621 lines
24 KiB
Python
621 lines
24 KiB
Python
"Test posix functions"
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from test import test_support
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# Skip these tests if there is no posix module.
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posix = test_support.import_module('posix')
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import errno
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import sys
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import time
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import os
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import platform
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import pwd
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import shutil
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import stat
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import sys
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import tempfile
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import unittest
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import warnings
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_DUMMY_SYMLINK = os.path.join(tempfile.gettempdir(),
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test_support.TESTFN + '-dummy-symlink')
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warnings.filterwarnings('ignore', '.* potential security risk .*',
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RuntimeWarning)
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class PosixTester(unittest.TestCase):
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def setUp(self):
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# create empty file
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fp = open(test_support.TESTFN, 'w+')
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fp.close()
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self.teardown_files = [ test_support.TESTFN ]
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def tearDown(self):
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for teardown_file in self.teardown_files:
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os.unlink(teardown_file)
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def testNoArgFunctions(self):
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# test posix functions which take no arguments and have
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# no side-effects which we need to cleanup (e.g., fork, wait, abort)
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NO_ARG_FUNCTIONS = [ "ctermid", "getcwd", "getcwdu", "uname",
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"times", "getloadavg", "tmpnam",
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"getegid", "geteuid", "getgid", "getgroups",
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"getpid", "getpgrp", "getppid", "getuid",
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]
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with warnings.catch_warnings():
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warnings.filterwarnings("ignore", "", DeprecationWarning)
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for name in NO_ARG_FUNCTIONS:
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posix_func = getattr(posix, name, None)
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if posix_func is not None:
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posix_func()
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self.assertRaises(TypeError, posix_func, 1)
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@unittest.skipUnless(hasattr(posix, 'getresuid'),
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'test needs posix.getresuid()')
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def test_getresuid(self):
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user_ids = posix.getresuid()
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self.assertEqual(len(user_ids), 3)
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for val in user_ids:
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self.assertGreaterEqual(val, 0)
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@unittest.skipUnless(hasattr(posix, 'getresgid'),
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'test needs posix.getresgid()')
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def test_getresgid(self):
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group_ids = posix.getresgid()
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self.assertEqual(len(group_ids), 3)
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for val in group_ids:
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self.assertGreaterEqual(val, 0)
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@unittest.skipUnless(hasattr(posix, 'setresuid'),
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'test needs posix.setresuid()')
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def test_setresuid(self):
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current_user_ids = posix.getresuid()
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self.assertIsNone(posix.setresuid(*current_user_ids))
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# -1 means don't change that value.
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self.assertIsNone(posix.setresuid(-1, -1, -1))
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@unittest.skipUnless(hasattr(posix, 'setresuid'),
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'test needs posix.setresuid()')
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def test_setresuid_exception(self):
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# Don't do this test if someone is silly enough to run us as root.
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current_user_ids = posix.getresuid()
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if 0 not in current_user_ids:
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new_user_ids = (current_user_ids[0]+1, -1, -1)
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self.assertRaises(OSError, posix.setresuid, *new_user_ids)
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@unittest.skipUnless(hasattr(posix, 'setresgid'),
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'test needs posix.setresgid()')
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def test_setresgid(self):
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current_group_ids = posix.getresgid()
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self.assertIsNone(posix.setresgid(*current_group_ids))
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# -1 means don't change that value.
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self.assertIsNone(posix.setresgid(-1, -1, -1))
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@unittest.skipUnless(hasattr(posix, 'setresgid'),
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'test needs posix.setresgid()')
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def test_setresgid_exception(self):
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# Don't do this test if someone is silly enough to run us as root.
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current_group_ids = posix.getresgid()
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if 0 not in current_group_ids:
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new_group_ids = (current_group_ids[0]+1, -1, -1)
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self.assertRaises(OSError, posix.setresgid, *new_group_ids)
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@unittest.skipUnless(hasattr(posix, 'initgroups'),
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"test needs os.initgroups()")
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def test_initgroups(self):
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# It takes a string and an integer; check that it raises a TypeError
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# for other argument lists.
