mirror of https://github.com/python/cpython
3024 lines
110 KiB
Python
3024 lines
110 KiB
Python
# As a test suite for the os module, this is woefully inadequate, but this
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# does add tests for a few functions which have been determined to be more
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# portable than they had been thought to be.
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import asynchat
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import asyncore
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import codecs
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import contextlib
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import decimal
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import errno
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import fractions
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import getpass
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import itertools
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import locale
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import mmap
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import os
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import pickle
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import platform
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import re
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import shutil
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import signal
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import socket
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import stat
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import subprocess
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import sys
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import sysconfig
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import time
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import unittest
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import uuid
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import warnings
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from test import support
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try:
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import threading
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except ImportError:
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threading = None
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try:
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import resource
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except ImportError:
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resource = None
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try:
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import fcntl
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except ImportError:
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fcntl = None
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try:
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import _winapi
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except ImportError:
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_winapi = None
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try:
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import grp
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groups = [g.gr_gid for g in grp.getgrall() if getpass.getuser() in g.gr_mem]
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if hasattr(os, 'getgid'):
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process_gid = os.getgid()
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if process_gid not in groups:
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groups.append(process_gid)
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except ImportError:
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groups = []
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try:
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import pwd
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all_users = [u.pw_uid for u in pwd.getpwall()]
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except ImportError:
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all_users = []
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try:
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from _testcapi import INT_MAX, PY_SSIZE_T_MAX
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except ImportError:
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INT_MAX = PY_SSIZE_T_MAX = sys.maxsize
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from test.support.script_helper import assert_python_ok
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root_in_posix = False
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if hasattr(os, 'geteuid'):
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root_in_posix = (os.geteuid() == 0)
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# Detect whether we're on a Linux system that uses the (now outdated
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# and unmaintained) linuxthreads threading library. There's an issue
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# when combining linuxthreads with a failed execv call: see
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# http://bugs.python.org/issue4970.
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if hasattr(sys, 'thread_info') and sys.thread_info.version:
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USING_LINUXTHREADS = sys.thread_info.version.startswith("linuxthreads")
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else:
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USING_LINUXTHREADS = False
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# Issue #14110: Some tests fail on FreeBSD if the user is in the wheel group.
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HAVE_WHEEL_GROUP = sys.platform.startswith('freebsd') and os.getgid() == 0
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# Tests creating TESTFN
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class FileTests(unittest.TestCase):
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def setUp(self):
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if os.path.lexists(support.TESTFN):
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os.unlink(support.TESTFN)
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tearDown = setUp
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def test_access(self):
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f = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
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os.close(f)
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self.assertTrue(os.access(support.TESTFN, os.W_OK))
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def test_closerange(self):
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first = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
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# We must allocate two consecutive file descriptors, otherwise
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# it will mess up other file descriptors (perhaps even the three
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# standard ones).
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second = os.dup(first)
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try:
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retries = 0
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while second != first + 1:
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os.close(first)
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retries += 1
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if retries > 10:
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# XXX test skipped
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self.skipTest("couldn't allocate two consecutive fds")
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first, second = second, os.dup(second)
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finally:
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os.close(second)
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# close a fd that is open, and one that isn't
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os.closerange(first, first + 2)
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self.assertRaises(OSError, os.write, first, b"a")
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@support.cpython_only
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def test_rename(self):
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path = support.TESTFN
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old = sys.getrefcount(path)
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self.assertRaises(TypeError, os.rename, path, 0)
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new = sys.getrefcount(path)
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self.assertEqual(old, new)
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def test_read(self):
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with open(support.TESTFN, "w+b") as fobj:
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fobj.write(b"spam")
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fobj.flush()
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fd = fobj.fileno()
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os.lseek(fd, 0, 0)
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s = os.read(fd, 4)
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self.assertEqual(type(s), bytes)
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self.assertEqual(s, b"spam")
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@support.cpython_only
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# Skip the test on 32-bit platforms: the number of bytes must fit in a
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# Py_ssize_t type
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@unittest.skipUnless(INT_MAX < PY_SSIZE_T_MAX,
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"needs INT_MAX < PY_SSIZE_T_MAX")
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@support.bigmemtest(size=INT_MAX + 10, memuse=1, dry_run=False)
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def test_large_read(self, size):
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with open(support.TESTFN, "wb") as fp:
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fp.write(b'test')
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self.addCleanup(support.unlink, support.TESTFN)
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# Issue #21932: Make sure that os.read() does not raise an
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# OverflowError for size larger than INT_MAX
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with open(support.TESTFN, "rb") as fp:
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data = os.read(fp.fileno(), size)
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# The test does not try to read more than 2 GB at once because the
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# operating system is free to return less bytes than requested.
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self.assertEqual(data, b'test')
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def test_write(self):
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# os.write() accepts bytes- and buffer-like objects but not strings
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fd = os.open(support.TESTFN, os.O_CREAT | os.O_WRONLY)
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self.assertRaises(TypeError, os.write, fd, "beans")
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os.write(fd, b"bacon\n")
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os.write(fd, bytearray(b"eggs\n"))
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os.write(fd, memoryview(b"spam\n"))
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os.close(fd)
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with open(support.TESTFN, "rb") as fobj:
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self.assertEqual(fobj.read().splitlines(),
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[b"bacon", b"eggs", b"spam"])
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def write_windows_console(self, *args):
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retcode = subprocess.call(args,
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# use a new console to not flood the test output
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creationflags=subprocess.CREATE_NEW_CONSOLE,
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# use a shell to hide the console window (SW_HIDE)
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shell=True)
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self.assertEqual(retcode, 0)
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@unittest.skipUnless(sys.platform == 'win32',
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'test specific to the Windows console')
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def test_write_windows_console(self):
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# Issue #11395: the Windows console returns an error (12: not enough
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# space error) on writing into stdout if stdout mode is binary and the
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# length is greater than 66,000 bytes (or less, depending on heap
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# usage).
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code = "print('x' * 100000)"
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self.write_windows_console(sys.executable, "-c", code)
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self.write_windows_console(sys.executable, "-u", "-c", code)
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def fdopen_helper(self, *args):
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fd = os.open(support.TESTFN, os.O_RDONLY)
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f = os.fdopen(fd, *args)
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f.close()
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def test_fdopen(self):
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fd = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
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os.close(fd)
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self.fdopen_helper()
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self.fdopen_helper('r')
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self.fdopen_helper('r', 100)
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def test_replace(self):
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TESTFN2 = support.TESTFN + ".2"
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with open(support.TESTFN, 'w') as f:
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f.write("1")
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with open(TESTFN2, 'w') as f:
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f.write("2")
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self.addCleanup(os.unlink, TESTFN2)
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os.replace(support.TESTFN, TESTFN2)
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self.assertRaises(FileNotFoundError, os.stat, support.TESTFN)
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with open(TESTFN2, 'r') as f:
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self.assertEqual(f.read(), "1")
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def test_open_keywords(self):
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f = os.open(path=__file__, flags=os.O_RDONLY, mode=0o777,
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dir_fd=None)
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os.close(f)
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def test_symlink_keywords(self):
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symlink = support.get_attribute(os, "symlink")
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try:
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symlink(src='target', dst=support.TESTFN,
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target_is_directory=False, dir_fd=None)
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except (NotImplementedError, OSError):
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pass # No OS support or unprivileged user
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# Test attributes on return values from os.*stat* family.
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class StatAttributeTests(unittest.TestCase):
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def setUp(self):
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self.fname = support.TESTFN
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self.addCleanup(support.unlink, self.fname)
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with open(self.fname, 'wb') as fp:
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fp.write(b"ABC")
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@unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()')
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def check_stat_attributes(self, fname):
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result = os.stat(fname)
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# Make sure direct access works
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self.assertEqual(result[stat.ST_SIZE], 3)
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self.assertEqual(result.st_size, 3)
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# Make sure all the attributes are there
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members = dir(result)
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for name in dir(stat):
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if name[:3] == 'ST_':
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attr = name.lower()
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if name.endswith("TIME"):
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def trunc(x): return int(x)
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else:
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def trunc(x): return x
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self.assertEqual(trunc(getattr(result, attr)),
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result[getattr(stat, name)])
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self.assertIn(attr, members)
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# Make sure that the st_?time and st_?time_ns fields roughly agree
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# (they should always agree up to around tens-of-microseconds)
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for name in 'st_atime st_mtime st_ctime'.split():
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floaty = int(getattr(result, name) * 100000)
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nanosecondy = getattr(result, name + "_ns") // 10000
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self.assertAlmostEqual(floaty, nanosecondy, delta=2)
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try:
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result[200]
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self.fail("No exception raised")
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except IndexError:
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pass
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# Make sure that assignment fails
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try:
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result.st_mode = 1
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self.fail("No exception raised")
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except AttributeError:
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pass
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try:
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result.st_rdev = 1
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self.fail("No exception raised")
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except (AttributeError, TypeError):
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pass
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try:
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result.parrot = 1
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self.fail("No exception raised")
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except AttributeError:
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pass
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# Use the stat_result constructor with a too-short tuple.
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try:
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result2 = os.stat_result((10,))
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self.fail("No exception raised")
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except TypeError:
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pass
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# Use the constructor with a too-long tuple.
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try:
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result2 = os.stat_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
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except TypeError:
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pass
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def test_stat_attributes(self):
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self.check_stat_attributes(self.fname)
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def test_stat_attributes_bytes(self):
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try:
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fname = self.fname.encode(sys.getfilesystemencoding())
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except UnicodeEncodeError:
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self.skipTest("cannot encode %a for the filesystem" % self.fname)
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.check_stat_attributes(fname)
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def test_stat_result_pickle(self):
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result = os.stat(self.fname)
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for proto in range(pickle.HIGHEST_PROTOCOL + 1):
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p = pickle.dumps(result, proto)
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self.assertIn(b'stat_result', p)
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if proto < 4:
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self.assertIn(b'cos\nstat_result\n', p)
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unpickled = pickle.loads(p)
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self.assertEqual(result, unpickled)
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@unittest.skipUnless(hasattr(os, 'statvfs'), 'test needs os.statvfs()')
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def test_statvfs_attributes(self):
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try:
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result = os.statvfs(self.fname)
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except OSError as e:
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# On AtheOS, glibc always returns ENOSYS
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if e.errno == errno.ENOSYS:
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self.skipTest('os.statvfs() failed with ENOSYS')
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# Make sure direct access works
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self.assertEqual(result.f_bfree, result[3])
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# Make sure all the attributes are there.
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members = ('bsize', 'frsize', 'blocks', 'bfree', 'bavail', 'files',
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'ffree', 'favail', 'flag', 'namemax')
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for value, member in enumerate(members):
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self.assertEqual(getattr(result, 'f_' + member), result[value])
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# Make sure that assignment really fails
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try:
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result.f_bfree = 1
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self.fail("No exception raised")
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except AttributeError:
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pass
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try:
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result.parrot = 1
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self.fail("No exception raised")
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except AttributeError:
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pass
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# Use the constructor with a too-short tuple.
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try:
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result2 = os.statvfs_result((10,))
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self.fail("No exception raised")
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except TypeError:
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pass
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# Use the constructor with a too-long tuple.
