1079 lines
43 KiB
Python
1079 lines
43 KiB
Python
"Test posix functions"
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from test import support
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# Skip these tests if there is no posix module.
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posix = 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 fcntl
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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 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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support.TESTFN + '-dummy-symlink')
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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(support.TESTFN, 'w+')
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fp.close()
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self.teardown_files = [ support.TESTFN ]
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self._warnings_manager = support.check_warnings()
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self._warnings_manager.__enter__()
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warnings.filterwarnings('ignore', '.* potential security risk .*',
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RuntimeWarning)
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def tearDown(self):
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for teardown_file in self.teardown_files:
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support.unlink(teardown_file)
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self._warnings_manager.__exit__(None, None, None)
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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", "getcwdb", "uname",
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"times", "getloadavg",
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"getegid", "geteuid", "getgid", "getgroups",
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"getpid", "getpgrp", "getppid", "getuid", "sync",
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]
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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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if hasattr(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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if hasattr(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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if hasattr(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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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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if hasattr(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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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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def test_statvfs(self):
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if hasattr(posix, 'statvfs'):
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self.assertTrue(posix.statvfs(os.curdir))
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def test_fstatvfs(self):
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if hasattr(posix, 'fstatvfs'):
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fp = open(support.TESTFN)
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try:
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self.assertTrue(posix.fstatvfs(fp.fileno()))
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self.assertTrue(posix.statvfs(fp.fileno()))
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finally:
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fp.close()
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def test_ftruncate(self):
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if hasattr(posix, 'ftruncate'):
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fp = open(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, 'truncate'), "test needs posix.truncate()")
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def test_truncate(self):
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with open(support.TESTFN, 'w') as fp:
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fp.write('test')
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fp.flush()
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posix.truncate(support.TESTFN, 0)
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@unittest.skipUnless(getattr(os, 'execve', None) in os.supports_fd, "test needs execve() to support the fd parameter")
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@unittest.skipUnless(hasattr(os, 'fork'), "test needs os.fork()")
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@unittest.skipUnless(hasattr(os, 'waitpid'), "test needs os.waitpid()")
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def test_fexecve(self):
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fp = os.open(sys.executable, os.O_RDONLY)
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try:
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pid = os.fork()
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if pid == 0:
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os.chdir(os.path.split(sys.executable)[0])
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posix.execve(fp, [sys.executable, '-c', 'pass'], os.environ)
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else:
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self.assertEqual(os.waitpid(pid, 0), (pid, 0))
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finally:
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os.close(fp)
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@unittest.skipUnless(hasattr(posix, 'waitid'), "test needs posix.waitid()")
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@unittest.skipUnless(hasattr(os, 'fork'), "test needs os.fork()")
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def test_waitid(self):
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pid = os.fork()
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if pid == 0:
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os.chdir(os.path.split(sys.executable)[0])
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posix.execve(sys.executable, [sys.executable, '-c', 'pass'], os.environ)
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else:
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res = posix.waitid(posix.P_PID, pid, posix.WEXITED)
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self.assertEqual(pid, res.si_pid)
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@unittest.skipUnless(hasattr(posix, 'lockf'), "test needs posix.lockf()")
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def test_lockf(self):
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fd = os.open(support.TESTFN, os.O_WRONLY | os.O_CREAT)
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try:
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os.write(fd, b'test')
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os.lseek(fd, 0, os.SEEK_SET)
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posix.lockf(fd, posix.F_LOCK, 4)
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# section is locked
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posix.lockf(fd, posix.F_ULOCK, 4)
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finally:
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'pread'), "test needs posix.pread()")
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def test_pread(self):
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fd = os.open(support.TESTFN, os.O_RDWR | os.O_CREAT)
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try:
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os.write(fd, b'test')
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os.lseek(fd, 0, os.SEEK_SET)
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self.assertEqual(b'es', posix.pread(fd, 2, 1))
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# the first pread() shouldn't disturb the file offset
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self.assertEqual(b'te', posix.read(fd, 2))
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finally:
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'pwrite'), "test needs posix.pwrite()")
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def test_pwrite(self):
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fd = os.open(support.TESTFN, os.O_RDWR | os.O_CREAT)
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try:
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os.write(fd, b'test')
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os.lseek(fd, 0, os.SEEK_SET)
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posix.pwrite(fd, b'xx', 1)
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self.assertEqual(b'txxt', posix.read(fd, 4))
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finally:
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'posix_fallocate'),
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"test needs posix.posix_fallocate()")
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def test_posix_fallocate(self):
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fd = os.open(support.TESTFN, os.O_WRONLY | os.O_CREAT)
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try:
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posix.posix_fallocate(fd, 0, 10)
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except OSError as inst:
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# issue10812, ZFS doesn't appear to support posix_fallocate,
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# so skip Solaris-based since they are likely to have ZFS.