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self.assertRaises(TypeError, posix.initgroups)
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self.assertRaises(TypeError, posix.initgroups, None)
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self.assertRaises(TypeError, posix.initgroups, 3, "foo")
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self.assertRaises(TypeError, posix.initgroups, "foo", 3, object())
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# If a non-privileged user invokes it, it should fail with OSError
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# EPERM.
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if os.getuid() != 0:
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try:
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name = pwd.getpwuid(posix.getuid()).pw_name
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except KeyError:
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# the current UID may not have a pwd entry
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raise unittest.SkipTest("need a pwd entry")
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try:
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posix.initgroups(name, 13)
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except OSError as e:
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self.assertEqual(e.errno, errno.EPERM)
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else:
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self.fail("Expected OSError to be raised by initgroups")
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@unittest.skipUnless(hasattr(posix, 'statvfs'),
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'test needs posix.statvfs()')
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def test_statvfs(self):
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self.assertTrue(posix.statvfs(os.curdir))
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@unittest.skipUnless(hasattr(posix, 'fstatvfs'),
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'test needs posix.fstatvfs()')
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def test_fstatvfs(self):
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fp = open(test_support.TESTFN)
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try:
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self.assertTrue(posix.fstatvfs(fp.fileno()))
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finally:
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fp.close()
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@unittest.skipUnless(hasattr(posix, 'ftruncate'),
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'test needs posix.ftruncate()')
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def test_ftruncate(self):
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fp = open(test_support.TESTFN, 'w+')
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try:
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# we need to have some data to truncate
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fp.write('test')
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fp.flush()
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posix.ftruncate(fp.fileno(), 0)
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finally:
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fp.close()
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@unittest.skipUnless(hasattr(posix, 'dup'),
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'test needs posix.dup()')
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def test_dup(self):
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fp = open(test_support.TESTFN)
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try:
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fd = posix.dup(fp.fileno())
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self.assertIsInstance(fd, int)
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os.close(fd)
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finally:
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fp.close()
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@unittest.skipUnless(hasattr(posix, 'confstr'),
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'test needs posix.confstr()')
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def test_confstr(self):
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self.assertRaises(ValueError, posix.confstr, "CS_garbage")
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self.assertEqual(len(posix.confstr("CS_PATH")) > 0, True)
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@unittest.skipUnless(hasattr(posix, 'dup2'),
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'test needs posix.dup2()')
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def test_dup2(self):
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fp1 = open(test_support.TESTFN)
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fp2 = open(test_support.TESTFN)
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try:
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posix.dup2(fp1.fileno(), fp2.fileno())
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finally:
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fp1.close()
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fp2.close()
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def fdopen_helper(self, *args):
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fd = os.open(test_support.TESTFN, os.O_RDONLY)
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fp2 = posix.fdopen(fd, *args)
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fp2.close()
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@unittest.skipUnless(hasattr(posix, 'fdopen'),
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'test needs posix.fdopen()')
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def test_fdopen(self):
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self.fdopen_helper()
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self.fdopen_helper('r')
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self.fdopen_helper('r', 100)
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@unittest.skipUnless(hasattr(posix, 'fdopen'),
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'test needs posix.fdopen()')
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def test_fdopen_directory(self):
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try:
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fd = os.open('.', os.O_RDONLY)
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except OSError as e:
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self.assertEqual(e.errno, errno.EACCES)
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self.skipTest("system cannot open directories")
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with self.assertRaises(IOError) as cm:
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os.fdopen(fd, 'r')
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self.assertEqual(cm.exception.errno, errno.EISDIR)
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@unittest.skipUnless(hasattr(posix, 'fdopen') and
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not sys.platform.startswith("sunos"),
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'test needs posix.fdopen()')
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def test_fdopen_keeps_fd_open_on_errors(self):
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fd = os.open(test_support.TESTFN, os.O_RDONLY)
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self.assertRaises(OSError, posix.fdopen, fd, 'w')
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os.close(fd) # fd should not be closed.
