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1267 lines
51 KiB
Python
1267 lines
51 KiB
Python
"Test posix functions"
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from test import support
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android_not_root = support.android_not_root
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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 platform
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import pwd
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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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@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(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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@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(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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n = os.writev(fd, (b'test1', b'tt2', b't3'))
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self.assertEqual(n, 10)
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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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# Issue #20113: empty list of buffers should not crash
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try:
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size = posix.writev(fd, [])
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except OSError:
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# writev(fd, []) raises OSError(22, "Invalid argument")
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# on OpenIndiana
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pass
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else:
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self.assertEqual(size, 0)
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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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# Issue #20113: empty list of buffers should not crash
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try:
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size = posix.readv(fd, [])
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except OSError:
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# readv(fd, []) raises OSError(22, "Invalid argument")
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# on OpenIndiana
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pass
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else:
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self.assertEqual(size, 0)
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finally:
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os.close(fd)
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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(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(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.assertFalse(os.get_inheritable(fd))
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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(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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@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(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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@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(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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self.assertRaisesRegex(TypeError,
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'should be string, bytes, os.PathLike or integer, not',
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posix.stat, float(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(support.TESTFN))
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self.assertTrue(posix.stat(os.fsencode(support.TESTFN)))
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self.assertWarnsRegex(DeprecationWarning,
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'should be string, bytes, os.PathLike or integer, not',
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posix.stat, bytearray(os.fsencode(support.TESTFN)))
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self.assertRaisesRegex(TypeError,
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'should be string, bytes, os.PathLike or integer, not',
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posix.stat, None)
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self.assertRaisesRegex(TypeError,
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'should be string, bytes, os.PathLike or integer, not',
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posix.stat, list(support.TESTFN))
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self.assertRaisesRegex(TypeError,
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'should be string, bytes, os.PathLike or integer, not',
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posix.stat, list(os.fsencode(support.TESTFN)))
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@unittest.skipUnless(hasattr(posix, 'mkfifo'), "don't have mkfifo()")
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@unittest.skipIf(android_not_root, "mkfifo not allowed, non root user")
|
|
def test_mkfifo(self):
|
|
support.unlink(support.TESTFN)
|
|
posix.mkfifo(support.TESTFN, stat.S_IRUSR | stat.S_IWUSR)
|
|
self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'mknod') and hasattr(stat, 'S_IFIFO'),
|
|
"don't have mknod()/S_IFIFO")
|
|
@unittest.skipIf(android_not_root, "mknod not allowed, non root user")
|
|
def test_mknod(self):
|
|
# Test using mknod() to create a FIFO (the only use specified
|
|
# by POSIX).
|
|
support.unlink(support.TESTFN)
|
|
mode = stat.S_IFIFO | stat.S_IRUSR | stat.S_IWUSR
|
|
try:
|
|
posix.mknod(support.TESTFN, mode, 0)
|
|
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))
|
|
|
|
# Keyword arguments are also supported
|
|
support.unlink(support.TESTFN)
|
|
try:
|
|
posix.mknod(path=support.TESTFN, mode=mode, device=0,
|
|
dir_fd=None)
|
|
except OSError as e:
|
|
self.assertIn(e.errno, (errno.EPERM, errno.EINVAL))
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'stat'), 'test needs posix.stat()')
|
|
@unittest.skipUnless(hasattr(posix, 'makedev'), 'test needs posix.makedev()')
|
|
def test_makedev(self):
|
|
st = posix.stat(support.TESTFN)
|
|
dev = st.st_dev
|
|
self.assertIsInstance(dev, int)
|
|
self.assertGreaterEqual(dev, 0)
|
|
|
|
major = posix.major(dev)
|
|
self.assertIsInstance(major, int)
|
|
self.assertGreaterEqual(major, 0)
|
|
self.assertEqual(posix.major(dev), major)
|
|
self.assertRaises(TypeError, posix.major, float(dev))
|
|
self.assertRaises(TypeError, posix.major)
|
|
self.assertRaises((ValueError, OverflowError), posix.major, -1)
|
|
|
|
minor = posix.minor(dev)
|
|
self.assertIsInstance(minor, int)
|
|
self.assertGreaterEqual(minor, 0)
|
|
self.assertEqual(posix.minor(dev), minor)
|
|
self.assertRaises(TypeError, posix.minor, float(dev))
|
|
self.assertRaises(TypeError, posix.minor)
|
|
self.assertRaises((ValueError, OverflowError), posix.minor, -1)
|
|
|
|
self.assertEqual(posix.makedev(major, minor), dev)
|
|
self.assertRaises(TypeError, posix.makedev, float(major), minor)
|
|
self.assertRaises(TypeError, posix.makedev, major, float(minor))
|
|
self.assertRaises(TypeError, posix.makedev, major)
|
|
self.assertRaises(TypeError, posix.makedev)
|
|
|
|
def _test_all_chown_common(self, chown_func, first_param, stat_func):
|
|
"""Common code for chown, fchown and lchown tests."""