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if inst.errno != errno.EINVAL or not sys.platform.startswith("sunos"):
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raise
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finally:
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'posix_fadvise'),
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"test needs posix.posix_fadvise()")
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def test_posix_fadvise(self):
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fd = os.open(support.TESTFN, os.O_RDONLY)
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try:
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posix.posix_fadvise(fd, 0, 0, posix.POSIX_FADV_WILLNEED)
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finally:
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os.close(fd)
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@unittest.skipUnless(os.utime in os.supports_fd, "test needs fd support in os.utime")
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def test_utime_with_fd(self):
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now = time.time()
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fd = os.open(support.TESTFN, os.O_RDONLY)
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try:
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posix.utime(fd)
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posix.utime(fd, None)
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self.assertRaises(TypeError, posix.utime, fd, (None, None))
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self.assertRaises(TypeError, posix.utime, fd, (now, None))
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self.assertRaises(TypeError, posix.utime, fd, (None, now))
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posix.utime(fd, (int(now), int(now)))
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posix.utime(fd, (now, now))
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self.assertRaises(ValueError, posix.utime, fd, (now, now), ns=(now, now))
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self.assertRaises(ValueError, posix.utime, fd, (now, 0), ns=(None, None))
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self.assertRaises(ValueError, posix.utime, fd, (None, None), ns=(now, 0))
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posix.utime(fd, (int(now), int((now - int(now)) * 1e9)))
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posix.utime(fd, ns=(int(now), int((now - int(now)) * 1e9)))
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finally:
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os.close(fd)
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@unittest.skipUnless(os.utime in os.supports_follow_symlinks, "test needs follow_symlinks support in os.utime")
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def test_utime_nofollow_symlinks(self):
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now = time.time()
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posix.utime(support.TESTFN, None, follow_symlinks=False)
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, None), follow_symlinks=False)
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, None), follow_symlinks=False)
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, now), follow_symlinks=False)
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posix.utime(support.TESTFN, (int(now), int(now)), follow_symlinks=False)
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posix.utime(support.TESTFN, (now, now), follow_symlinks=False)
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posix.utime(support.TESTFN, follow_symlinks=False)
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@unittest.skipUnless(hasattr(posix, 'writev'), "test needs posix.writev()")
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def test_writev(self):
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fd = os.open(support.TESTFN, os.O_RDWR | os.O_CREAT)
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try:
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os.writev(fd, (b'test1', b'tt2', b't3'))
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os.lseek(fd, 0, os.SEEK_SET)
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self.assertEqual(b'test1tt2t3', posix.read(fd, 10))
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finally:
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os.close(fd)
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@unittest.skipUnless(hasattr(posix, 'readv'), "test needs posix.readv()")
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def test_readv(self):
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fd = os.open(support.TESTFN, os.O_RDWR | os.O_CREAT)
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try:
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os.write(fd, b'test1tt2t3')
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os.lseek(fd, 0, os.SEEK_SET)
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buf = [bytearray(i) for i in [5, 3, 2]]
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self.assertEqual(posix.readv(fd, buf), 10)
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self.assertEqual([b'test1', b'tt2', b't3'], [bytes(i) for i in buf])
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finally:
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os.close(fd)
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def test_dup(self):
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if hasattr(posix, 'dup'):
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fp = open(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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def test_confstr(self):
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if hasattr(posix, 'confstr'):
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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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def test_dup2(self):
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if hasattr(posix, 'dup2'):
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fp1 = open(support.TESTFN)
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fp2 = open(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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@unittest.skipUnless(hasattr(os, 'O_CLOEXEC'), "needs os.O_CLOEXEC")
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@support.requires_linux_version(2, 6, 23)
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def test_oscloexec(self):
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fd = os.open(support.TESTFN, os.O_RDONLY|os.O_CLOEXEC)
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self.addCleanup(os.close, fd)
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self.assertTrue(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC)
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def test_osexlock(self):
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if hasattr(posix, "O_EXLOCK"):
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fd = os.open(support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, 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(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, 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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def test_osshlock(self):
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if hasattr(posix, "O_SHLOCK"):
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fd1 = os.open(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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fd2 = os.open(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(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, 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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def test_fstat(self):
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if hasattr(posix, 'fstat'):
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fp = open(support.TESTFN)
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try:
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self.assertTrue(posix.fstat(fp.fileno()))
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self.assertTrue(posix.stat(fp.fileno()))
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finally:
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fp.close()
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def test_stat(self):
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if hasattr(posix, 'stat'):
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self.assertTrue(posix.stat(support.TESTFN))
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@unittest.skipUnless(hasattr(posix, 'mkfifo'), "don't have mkfifo()")
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def test_mkfifo(self):
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support.unlink(support.TESTFN)
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posix.mkfifo(support.TESTFN, stat.S_IRUSR | stat.S_IWUSR)
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self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
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|
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@unittest.skipUnless(hasattr(posix, 'mknod') and hasattr(stat, 'S_IFIFO'),
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"don't have mknod()/S_IFIFO")
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def test_mknod(self):
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# Test using mknod() to create a FIFO (the only use specified
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# by POSIX).