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try:
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result2 = os.statvfs_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
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except TypeError:
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pass
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@unittest.skipUnless(hasattr(os, 'statvfs'),
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"need os.statvfs()")
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def test_statvfs_result_pickle(self):
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try:
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result = os.statvfs(self.fname)
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except OSError as e:
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# On AtheOS, glibc always returns ENOSYS
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if e.errno == errno.ENOSYS:
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self.skipTest('os.statvfs() failed with ENOSYS')
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for proto in range(pickle.HIGHEST_PROTOCOL + 1):
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p = pickle.dumps(result, proto)
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self.assertIn(b'statvfs_result', p)
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if proto < 4:
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self.assertIn(b'cos\nstatvfs_result\n', p)
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unpickled = pickle.loads(p)
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self.assertEqual(result, unpickled)
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@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
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def test_1686475(self):
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# Verify that an open file can be stat'ed
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try:
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os.stat(r"c:\pagefile.sys")
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except FileNotFoundError:
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self.skipTest(r'c:\pagefile.sys does not exist')
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except OSError as e:
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self.fail("Could not stat pagefile.sys")
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@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
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@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
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def test_15261(self):
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# Verify that stat'ing a closed fd does not cause crash
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r, w = os.pipe()
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try:
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os.stat(r) # should not raise error
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finally:
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os.close(r)
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os.close(w)
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with self.assertRaises(OSError) as ctx:
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os.stat(r)
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self.assertEqual(ctx.exception.errno, errno.EBADF)
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|
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|
def check_file_attributes(self, result):
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self.assertTrue(hasattr(result, 'st_file_attributes'))
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self.assertTrue(isinstance(result.st_file_attributes, int))
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self.assertTrue(0 <= result.st_file_attributes <= 0xFFFFFFFF)
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|
|
|
@unittest.skipUnless(sys.platform == "win32",
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|
"st_file_attributes is Win32 specific")
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|
def test_file_attributes(self):
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# test file st_file_attributes (FILE_ATTRIBUTE_DIRECTORY not set)
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result = os.stat(self.fname)
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self.check_file_attributes(result)
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self.assertEqual(
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result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
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|
0)
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|
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|
# test directory st_file_attributes (FILE_ATTRIBUTE_DIRECTORY set)
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dirname = support.TESTFN + "dir"
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os.mkdir(dirname)
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self.addCleanup(os.rmdir, dirname)
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|
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|
result = os.stat(dirname)
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self.check_file_attributes(result)
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self.assertEqual(
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result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
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|
stat.FILE_ATTRIBUTE_DIRECTORY)
|
|
|
|
|
|
class UtimeTests(unittest.TestCase):
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|
def setUp(self):
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|
self.dirname = support.TESTFN
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self.fname = os.path.join(self.dirname, "f1")
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|
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|
self.addCleanup(support.rmtree, self.dirname)
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os.mkdir(self.dirname)
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|
with open(self.fname, 'wb') as fp:
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fp.write(b"ABC")
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|
|
|
def restore_float_times(state):
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|
with warnings.catch_warnings():
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|
warnings.simplefilter("ignore", DeprecationWarning)
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|
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|
os.stat_float_times(state)
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|
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|
# ensure that st_atime and st_mtime are float
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|
with warnings.catch_warnings():
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|
warnings.simplefilter("ignore", DeprecationWarning)
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|
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|
old_float_times = os.stat_float_times(-1)
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self.addCleanup(restore_float_times, old_float_times)
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|
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|
os.stat_float_times(True)
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|
|
|
def support_subsecond(self, filename):
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# Heuristic to check if the filesystem supports timestamp with
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# subsecond resolution: check if float and int timestamps are different
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st = os.stat(filename)
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return ((st.st_atime != st[7])
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or (st.st_mtime != st[8])
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or (st.st_ctime != st[9]))
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|
|
|
def _test_utime(self, set_time, filename=None):
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if not filename:
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filename = self.fname
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|
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support_subsecond = self.support_subsecond(filename)
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if support_subsecond:
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|
# Timestamp with a resolution of 1 microsecond (10^-6).
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#
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|
# The resolution of the C internal function used by os.utime()
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|
# depends on the platform: 1 sec, 1 us, 1 ns. Writing a portable
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|
# test with a resolution of 1 ns requires more work:
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|
# see the issue #15745.
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|
atime_ns = 1002003000 # 1.002003 seconds
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|
mtime_ns = 4005006000 # 4.005006 seconds
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else:
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# use a resolution of 1 second
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atime_ns = 5 * 10**9
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mtime_ns = 8 * 10**9
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|
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set_time(filename, (atime_ns, mtime_ns))
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st = os.stat(filename)
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|
|
|
if support_subsecond:
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self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-6)
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self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-6)
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|
else:
|
|
self.assertEqual(st.st_atime, atime_ns * 1e-9)
|
|
self.assertEqual(st.st_mtime, mtime_ns * 1e-9)
|
|
self.assertEqual(st.st_atime_ns, atime_ns)
|
|
self.assertEqual(st.st_mtime_ns, mtime_ns)
|
|
|
|
def test_utime(self):
|
|
def set_time(filename, ns):
|
|
# test the ns keyword parameter
|
|
os.utime(filename, ns=ns)
|
|
self._test_utime(set_time)
|
|
|
|
@staticmethod
|
|
def ns_to_sec(ns):
|
|
# Convert a number of nanosecond (int) to a number of seconds (float).
|
|
# Round towards infinity by adding 0.5 nanosecond to avoid rounding
|
|
# issue, os.utime() rounds towards minus infinity.
|
|
return (ns * 1e-9) + 0.5e-9
|
|
|
|
def test_utime_by_indexed(self):
|
|
# pass times as floating point seconds as the second indexed parameter
|
|
def set_time(filename, ns):
|
|
atime_ns, mtime_ns = ns
|
|
atime = self.ns_to_sec(atime_ns)
|
|
mtime = self.ns_to_sec(mtime_ns)
|
|
# test utimensat(timespec), utimes(timeval), utime(utimbuf)
|
|
# or utime(time_t)
|
|
os.utime(filename, (atime, mtime))
|
|
self._test_utime(set_time)
|
|
|
|
def test_utime_by_times(self):
|
|
def set_time(filename, ns):
|
|
atime_ns, mtime_ns = ns
|
|
atime = self.ns_to_sec(atime_ns)
|
|
mtime = self.ns_to_sec(mtime_ns)
|
|
# test the times keyword parameter
|
|
os.utime(filename, times=(atime, mtime))
|
|
self._test_utime(set_time)
|
|
|
|
@unittest.skipUnless(os.utime in os.supports_follow_symlinks,
|
|
"follow_symlinks support for utime required "
|
|
"for this test.")
|
|
def test_utime_nofollow_symlinks(self):
|
|
def set_time(filename, ns):
|
|
# use follow_symlinks=False to test utimensat(timespec)
|
|
# or lutimes(timeval)
|
|
os.utime(filename, ns=ns, follow_symlinks=False)
|
|
self._test_utime(set_time)
|
|
|
|
@unittest.skipUnless(os.utime in os.supports_fd,
|
|
"fd support for utime required for this test.")
|
|
def test_utime_fd(self):
|
|
def set_time(filename, ns):
|
|
with open(filename, 'wb') as fp:
|
|
# use a file descriptor to test futimens(timespec)
|
|
# or futimes(timeval)
|
|
os.utime(fp.fileno(), ns=ns)
|
|
self._test_utime(set_time)
|
|
|
|
@unittest.skipUnless(os.utime in os.supports_dir_fd,
|
|
"dir_fd support for utime required for this test.")
|
|
def test_utime_dir_fd(self):
|
|
def set_time(filename, ns):
|
|
dirname, name = os.path.split(filename)
|
|
dirfd = os.open(dirname, os.O_RDONLY)
|
|
try:
|
|
# pass dir_fd to test utimensat(timespec) or futimesat(timeval)
|
|
os.utime(name, dir_fd=dirfd, ns=ns)
|
|
finally:
|
|
os.close(dirfd)
|
|
self._test_utime(set_time)
|
|
|
|
def test_utime_directory(self):
|
|
def set_time(filename, ns):
|
|
# test calling os.utime() on a directory
|
|
os.utime(filename, ns=ns)
|
|
self._test_utime(set_time, filename=self.dirname)
|
|
|
|
def _test_utime_current(self, set_time):
|
|
# Get the system clock
|
|
current = time.time()
|
|
|
|
# Call os.utime() to set the timestamp to the current system clock
|
|
set_time(self.fname)
|
|
|
|
if not self.support_subsecond(self.fname):
|
|
delta = 1.0
|
|
else:
|
|
# On Windows, the usual resolution of time.time() is 15.6 ms
|
|
delta = 0.020
|
|
st = os.stat(self.fname)
|
|
msg = ("st_time=%r, current=%r, dt=%r"
|
|
% (st.st_mtime, current, st.st_mtime - current))
|
|
self.assertAlmostEqual(st.st_mtime, current,
|
|
delta=delta, msg=msg)
|
|
|
|
def test_utime_current(self):
|
|
def set_time(filename):
|
|
# Set to the current time in the new way
|
|
os.utime(self.fname)
|
|
self._test_utime_current(set_time)
|
|
|
|
def test_utime_current_old(self):
|
|
def set_time(filename):
|
|
# Set to the current time in the old explicit way.
|
|
os.utime(self.fname, None)
|
|
self._test_utime_current(set_time)
|
|
|
|
def get_file_system(self, path):
|
|
if sys.platform == 'win32':
|
|
root = os.path.splitdrive(os.path.abspath(path))[0] + '\\'
|
|
import ctypes
|
|
kernel32 = ctypes.windll.kernel32
|
|
buf = ctypes.create_unicode_buffer("", 100)
|
|
ok = kernel32.GetVolumeInformationW(root, None, 0,
|
|
None, None, None,
|
|
buf, len(buf))
|
|
if ok:
|
|
return buf.value
|
|
# return None if the filesystem is unknown
|
|
|
|
def test_large_time(self):
|
|
# Many filesystems are limited to the year 2038. At least, the test
|
|
# pass with NTFS filesystem.
|
|
if self.get_file_system(self.dirname) != "NTFS":
|
|
self.skipTest("requires NTFS")
|
|
|
|
large = 5000000000 # some day in 2128
|
|
os.utime(self.fname, (large, large))
|
|
self.assertEqual(os.stat(self.fname).st_mtime, large)
|
|
|
|
def test_utime_invalid_arguments(self):
|
|
# seconds and nanoseconds parameters are mutually exclusive
|
|
with self.assertRaises(ValueError):
|
|
os.utime(self.fname, (5, 5), ns=(5, 5))
|
|
|
|
|
|
from test import mapping_tests
|
|
|
|
class EnvironTests(mapping_tests.BasicTestMappingProtocol):
|
|
"""check that os.environ object conform to mapping protocol"""
|
|
type2test = None
|
|
|
|
def setUp(self):
|
|
self.__save = dict(os.environ)
|
|
if os.supports_bytes_environ:
|
|
self.__saveb = dict(os.environb)
|
|
for key, value in self._reference().items():
|
|
os.environ[key] = value
|
|
|
|
def tearDown(self):
|
|
os.environ.clear()
|
|
os.environ.update(self.__save)
|
|
if os.supports_bytes_environ:
|
|
os.environb.clear()
|
|
os.environb.update(self.__saveb)
|
|
|
|
def _reference(self):
|
|
return {"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"}
|
|
|
|
def _empty_mapping(self):
|
|
os.environ.clear()
|
|
return os.environ
|
|
|
|
# Bug 1110478
|
|
@unittest.skipUnless(os.path.exists('/bin/sh'), 'requires /bin/sh')
|
|
def test_update2(self):
|
|
os.environ.clear()
|
|
os.environ.update(HELLO="World")
|
|
with os.popen("/bin/sh -c 'echo $HELLO'") as popen:
|
|
value = popen.read().strip()
|
|
self.assertEqual(value, "World")
|
|
|
|
@unittest.skipUnless(os.path.exists('/bin/sh'), 'requires /bin/sh')
|
|
def test_os_popen_iter(self):
|
|
with os.popen(
|
|
"/bin/sh -c 'echo \"line1\nline2\nline3\"'") as popen:
|
|
it = iter(popen)
|
|
self.assertEqual(next(it), "line1\n")
|
|
self.assertEqual(next(it), "line2\n")
|
|
self.assertEqual(next(it), "line3\n")
|
|
self.assertRaises(StopIteration, next, it)
|
|
|
|
# Verify environ keys and values from the OS are of the
|
|
# correct str type.
|
|
def test_keyvalue_types(self):
|
|
for key, val in os.environ.items():
|
|
self.assertEqual(type(key), str)
|
|
self.assertEqual(type(val), str)
|
|
|
|
def test_items(self):
|
|
for key, value in self._reference().items():
|
|
self.assertEqual(os.environ.get(key), value)
|
|
|
|
# Issue 7310
|
|
def test___repr__(self):
|
|
"""Check that the repr() of os.environ looks like environ({...})."""
|
|
env = os.environ
|
|
self.assertEqual(repr(env), 'environ({{{}}})'.format(', '.join(
|
|
'{!r}: {!r}'.format(key, value)
|
|
for key, value in env.items())))
|
|
|
|
def test_get_exec_path(self):
|
|
defpath_list = os.defpath.split(os.pathsep)
|
|
test_path = ['/monty', '/python', '', '/flying/circus']
|
|
test_env = {'PATH': os.pathsep.join(test_path)}
|
|
|
|
saved_environ = os.environ
|
|
try:
|
|
os.environ = dict(test_env)
|
|
# Test that defaulting to os.environ works.
|
|
self.assertSequenceEqual(test_path, os.get_exec_path())
|
|
self.assertSequenceEqual(test_path, os.get_exec_path(env=None))
|
|
finally:
|
|
os.environ = saved_environ
|
|
|
|
# No PATH environment variable
|
|
self.assertSequenceEqual(defpath_list, os.get_exec_path({}))
|
|
# Empty PATH environment variable
|
|
self.assertSequenceEqual(('',), os.get_exec_path({'PATH':''}))
|
|
# Supplied PATH environment variable
|
|
self.assertSequenceEqual(test_path, os.get_exec_path(test_env))
|
|
|
|
if os.supports_bytes_environ:
|
|
# env cannot contain 'PATH' and b'PATH' keys
|
|
try:
|
|
# ignore BytesWarning warning
|
|
with warnings.catch_warnings(record=True):
|
|
mixed_env = {'PATH': '1', b'PATH': b'2'}
|
|
except BytesWarning:
|
|
# mixed_env cannot be created with python -bb
|
|
pass
|
|
else:
|
|
self.assertRaises(ValueError, os.get_exec_path, mixed_env)
|
|
|
|
# bytes key and/or value
|
|
self.assertSequenceEqual(os.get_exec_path({b'PATH': b'abc'}),
|
|
['abc'])
|
|
self.assertSequenceEqual(os.get_exec_path({b'PATH': 'abc'}),
|
|
['abc'])
|
|
self.assertSequenceEqual(os.get_exec_path({'PATH': b'abc'}),
|
|
['abc'])
|
|
|
|
@unittest.skipUnless(os.supports_bytes_environ,
|
|
"os.environb required for this test.")