|
|
def check_stat(uid, gid):
|
|
if stat_func is not None:
|
|
stat = stat_func(first_param)
|
|
self.assertEqual(stat.st_uid, uid)
|
|
self.assertEqual(stat.st_gid, gid)
|
|
uid = os.getuid()
|
|
gid = os.getgid()
|
|
# test a successful chown call
|
|
chown_func(first_param, uid, gid)
|
|
check_stat(uid, gid)
|
|
chown_func(first_param, -1, gid)
|
|
check_stat(uid, gid)
|
|
chown_func(first_param, uid, -1)
|
|
check_stat(uid, gid)
|
|
|
|
if uid == 0:
|
|
# Try an amusingly large uid/gid to make sure we handle
|
|
# large unsigned values. (chown lets you use any
|
|
# uid/gid you like, even if they aren't defined.)
|
|
#
|
|
# This problem keeps coming up:
|
|
# http://bugs.python.org/issue1747858
|
|
# http://bugs.python.org/issue4591
|
|
# http://bugs.python.org/issue15301
|
|
# Hopefully the fix in 4591 fixes it for good!
|
|
#
|
|
# This part of the test only runs when run as root.
|
|
# Only scary people run their tests as root.
|
|
|
|
big_value = 2**31
|
|
chown_func(first_param, big_value, big_value)
|
|
check_stat(big_value, big_value)
|
|
chown_func(first_param, -1, -1)
|
|
check_stat(big_value, big_value)
|
|
chown_func(first_param, uid, gid)
|
|
check_stat(uid, gid)
|
|
elif platform.system() in ('HP-UX', 'SunOS'):
|
|
# HP-UX and Solaris can allow a non-root user to chown() to root
|
|
# (issue #5113)
|
|
raise unittest.SkipTest("Skipping because of non-standard chown() "
|
|
"behavior")
|
|
else:
|
|
# non-root cannot chown to root, raises OSError
|
|
self.assertRaises(OSError, chown_func, first_param, 0, 0)
|
|
check_stat(uid, gid)
|
|
self.assertRaises(OSError, chown_func, first_param, 0, -1)
|
|
check_stat(uid, gid)
|
|
if 0 not in os.getgroups():
|
|
self.assertRaises(OSError, chown_func, first_param, -1, 0)
|
|
check_stat(uid, gid)
|
|
# test illegal types
|
|
for t in str, float:
|
|
self.assertRaises(TypeError, chown_func, first_param, t(uid), gid)
|
|
check_stat(uid, gid)
|
|
self.assertRaises(TypeError, chown_func, first_param, uid, t(gid))
|
|
check_stat(uid, gid)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'chown'), "test needs os.chown()")
|
|
def test_chown(self):
|
|
# raise an OSError if the file does not exist
|
|
os.unlink(support.TESTFN)
|
|
self.assertRaises(OSError, posix.chown, support.TESTFN, -1, -1)
|
|
|
|
# re-create the file
|
|
support.create_empty_file(support.TESTFN)
|
|
self._test_all_chown_common(posix.chown, support.TESTFN,
|
|
getattr(posix, 'stat', None))
|
|
|
|
@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,
|
|
getattr(posix, 'fstat', None))
|
|
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,
|
|
getattr(posix, 'lstat', None))
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'chdir'), 'test needs posix.chdir()')
|
|
def test_chdir(self):
|
|
posix.chdir(os.curdir)
|
|
self.assertRaises(OSError, posix.chdir, support.TESTFN)
|
|
|
|
def test_listdir(self):
|
|
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).
|
|
self.assertTrue(support.TESTFN in posix.listdir())
|
|
|
|
def test_listdir_bytes(self):
|
|
# When listdir is called with a bytes object,
|
|
# the returned strings are of type bytes.
|
|
self.assertTrue(os.fsencode(support.TESTFN) in posix.listdir(b'.'))