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@unittest.skipUnless(hasattr(posix, 'O_EXLOCK'),
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'test needs posix.O_EXLOCK')
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def test_osexlock(self):
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fd = os.open(test_support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, test_support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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if hasattr(posix, "O_SHLOCK"):
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fd = os.open(test_support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, test_support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'O_SHLOCK'),
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'test needs posix.O_SHLOCK')
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def test_osshlock(self):
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fd1 = os.open(test_support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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fd2 = os.open(test_support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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os.close(fd2)
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os.close(fd1)
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if hasattr(posix, "O_EXLOCK"):
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fd = os.open(test_support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, test_support.TESTFN,
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os.O_RDONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'fstat'),
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'test needs posix.fstat()')
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def test_fstat(self):
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fp = open(test_support.TESTFN)
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try:
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self.assertTrue(posix.fstat(fp.fileno()))
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finally:
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fp.close()
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@unittest.skipUnless(hasattr(posix, 'stat'),
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'test needs posix.stat()')
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def test_stat(self):
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self.assertTrue(posix.stat(test_support.TESTFN))
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@unittest.skipUnless(hasattr(posix, 'stat'), 'test needs posix.stat()')
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@unittest.skipUnless(hasattr(posix, 'makedev'), 'test needs posix.makedev()')
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def test_makedev(self):
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st = posix.stat(test_support.TESTFN)
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dev = st.st_dev
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self.assertIsInstance(dev, (int, long))
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self.assertGreaterEqual(dev, 0)
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major = posix.major(dev)
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self.assertIsInstance(major, (int, long))
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self.assertGreaterEqual(major, 0)
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self.assertEqual(posix.major(int(dev)), major)
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self.assertEqual(posix.major(long(dev)), major)
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self.assertRaises(TypeError, posix.major, float(dev))
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self.assertRaises(TypeError, posix.major)
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self.assertRaises((ValueError, OverflowError), posix.major, -1)
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minor = posix.minor(dev)
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self.assertIsInstance(minor, (int, long))
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self.assertGreaterEqual(minor, 0)
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self.assertEqual(posix.minor(int(dev)), minor)
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self.assertEqual(posix.minor(long(dev)), minor)
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self.assertRaises(TypeError, posix.minor, float(dev))
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self.assertRaises(TypeError, posix.minor)
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self.assertRaises((ValueError, OverflowError), posix.minor, -1)
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self.assertEqual(posix.makedev(major, minor), dev)
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self.assertEqual(posix.makedev(int(major), int(minor)), dev)
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self.assertEqual(posix.makedev(long(major), long(minor)), dev)
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self.assertRaises(TypeError, posix.makedev, float(major), minor)
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self.assertRaises(TypeError, posix.makedev, major, float(minor))
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self.assertRaises(TypeError, posix.makedev, major)
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self.assertRaises(TypeError, posix.makedev)
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def _test_all_chown_common(self, chown_func, first_param, stat_func):
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"""Common code for chown, fchown and lchown tests."""
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def check_stat(uid, gid):
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if stat_func is not None:
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stat = stat_func(first_param)
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self.assertEqual(stat.st_uid, uid)
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self.assertEqual(stat.st_gid, gid)
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uid = os.getuid()
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gid = os.getgid()
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# test a successful chown call
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chown_func(first_param, uid, gid)
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check_stat(uid, gid)
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chown_func(first_param, -1, gid)
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check_stat(uid, gid)
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chown_func(first_param, uid, -1)
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check_stat(uid, gid)
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if uid == 0:
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# Try an amusingly large uid/gid to make sure we handle
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# large unsigned values. (chown lets you use any
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# uid/gid you like, even if they aren't defined.)
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#
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# This problem keeps coming up:
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# http://bugs.python.org/issue1747858
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# http://bugs.python.org/issue4591
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# http://bugs.python.org/issue15301
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# Hopefully the fix in 4591 fixes it for good!
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#
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# This part of the test only runs when run as root.
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# Only scary people run their tests as root.