|
|
def test_environb(self):
|
|
# os.environ -> os.environb
|
|
value = 'euro\u20ac'
|
|
try:
|
|
value_bytes = value.encode(sys.getfilesystemencoding(),
|
|
'surrogateescape')
|
|
except UnicodeEncodeError:
|
|
msg = "U+20AC character is not encodable to %s" % (
|
|
sys.getfilesystemencoding(),)
|
|
self.skipTest(msg)
|
|
os.environ['unicode'] = value
|
|
self.assertEqual(os.environ['unicode'], value)
|
|
self.assertEqual(os.environb[b'unicode'], value_bytes)
|
|
|
|
# os.environb -> os.environ
|
|
value = b'\xff'
|
|
os.environb[b'bytes'] = value
|
|
self.assertEqual(os.environb[b'bytes'], value)
|
|
value_str = value.decode(sys.getfilesystemencoding(), 'surrogateescape')
|
|
self.assertEqual(os.environ['bytes'], value_str)
|
|
|
|
# On FreeBSD < 7 and OS X < 10.6, unsetenv() doesn't return a value (issue
|
|
# #13415).
|
|
@support.requires_freebsd_version(7)
|
|
@support.requires_mac_ver(10, 6)
|
|
def test_unset_error(self):
|
|
if sys.platform == "win32":
|
|
# an environment variable is limited to 32,767 characters
|
|
key = 'x' * 50000
|
|
self.assertRaises(ValueError, os.environ.__delitem__, key)
|
|
else:
|
|
# "=" is not allowed in a variable name
|
|
key = 'key='
|
|
self.assertRaises(OSError, os.environ.__delitem__, key)
|
|
|
|
def test_key_type(self):
|
|
missing = 'missingkey'
|
|
self.assertNotIn(missing, os.environ)
|
|
|
|
with self.assertRaises(KeyError) as cm:
|
|
os.environ[missing]
|
|
self.assertIs(cm.exception.args[0], missing)
|
|
self.assertTrue(cm.exception.__suppress_context__)
|
|
|
|
with self.assertRaises(KeyError) as cm:
|
|
del os.environ[missing]
|
|
self.assertIs(cm.exception.args[0], missing)
|
|
self.assertTrue(cm.exception.__suppress_context__)
|
|
|
|
|
|
class WalkTests(unittest.TestCase):
|
|
"""Tests for os.walk()."""
|
|
|
|
# Wrapper to hide minor differences between os.walk and os.fwalk
|
|
# to tests both functions with the same code base
|
|
def walk(self, directory, **kwargs):
|
|
if 'follow_symlinks' in kwargs:
|
|
kwargs['followlinks'] = kwargs.pop('follow_symlinks')
|
|
return os.walk(directory, **kwargs)
|
|
|
|
def setUp(self):
|
|
join = os.path.join
|
|
|
|
# Build:
|
|
# TESTFN/
|
|
# TEST1/ a file kid and two directory kids
|
|
# tmp1
|
|
# SUB1/ a file kid and a directory kid
|
|
# tmp2
|
|
# SUB11/ no kids
|
|
# SUB2/ a file kid and a dirsymlink kid
|
|
# tmp3
|
|
# link/ a symlink to TESTFN.2
|
|
# broken_link
|
|
# TEST2/
|
|
# tmp4 a lone file
|
|
self.walk_path = join(support.TESTFN, "TEST1")
|
|
self.sub1_path = join(self.walk_path, "SUB1")
|
|
self.sub11_path = join(self.sub1_path, "SUB11")
|
|
sub2_path = join(self.walk_path, "SUB2")
|
|
tmp1_path = join(self.walk_path, "tmp1")
|
|
tmp2_path = join(self.sub1_path, "tmp2")
|
|
tmp3_path = join(sub2_path, "tmp3")
|
|
self.link_path = join(sub2_path, "link")
|
|
t2_path = join(support.TESTFN, "TEST2")
|
|
tmp4_path = join(support.TESTFN, "TEST2", "tmp4")
|
|
broken_link_path = join(sub2_path, "broken_link")
|
|
|
|
# Create stuff.
|
|
os.makedirs(self.sub11_path)
|
|
os.makedirs(sub2_path)
|
|
os.makedirs(t2_path)
|
|
|
|
for path in tmp1_path, tmp2_path, tmp3_path, tmp4_path:
|
|
f = open(path, "w")
|
|
f.write("I'm " + path + " and proud of it. Blame test_os.\n")
|
|
f.close()
|
|
|
|
if support.can_symlink():
|
|
os.symlink(os.path.abspath(t2_path), self.link_path)
|
|
os.symlink('broken', broken_link_path, True)
|
|
self.sub2_tree = (sub2_path, ["link"], ["broken_link", "tmp3"])
|
|
else:
|
|
self.sub2_tree = (sub2_path, [], ["tmp3"])
|
|
|
|
def test_walk_topdown(self):
|
|
# Walk top-down.
|
|
all = list(os.walk(self.walk_path))
|
|
|
|
self.assertEqual(len(all), 4)
|
|
# We can't know which order SUB1 and SUB2 will appear in.
|
|
# Not flipped: TESTFN, SUB1, SUB11, SUB2
|
|
# flipped: TESTFN, SUB2, SUB1, SUB11
|
|
flipped = all[0][1][0] != "SUB1"
|
|
all[0][1].sort()
|
|
all[3 - 2 * flipped][-1].sort()
|
|
self.assertEqual(all[0], (self.walk_path, ["SUB1", "SUB2"], ["tmp1"]))
|
|
self.assertEqual(all[1 + flipped], (self.sub1_path, ["SUB11"], ["tmp2"]))
|
|
self.assertEqual(all[2 + flipped], (self.sub11_path, [], []))
|
|
self.assertEqual(all[3 - 2 * flipped], self.sub2_tree)
|
|
|
|
def test_walk_prune(self):
|
|
# Prune the search.
|
|
all = []
|
|
for root, dirs, files in self.walk(self.walk_path):
|
|
all.append((root, dirs, files))
|
|
# Don't descend into SUB1.
|
|
if 'SUB1' in dirs:
|
|
# Note that this also mutates the dirs we appended to all!
|
|
dirs.remove('SUB1')
|
|
|
|
self.assertEqual(len(all), 2)
|
|
self.assertEqual(all[0],
|
|
(self.walk_path, ["SUB2"], ["tmp1"]))
|
|
|
|
all[1][-1].sort()
|
|
self.assertEqual(all[1], self.sub2_tree)
|
|
|
|
def test_walk_bottom_up(self):
|
|
# Walk bottom-up.
|
|
all = list(self.walk(self.walk_path, topdown=False))
|
|
|
|
self.assertEqual(len(all), 4)
|
|
# We can't know which order SUB1 and SUB2 will appear in.
|
|
# Not flipped: SUB11, SUB1, SUB2, TESTFN
|
|
# flipped: SUB2, SUB11, SUB1, TESTFN
|
|
flipped = all[3][1][0] != "SUB1"
|
|
all[3][1].sort()
|
|
all[2 - 2 * flipped][-1].sort()
|
|
self.assertEqual(all[3],
|
|
(self.walk_path, ["SUB1", "SUB2"], ["tmp1"]))
|
|
self.assertEqual(all[flipped],
|
|
(self.sub11_path, [], []))
|
|
self.assertEqual(all[flipped + 1],
|
|
(self.sub1_path, ["SUB11"], ["tmp2"]))
|
|
self.assertEqual(all[2 - 2 * flipped],
|
|
self.sub2_tree)
|
|
|
|
def test_walk_symlink(self):
|
|
if not support.can_symlink():
|
|
self.skipTest("need symlink support")
|
|
|
|
# Walk, following symlinks.
|
|
walk_it = self.walk(self.walk_path, follow_symlinks=True)
|
|
for root, dirs, files in walk_it:
|
|
if root == self.link_path:
|
|
self.assertEqual(dirs, [])
|
|
self.assertEqual(files, ["tmp4"])
|
|
break
|
|
else:
|
|
self.fail("Didn't follow symlink with followlinks=True")
|
|
|
|
def tearDown(self):
|
|
# Tear everything down. This is a decent use for bottom-up on
|
|
# Windows, which doesn't have a recursive delete command. The
|
|
# (not so) subtlety is that rmdir will fail unless the dir's
|
|
# kids are removed first, so bottom up is essential.
|
|
for root, dirs, files in os.walk(support.TESTFN, topdown=False):
|
|
for name in files:
|
|
os.remove(os.path.join(root, name))
|
|
for name in dirs:
|
|
dirname = os.path.join(root, name)
|
|
if not os.path.islink(dirname):
|
|
os.rmdir(dirname)
|
|
else:
|
|
os.remove(dirname)
|
|
os.rmdir(support.TESTFN)
|
|
|
|
def test_walk_bad_dir(self):
|
|
# Walk top-down.
|
|
errors = []
|
|
walk_it = self.walk(self.walk_path, onerror=errors.append)
|
|
root, dirs, files = next(walk_it)
|
|
self.assertFalse(errors)
|
|
dir1 = dirs[0]
|
|
dir1new = dir1 + '.new'
|
|
os.rename(os.path.join(root, dir1), os.path.join(root, dir1new))
|
|
roots = [r for r, d, f in walk_it]
|
|
self.assertTrue(errors)
|
|
self.assertNotIn(os.path.join(root, dir1), roots)
|
|
self.assertNotIn(os.path.join(root, dir1new), roots)
|
|
for dir2 in dirs[1:]:
|
|
self.assertIn(os.path.join(root, dir2), roots)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fwalk'), "Test needs os.fwalk()")
|
|
class FwalkTests(WalkTests):
|
|
"""Tests for os.fwalk()."""
|
|
|
|
def walk(self, directory, **kwargs):
|
|
for root, dirs, files, root_fd in os.fwalk(directory, **kwargs):
|
|
yield (root, dirs, files)
|
|
|
|
|
|
def _compare_to_walk(self, walk_kwargs, fwalk_kwargs):
|
|
"""
|
|
compare with walk() results.
|
|
"""
|
|
walk_kwargs = walk_kwargs.copy()
|
|
fwalk_kwargs = fwalk_kwargs.copy()
|
|
for topdown, follow_symlinks in itertools.product((True, False), repeat=2):
|
|
walk_kwargs.update(topdown=topdown, followlinks=follow_symlinks)
|
|
fwalk_kwargs.update(topdown=topdown, follow_symlinks=follow_symlinks)
|
|
|
|
expected = {}
|
|
for root, dirs, files in os.walk(**walk_kwargs):
|
|
expected[root] = (set(dirs), set(files))
|
|
|
|
for root, dirs, files, rootfd in os.fwalk(**fwalk_kwargs):
|
|
self.assertIn(root, expected)
|
|
self.assertEqual(expected[root], (set(dirs), set(files)))
|
|
|
|
def test_compare_to_walk(self):
|
|
kwargs = {'top': support.TESTFN}
|
|
self._compare_to_walk(kwargs, kwargs)
|
|
|
|
def test_dir_fd(self):
|
|
try:
|
|
fd = os.open(".", os.O_RDONLY)
|
|
walk_kwargs = {'top': support.TESTFN}
|
|
fwalk_kwargs = walk_kwargs.copy()
|
|
fwalk_kwargs['dir_fd'] = fd
|
|
self._compare_to_walk(walk_kwargs, fwalk_kwargs)
|
|
finally:
|
|
os.close(fd)
|
|
|
|
def test_yields_correct_dir_fd(self):
|
|
# check returned file descriptors
|
|
for topdown, follow_symlinks in itertools.product((True, False), repeat=2):
|
|
args = support.TESTFN, topdown, None
|
|
for root, dirs, files, rootfd in os.fwalk(*args, follow_symlinks=follow_symlinks):
|
|
# check that the FD is valid
|
|
os.fstat(rootfd)
|
|
# redundant check
|
|
os.stat(rootfd)
|
|
# check that listdir() returns consistent information
|
|
self.assertEqual(set(os.listdir(rootfd)), set(dirs) | set(files))
|
|
|
|
def test_fd_leak(self):