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support.unlink(support.TESTFN)
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mode = stat.S_IFIFO | stat.S_IRUSR | stat.S_IWUSR
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try:
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posix.mknod(support.TESTFN, mode, 0)
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except OSError as e:
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# Some old systems don't allow unprivileged users to use
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# mknod(), or only support creating device nodes.
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self.assertIn(e.errno, (errno.EPERM, errno.EINVAL))
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else:
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self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
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|
|
def _test_all_chown_common(self, chown_func, first_param):
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"""Common code for chown, fchown and lchown tests."""
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# test a successful chown call
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chown_func(first_param, os.getuid(), os.getgid())
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|
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if os.getuid() == 0:
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try:
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# Many linux distros have a nfsnobody user as MAX_UID-2
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# that makes a good test case for signedness issues.
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# http://bugs.python.org/issue1747858
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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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ent = pwd.getpwnam('nfsnobody')
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chown_func(first_param, ent.pw_uid, ent.pw_gid)
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except KeyError:
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pass
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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,
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first_param, 0, 0)
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|
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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(support.TESTFN)
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self.assertRaises(OSError, posix.chown, support.TESTFN, -1, -1)
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|
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# re-create the file
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support.create_empty_file(support.TESTFN)
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self._test_all_chown_common(posix.chown, support.TESTFN)
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|
|
@unittest.skipUnless(hasattr(posix, 'fchown'), "test needs os.fchown()")
|
|
def test_fchown(self):
|
|
os.unlink(support.TESTFN)
|
|
|
|
# re-create the file
|
|
test_file = open(support.TESTFN, 'w')
|
|
try:
|
|
fd = test_file.fileno()
|
|
self._test_all_chown_common(posix.fchown, fd)
|
|
finally:
|
|
test_file.close()
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchown'), "test needs os.lchown()")
|
|
def test_lchown(self):
|
|
os.unlink(support.TESTFN)
|
|
# create a symlink
|
|
os.symlink(_DUMMY_SYMLINK, support.TESTFN)
|
|
self._test_all_chown_common(posix.lchown, support.TESTFN)
|
|
|
|
def test_chdir(self):
|
|
if hasattr(posix, 'chdir'):
|
|
posix.chdir(os.curdir)
|
|
self.assertRaises(OSError, posix.chdir, support.TESTFN)
|
|
|
|
def test_listdir(self):
|
|
if hasattr(posix, 'listdir'):
|
|
self.assertTrue(support.TESTFN in posix.listdir(os.curdir))
|
|
|
|
def test_listdir_default(self):
|
|
# When listdir is called without argument, it's the same as listdir(os.curdir)
|
|
if hasattr(posix, 'listdir'):
|
|
self.assertTrue(support.TESTFN in posix.listdir())
|
|
|
|
@unittest.skipUnless(os.listdir in os.supports_fd, "test needs fd support for os.listdir()")
|
|
def test_flistdir(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
self.addCleanup(posix.close, f)
|
|
self.assertEqual(
|
|
sorted(posix.listdir('.')),
|
|
sorted(posix.listdir(f))
|
|
)
|
|