|
|
|
|
@unittest.skipUnless(posix.listdir in os.supports_fd,
|
|
"test needs fd support for posix.listdir()")
|
|
def test_listdir_fd(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))
|
|
)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'access'), 'test needs posix.access()')
|
|
def test_access(self):
|
|
self.assertTrue(posix.access(support.TESTFN, os.R_OK))
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'umask'), 'test needs posix.umask()')
|
|
def test_umask(self):
|
|
old_mask = posix.umask(0)
|
|
self.assertIsInstance(old_mask, int)
|
|
posix.umask(old_mask)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'strerror'),
|
|
'test needs posix.strerror()')
|
|
def test_strerror(self):
|
|
self.assertTrue(posix.strerror(0))
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'pipe'), 'test needs posix.pipe()')
|
|
def test_pipe(self):
|
|
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.assertFalse(os.get_inheritable(r))
|
|
self.assertFalse(os.get_inheritable(w))
|
|
self.assertFalse(os.get_blocking(r))
|
|
self.assertFalse(os.get_blocking(w))
|
|
# 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
|
|
|
|
@support.cpython_only
|
|
@unittest.skipUnless(hasattr(os, 'pipe2'), "test needs os.pipe2()")
|
|
@support.requires_linux_version(2, 6, 27)
|
|
def test_pipe2_c_limits(self):
|
|
# Issue 15989
|
|
import _testcapi
|
|
self.assertRaises(OverflowError, os.pipe2, _testcapi.INT_MAX + 1)
|
|
self.assertRaises(OverflowError, os.pipe2, _testcapi.UINT_MAX + 1)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'utime'), 'test needs posix.utime()')
|
|
def test_utime(self):
|
|
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'))
|
|
|
|
# ZFS returns EOPNOTSUPP when attempting to set flag UF_IMMUTABLE.
|
|
flags = st.st_flags | stat.UF_IMMUTABLE
|
|
try:
|
|
chflags_func(target_file, flags, **kwargs)
|
|
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 OSError 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):
|
|
# ZFS returns EOPNOTSUPP when attempting to set flag UF_IMMUTABLE.
|
|
flags = dummy_symlink_st.st_flags | stat.UF_IMMUTABLE
|
|
try:
|
|
fn(_DUMMY_SYMLINK, flags)
|
|
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(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)
|
|
|
|
@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(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):
|
|
user = pwd.getpwuid(os.getuid())[0]
|
|
group = pwd.getpwuid(os.getuid())[3]
|
|
self.assertIn(group, posix.getgrouplist(user, group))
|
|
|
|
|
|
@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()
|
|
|
|
try:
|
|
idg_groups = set(int(g) for g in groups.split())
|
|
except ValueError:
|
|
idg_groups = set()
|
|
if ret is not None or not idg_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, duplicates, and the effective gid.
|
|
# #10822/#26944 - It is implementation defined whether
|
|
# posix.getgroups() includes the effective gid.
|
|
symdiff = idg_groups.symmetric_difference(posix.getgroups())
|
|
self.assertTrue(not symdiff or symdiff == {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)
|
|
s2 = posix.stat(support.TESTFN, dir_fd=None)
|
|
self.assertEqual(s1, s2)
|
|
self.assertRaisesRegex(TypeError, 'should be integer or None, not',
|
|
posix.stat, support.TESTFN, dir_fd=posix.getcwd())
|
|
self.assertRaisesRegex(TypeError, 'should be integer or None, not',
|
|
posix.stat, support.TESTFN, dir_fd=float(f))
|
|
self.assertRaises(OverflowError,
|
|
posix.stat, support.TESTFN, dir_fd=10**20)
|
|
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 ValueError:
|
|
# 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()")
|
|
@unittest.skipIf(android_not_root, "hard link not allowed, non root user")
|
|
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()")
|
|
@unittest.skipIf(android_not_root, "mknod not allowed, non root user")
|
|
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 raise 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 raise 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()")
|
|
@unittest.skipIf(android_not_root, "mkfifo not allowed, non root user")
|
|
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, 'sched_setaffinity'),
|
|
"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)