|
|
# Since we're opening a lot of FDs, we must be careful to avoid leaks:
|
|
# we both check that calling fwalk() a large number of times doesn't
|
|
# yield EMFILE, and that the minimum allocated FD hasn't changed.
|
|
minfd = os.dup(1)
|
|
os.close(minfd)
|
|
for i in range(256):
|
|
for x in os.fwalk(support.TESTFN):
|
|
pass
|
|
newfd = os.dup(1)
|
|
self.addCleanup(os.close, newfd)
|
|
self.assertEqual(newfd, minfd)
|
|
|
|
def tearDown(self):
|
|
# cleanup
|
|
for root, dirs, files, rootfd in os.fwalk(support.TESTFN, topdown=False):
|
|
for name in files:
|
|
os.unlink(name, dir_fd=rootfd)
|
|
for name in dirs:
|
|
st = os.stat(name, dir_fd=rootfd, follow_symlinks=False)
|
|
if stat.S_ISDIR(st.st_mode):
|
|
os.rmdir(name, dir_fd=rootfd)
|
|
else:
|
|
os.unlink(name, dir_fd=rootfd)
|
|
os.rmdir(support.TESTFN)
|
|
|
|
|
|
class MakedirTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.mkdir(support.TESTFN)
|
|
|
|
def test_makedir(self):
|
|
base = support.TESTFN
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3')
|
|
os.makedirs(path) # Should work
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4')
|
|
os.makedirs(path)
|
|
|
|
# Try paths with a '.' in them
|
|
self.assertRaises(OSError, os.makedirs, os.curdir)
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4', 'dir5', os.curdir)
|
|
os.makedirs(path)
|
|
path = os.path.join(base, 'dir1', os.curdir, 'dir2', 'dir3', 'dir4',
|
|
'dir5', 'dir6')
|
|
os.makedirs(path)
|
|
|
|
def test_exist_ok_existing_directory(self):
|
|
path = os.path.join(support.TESTFN, 'dir1')
|
|
mode = 0o777
|
|
old_mask = os.umask(0o022)
|
|
os.makedirs(path, mode)
|
|
self.assertRaises(OSError, os.makedirs, path, mode)
|
|
self.assertRaises(OSError, os.makedirs, path, mode, exist_ok=False)
|
|
os.makedirs(path, 0o776, exist_ok=True)
|
|
os.makedirs(path, mode=mode, exist_ok=True)
|
|
os.umask(old_mask)
|
|
|
|
# Issue #25583: A drive root could raise PermissionError on Windows
|
|
os.makedirs(os.path.abspath('/'), exist_ok=True)
|
|
|
|
def test_exist_ok_s_isgid_directory(self):
|
|
path = os.path.join(support.TESTFN, 'dir1')
|
|
S_ISGID = stat.S_ISGID
|
|
mode = 0o777
|
|
old_mask = os.umask(0o022)
|
|
try:
|
|
existing_testfn_mode = stat.S_IMODE(
|
|
os.lstat(support.TESTFN).st_mode)
|
|
try:
|
|
os.chmod(support.TESTFN, existing_testfn_mode | S_ISGID)
|
|
except PermissionError:
|
|
raise unittest.SkipTest('Cannot set S_ISGID for dir.')
|
|
if (os.lstat(support.TESTFN).st_mode & S_ISGID != S_ISGID):
|
|
raise unittest.SkipTest('No support for S_ISGID dir mode.')
|
|
# The os should apply S_ISGID from the parent dir for us, but
|
|
# this test need not depend on that behavior. Be explicit.
|
|
os.makedirs(path, mode | S_ISGID)
|
|
# http://bugs.python.org/issue14992
|
|
# Should not fail when the bit is already set.
|
|
os.makedirs(path, mode, exist_ok=True)
|
|
# remove the bit.
|
|
os.chmod(path, stat.S_IMODE(os.lstat(path).st_mode) & ~S_ISGID)
|
|
# May work even when the bit is not already set when demanded.
|
|
os.makedirs(path, mode | S_ISGID, exist_ok=True)
|
|
finally:
|
|
os.umask(old_mask)
|
|
|
|
def test_exist_ok_existing_regular_file(self):
|
|
base = support.TESTFN
|
|
path = os.path.join(support.TESTFN, 'dir1')
|
|
f = open(path, 'w')
|
|
f.write('abc')
|
|
f.close()
|
|
self.assertRaises(OSError, os.makedirs, path)
|
|
self.assertRaises(OSError, os.makedirs, path, exist_ok=False)
|
|
self.assertRaises(OSError, os.makedirs, path, exist_ok=True)
|
|
os.remove(path)
|
|
|
|
def tearDown(self):
|
|
path = os.path.join(support.TESTFN, 'dir1', 'dir2', 'dir3',
|
|
'dir4', 'dir5', 'dir6')
|
|
# If the tests failed, the bottom-most directory ('../dir6')
|
|
# may not have been created, so we look for the outermost directory
|
|
# that exists.
|
|
while not os.path.exists(path) and path != support.TESTFN:
|
|
path = os.path.dirname(path)
|
|
|
|
os.removedirs(path)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'chown'), "Test needs chown")
|
|
class ChownFileTests(unittest.TestCase):
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
os.mkdir(support.TESTFN)
|
|
|
|
def test_chown_uid_gid_arguments_must_be_index(self):
|
|
stat = os.stat(support.TESTFN)
|
|
uid = stat.st_uid
|
|
gid = stat.st_gid
|
|
for value in (-1.0, -1j, decimal.Decimal(-1), fractions.Fraction(-2, 2)):
|
|
self.assertRaises(TypeError, os.chown, support.TESTFN, value, gid)
|
|
self.assertRaises(TypeError, os.chown, support.TESTFN, uid, value)
|
|
self.assertIsNone(os.chown(support.TESTFN, uid, gid))
|
|
self.assertIsNone(os.chown(support.TESTFN, -1, -1))
|
|
|
|
@unittest.skipUnless(len(groups) > 1, "test needs more than one group")
|
|
def test_chown(self):
|
|
gid_1, gid_2 = groups[:2]
|
|
uid = os.stat(support.TESTFN).st_uid
|
|
os.chown(support.TESTFN, uid, gid_1)
|
|
gid = os.stat(support.TESTFN).st_gid
|
|
self.assertEqual(gid, gid_1)
|
|
os.chown(support.TESTFN, uid, gid_2)
|
|
gid = os.stat(support.TESTFN).st_gid
|
|
self.assertEqual(gid, gid_2)
|
|
|
|
@unittest.skipUnless(root_in_posix and len(all_users) > 1,
|
|
"test needs root privilege and more than one user")
|
|
def test_chown_with_root(self):
|
|
uid_1, uid_2 = all_users[:2]
|
|
gid = os.stat(support.TESTFN).st_gid
|
|
os.chown(support.TESTFN, uid_1, gid)
|
|
uid = os.stat(support.TESTFN).st_uid
|
|
self.assertEqual(uid, uid_1)
|
|
os.chown(support.TESTFN, uid_2, gid)
|
|
uid = os.stat(support.TESTFN).st_uid
|
|
self.assertEqual(uid, uid_2)
|
|
|
|
@unittest.skipUnless(not root_in_posix and len(all_users) > 1,
|
|
"test needs non-root account and more than one user")
|
|
def test_chown_without_permission(self):
|
|
uid_1, uid_2 = all_users[:2]
|
|
gid = os.stat(support.TESTFN).st_gid
|
|
with self.assertRaises(PermissionError):
|
|
os.chown(support.TESTFN, uid_1, gid)
|
|
os.chown(support.TESTFN, uid_2, gid)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
os.rmdir(support.TESTFN)
|
|
|
|
|
|
class RemoveDirsTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.makedirs(support.TESTFN)
|
|
|
|
def tearDown(self):
|
|
support.rmtree(support.TESTFN)
|
|
|
|
def test_remove_all(self):
|
|
dira = os.path.join(support.TESTFN, 'dira')
|
|
os.mkdir(dira)
|
|
dirb = os.path.join(dira, 'dirb')
|
|
os.mkdir(dirb)
|
|
os.removedirs(dirb)
|
|
self.assertFalse(os.path.exists(dirb))
|
|
self.assertFalse(os.path.exists(dira))
|
|
self.assertFalse(os.path.exists(support.TESTFN))
|
|
|
|
def test_remove_partial(self):
|
|
dira = os.path.join(support.TESTFN, 'dira')
|
|
os.mkdir(dira)
|
|
dirb = os.path.join(dira, 'dirb')
|
|
os.mkdir(dirb)
|
|
with open(os.path.join(dira, 'file.txt'), 'w') as f:
|
|
f.write('text')
|
|
os.removedirs(dirb)
|
|
self.assertFalse(os.path.exists(dirb))
|
|
self.assertTrue(os.path.exists(dira))
|
|
self.assertTrue(os.path.exists(support.TESTFN))
|
|
|
|
def test_remove_nothing(self):
|
|
dira = os.path.join(support.TESTFN, 'dira')
|
|
os.mkdir(dira)
|
|
dirb = os.path.join(dira, 'dirb')
|
|
os.mkdir(dirb)
|
|
with open(os.path.join(dirb, 'file.txt'), 'w') as f:
|
|
f.write('text')
|
|
with self.assertRaises(OSError):
|
|
os.removedirs(dirb)
|
|
self.assertTrue(os.path.exists(dirb))
|
|
self.assertTrue(os.path.exists(dira))
|
|
self.assertTrue(os.path.exists(support.TESTFN))
|
|
|
|
|
|
class DevNullTests(unittest.TestCase):
|
|
def test_devnull(self):
|
|
with open(os.devnull, 'wb') as f:
|
|
f.write(b'hello')
|
|
f.close()
|
|
with open(os.devnull, 'rb') as f:
|
|
self.assertEqual(f.read(), b'')
|
|
|
|
|
|
class URandomTests(unittest.TestCase):
|
|
def test_urandom_length(self):
|
|
self.assertEqual(len(os.urandom(0)), 0)
|
|
self.assertEqual(len(os.urandom(1)), 1)
|
|
self.assertEqual(len(os.urandom(10)), 10)
|
|
self.assertEqual(len(os.urandom(100)), 100)
|
|
self.assertEqual(len(os.urandom(1000)), 1000)
|
|
|
|
def test_urandom_value(self):
|
|
data1 = os.urandom(16)
|
|
data2 = os.urandom(16)
|
|
self.assertNotEqual(data1, data2)
|
|
|
|
def get_urandom_subprocess(self, count):
|
|
code = '\n'.join((
|
|
'import os, sys',
|
|
'data = os.urandom(%s)' % count,
|
|
'sys.stdout.buffer.write(data)',
|
|
'sys.stdout.buffer.flush()'))
|
|
out = assert_python_ok('-c', code)
|
|
stdout = out[1]
|
|
self.assertEqual(len(stdout), 16)
|
|
return stdout
|
|
|
|
def test_urandom_subprocess(self):
|
|
data1 = self.get_urandom_subprocess(16)
|
|
data2 = self.get_urandom_subprocess(16)
|
|
self.assertNotEqual(data1, data2)
|
|
|
|
|
|
# os.urandom() doesn't use a file descriptor when it is implemented with the
|
|
# getentropy() function, the getrandom() function or the getrandom() syscall
|
|
OS_URANDOM_DONT_USE_FD = (
|
|
sysconfig.get_config_var('HAVE_GETENTROPY') == 1
|
|
or sysconfig.get_config_var('HAVE_GETRANDOM') == 1
|
|
or sysconfig.get_config_var('HAVE_GETRANDOM_SYSCALL') == 1)
|
|
|
|
@unittest.skipIf(OS_URANDOM_DONT_USE_FD ,
|
|
"os.random() does not use a file descriptor")
|
|
class URandomFDTests(unittest.TestCase):
|
|
@unittest.skipUnless(resource, "test requires the resource module")
|
|
def test_urandom_failure(self):
|
|
# Check urandom() failing when it is not able to open /dev/random.
|
|
# We spawn a new process to make the test more robust (if getrlimit()
|
|
# failed to restore the file descriptor limit after this, the whole
|
|
# test suite would crash; this actually happened on the OS X Tiger
|
|
# buildbot).
|
|
code = """if 1:
|
|
import errno
|
|
import os
|
|
import resource
|
|
|
|
soft_limit, hard_limit = resource.getrlimit(resource.RLIMIT_NOFILE)
|
|
resource.setrlimit(resource.RLIMIT_NOFILE, (1, hard_limit))
|
|
try:
|
|
os.urandom(16)
|
|
except OSError as e:
|
|
assert e.errno == errno.EMFILE, e.errno
|
|
else:
|
|
raise AssertionError("OSError not raised")
|
|
"""
|
|
assert_python_ok('-c', code)
|
|
|
|
def test_urandom_fd_closed(self):
|
|
# Issue #21207: urandom() should reopen its fd to /dev/urandom if
|
|
# closed.
|
|
code = """if 1:
|
|
import os
|
|
import sys
|
|
import test.support
|
|
os.urandom(4)
|
|
with test.support.SuppressCrashReport():
|
|
os.closerange(3, 256)
|
|
sys.stdout.buffer.write(os.urandom(4))
|
|
"""
|
|
rc, out, err = assert_python_ok('-Sc', code)
|
|
|
|
def test_urandom_fd_reopened(self):
|
|
# Issue #21207: urandom() should detect its fd to /dev/urandom
|
|
# changed to something else, and reopen it.
|
|
with open(support.TESTFN, 'wb') as f:
|
|
f.write(b"x" * 256)
|
|
self.addCleanup(os.unlink, support.TESTFN)
|
|
code = """if 1:
|
|
import os
|
|
import sys
|
|
import test.support
|
|
os.urandom(4)
|
|
with test.support.SuppressCrashReport():
|
|
for fd in range(3, 256):
|
|
try:
|
|
os.close(fd)
|
|
except OSError:
|
|
pass
|
|
else:
|
|
# Found the urandom fd (XXX hopefully)
|
|
break
|
|
os.closerange(3, 256)
|
|
with open({TESTFN!r}, 'rb') as f:
|
|
os.dup2(f.fileno(), fd)
|
|
sys.stdout.buffer.write(os.urandom(4))
|
|
sys.stdout.buffer.write(os.urandom(4))
|
|
""".format(TESTFN=support.TESTFN)
|
|
rc, out, err = assert_python_ok('-Sc', code)
|
|
self.assertEqual(len(out), 8)
|
|
self.assertNotEqual(out[0:4], out[4:8])
|
|
rc, out2, err2 = assert_python_ok('-Sc', code)
|
|
self.assertEqual(len(out2), 8)
|
|
self.assertNotEqual(out2, out)
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def _execvpe_mockup(defpath=None):
|
|
"""
|
|
Stubs out execv and execve functions when used as context manager.
