ue = osutils.get_user_encoding()
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        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(
 
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                'Cannot find a unicode character that works in encoding %s'
 
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                % (osutils.get_user_encoding(),))
 
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        uni_username = u'jrandom' + uni_val
 
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        encoded_username = uni_username.encode(ue)
 
2089
        self.overrideEnv('LOGNAME', encoded_username)
 
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        self.assertEqual(uni_username, osutils.getuser_unicode())
 
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        self.overrideEnv('LOGNAME', u'jrandom\xb6'.encode(ue))
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        self.assertEqual(u'jrandom\xb6', osutils.getuser_unicode())
 
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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)