|
|
|
|
# POSIX states that calling sched_setparam() or sched_setscheduler() on
|
|
# a process with a scheduling policy other than SCHED_FIFO or SCHED_RR
|
|
# is implementation-defined: NetBSD and FreeBSD can return EINVAL.
|
|
if not sys.platform.startswith(('freebsd', 'netbsd')):
|
|
try:
|
|
posix.sched_setscheduler(0, mine, param)
|
|
posix.sched_setparam(0, param)
|
|
except OSError as e:
|
|
if e.errno != errno.EPERM:
|
|
raise
|
|
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_getaffinity(self):
|
|
mask = posix.sched_getaffinity(0)
|
|
self.assertIsInstance(mask, set)
|
|
self.assertGreaterEqual(len(mask), 1)
|
|
self.assertRaises(OSError, posix.sched_getaffinity, -1)
|
|
for cpu in mask:
|
|
self.assertIsInstance(cpu, int)
|
|
self.assertGreaterEqual(cpu, 0)
|
|
self.assertLess(cpu, 1 << 32)
|
|
|
|
@requires_sched_affinity
|
|
def test_sched_setaffinity(self):
|
|
mask = posix.sched_getaffinity(0)
|
|
if len(mask) > 1:
|
|
# Empty masks are forbidden
|
|
mask.pop()
|
|
posix.sched_setaffinity(0, mask)
|
|
self.assertEqual(posix.sched_getaffinity(0), mask)
|
|
self.assertRaises(OSError, posix.sched_setaffinity, 0, [])
|
|
self.assertRaises(ValueError, posix.sched_setaffinity, 0, [-10])
|
|
self.assertRaises(OverflowError, posix.sched_setaffinity, 0, [1<<128])
|
|
self.assertRaises(OSError, posix.sched_setaffinity, -1, mask)
|
|
|
|
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")
|
|
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()
|
|
try :
|
|
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)
|
|
except OSError :
|
|
# Some OSs claim to support SEEK_HOLE/SEEK_DATA
|
|
# but it is not true.
|
|
# For instance:
|
|
# http://lists.freebsd.org/pipermail/freebsd-amd64/2012-January/014332.html
|
|
raise unittest.SkipTest("OSError raised!")
|
|
|
|
def test_path_error2(self):
|
|
"""
|
|
Test functions that call path_error2(), providing two filenames in their exceptions.
|
|
"""
|
|
for name in ("rename", "replace", "link"):
|
|
function = getattr(os, name, None)
|
|
if function is None:
|
|
continue
|
|
|
|
for dst in ("noodly2", support.TESTFN):
|
|
try:
|
|
function('doesnotexistfilename', dst)
|
|
except OSError as e:
|
|
self.assertIn("'doesnotexistfilename' -> '{}'".format(dst), str(e))
|
|
break
|
|
else:
|
|
self.fail("No valid path_error2() test for os." + name)
|
|
|
|
def test_path_with_null_character(self):
|
|
fn = support.TESTFN
|
|
fn_with_NUL = fn + '\0'
|
|
self.addCleanup(support.unlink, fn)
|
|
support.unlink(fn)
|
|
fd = None
|
|
try:
|
|
with self.assertRaises(ValueError):
|
|
fd = os.open(fn_with_NUL, os.O_WRONLY | os.O_CREAT) # raises
|
|
finally:
|
|
if fd is not None:
|
|
os.close(fd)
|
|
self.assertFalse(os.path.exists(fn))
|
|
self.assertRaises(ValueError, os.mkdir, fn_with_NUL)
|
|
self.assertFalse(os.path.exists(fn))
|
|
open(fn, 'wb').close()
|
|
self.assertRaises(ValueError, os.stat, fn_with_NUL)
|
|
|
|
def test_path_with_null_byte(self):
|
|
fn = os.fsencode(support.TESTFN)
|
|
fn_with_NUL = fn + b'\0'
|
|
self.addCleanup(support.unlink, fn)
|
|
support.unlink(fn)
|
|
fd = None
|
|
try:
|
|
with self.assertRaises(ValueError):
|
|
fd = os.open(fn_with_NUL, os.O_WRONLY | os.O_CREAT) # raises
|
|
finally:
|
|
if fd is not None:
|
|
os.close(fd)
|
|
self.assertFalse(os.path.exists(fn))
|
|
self.assertRaises(ValueError, os.mkdir, fn_with_NUL)
|
|
self.assertFalse(os.path.exists(fn))
|
|
open(fn, 'wb').close()
|
|
self.assertRaises(ValueError, os.stat, fn_with_NUL)
|
|
|
|
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], 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()
|