# Check that the fd offset was reset (issue #13739)
|
|
self.assertEqual(
|
|
sorted(posix.listdir('.')),
|
|
sorted(posix.listdir(f))
|
|
)
|
|
|
|
def test_access(self):
|
|
if hasattr(posix, 'access'):
|
|
self.assertTrue(posix.access(support.TESTFN, os.R_OK))
|
|
|
|
def test_umask(self):
|
|
if hasattr(posix, 'umask'):
|
|
old_mask = posix.umask(0)
|
|
self.assertIsInstance(old_mask, int)
|
|
posix.umask(old_mask)
|
|
|
|
def test_strerror(self):
|
|
if hasattr(posix, 'strerror'):
|
|
self.assertTrue(posix.strerror(0))
|
|
|
|
def test_pipe(self):
|
|
if hasattr(posix, 'pipe'):
|
|
reader, writer = posix.pipe()
|
|
os.close(reader)
|
|
os.close(writer)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'pipe2'), "test needs os.pipe2()")
|
|
@support.requires_linux_version(2, 6, 27)
|
|
def test_pipe2(self):
|
|
self.assertRaises(TypeError, os.pipe2, 'DEADBEEF')
|
|
self.assertRaises(TypeError, os.pipe2, 0, 0)
|
|
|
|
# try calling with flags = 0, like os.pipe()
|
|
r, w = os.pipe2(0)
|
|
os.close(r)
|
|
os.close(w)
|
|
|
|
# test flags
|
|
r, w = os.pipe2(os.O_CLOEXEC|os.O_NONBLOCK)
|
|
self.addCleanup(os.close, r)
|
|
self.addCleanup(os.close, w)
|
|
self.assertTrue(fcntl.fcntl(r, fcntl.F_GETFD) & fcntl.FD_CLOEXEC)
|
|
self.assertTrue(fcntl.fcntl(w, fcntl.F_GETFD) & fcntl.FD_CLOEXEC)
|
|
# try reading from an empty pipe: this should fail, not block
|
|
self.assertRaises(OSError, os.read, r, 1)
|
|
# try a write big enough to fill-up the pipe: this should either
|
|
# fail or perform a partial write, not block
|
|
try:
|
|
os.write(w, b'x' * support.PIPE_MAX_SIZE)
|
|
except OSError:
|
|
pass
|
|
|
|
def test_utime(self):
|
|
if hasattr(posix, 'utime'):
|
|
now = time.time()
|
|
posix.utime(support.TESTFN, None)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, None))
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, None))
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, now))
|
|
posix.utime(support.TESTFN, (int(now), int(now)))
|
|
posix.utime(support.TESTFN, (now, now))
|
|
|
|
def _test_chflags_regular_file(self, chflags_func, target_file, **kwargs):
|
|
st = os.stat(target_file)
|
|
self.assertTrue(hasattr(st, 'st_flags'))
|
|
chflags_func(target_file, st.st_flags | stat.UF_IMMUTABLE, **kwargs)
|
|
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, support.TESTFN)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchflags'), 'test needs os.lchflags()')
|
|
def test_lchflags_regular_file(self):
|
|
self._test_chflags_regular_file(posix.lchflags, support.TESTFN)
|
|
self._test_chflags_regular_file(posix.chflags, support.TESTFN, follow_symlinks=False)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchflags'), 'test needs os.lchflags()')
|
|
def test_lchflags_symlink(self):
|
|
testfn_st = os.stat(support.TESTFN)
|
|
|
|
self.assertTrue(hasattr(testfn_st, 'st_flags'))
|
|
|
|
os.symlink(support.TESTFN, _DUMMY_SYMLINK)
|
|
self.teardown_files.append(_DUMMY_SYMLINK)
|
|
dummy_symlink_st = os.lstat(_DUMMY_SYMLINK)
|
|
|
|
def chflags_nofollow(path, flags):
|
|
return posix.chflags(path, flags, follow_symlinks=False)
|
|
|
|
for fn in (posix.lchflags, chflags_nofollow):
|
|
fn(_DUMMY_SYMLINK,
|
|
dummy_symlink_st.st_flags | stat.UF_IMMUTABLE)
|
|
try:
|
|
new_testfn_st = os.stat(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:
|
|
fn(_DUMMY_SYMLINK, dummy_symlink_st.st_flags)
|
|
|
|
def test_environ(self):
|
|
if os.name == "nt":
|
|
item_type = str
|
|
else:
|
|
item_type = bytes
|
|
for k, v in posix.environ.items():
|
|
self.assertEqual(type(k), item_type)
|
|
self.assertEqual(type(v), item_type)
|
|
|
|
def test_getcwd_long_pathnames(self):
|
|
if hasattr(posix, 'getcwd'):
|
|
dirname = 'getcwd-test-directory-0123456789abcdef-01234567890abcdef'
|
|
curdir = os.getcwd()
|
|
base_path = os.path.abspath(support.TESTFN) + '.getcwd'
|
|
|
|
try:
|
|
os.mkdir(base_path)
|
|
os.chdir(base_path)
|
|
except:
|
|
# Just returning nothing instead of the SkipTest exception,
|
|
# because the test results in Error in that case.
|
|
# Is that ok?
|
|
# raise unittest.SkipTest("cannot create directory for testing")
|
|
return
|
|
|
|
def _create_and_do_getcwd(dirname, current_path_length = 0):
|
|
try:
|
|
os.mkdir(dirname)
|
|
except:
|
|
raise unittest.SkipTest("mkdir cannot create directory sufficiently deep for getcwd test")
|
|
|
|
os.chdir(dirname)
|
|
try:
|
|
os.getcwd()
|
|
if current_path_length < 1027:
|
|
_create_and_do_getcwd(dirname, current_path_length + len(dirname) + 1)
|
|
finally:
|
|
os.chdir('..')