|
|
Records exec calls. The mock execv and execve functions always raise an
|
|
exception as they would normally never return.
|
|
"""
|
|
# A list of tuples containing (function name, first arg, args)
|
|
# of calls to execv or execve that have been made.
|
|
calls = []
|
|
|
|
def mock_execv(name, *args):
|
|
calls.append(('execv', name, args))
|
|
raise RuntimeError("execv called")
|
|
|
|
def mock_execve(name, *args):
|
|
calls.append(('execve', name, args))
|
|
raise OSError(errno.ENOTDIR, "execve called")
|
|
|
|
try:
|
|
orig_execv = os.execv
|
|
orig_execve = os.execve
|
|
orig_defpath = os.defpath
|
|
os.execv = mock_execv
|
|
os.execve = mock_execve
|
|
if defpath is not None:
|
|
os.defpath = defpath
|
|
yield calls
|
|
finally:
|
|
os.execv = orig_execv
|
|
os.execve = orig_execve
|
|
os.defpath = orig_defpath
|
|
|
|
class ExecTests(unittest.TestCase):
|
|
@unittest.skipIf(USING_LINUXTHREADS,
|
|
"avoid triggering a linuxthreads bug: see issue #4970")
|
|
def test_execvpe_with_bad_program(self):
|
|
self.assertRaises(OSError, os.execvpe, 'no such app-',
|
|
['no such app-'], None)
|
|
|
|
def test_execvpe_with_bad_arglist(self):
|
|
self.assertRaises(ValueError, os.execvpe, 'notepad', [], None)
|
|
|
|
@unittest.skipUnless(hasattr(os, '_execvpe'),
|
|
"No internal os._execvpe function to test.")
|
|
def _test_internal_execvpe(self, test_type):
|
|
program_path = os.sep + 'absolutepath'
|
|
if test_type is bytes:
|
|
program = b'executable'
|
|
fullpath = os.path.join(os.fsencode(program_path), program)
|
|
native_fullpath = fullpath
|
|
arguments = [b'progname', 'arg1', 'arg2']
|
|
else:
|
|
program = 'executable'
|
|
arguments = ['progname', 'arg1', 'arg2']
|
|
fullpath = os.path.join(program_path, program)
|
|
if os.name != "nt":
|
|
native_fullpath = os.fsencode(fullpath)
|
|
else:
|
|
native_fullpath = fullpath
|
|
env = {'spam': 'beans'}
|
|
|
|
# test os._execvpe() with an absolute path
|
|
with _execvpe_mockup() as calls:
|
|
self.assertRaises(RuntimeError,
|
|
os._execvpe, fullpath, arguments)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertEqual(calls[0], ('execv', fullpath, (arguments,)))
|
|
|
|
# test os._execvpe() with a relative path:
|
|
# os.get_exec_path() returns defpath
|
|
with _execvpe_mockup(defpath=program_path) as calls:
|
|
self.assertRaises(OSError,
|
|
os._execvpe, program, arguments, env=env)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertSequenceEqual(calls[0],
|
|
('execve', native_fullpath, (arguments, env)))
|
|
|
|
# test os._execvpe() with a relative path:
|
|
# os.get_exec_path() reads the 'PATH' variable
|
|
with _execvpe_mockup() as calls:
|
|
env_path = env.copy()
|
|
if test_type is bytes:
|
|
env_path[b'PATH'] = program_path
|
|
else:
|
|
env_path['PATH'] = program_path
|
|
self.assertRaises(OSError,
|
|
os._execvpe, program, arguments, env=env_path)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertSequenceEqual(calls[0],
|
|
('execve', native_fullpath, (arguments, env_path)))
|
|
|
|
def test_internal_execvpe_str(self):
|
|
self._test_internal_execvpe(str)
|
|
if os.name != "nt":
|
|
self._test_internal_execvpe(bytes)
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32ErrorTests(unittest.TestCase):
|
|
def test_rename(self):
|
|
self.assertRaises(OSError, os.rename, support.TESTFN, support.TESTFN+".bak")
|
|
|
|
def test_remove(self):
|
|
self.assertRaises(OSError, os.remove, support.TESTFN)
|
|
|
|
def test_chdir(self):
|
|
self.assertRaises(OSError, os.chdir, support.TESTFN)
|
|
|
|
def test_mkdir(self):
|
|
f = open(support.TESTFN, "w")
|
|
try:
|
|
self.assertRaises(OSError, os.mkdir, support.TESTFN)
|
|
finally:
|
|
f.close()
|
|
os.unlink(support.TESTFN)
|
|
|
|
def test_utime(self):
|
|
self.assertRaises(OSError, os.utime, support.TESTFN, None)
|
|
|
|
def test_chmod(self):
|
|
self.assertRaises(OSError, os.chmod, support.TESTFN, 0)
|
|
|
|
class TestInvalidFD(unittest.TestCase):
|
|
singles = ["fchdir", "dup", "fdopen", "fdatasync", "fstat",
|
|
"fstatvfs", "fsync", "tcgetpgrp", "ttyname"]
|
|
#singles.append("close")
|
|
#We omit close because it doesn'r raise an exception on some platforms
|
|
def get_single(f):
|
|
def helper(self):
|
|
if hasattr(os, f):
|
|
self.check(getattr(os, f))
|
|
return helper
|
|
for f in singles:
|
|
locals()["test_"+f] = get_single(f)
|
|
|
|
def check(self, f, *args):
|
|
try:
|
|
f(support.make_bad_fd(), *args)
|
|
except OSError as e:
|
|
self.assertEqual(e.errno, errno.EBADF)
|
|
else:
|
|
self.fail("%r didn't raise an OSError with a bad file descriptor"
|
|
% f)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'isatty'), 'test needs os.isatty()')
|
|
def test_isatty(self):
|
|
self.assertEqual(os.isatty(support.make_bad_fd()), False)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'closerange'), 'test needs os.closerange()')
|
|
def test_closerange(self):
|
|
fd = support.make_bad_fd()
|
|
# Make sure none of the descriptors we are about to close are
|
|
# currently valid (issue 6542).
|
|
for i in range(10):
|
|
try: os.fstat(fd+i)
|
|
except OSError:
|
|
pass
|
|
else:
|
|
break
|
|
if i < 2:
|
|
raise unittest.SkipTest(
|
|
"Unable to acquire a range of invalid file descriptors")
|
|
self.assertEqual(os.closerange(fd, fd + i-1), None)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'dup2'), 'test needs os.dup2()')
|
|
def test_dup2(self):
|
|
self.check(os.dup2, 20)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fchmod'), 'test needs os.fchmod()')
|
|
def test_fchmod(self):
|
|
self.check(os.fchmod, 0)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fchown'), 'test needs os.fchown()')
|
|
def test_fchown(self):
|
|
self.check(os.fchown, -1, -1)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fpathconf'), 'test needs os.fpathconf()')
|
|
def test_fpathconf(self):
|
|
self.check(os.pathconf, "PC_NAME_MAX")
|
|
self.check(os.fpathconf, "PC_NAME_MAX")
|
|
|
|
@unittest.skipUnless(hasattr(os, 'ftruncate'), 'test needs os.ftruncate()')
|
|
def test_ftruncate(self):
|
|
self.check(os.truncate, 0)
|
|
self.check(os.ftruncate, 0)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'lseek'), 'test needs os.lseek()')
|
|
def test_lseek(self):
|
|
self.check(os.lseek, 0, 0)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'read'), 'test needs os.read()')
|
|
def test_read(self):
|
|
self.check(os.read, 1)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'readv'), 'test needs os.readv()')
|
|
def test_readv(self):
|
|
buf = bytearray(10)
|
|
self.check(os.readv, [buf])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'tcsetpgrp'), 'test needs os.tcsetpgrp()')
|
|
def test_tcsetpgrpt(self):
|
|
self.check(os.tcsetpgrp, 0)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'write'), 'test needs os.write()')
|
|
def test_write(self):
|
|
self.check(os.write, b" ")
|
|
|
|
@unittest.skipUnless(hasattr(os, 'writev'), 'test needs os.writev()')
|
|
def test_writev(self):
|
|
self.check(os.writev, [b'abc'])
|
|
|
|
def test_inheritable(self):
|
|
self.check(os.get_inheritable)
|
|
self.check(os.set_inheritable, True)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'get_blocking'),
|
|
'needs os.get_blocking() and os.set_blocking()')
|
|
def test_blocking(self):
|
|
self.check(os.get_blocking)
|
|
self.check(os.set_blocking, True)
|
|
|
|
|
|
class LinkTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.file1 = support.TESTFN
|
|
self.file2 = os.path.join(support.TESTFN + "2")
|
|
|
|
def tearDown(self):
|
|
for file in (self.file1, self.file2):
|
|
if os.path.exists(file):
|
|
os.unlink(file)
|
|
|
|
def _test_link(self, file1, file2):
|
|
with open(file1, "w") as f1:
|
|
f1.write("test")
|
|
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
os.link(file1, file2)
|
|
with open(file1, "r") as f1, open(file2, "r") as f2:
|
|
self.assertTrue(os.path.sameopenfile(f1.fileno(), f2.fileno()))
|
|
|
|
def test_link(self):
|
|
self._test_link(self.file1, self.file2)
|
|
|
|
def test_link_bytes(self):
|
|
self._test_link(bytes(self.file1, sys.getfilesystemencoding()),
|
|
bytes(self.file2, sys.getfilesystemencoding()))
|
|
|
|
def test_unicode_name(self):
|
|
try:
|
|
os.fsencode("\xf1")
|
|
except UnicodeError:
|
|
raise unittest.SkipTest("Unable to encode for this platform.")
|
|
|
|
self.file1 += "\xf1"
|
|
self.file2 = self.file1 + "2"
|
|
self._test_link(self.file1, self.file2)
|
|
|
|
@unittest.skipIf(sys.platform == "win32", "Posix specific tests")
|
|
class PosixUidGidTests(unittest.TestCase):
|
|
@unittest.skipUnless(hasattr(os, 'setuid'), 'test needs os.setuid()')
|
|
def test_setuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(OSError, os.setuid, 0)
|
|
self.assertRaises(OverflowError, os.setuid, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setgid'), 'test needs os.setgid()')
|
|
def test_setgid(self):
|
|
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
|
|
self.assertRaises(OSError, os.setgid, 0)
|
|
self.assertRaises(OverflowError, os.setgid, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'seteuid'), 'test needs os.seteuid()')
|
|
def test_seteuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(OSError, os.seteuid, 0)
|
|
self.assertRaises(OverflowError, os.seteuid, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setegid'), 'test needs os.setegid()')
|
|
def test_setegid(self):
|
|
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
|
|
self.assertRaises(OSError, os.setegid, 0)
|
|
self.assertRaises(OverflowError, os.setegid, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setreuid'), 'test needs os.setreuid()')
|
|
def test_setreuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(OSError, os.setreuid, 0, 0)
|
|
self.assertRaises(OverflowError, os.setreuid, 1<<32, 0)
|
|
self.assertRaises(OverflowError, os.setreuid, 0, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setreuid'), 'test needs os.setreuid()')
|
|
def test_setreuid_neg1(self):
|
|
# Needs to accept -1. We run this in a subprocess to avoid
|
|
# altering the test runner's process state (issue8045).
|
|
subprocess.check_call([
|
|
sys.executable, '-c',
|
|
'import os,sys;os.setreuid(-1,-1);sys.exit(0)'])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setregid'), 'test needs os.setregid()')
|
|
def test_setregid(self):
|
|
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
|
|
self.assertRaises(OSError, os.setregid, 0, 0)
|
|
self.assertRaises(OverflowError, os.setregid, 1<<32, 0)
|
|
self.assertRaises(OverflowError, os.setregid, 0, 1<<32)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setregid'), 'test needs os.setregid()')
|
|
def test_setregid_neg1(self):