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big_value = 2**31
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chown_func(first_param, big_value, big_value)
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check_stat(big_value, big_value)
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chown_func(first_param, -1, -1)
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check_stat(big_value, big_value)
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chown_func(first_param, uid, gid)
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check_stat(uid, gid)
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elif platform.system() in ('HP-UX', 'SunOS'):
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# HP-UX and Solaris can allow a non-root user to chown() to root
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# (issue #5113)
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raise unittest.SkipTest("Skipping because of non-standard chown() "
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"behavior")
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else:
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# non-root cannot chown to root, raises OSError
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self.assertRaises(OSError, chown_func, first_param, 0, 0)
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check_stat(uid, gid)
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self.assertRaises(OSError, chown_func, first_param, 0, -1)
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check_stat(uid, gid)
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if 0 not in os.getgroups():
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self.assertRaises(OSError, chown_func, first_param, -1, 0)
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check_stat(uid, gid)
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# test illegal types
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for t in str, float:
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self.assertRaises(TypeError, chown_func, first_param, t(uid), gid)
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check_stat(uid, gid)
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self.assertRaises(TypeError, chown_func, first_param, uid, t(gid))
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check_stat(uid, gid)
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@unittest.skipUnless(hasattr(posix, 'chown'), "test needs os.chown()")
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def test_chown(self):
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# raise an OSError if the file does not exist
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os.unlink(test_support.TESTFN)
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self.assertRaises(OSError, posix.chown, test_support.TESTFN, -1, -1)
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# re-create the file
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open(test_support.TESTFN, 'w').close()
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self._test_all_chown_common(posix.chown, test_support.TESTFN,
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getattr(posix, 'stat', None))
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@unittest.skipUnless(hasattr(posix, 'fchown'), "test needs os.fchown()")
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def test_fchown(self):
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os.unlink(test_support.TESTFN)
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# re-create the file
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test_file = open(test_support.TESTFN, 'w')
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try:
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fd = test_file.fileno()
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self._test_all_chown_common(posix.fchown, fd,
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getattr(posix, 'fstat', None))
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finally:
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test_file.close()
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@unittest.skipUnless(hasattr(posix, 'lchown'), "test needs os.lchown()")
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def test_lchown(self):
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os.unlink(test_support.TESTFN)
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# create a symlink
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os.symlink(_DUMMY_SYMLINK, test_support.TESTFN)
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self._test_all_chown_common(posix.lchown, test_support.TESTFN,
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getattr(posix, 'lstat', None))
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@unittest.skipUnless(hasattr(posix, 'chdir'), 'test needs posix.chdir()')
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def test_chdir(self):
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posix.chdir(os.curdir)
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self.assertRaises(OSError, posix.chdir, test_support.TESTFN)
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@unittest.skipUnless(hasattr(posix, 'lsdir'), 'test needs posix.lsdir()')
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def test_lsdir(self):
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self.assertIn(test_support.TESTFN, posix.lsdir(os.curdir))
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@unittest.skipUnless(hasattr(posix, 'access'), 'test needs posix.access()')
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def test_access(self):
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self.assertTrue(posix.access(test_support.TESTFN, os.R_OK))
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@unittest.skipUnless(hasattr(posix, 'umask'), 'test needs posix.umask()')
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def test_umask(self):
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old_mask = posix.umask(0)
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self.assertIsInstance(old_mask, int)
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posix.umask(old_mask)
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@unittest.skipUnless(hasattr(posix, 'strerror'),
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'test needs posix.strerror()')
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def test_strerror(self):
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self.assertTrue(posix.strerror(0))
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@unittest.skipUnless(hasattr(posix, 'pipe'), 'test needs posix.pipe()')
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def test_pipe(self):
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reader, writer = posix.pipe()
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os.close(reader)
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os.close(writer)
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@unittest.skipUnless(hasattr(posix, 'tempnam'),
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'test needs posix.tempnam()')
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def test_tempnam(self):
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with warnings.catch_warnings():
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warnings.filterwarnings("ignore", "tempnam", DeprecationWarning)
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self.assertTrue(posix.tempnam())
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self.assertTrue(posix.tempnam(os.curdir))
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self.assertTrue(posix.tempnam(os.curdir, 'blah'))
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@unittest.skipUnless(hasattr(posix, 'tmpfile'),
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'test needs posix.tmpfile()')
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def test_tmpfile(self):
|
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with warnings.catch_warnings():
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warnings.filterwarnings("ignore", "tmpfile", DeprecationWarning)
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fp = posix.tmpfile()
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fp.close()
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@unittest.skipUnless(hasattr(posix, 'utime'), 'test needs posix.utime()')
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def test_utime(self):
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now = time.time()
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posix.utime(test_support.TESTFN, None)
|
|
self.assertRaises(TypeError, posix.utime, test_support.TESTFN, (None, None))
|
|
self.assertRaises(TypeError, posix.utime, test_support.TESTFN, (now, None))
|
|
self.assertRaises(TypeError, posix.utime, test_support.TESTFN, (None, now))
|
|
posix.utime(test_support.TESTFN, (int(now), int(now)))
|
|
posix.utime(test_support.TESTFN, (now, now))
|
|
|
|
def _test_chflags_regular_file(self, chflags_func, target_file):
|
|
st = os.stat(target_file)
|
|
self.assertTrue(hasattr(st, 'st_flags'))