|
|
os.rmdir(dirname)
|
|
|
|
_create_and_do_getcwd(dirname)
|
|
|
|
finally:
|
|
os.chdir(curdir)
|
|
support.rmtree(base_path)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'getgrouplist'), "test needs posix.getgrouplist()")
|
|
@unittest.skipUnless(hasattr(pwd, 'getpwuid'), "test needs pwd.getpwuid()")
|
|
@unittest.skipUnless(hasattr(os, 'getuid'), "test needs os.getuid()")
|
|
def test_getgrouplist(self):
|
|
with os.popen('id -G') as idg:
|
|
groups = idg.read().strip()
|
|
ret = idg.close()
|
|
|
|
if ret != None or not groups:
|
|
raise unittest.SkipTest("need working 'id -G'")
|
|
|
|
self.assertEqual(
|
|
set([int(x) for x in groups.split()]),
|
|
set(posix.getgrouplist(pwd.getpwuid(os.getuid())[0],
|
|
pwd.getpwuid(os.getuid())[3])))
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getegid'), "test needs os.getegid()")
|
|
def test_getgroups(self):
|
|
with os.popen('id -G') as idg:
|
|
groups = idg.read().strip()
|
|
ret = idg.close()
|
|
|
|
if ret != None or not groups:
|
|
raise unittest.SkipTest("need working 'id -G'")
|
|
|
|
# '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()]))
|
|
|
|
# tests for the posix *at functions follow
|
|
|
|
@unittest.skipUnless(os.access in os.supports_dir_fd, "test needs dir_fd support for os.access()")
|
|
def test_access_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
self.assertTrue(posix.access(support.TESTFN, os.R_OK, dir_fd=f))
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.chmod in os.supports_dir_fd, "test needs dir_fd support in os.chmod()")
|
|
def test_chmod_dir_fd(self):
|
|
os.chmod(support.TESTFN, stat.S_IRUSR)
|
|
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.chmod(support.TESTFN, stat.S_IRUSR | stat.S_IWUSR, dir_fd=f)
|
|
|
|
s = posix.stat(support.TESTFN)
|
|
self.assertEqual(s[0] & stat.S_IRWXU, stat.S_IRUSR | stat.S_IWUSR)
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.chown in os.supports_dir_fd, "test needs dir_fd support in os.chown()")
|
|
def test_chown_dir_fd(self):
|
|
support.unlink(support.TESTFN)
|
|
support.create_empty_file(support.TESTFN)
|
|
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.chown(support.TESTFN, os.getuid(), os.getgid(), dir_fd=f)
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.stat in os.supports_dir_fd, "test needs dir_fd support in os.stat()")
|
|
def test_stat_dir_fd(self):
|
|
support.unlink(support.TESTFN)
|
|
with open(support.TESTFN, 'w') as outfile:
|
|
outfile.write("testline\n")
|
|
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
s1 = posix.stat(support.TESTFN)
|
|
s2 = posix.stat(support.TESTFN, dir_fd=f)
|
|
self.assertEqual(s1, s2)
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.utime in os.supports_dir_fd, "test needs dir_fd support in os.utime()")
|
|
def test_utime_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
now = time.time()
|
|
posix.utime(support.TESTFN, None, dir_fd=f)
|
|
posix.utime(support.TESTFN, dir_fd=f)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, now, dir_fd=f)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, None), dir_fd=f)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, None), dir_fd=f)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, now), dir_fd=f)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, "x"), dir_fd=f)
|
|
posix.utime(support.TESTFN, (int(now), int(now)), dir_fd=f)
|
|
posix.utime(support.TESTFN, (now, now), dir_fd=f)
|
|
posix.utime(support.TESTFN,
|
|
(int(now), int((now - int(now)) * 1e9)), dir_fd=f)
|
|
posix.utime(support.TESTFN, dir_fd=f,
|
|
times=(int(now), int((now - int(now)) * 1e9)))
|
|
|
|
# try dir_fd and follow_symlinks together
|
|
if os.utime in os.supports_follow_symlinks:
|
|
try:
|
|
posix.utime(support.TESTFN, follow_symlinks=False, dir_fd=f)
|
|
except RuntimeError:
|
|
# whoops! using both together not supported on this platform.
|
|
pass
|
|
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.link in os.supports_dir_fd, "test needs dir_fd support in os.link()")
|
|
def test_link_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.link(support.TESTFN, support.TESTFN + 'link', src_dir_fd=f, dst_dir_fd=f)
|
|
# should have same inodes
|
|
self.assertEqual(posix.stat(support.TESTFN)[1],
|
|
posix.stat(support.TESTFN + 'link')[1])
|
|
finally:
|
|
posix.close(f)
|
|
support.unlink(support.TESTFN + 'link')
|
|
|
|
@unittest.skipUnless(os.mkdir in os.supports_dir_fd, "test needs dir_fd support in os.mkdir()")
|
|
def test_mkdir_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.mkdir(support.TESTFN + 'dir', dir_fd=f)
|
|
posix.stat(support.TESTFN + 'dir') # should not raise exception
|
|
finally:
|
|
posix.close(f)
|
|
support.rmtree(support.TESTFN + 'dir')
|
|
|
|
@unittest.skipUnless((os.mknod in os.supports_dir_fd) and hasattr(stat, 'S_IFIFO'),
|
|
"test requires both stat.S_IFIFO and dir_fd support for os.mknod()")
|
|
def test_mknod_dir_fd(self):
|
|
# Test using mknodat() to create a FIFO (the only use specified
|
|
# by POSIX).
|
|
support.unlink(support.TESTFN)
|
|
mode = stat.S_IFIFO | stat.S_IRUSR | stat.S_IWUSR
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.mknod(support.TESTFN, mode, 0, dir_fd=f)
|
|
except OSError as e:
|
|
# Some old systems don't allow unprivileged users to use
|
|
# mknod(), or only support creating device nodes.
|
|
self.assertIn(e.errno, (errno.EPERM, errno.EINVAL))
|
|
else:
|
|
self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.open in os.supports_dir_fd, "test needs dir_fd support in os.open()")
|
|
def test_open_dir_fd(self):
|
|
support.unlink(support.TESTFN)
|
|
with open(support.TESTFN, 'w') as outfile:
|
|
outfile.write("testline\n")
|
|
a = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
b = posix.open(support.TESTFN, posix.O_RDONLY, dir_fd=a)
|
|
try:
|
|
res = posix.read(b, 9).decode(encoding="utf-8")
|
|
self.assertEqual("testline\n", res)
|
|
finally:
|
|
posix.close(a)
|
|
posix.close(b)
|
|
|
|
@unittest.skipUnless(os.readlink in os.supports_dir_fd, "test needs dir_fd support in os.readlink()")
|
|
def test_readlink_dir_fd(self):
|
|
os.symlink(support.TESTFN, support.TESTFN + 'link')
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
self.assertEqual(posix.readlink(support.TESTFN + 'link'),
|
|
posix.readlink(support.TESTFN + 'link', dir_fd=f))
|
|
finally:
|
|
support.unlink(support.TESTFN + 'link')
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.rename in os.supports_dir_fd, "test needs dir_fd support in os.rename()")
|
|
def test_rename_dir_fd(self):
|
|
support.unlink(support.TESTFN)
|
|
support.create_empty_file(support.TESTFN + 'ren')
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.rename(support.TESTFN + 'ren', support.TESTFN, src_dir_fd=f, dst_dir_fd=f)
|
|
except:
|
|
posix.rename(support.TESTFN + 'ren', support.TESTFN)
|
|
raise
|
|
else:
|
|
posix.stat(support.TESTFN) # should not throw exception
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.symlink in os.supports_dir_fd, "test needs dir_fd support in os.symlink()")
|
|
def test_symlink_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.symlink(support.TESTFN, support.TESTFN + 'link', dir_fd=f)
|
|
self.assertEqual(posix.readlink(support.TESTFN + 'link'), support.TESTFN)
|
|
finally:
|
|
posix.close(f)
|
|
support.unlink(support.TESTFN + 'link')
|
|
|
|
@unittest.skipUnless(os.unlink in os.supports_dir_fd, "test needs dir_fd support in os.unlink()")
|
|
def test_unlink_dir_fd(self):
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
support.create_empty_file(support.TESTFN + 'del')
|
|
posix.stat(support.TESTFN + 'del') # should not throw exception
|
|
try:
|
|
posix.unlink(support.TESTFN + 'del', dir_fd=f)
|
|
except:
|
|
support.unlink(support.TESTFN + 'del')
|
|
raise
|
|
else:
|
|
self.assertRaises(OSError, posix.stat, support.TESTFN + 'link')
|
|
finally:
|
|
posix.close(f)
|
|
|
|
@unittest.skipUnless(os.mkfifo in os.supports_dir_fd, "test needs dir_fd support in os.mkfifo()")
|
|
def test_mkfifo_dir_fd(self):
|
|
support.unlink(support.TESTFN)
|
|
f = posix.open(posix.getcwd(), posix.O_RDONLY)
|
|
try:
|
|
posix.mkfifo(support.TESTFN, stat.S_IRUSR | stat.S_IWUSR, dir_fd=f)
|
|
self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
|
|
finally:
|
|
posix.close(f)
|
|
|
|
requires_sched_h = unittest.skipUnless(hasattr(posix, 'sched_yield'),
|
|
"don't have scheduling support")
|
|
requires_sched_affinity = unittest.skipUnless(hasattr(posix, 'cpu_set'),
|
|
"don't have sched affinity support")
|
|
|
|
@requires_sched_h
|
|
def test_sched_yield(self):