|
|
# Needs to accept -1. We run this in a subprocess to avoid
|
|
# altering the test runner's process state (issue8045).
|
|
subprocess.check_call([
|
|
sys.executable, '-c',
|
|
'import os,sys;os.setregid(-1,-1);sys.exit(0)'])
|
|
|
|
@unittest.skipIf(sys.platform == "win32", "Posix specific tests")
|
|
class Pep383Tests(unittest.TestCase):
|
|
def setUp(self):
|
|
if support.TESTFN_UNENCODABLE:
|
|
self.dir = support.TESTFN_UNENCODABLE
|
|
elif support.TESTFN_NONASCII:
|
|
self.dir = support.TESTFN_NONASCII
|
|
else:
|
|
self.dir = support.TESTFN
|
|
self.bdir = os.fsencode(self.dir)
|
|
|
|
bytesfn = []
|
|
def add_filename(fn):
|
|
try:
|
|
fn = os.fsencode(fn)
|
|
except UnicodeEncodeError:
|
|
return
|
|
bytesfn.append(fn)
|
|
add_filename(support.TESTFN_UNICODE)
|
|
if support.TESTFN_UNENCODABLE:
|
|
add_filename(support.TESTFN_UNENCODABLE)
|
|
if support.TESTFN_NONASCII:
|
|
add_filename(support.TESTFN_NONASCII)
|
|
if not bytesfn:
|
|
self.skipTest("couldn't create any non-ascii filename")
|
|
|
|
self.unicodefn = set()
|
|
os.mkdir(self.dir)
|
|
try:
|
|
for fn in bytesfn:
|
|
support.create_empty_file(os.path.join(self.bdir, fn))
|
|
fn = os.fsdecode(fn)
|
|
if fn in self.unicodefn:
|
|
raise ValueError("duplicate filename")
|
|
self.unicodefn.add(fn)
|
|
except:
|
|
shutil.rmtree(self.dir)
|
|
raise
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.dir)
|
|
|
|
def test_listdir(self):
|
|
expected = self.unicodefn
|
|
found = set(os.listdir(self.dir))
|
|
self.assertEqual(found, expected)
|
|
# test listdir without arguments
|
|
current_directory = os.getcwd()
|
|
try:
|
|
os.chdir(os.sep)
|
|
self.assertEqual(set(os.listdir()), set(os.listdir(os.sep)))
|
|
finally:
|
|
os.chdir(current_directory)
|
|
|
|
def test_open(self):
|
|
for fn in self.unicodefn:
|
|
f = open(os.path.join(self.dir, fn), 'rb')
|
|
f.close()
|
|
|
|
@unittest.skipUnless(hasattr(os, 'statvfs'),
|
|
"need os.statvfs()")
|
|
def test_statvfs(self):
|
|
# issue #9645
|
|
for fn in self.unicodefn:
|
|
# should not fail with file not found error
|
|
fullname = os.path.join(self.dir, fn)
|
|
os.statvfs(fullname)
|
|
|
|
def test_stat(self):
|
|
for fn in self.unicodefn:
|
|
os.stat(os.path.join(self.dir, fn))
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32KillTests(unittest.TestCase):
|
|
def _kill(self, sig):
|
|
# Start sys.executable as a subprocess and communicate from the
|
|
# subprocess to the parent that the interpreter is ready. When it
|
|
# becomes ready, send *sig* via os.kill to the subprocess and check
|
|
# that the return code is equal to *sig*.
|
|
import ctypes
|
|
from ctypes import wintypes
|
|
import msvcrt
|
|
|
|
# Since we can't access the contents of the process' stdout until the
|
|
# process has exited, use PeekNamedPipe to see what's inside stdout
|
|
# without waiting. This is done so we can tell that the interpreter
|
|
# is started and running at a point where it could handle a signal.
|
|
PeekNamedPipe = ctypes.windll.kernel32.PeekNamedPipe
|
|
PeekNamedPipe.restype = wintypes.BOOL
|
|
PeekNamedPipe.argtypes = (wintypes.HANDLE, # Pipe handle
|
|
ctypes.POINTER(ctypes.c_char), # stdout buf
|
|
wintypes.DWORD, # Buffer size
|
|
ctypes.POINTER(wintypes.DWORD), # bytes read
|
|
ctypes.POINTER(wintypes.DWORD), # bytes avail
|
|
ctypes.POINTER(wintypes.DWORD)) # bytes left
|
|
msg = "running"
|
|
proc = subprocess.Popen([sys.executable, "-c",
|
|
"import sys;"
|
|
"sys.stdout.write('{}');"
|
|
"sys.stdout.flush();"
|
|
"input()".format(msg)],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
stdin=subprocess.PIPE)
|
|
self.addCleanup(proc.stdout.close)
|
|
self.addCleanup(proc.stderr.close)
|
|
self.addCleanup(proc.stdin.close)
|
|
|
|
count, max = 0, 100
|
|
while count < max and proc.poll() is None:
|
|
# Create a string buffer to store the result of stdout from the pipe
|
|
buf = ctypes.create_string_buffer(len(msg))
|
|
# Obtain the text currently in proc.stdout
|
|
# Bytes read/avail/left are left as NULL and unused
|
|
rslt = PeekNamedPipe(msvcrt.get_osfhandle(proc.stdout.fileno()),
|
|
buf, ctypes.sizeof(buf), None, None, None)
|
|
self.assertNotEqual(rslt, 0, "PeekNamedPipe failed")
|
|
if buf.value:
|
|
self.assertEqual(msg, buf.value.decode())
|
|
break
|
|
time.sleep(0.1)
|
|
count += 1
|
|
else:
|
|
self.fail("Did not receive communication from the subprocess")
|
|
|
|
os.kill(proc.pid, sig)
|
|
self.assertEqual(proc.wait(), sig)
|
|
|
|
def test_kill_sigterm(self):
|
|
# SIGTERM doesn't mean anything special, but make sure it works
|
|
self._kill(signal.SIGTERM)
|
|
|
|
def test_kill_int(self):
|
|
# os.kill on Windows can take an int which gets set as the exit code
|
|
self._kill(100)
|
|
|
|
def _kill_with_event(self, event, name):
|
|
tagname = "test_os_%s" % uuid.uuid1()
|
|
m = mmap.mmap(-1, 1, tagname)
|
|
m[0] = 0
|
|
# Run a script which has console control handling enabled.
|
|
proc = subprocess.Popen([sys.executable,
|
|
os.path.join(os.path.dirname(__file__),
|
|
"win_console_handler.py"), tagname],
|
|
creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
|
|
# Let the interpreter startup before we send signals. See #3137.
|
|
count, max = 0, 100
|
|
while count < max and proc.poll() is None:
|
|
if m[0] == 1:
|
|
break
|
|
time.sleep(0.1)
|
|
count += 1
|
|
else:
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
os.kill(proc.pid, signal.SIGINT)
|
|
self.fail("Subprocess didn't finish initialization")
|
|
os.kill(proc.pid, event)
|
|
# proc.send_signal(event) could also be done here.
|
|
# Allow time for the signal to be passed and the process to exit.
|
|
time.sleep(0.5)
|
|
if not proc.poll():
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
os.kill(proc.pid, signal.SIGINT)
|
|
self.fail("subprocess did not stop on {}".format(name))
|
|
|
|
@unittest.skip("subprocesses aren't inheriting Ctrl+C property")
|
|
def test_CTRL_C_EVENT(self):
|
|
from ctypes import wintypes
|
|
import ctypes
|
|
|
|
# Make a NULL value by creating a pointer with no argument.
|
|
NULL = ctypes.POINTER(ctypes.c_int)()
|
|
SetConsoleCtrlHandler = ctypes.windll.kernel32.SetConsoleCtrlHandler
|
|
SetConsoleCtrlHandler.argtypes = (ctypes.POINTER(ctypes.c_int),
|
|
wintypes.BOOL)
|
|
SetConsoleCtrlHandler.restype = wintypes.BOOL
|
|
|
|
# Calling this with NULL and FALSE causes the calling process to
|
|
# handle Ctrl+C, rather than ignore it. This property is inherited
|
|
# by subprocesses.
|
|
SetConsoleCtrlHandler(NULL, 0)
|
|
|
|
self._kill_with_event(signal.CTRL_C_EVENT, "CTRL_C_EVENT")
|
|
|
|
def test_CTRL_BREAK_EVENT(self):
|
|
self._kill_with_event(signal.CTRL_BREAK_EVENT, "CTRL_BREAK_EVENT")
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32ListdirTests(unittest.TestCase):
|
|
"""Test listdir on Windows."""
|
|
|
|
def setUp(self):
|
|
self.created_paths = []
|
|
for i in range(2):
|
|
dir_name = 'SUB%d' % i
|
|
dir_path = os.path.join(support.TESTFN, dir_name)
|
|
file_name = 'FILE%d' % i
|
|
file_path = os.path.join(support.TESTFN, file_name)
|
|
os.makedirs(dir_path)
|
|
with open(file_path, 'w') as f:
|
|
f.write("I'm %s and proud of it. Blame test_os.\n" % file_path)
|
|
self.created_paths.extend([dir_name, file_name])
|
|
self.created_paths.sort()
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(support.TESTFN)
|
|
|
|
def test_listdir_no_extended_path(self):
|
|
"""Test when the path is not an "extended" path."""
|
|
# unicode
|
|
self.assertEqual(
|
|
sorted(os.listdir(support.TESTFN)),
|
|
self.created_paths)
|
|
# bytes
|
|
self.assertEqual(
|
|
sorted(os.listdir(os.fsencode(support.TESTFN))),
|
|
[os.fsencode(path) for path in self.created_paths])
|
|
|
|
def test_listdir_extended_path(self):
|
|
"""Test when the path starts with '\\\\?\\'."""
|
|
# See: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath
|
|
# unicode
|
|
path = '\\\\?\\' + os.path.abspath(support.TESTFN)
|
|
self.assertEqual(
|
|
sorted(os.listdir(path)),
|
|
self.created_paths)
|
|
# bytes
|
|
path = b'\\\\?\\' + os.fsencode(os.path.abspath(support.TESTFN))
|
|
self.assertEqual(
|
|
sorted(os.listdir(path)),
|
|
[os.fsencode(path) for path in self.created_paths])
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
@support.skip_unless_symlink
|
|
class Win32SymlinkTests(unittest.TestCase):
|
|
filelink = 'filelinktest'
|
|
filelink_target = os.path.abspath(__file__)
|
|
dirlink = 'dirlinktest'
|
|
dirlink_target = os.path.dirname(filelink_target)
|
|
missing_link = 'missing link'
|
|
|
|
def setUp(self):
|
|
assert os.path.exists(self.dirlink_target)
|
|
assert os.path.exists(self.filelink_target)
|
|
assert not os.path.exists(self.dirlink)
|
|
assert not os.path.exists(self.filelink)
|
|
assert not os.path.exists(self.missing_link)
|
|
|
|
def tearDown(self):
|
|
if os.path.exists(self.filelink):
|
|
os.remove(self.filelink)
|
|
if os.path.exists(self.dirlink):
|
|
os.rmdir(self.dirlink)
|
|
if os.path.lexists(self.missing_link):
|
|
os.remove(self.missing_link)
|
|
|
|
def test_directory_link(self):
|
|
os.symlink(self.dirlink_target, self.dirlink)
|
|
self.assertTrue(os.path.exists(self.dirlink))
|
|
self.assertTrue(os.path.isdir(self.dirlink))
|
|
self.assertTrue(os.path.islink(self.dirlink))
|
|
self.check_stat(self.dirlink, self.dirlink_target)
|
|
|
|
def test_file_link(self):
|
|
os.symlink(self.filelink_target, self.filelink)
|
|
self.assertTrue(os.path.exists(self.filelink))
|
|
self.assertTrue(os.path.isfile(self.filelink))
|
|
self.assertTrue(os.path.islink(self.filelink))
|
|
self.check_stat(self.filelink, self.filelink_target)
|
|
|
|
def _create_missing_dir_link(self):
|
|
'Create a "directory" link to a non-existent target'
|
|
linkname = self.missing_link
|
|
if os.path.lexists(linkname):
|
|
os.remove(linkname)
|
|
target = r'c:\\target does not exist.29r3c740'
|
|
assert not os.path.exists(target)
|
|
target_is_dir = True
|
|
os.symlink(target, linkname, target_is_dir)
|
|
|
|
def test_remove_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# For compatibility with Unix, os.remove will check the