|
|
|
|
# ZFS returns EOPNOTSUPP when attempting to set flag UF_IMMUTABLE.
|
|
try:
|
|
chflags_func(target_file, st.st_flags | stat.UF_IMMUTABLE)
|
|
except OSError as err:
|
|
if err.errno != errno.EOPNOTSUPP:
|
|
raise
|
|
msg = 'chflag UF_IMMUTABLE not supported by underlying fs'
|
|
self.skipTest(msg)
|
|
|
|
try:
|
|
new_st = os.stat(target_file)
|
|
self.assertEqual(st.st_flags | stat.UF_IMMUTABLE, new_st.st_flags)
|
|
try:
|
|
fd = open(target_file, 'w+')
|
|
except IOError as e:
|
|
self.assertEqual(e.errno, errno.EPERM)
|
|
finally:
|
|
posix.chflags(target_file, st.st_flags)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'chflags'), 'test needs os.chflags()')
|
|
def test_chflags(self):
|
|
self._test_chflags_regular_file(posix.chflags, test_support.TESTFN)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchflags'), 'test needs os.lchflags()')
|
|
def test_lchflags_regular_file(self):
|
|
self._test_chflags_regular_file(posix.lchflags, test_support.TESTFN)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchflags'), 'test needs os.lchflags()')
|
|
def test_lchflags_symlink(self):
|
|
testfn_st = os.stat(test_support.TESTFN)
|
|
|
|
self.assertTrue(hasattr(testfn_st, 'st_flags'))
|
|
|
|
os.symlink(test_support.TESTFN, _DUMMY_SYMLINK)
|
|
self.teardown_files.append(_DUMMY_SYMLINK)
|
|
dummy_symlink_st = os.lstat(_DUMMY_SYMLINK)
|
|
|
|
# ZFS returns EOPNOTSUPP when attempting to set flag UF_IMMUTABLE.
|
|
try:
|
|
posix.lchflags(_DUMMY_SYMLINK,
|
|
dummy_symlink_st.st_flags | stat.UF_IMMUTABLE)
|
|
except OSError as err:
|
|
if err.errno != errno.EOPNOTSUPP:
|
|
raise
|
|
msg = 'chflag UF_IMMUTABLE not supported by underlying fs'
|
|
self.skipTest(msg)
|
|
|
|
try:
|
|
new_testfn_st = os.stat(test_support.TESTFN)
|
|
new_dummy_symlink_st = os.lstat(_DUMMY_SYMLINK)
|
|
|
|
self.assertEqual(testfn_st.st_flags, new_testfn_st.st_flags)
|
|
self.assertEqual(dummy_symlink_st.st_flags | stat.UF_IMMUTABLE,
|
|
new_dummy_symlink_st.st_flags)
|
|
finally:
|
|
posix.lchflags(_DUMMY_SYMLINK, dummy_symlink_st.st_flags)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'getcwd'),
|
|
'test needs posix.getcwd()')
|
|
def test_getcwd_long_pathnames(self):
|
|
dirname = 'getcwd-test-directory-0123456789abcdef-01234567890abcdef'
|
|
curdir = os.getcwd()
|
|
base_path = os.path.abspath(test_support.TESTFN) + '.getcwd'
|
|
|
|
try:
|
|
os.mkdir(base_path)
|
|
os.chdir(base_path)
|
|
except:
|
|
self.skipTest("cannot create directory for testing")
|
|
|
|
try:
|
|
def _create_and_do_getcwd(dirname, current_path_length = 0):
|
|
try:
|
|
os.mkdir(dirname)
|
|
except:
|
|
self.skipTest("mkdir cannot create directory sufficiently "
|
|
"deep for getcwd test")
|
|
|
|
os.chdir(dirname)
|
|
try:
|
|
os.getcwd()
|
|
if current_path_length < 4099:
|
|
_create_and_do_getcwd(dirname, current_path_length + len(dirname) + 1)
|
|
except OSError as e:
|
|
expected_errno = errno.ENAMETOOLONG
|
|
# The following platforms have quirky getcwd()
|
|
# behaviour -- see issue 9185 and 15765 for
|
|
# more information.
|
|
quirky_platform = (
|
|
'sunos' in sys.platform or
|
|
'netbsd' in sys.platform or
|
|
'openbsd' in sys.platform
|
|
)
|
|
if quirky_platform:
|
|
expected_errno = errno.ERANGE
|
|
self.assertEqual(e.errno, expected_errno)
|
|
finally:
|
|
os.chdir('..')
|
|
os.rmdir(dirname)
|
|
|
|
_create_and_do_getcwd(dirname)
|
|
|
|
finally:
|
|
os.chdir(curdir)
|
|
shutil.rmtree(base_path)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getegid'), "test needs os.getegid()")
|
|
def test_getgroups(self):
|
|
with os.popen('id -G 2>/dev/null') as idg:
|
|
groups = idg.read().strip()
|
|
ret = idg.close()
|
|
|
|
if ret != None or not groups:
|
|
raise unittest.SkipTest("need working 'id -G'")
|
|
|
|
# Issues 16698: OS X ABIs prior to 10.6 have limits on getgroups()
|
|
if sys.platform == 'darwin':
|
|
import sysconfig
|
|
dt = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') or '10.0'
|
|
if tuple(int(n) for n in dt.split('.')[0:2]) < (10, 6):
|
|
raise unittest.SkipTest("getgroups(2) is broken prior to 10.6")
|
|
|
|
# 'id -G' and 'os.getgroups()' should return the same
|
|
# groups, ignoring order and duplicates.
|
|
# #10822 - it is implementation defined whether posix.getgroups()
|
|
# includes the effective gid so we include it anyway, since id -G does
|
|
self.assertEqual(
|
|
set([int(x) for x in groups.split()]),
|
|
set(posix.getgroups() + [posix.getegid()]))
|
|
|
|
class PosixGroupsTester(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
if posix.getuid() != 0:
|
|
raise unittest.SkipTest("not enough privileges")
|
|
if not hasattr(posix, 'getgroups'):
|
|
raise unittest.SkipTest("need posix.getgroups")
|
|
if sys.platform == 'darwin':
|
|
raise unittest.SkipTest("getgroups(2) is broken on OSX")
|
|
self.saved_groups = posix.getgroups()
|
|
|
|
def tearDown(self):
|
|
if hasattr(posix, 'setgroups'):
|
|
posix.setgroups(self.saved_groups)
|
|
elif hasattr(posix, 'initgroups'):
|
|
name = pwd.getpwuid(posix.getuid()).pw_name
|
|
posix.initgroups(name, self.saved_groups[0])
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'initgroups'),
|
|
'test needs posix.initgroups()')
|
|
def test_initgroups(self):
|
|
# find missing group
|
|
|
|
g = max(self.saved_groups or [0]) + 1
|
|
name = pwd.getpwuid(posix.getuid()).pw_name
|
|
posix.initgroups(name, g)
|
|
self.assertIn(g, posix.getgroups())
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'setgroups'),
|
|
'test needs posix.setgroups()')
|
|
def test_setgroups(self):
|
|
for groups in [[0], range(16)]:
|
|
posix.setgroups(groups)
|
|
self.assertListEqual(groups, posix.getgroups())
|
|
|
|
|
|
def test_main():
|
|
test_support.run_unittest(PosixTester, PosixGroupsTester)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|