|
|
# This has no error conditions (at least on Linux).
|
|
posix.sched_yield()
|
|
|
|
@requires_sched_h
|
|
@unittest.skipUnless(hasattr(posix, 'sched_get_priority_max'),
|
|
"requires sched_get_priority_max()")
|
|
def test_sched_priority(self):
|
|
# Round-robin usually has interesting priorities.
|
|
pol = posix.SCHED_RR
|
|
lo = posix.sched_get_priority_min(pol)
|
|
hi = posix.sched_get_priority_max(pol)
|
|
self.assertIsInstance(lo, int)
|
|
self.assertIsInstance(hi, int)
|
|
self.assertGreaterEqual(hi, lo)
|
|
# OSX evidently just returns 15 without checking the argument.
|
|
if sys.platform != "darwin":
|
|
self.assertRaises(OSError, posix.sched_get_priority_min, -23)
|
|
self.assertRaises(OSError, posix.sched_get_priority_max, -23)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'sched_setscheduler'), "can't change scheduler")
|
|
def test_get_and_set_scheduler_and_param(self):
|
|
possible_schedulers = [sched for name, sched in posix.__dict__.items()
|
|
if name.startswith("SCHED_")]
|
|
mine = posix.sched_getscheduler(0)
|
|
self.assertIn(mine, possible_schedulers)
|
|
try:
|
|
parent = posix.sched_getscheduler(os.getppid())
|
|
except OSError as e:
|
|
if e.errno != errno.EPERM:
|
|
raise
|
|
else:
|
|
self.assertIn(parent, possible_schedulers)
|
|
self.assertRaises(OSError, posix.sched_getscheduler, -1)
|
|
self.assertRaises(OSError, posix.sched_getparam, -1)
|
|
param = posix.sched_getparam(0)
|
|
self.assertIsInstance(param.sched_priority, int)
|
|
try:
|
|
posix.sched_setscheduler(0, mine, param)
|
|
except OSError as e:
|
|
if e.errno != errno.EPERM:
|
|
raise
|
|
|
|
# POSIX states that calling sched_setparam() on a process with a
|
|
# scheduling policy other than SCHED_FIFO or SCHED_RR is
|
|
# implementation-defined: FreeBSD returns EINVAL.
|
|
if not sys.platform.startswith('freebsd'):
|
|
posix.sched_setparam(0, param)
|
|
self.assertRaises(OSError, posix.sched_setparam, -1, param)
|
|
|
|
self.assertRaises(OSError, posix.sched_setscheduler, -1, mine, param)
|
|
self.assertRaises(TypeError, posix.sched_setscheduler, 0, mine, None)
|
|
self.assertRaises(TypeError, posix.sched_setparam, 0, 43)
|
|
param = posix.sched_param(None)
|
|
self.assertRaises(TypeError, posix.sched_setparam, 0, param)
|
|
large = 214748364700
|
|
param = posix.sched_param(large)
|
|
self.assertRaises(OverflowError, posix.sched_setparam, 0, param)
|
|
param = posix.sched_param(sched_priority=-large)
|
|
self.assertRaises(OverflowError, posix.sched_setparam, 0, param)
|
|
|
|
@unittest.skipUnless(hasattr(posix, "sched_rr_get_interval"), "no function")
|
|
def test_sched_rr_get_interval(self):
|
|
try:
|
|
interval = posix.sched_rr_get_interval(0)
|
|
except OSError as e:
|
|
# This likely means that sched_rr_get_interval is only valid for
|
|
# processes with the SCHED_RR scheduler in effect.
|
|
if e.errno != errno.EINVAL:
|
|
raise
|
|
self.skipTest("only works on SCHED_RR processes")
|
|
self.assertIsInstance(interval, float)
|
|
# Reasonable constraints, I think.
|
|
self.assertGreaterEqual(interval, 0.)
|
|
self.assertLess(interval, 1.)