|
|
# directory status and call RemoveDirectory if the symlink
|
|
# was created with target_is_dir==True.
|
|
os.remove(self.missing_link)
|
|
|
|
@unittest.skip("currently fails; consider for improvement")
|
|
def test_isdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# consider having isdir return true for directory links
|
|
self.assertTrue(os.path.isdir(self.missing_link))
|
|
|
|
@unittest.skip("currently fails; consider for improvement")
|
|
def test_rmdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# consider allowing rmdir to remove directory links
|
|
os.rmdir(self.missing_link)
|
|
|
|
def check_stat(self, link, target):
|
|
self.assertEqual(os.stat(link), os.stat(target))
|
|
self.assertNotEqual(os.lstat(link), os.stat(link))
|
|
|
|
bytes_link = os.fsencode(link)
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
self.assertEqual(os.stat(bytes_link), os.stat(target))
|
|
self.assertNotEqual(os.lstat(bytes_link), os.stat(bytes_link))
|
|
|
|
def test_12084(self):
|
|
level1 = os.path.abspath(support.TESTFN)
|
|
level2 = os.path.join(level1, "level2")
|
|
level3 = os.path.join(level2, "level3")
|
|
try:
|
|
os.mkdir(level1)
|
|
os.mkdir(level2)
|
|
os.mkdir(level3)
|
|
|
|
file1 = os.path.abspath(os.path.join(level1, "file1"))
|
|
|
|
with open(file1, "w") as f:
|
|
f.write("file1")
|
|
|
|
orig_dir = os.getcwd()
|
|
try:
|
|
os.chdir(level2)
|
|
link = os.path.join(level2, "link")
|
|
os.symlink(os.path.relpath(file1), "link")
|
|
self.assertIn("link", os.listdir(os.getcwd()))
|
|
|
|
# Check os.stat calls from the same dir as the link
|
|
self.assertEqual(os.stat(file1), os.stat("link"))
|
|
|
|
# Check os.stat calls from a dir below the link
|
|
os.chdir(level1)
|
|
self.assertEqual(os.stat(file1),
|
|
os.stat(os.path.relpath(link)))
|
|
|
|
# Check os.stat calls from a dir above the link
|
|
os.chdir(level3)
|
|
self.assertEqual(os.stat(file1),
|
|
os.stat(os.path.relpath(link)))
|
|
finally:
|
|
os.chdir(orig_dir)
|
|
except OSError as err:
|
|
self.fail(err)
|
|
finally:
|
|
os.remove(file1)
|
|
shutil.rmtree(level1)
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32JunctionTests(unittest.TestCase):
|
|
junction = 'junctiontest'
|
|
junction_target = os.path.dirname(os.path.abspath(__file__))
|
|
|
|
def setUp(self):
|
|
assert os.path.exists(self.junction_target)
|
|
assert not os.path.exists(self.junction)
|
|
|
|
def tearDown(self):
|
|
if os.path.exists(self.junction):
|
|
# os.rmdir delegates to Windows' RemoveDirectoryW,
|
|
# which removes junction points safely.
|
|
os.rmdir(self.junction)
|
|
|
|
def test_create_junction(self):
|
|
_winapi.CreateJunction(self.junction_target, self.junction)
|
|
self.assertTrue(os.path.exists(self.junction))
|
|
self.assertTrue(os.path.isdir(self.junction))
|
|
|
|
# Junctions are not recognized as links.
|
|
self.assertFalse(os.path.islink(self.junction))
|
|
|
|
def test_unlink_removes_junction(self):
|
|
_winapi.CreateJunction(self.junction_target, self.junction)
|
|
self.assertTrue(os.path.exists(self.junction))
|
|
|
|
os.unlink(self.junction)
|
|
self.assertFalse(os.path.exists(self.junction))
|
|
|
|
|
|
@support.skip_unless_symlink
|
|
class NonLocalSymlinkTests(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
"""
|
|
Create this structure:
|
|
|
|
base
|
|
\___ some_dir
|
|
"""
|
|
os.makedirs('base/some_dir')
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree('base')
|
|
|
|
def test_directory_link_nonlocal(self):
|
|
"""
|
|
The symlink target should resolve relative to the link, not relative
|
|
to the current directory.
|
|
|
|
Then, link base/some_link -> base/some_dir and ensure that some_link
|
|
is resolved as a directory.
|
|
|
|
In issue13772, it was discovered that directory detection failed if
|
|
the symlink target was not specified relative to the current
|
|
directory, which was a defect in the implementation.
|
|
"""
|
|
src = os.path.join('base', 'some_link')
|
|
os.symlink('some_dir', src)
|
|
assert os.path.isdir(src)
|
|
|
|
|
|
class FSEncodingTests(unittest.TestCase):
|
|
def test_nop(self):
|
|
self.assertEqual(os.fsencode(b'abc\xff'), b'abc\xff')
|
|
self.assertEqual(os.fsdecode('abc\u0141'), 'abc\u0141')
|
|
|
|
def test_identity(self):
|
|
# assert fsdecode(fsencode(x)) == x
|
|
for fn in ('unicode\u0141', 'latin\xe9', 'ascii'):
|
|
try:
|
|
bytesfn = os.fsencode(fn)
|
|
except UnicodeEncodeError:
|
|
continue
|
|
self.assertEqual(os.fsdecode(bytesfn), fn)
|
|
|
|
|
|
|
|
class DeviceEncodingTests(unittest.TestCase):
|
|
|
|
def test_bad_fd(self):
|
|
# Return None when an fd doesn't actually exist.
|
|
self.assertIsNone(os.device_encoding(123456))
|
|
|
|
@unittest.skipUnless(os.isatty(0) and (sys.platform.startswith('win') or
|
|
(hasattr(locale, 'nl_langinfo') and hasattr(locale, 'CODESET'))),
|
|
'test requires a tty and either Windows or nl_langinfo(CODESET)')
|
|
def test_device_encoding(self):
|
|
encoding = os.device_encoding(0)
|
|
self.assertIsNotNone(encoding)
|
|
self.assertTrue(codecs.lookup(encoding))
|
|
|
|
|
|
class PidTests(unittest.TestCase):
|
|
@unittest.skipUnless(hasattr(os, 'getppid'), "test needs os.getppid")
|
|
def test_getppid(self):
|
|
p = subprocess.Popen([sys.executable, '-c',
|
|
'import os; print(os.getppid())'],
|
|
stdout=subprocess.PIPE)
|
|
stdout, _ = p.communicate()
|
|
# We are the parent of our subprocess
|
|
self.assertEqual(int(stdout), os.getpid())
|
|
|
|
def test_waitpid(self):
|
|
args = [sys.executable, '-c', 'pass']
|
|
pid = os.spawnv(os.P_NOWAIT, args[0], args)
|
|
status = os.waitpid(pid, 0)
|
|
self.assertEqual(status, (pid, 0))
|
|
|
|
|
|
# The introduction of this TestCase caused at least two different errors on
|
|
# *nix buildbots. Temporarily skip this to let the buildbots move along.
|
|
@unittest.skip("Skip due to platform/environment differences on *NIX buildbots")
|
|
@unittest.skipUnless(hasattr(os, 'getlogin'), "test needs os.getlogin")
|
|
class LoginTests(unittest.TestCase):
|
|
def test_getlogin(self):
|
|
user_name = os.getlogin()
|
|
self.assertNotEqual(len(user_name), 0)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getpriority') and hasattr(os, 'setpriority'),
|
|
"needs os.getpriority and os.setpriority")
|
|
class ProgramPriorityTests(unittest.TestCase):
|
|
"""Tests for os.getpriority() and os.setpriority()."""
|
|
|
|
def test_set_get_priority(self):
|
|
|
|
base = os.getpriority(os.PRIO_PROCESS, os.getpid())
|
|
os.setpriority(os.PRIO_PROCESS, os.getpid(), base + 1)
|
|
try:
|
|
new_prio = os.getpriority(os.PRIO_PROCESS, os.getpid())
|
|
if base >= 19 and new_prio <= 19:
|
|
raise unittest.SkipTest(
|
|
"unable to reliably test setpriority at current nice level of %s" % base)
|
|
else:
|
|
self.assertEqual(new_prio, base + 1)
|
|
finally:
|
|
try:
|
|
os.setpriority(os.PRIO_PROCESS, os.getpid(), base)
|
|
except OSError as err:
|
|
if err.errno != errno.EACCES:
|
|
raise
|
|
|
|
|
|
if threading is not None:
|
|
class SendfileTestServer(asyncore.dispatcher, threading.Thread):
|
|
|
|
class Handler(asynchat.async_chat):
|
|
|
|
def __init__(self, conn):
|
|
asynchat.async_chat.__init__(self, conn)
|
|
self.in_buffer = []
|
|
self.closed = False
|
|
self.push(b"220 ready\r\n")
|
|
|
|
def handle_read(self):
|
|
data = self.recv(4096)
|
|
self.in_buffer.append(data)
|
|
|
|
def get_data(self):
|
|
return b''.join(self.in_buffer)
|
|
|
|
def handle_close(self):
|
|
self.close()
|
|
self.closed = True
|
|
|
|
def handle_error(self):
|
|
raise
|
|
|
|
def __init__(self, address):
|
|
threading.Thread.__init__(self)
|
|
asyncore.dispatcher.__init__(self)
|
|
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.bind(address)
|
|
self.listen(5)
|
|
self.host, self.port = self.socket.getsockname()[:2]
|
|
self.handler_instance = None
|
|
self._active = False
|
|
self._active_lock = threading.Lock()
|
|
|
|
# --- public API
|
|
|
|
@property
|
|
def running(self):
|
|
return self._active
|
|
|
|
def start(self):
|
|
assert not self.running
|
|
self.__flag = threading.Event()
|
|
threading.Thread.start(self)
|
|
self.__flag.wait()
|
|
|
|
def stop(self):
|
|
assert self.running
|
|
self._active = False
|
|
self.join()
|
|
|
|
def wait(self):
|
|
# wait for handler connection to be closed, then stop the server
|
|
while not getattr(self.handler_instance, "closed", False):
|
|
time.sleep(0.001)
|
|
self.stop()
|
|
|
|
# --- internals
|
|
|
|
def run(self):
|
|
self._active = True
|
|
self.__flag.set()
|
|
while self._active and asyncore.socket_map:
|
|
self._active_lock.acquire()
|
|
asyncore.loop(timeout=0.001, count=1)
|
|
self._active_lock.release()
|
|
asyncore.close_all()
|
|
|
|
def handle_accept(self):
|
|
conn, addr = self.accept()
|
|
self.handler_instance = self.Handler(conn)
|
|
|
|
def handle_connect(self):
|
|
self.close()
|
|
handle_read = handle_connect
|
|
|
|
def writable(self):
|
|
return 0
|
|
|
|
def handle_error(self):
|
|
raise
|
|
|
|
|
|
@unittest.skipUnless(threading is not None, "test needs threading module")
|
|
@unittest.skipUnless(hasattr(os, 'sendfile'), "test needs os.sendfile()")
|
|
class TestSendfile(unittest.TestCase):
|
|
|
|
DATA = b"12345abcde" * 16 * 1024 # 160 KB
|
|
SUPPORT_HEADERS_TRAILERS = not sys.platform.startswith("linux") and \
|
|
not sys.platform.startswith("solaris") and \
|
|
not sys.platform.startswith("sunos")
|
|
requires_headers_trailers = unittest.skipUnless(SUPPORT_HEADERS_TRAILERS,
|
|
'requires headers and trailers support')
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
cls.key = support.threading_setup()
|
|
with open(support.TESTFN, "wb") as f:
|
|
f.write(cls.DATA)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
support.threading_cleanup(*cls.key)
|
|
support.unlink(support.TESTFN)
|
|
|
|
def setUp(self):
|
|
self.server = SendfileTestServer((support.HOST, 0))
|
|
self.server.start()
|
|
self.client = socket.socket()
|
|
self.client.connect((self.server.host, self.server.port))
|
|
self.client.settimeout(1)
|
|
# synchronize by waiting for "220 ready" response
|
|
self.client.recv(1024)
|
|
self.sockno = self.client.fileno()
|
|
self.file = open(support.TESTFN, 'rb')
|
|
self.fileno = self.file.fileno()
|
|
|
|
def tearDown(self):
|
|
self.file.close()
|
|
self.client.close()
|
|
if self.server.running:
|
|
self.server.stop()
|
|
|
|
def sendfile_wrapper(self, sock, file, offset, nbytes, headers=[], trailers=[]):
|
|
"""A higher level wrapper representing how an application is
|
|
supposed to use sendfile().