|
|
|
|
@requires_sched_affinity
|
|
def test_sched_affinity(self):
|
|
mask = posix.sched_getaffinity(0, 1024)
|
|
self.assertGreaterEqual(mask.count(), 1)
|
|
self.assertIsInstance(mask, posix.cpu_set)
|
|
self.assertRaises(OSError, posix.sched_getaffinity, -1, 1024)
|
|
empty = posix.cpu_set(10)
|
|
posix.sched_setaffinity(0, mask)
|
|
self.assertRaises(OSError, posix.sched_setaffinity, 0, empty)
|
|
self.assertRaises(OSError, posix.sched_setaffinity, -1, mask)
|
|
|
|
@requires_sched_affinity
|
|
def test_cpu_set_basic(self):
|
|
s = posix.cpu_set(10)
|
|
self.assertEqual(len(s), 10)
|
|
self.assertEqual(s.count(), 0)
|
|
s.set(0)
|
|
s.set(9)
|
|
self.assertTrue(s.isset(0))
|
|
self.assertTrue(s.isset(9))
|
|
self.assertFalse(s.isset(5))
|
|
self.assertEqual(s.count(), 2)
|
|
s.clear(0)
|
|
self.assertFalse(s.isset(0))
|
|
self.assertEqual(s.count(), 1)
|
|
s.zero()
|
|
self.assertFalse(s.isset(0))
|
|
self.assertFalse(s.isset(9))
|
|
self.assertEqual(s.count(), 0)
|
|
self.assertRaises(ValueError, s.set, -1)
|
|
self.assertRaises(ValueError, s.set, 10)
|
|
self.assertRaises(ValueError, s.clear, -1)
|
|
self.assertRaises(ValueError, s.clear, 10)
|
|
self.assertRaises(ValueError, s.isset, -1)
|
|
self.assertRaises(ValueError, s.isset, 10)
|
|
|
|
@requires_sched_affinity
|
|
def test_cpu_set_cmp(self):
|
|
self.assertNotEqual(posix.cpu_set(11), posix.cpu_set(12))
|
|
l = posix.cpu_set(10)
|
|
r = posix.cpu_set(10)
|
|
self.assertEqual(l, r)
|
|
l.set(1)
|
|
self.assertNotEqual(l, r)
|
|
r.set(1)
|
|
self.assertEqual(l, r)
|
|
|
|
@requires_sched_affinity
|
|
def test_cpu_set_bitwise(self):
|
|
l = posix.cpu_set(5)
|
|
l.set(0)
|
|
l.set(1)
|
|
r = posix.cpu_set(5)
|
|
r.set(1)
|
|
r.set(2)
|
|
b = l & r
|
|
self.assertEqual(b.count(), 1)
|
|
self.assertTrue(b.isset(1))
|
|
b = l | r
|
|
self.assertEqual(b.count(), 3)
|
|
self.assertTrue(b.isset(0))
|
|
self.assertTrue(b.isset(1))
|
|
self.assertTrue(b.isset(2))
|
|
b = l ^ r
|
|
self.assertEqual(b.count(), 2)
|
|
self.assertTrue(b.isset(0))
|
|
self.assertFalse(b.isset(1))
|
|
self.assertTrue(b.isset(2))
|
|
b = l
|
|
b |= r
|
|
self.assertIs(b, l)
|
|
self.assertEqual(l.count(), 3)
|
|
|
|
def test_rtld_constants(self):
|
|
# check presence of major RTLD_* constants
|
|
posix.RTLD_LAZY
|
|
posix.RTLD_NOW
|
|
posix.RTLD_GLOBAL
|
|
posix.RTLD_LOCAL
|
|
|
|
@unittest.skipUnless(hasattr(os, 'SEEK_HOLE'),
|
|
"test needs an OS that reports file holes")
|
|
@unittest.skipIf(sys.platform == 'freebsd9',
|
|
"Skip test because known kernel bug - " \
|
|
"http://lists.freebsd.org/pipermail/freebsd-amd64/2012-January/014332.html")
|
|
def test_fs_holes(self) :
|
|
# Even if the filesystem doesn't report holes,
|
|
# if the OS supports it the SEEK_* constants
|
|
# will be defined and will have a consistent
|
|
# behaviour:
|
|
# os.SEEK_DATA = current position
|
|
# os.SEEK_HOLE = end of file position
|
|
with open(support.TESTFN, 'r+b') as fp :
|
|
fp.write(b"hello")
|
|
fp.flush()
|
|
size = fp.tell()
|
|
fno = fp.fileno()
|
|
for i in range(size) :
|
|
self.assertEqual(i, os.lseek(fno, i, os.SEEK_DATA))
|
|
self.assertLessEqual(size, os.lseek(fno, i, os.SEEK_HOLE))
|
|
self.assertRaises(OSError, os.lseek, fno, size, os.SEEK_DATA)
|
|
self.assertRaises(OSError, os.lseek, fno, size, os.SEEK_HOLE)
|
|
|
|
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) + 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], list(range(16))]:
|
|
posix.setgroups(groups)
|
|
self.assertListEqual(groups, posix.getgroups())
|
|
|
|
def test_main():
|
|
try:
|
|
support.run_unittest(PosixTester, PosixGroupsTester)
|
|
finally:
|
|
support.reap_children()
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|