|
|
"""
|
|
while 1:
|
|
try:
|
|
if self.SUPPORT_HEADERS_TRAILERS:
|
|
return os.sendfile(sock, file, offset, nbytes, headers,
|
|
trailers)
|
|
else:
|
|
return os.sendfile(sock, file, offset, nbytes)
|
|
except OSError as err:
|
|
if err.errno == errno.ECONNRESET:
|
|
# disconnected
|
|
raise
|
|
elif err.errno in (errno.EAGAIN, errno.EBUSY):
|
|
# we have to retry send data
|
|
continue
|
|
else:
|
|
raise
|
|
|
|
def test_send_whole_file(self):
|
|
# normal send
|
|
total_sent = 0
|
|
offset = 0
|
|
nbytes = 4096
|
|
while total_sent < len(self.DATA):
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
offset += sent
|
|
total_sent += sent
|
|
self.assertTrue(sent <= nbytes)
|
|
self.assertEqual(offset, total_sent)
|
|
|
|
self.assertEqual(total_sent, len(self.DATA))
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(len(data), len(self.DATA))
|
|
self.assertEqual(data, self.DATA)
|
|
|
|
def test_send_at_certain_offset(self):
|
|
# start sending a file at a certain offset
|
|
total_sent = 0
|
|
offset = len(self.DATA) // 2
|
|
must_send = len(self.DATA) - offset
|
|
nbytes = 4096
|
|
while total_sent < must_send:
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
offset += sent
|
|
total_sent += sent
|
|
self.assertTrue(sent <= nbytes)
|
|
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
expected = self.DATA[len(self.DATA) // 2:]
|
|
self.assertEqual(total_sent, len(expected))
|
|
self.assertEqual(len(data), len(expected))
|
|
self.assertEqual(data, expected)
|
|
|
|
def test_offset_overflow(self):
|
|
# specify an offset > file size
|
|
offset = len(self.DATA) + 4096
|
|
try:
|
|
sent = os.sendfile(self.sockno, self.fileno, offset, 4096)
|
|
except OSError as e:
|
|
# Solaris can raise EINVAL if offset >= file length, ignore.
|
|
if e.errno != errno.EINVAL:
|
|
raise
|
|
else:
|
|
self.assertEqual(sent, 0)
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(data, b'')
|
|
|
|
def test_invalid_offset(self):
|
|
with self.assertRaises(OSError) as cm:
|
|
os.sendfile(self.sockno, self.fileno, -1, 4096)
|
|
self.assertEqual(cm.exception.errno, errno.EINVAL)
|
|
|
|
def test_keywords(self):
|
|
# Keyword arguments should be supported
|
|
os.sendfile(out=self.sockno, offset=0, count=4096,
|
|
**{'in': self.fileno})
|
|
if self.SUPPORT_HEADERS_TRAILERS:
|
|
os.sendfile(self.sockno, self.fileno, offset=0, count=4096,
|
|
headers=(), trailers=(), flags=0)
|
|
|
|
# --- headers / trailers tests
|
|
|
|
@requires_headers_trailers
|
|
def test_headers(self):
|
|
total_sent = 0
|
|
sent = os.sendfile(self.sockno, self.fileno, 0, 4096,
|
|
headers=[b"x" * 512])
|
|
total_sent += sent
|
|
offset = 4096
|
|
nbytes = 4096
|
|
while 1:
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno,
|
|
offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
total_sent += sent
|
|
offset += sent
|
|
|
|
expected_data = b"x" * 512 + self.DATA
|
|
self.assertEqual(total_sent, len(expected_data))
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(hash(data), hash(expected_data))
|
|
|
|
@requires_headers_trailers
|
|
def test_trailers(self):
|
|
TESTFN2 = support.TESTFN + "2"
|
|
file_data = b"abcdef"
|
|
with open(TESTFN2, 'wb') as f:
|
|
f.write(file_data)
|
|
with open(TESTFN2, 'rb')as f:
|
|
self.addCleanup(os.remove, TESTFN2)
|
|
os.sendfile(self.sockno, f.fileno(), 0, len(file_data),
|
|
trailers=[b"1234"])
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(data, b"abcdef1234")
|
|
|
|
@requires_headers_trailers
|
|
@unittest.skipUnless(hasattr(os, 'SF_NODISKIO'),
|
|
'test needs os.SF_NODISKIO')
|
|
def test_flags(self):
|
|
try:
|
|
os.sendfile(self.sockno, self.fileno, 0, 4096,
|
|
flags=os.SF_NODISKIO)
|
|
except OSError as err:
|
|
if err.errno not in (errno.EBUSY, errno.EAGAIN):
|
|
raise
|
|
|
|
|
|
def supports_extended_attributes():
|
|
if not hasattr(os, "setxattr"):
|
|
return False
|
|
try:
|
|
with open(support.TESTFN, "wb") as fp:
|
|
try:
|
|
os.setxattr(fp.fileno(), b"user.test", b"")
|
|
except OSError:
|
|
return False
|
|
finally:
|
|
support.unlink(support.TESTFN)
|
|
# Kernels < 2.6.39 don't respect setxattr flags.
|
|
kernel_version = platform.release()
|
|
m = re.match("2.6.(\d{1,2})", kernel_version)
|
|
return m is None or int(m.group(1)) >= 39
|
|
|
|
|
|
@unittest.skipUnless(supports_extended_attributes(),
|
|
"no non-broken extended attribute support")
|
|
class ExtendedAttributeTests(unittest.TestCase):
|
|
|
|
def tearDown(self):
|
|
support.unlink(support.TESTFN)
|
|
|
|
def _check_xattrs_str(self, s, getxattr, setxattr, removexattr, listxattr, **kwargs):
|
|
fn = support.TESTFN
|
|
open(fn, "wb").close()
|
|
with self.assertRaises(OSError) as cm:
|
|
getxattr(fn, s("user.test"), **kwargs)
|
|
self.assertEqual(cm.exception.errno, errno.ENODATA)
|
|
init_xattr = listxattr(fn)
|
|
self.assertIsInstance(init_xattr, list)
|
|
setxattr(fn, s("user.test"), b"", **kwargs)
|
|
xattr = set(init_xattr)
|
|
xattr.add("user.test")
|
|
self.assertEqual(set(listxattr(fn)), xattr)
|
|
self.assertEqual(getxattr(fn, b"user.test", **kwargs), b"")
|
|
setxattr(fn, s("user.test"), b"hello", os.XATTR_REPLACE, **kwargs)
|
|
self.assertEqual(getxattr(fn, b"user.test", **kwargs), b"hello")
|
|
with self.assertRaises(OSError) as cm:
|
|
setxattr(fn, s("user.test"), b"bye", os.XATTR_CREATE, **kwargs)
|
|
self.assertEqual(cm.exception.errno, errno.EEXIST)
|
|
with self.assertRaises(OSError) as cm:
|
|
setxattr(fn, s("user.test2"), b"bye", os.XATTR_REPLACE, **kwargs)
|
|
self.assertEqual(cm.exception.errno, errno.ENODATA)
|
|
setxattr(fn, s("user.test2"), b"foo", os.XATTR_CREATE, **kwargs)
|
|
xattr.add("user.test2")
|
|
self.assertEqual(set(listxattr(fn)), xattr)
|
|
removexattr(fn, s("user.test"), **kwargs)
|
|
with self.assertRaises(OSError) as cm:
|
|
getxattr(fn, s("user.test"), **kwargs)
|
|
self.assertEqual(cm.exception.errno, errno.ENODATA)
|
|
xattr.remove("user.test")
|
|
self.assertEqual(set(listxattr(fn)), xattr)
|
|
self.assertEqual(getxattr(fn, s("user.test2"), **kwargs), b"foo")
|
|
setxattr(fn, s("user.test"), b"a"*1024, **kwargs)
|
|
self.assertEqual(getxattr(fn, s("user.test"), **kwargs), b"a"*1024)
|
|
removexattr(fn, s("user.test"), **kwargs)
|
|
many = sorted("user.test{}".format(i) for i in range(100))
|
|
for thing in many:
|
|
setxattr(fn, thing, b"x", **kwargs)
|
|
self.assertEqual(set(listxattr(fn)), set(init_xattr) | set(many))
|
|
|
|
def _check_xattrs(self, *args, **kwargs):
|
|
def make_bytes(s):
|
|
return bytes(s, "ascii")
|
|
self._check_xattrs_str(str, *args, **kwargs)
|
|
support.unlink(support.TESTFN)
|
|
self._check_xattrs_str(make_bytes, *args, **kwargs)
|
|
|
|
def test_simple(self):
|
|
self._check_xattrs(os.getxattr, os.setxattr, os.removexattr,
|
|
os.listxattr)
|
|
|
|
def test_lpath(self):
|
|
self._check_xattrs(os.getxattr, os.setxattr, os.removexattr,
|
|
os.listxattr, follow_symlinks=False)
|
|
|
|
def test_fds(self):
|
|
def getxattr(path, *args):
|
|
with open(path, "rb") as fp:
|
|
return os.getxattr(fp.fileno(), *args)
|
|
def setxattr(path, *args):
|
|
with open(path, "wb") as fp:
|
|
os.setxattr(fp.fileno(), *args)
|
|
def removexattr(path, *args):
|
|
with open(path, "wb") as fp:
|
|
os.removexattr(fp.fileno(), *args)
|
|
def listxattr(path, *args):
|
|
with open(path, "rb") as fp:
|
|
return os.listxattr(fp.fileno(), *args)
|
|
self._check_xattrs(getxattr, setxattr, removexattr, listxattr)
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32DeprecatedBytesAPI(unittest.TestCase):
|
|
def test_deprecated(self):
|
|
import nt
|
|
filename = os.fsencode(support.TESTFN)
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("error", DeprecationWarning)
|
|
for func, *args in (
|
|
(nt._getfullpathname, filename),
|
|
(nt._isdir, filename),
|
|
(os.access, filename, os.R_OK),
|
|
(os.chdir, filename),
|
|
(os.chmod, filename, 0o777),
|
|
(os.getcwdb,),
|
|
(os.link, filename, filename),
|
|
(os.listdir, filename),
|
|
(os.lstat, filename),
|
|
(os.mkdir, filename),
|
|
(os.open, filename, os.O_RDONLY),
|
|
(os.rename, filename, filename),
|
|
(os.rmdir, filename),
|
|
(os.startfile, filename),
|
|
(os.stat, filename),
|
|
(os.unlink, filename),
|
|
(os.utime, filename),
|
|
):
|
|
self.assertRaises(DeprecationWarning, func, *args)
|
|
|
|
@support.skip_unless_symlink
|
|
def test_symlink(self):
|
|
filename = os.fsencode(support.TESTFN)
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("error", DeprecationWarning)
|
|
self.assertRaises(DeprecationWarning,
|
|
os.symlink, filename, filename)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'get_terminal_size'), "requires os.get_terminal_size")
|
|
class TermsizeTests(unittest.TestCase):
|
|
def test_does_not_crash(self):
|
|
"""Check if get_terminal_size() returns a meaningful value.
|
|
|
|
There's no easy portable way to actually check the size of the
|
|
terminal, so let's check if it returns something sensible instead.
|
|
"""
|
|
try:
|
|
size = os.get_terminal_size()
|
|
except OSError as e:
|
|
if sys.platform == "win32" or e.errno in (errno.EINVAL, errno.ENOTTY):
|
|
# Under win32 a generic OSError can be thrown if the
|
|
# handle cannot be retrieved
|
|
self.skipTest("failed to query terminal size")
|
|
raise
|
|
|
|
self.assertGreaterEqual(size.columns, 0)
|
|
self.assertGreaterEqual(size.lines, 0)
|
|
|
|
def test_stty_match(self):
|
|
"""Check if stty returns the same results
|
|
|
|
stty actually tests stdin, so get_terminal_size is invoked on
|
|
stdin explicitly. If stty succeeded, then get_terminal_size()
|
|
should work too.
|
|
"""
|
|
try:
|
|
size = subprocess.check_output(['stty', 'size']).decode().split()
|
|
except (FileNotFoundError, subprocess.CalledProcessError):
|
|
self.skipTest("stty invocation failed")
|
|
expected = (int(size[1]), int(size[0])) # reversed order
|
|
|
|
try:
|
|
actual = os.get_terminal_size(sys.__stdin__.fileno())
|
|
except OSError as e:
|
|
if sys.platform == "win32" or e.errno in (errno.EINVAL, errno.ENOTTY):
|
|
# Under win32 a generic OSError can be thrown if the
|
|
# handle cannot be retrieved
|
|
self.skipTest("failed to query terminal size")
|
|
raise
|
|
self.assertEqual(expected, actual)
|
|
|
|
|
|
class OSErrorTests(unittest.TestCase):
|
|
def setUp(self):
|
|
class Str(str):
|
|
pass
|
|
|
|
self.bytes_filenames = []
|
|
self.unicode_filenames = []
|
|
if support.TESTFN_UNENCODABLE is not None:
|
|
decoded = support.TESTFN_UNENCODABLE
|
|
else:
|
|
decoded = support.TESTFN
|
|
self.unicode_filenames.append(decoded)
|
|
self.unicode_filenames.append(Str(decoded))
|
|
if support.TESTFN_UNDECODABLE is not None:
|
|
encoded = support.TESTFN_UNDECODABLE
|
|
else:
|
|
encoded = os.fsencode(support.TESTFN)
|
|
self.bytes_filenames.append(encoded)
|
|
self.bytes_filenames.append(memoryview(encoded))
|
|
|
|
self.filenames = self.bytes_filenames + self.unicode_filenames
|
|
|
|
def test_oserror_filename(self):
|
|
funcs = [
|
|
(self.filenames, os.chdir,),
|
|
(self.filenames, os.chmod, 0o777),
|
|
(self.filenames, os.lstat,),
|
|
(self.filenames, os.open, os.O_RDONLY),
|
|
(self.filenames, os.rmdir,),
|
|
(self.filenames, os.stat,),
|
|
(self.filenames, os.unlink,),
|
|
]
|
|
if sys.platform == "win32":
|
|
funcs.extend((
|
|
(self.bytes_filenames, os.rename, b"dst"),
|
|
(self.bytes_filenames, os.replace, b"dst"),
|
|
(self.unicode_filenames, os.rename, "dst"),
|
|
(self.unicode_filenames, os.replace, "dst"),
|
|
# Issue #16414: Don't test undecodable names with listdir()
|
|
# because of a Windows bug.
|
|
#
|
|
# With the ANSI code page 932, os.listdir(b'\xe7') return an
|
|
# empty list (instead of failing), whereas os.listdir(b'\xff')
|
|
# raises a FileNotFoundError. It looks like a Windows bug:
|
|
# b'\xe7' directory does not exist, FindFirstFileA(b'\xe7')
|
|
# fails with ERROR_FILE_NOT_FOUND (2), instead of
|
|
# ERROR_PATH_NOT_FOUND (3).
|
|
(self.unicode_filenames, os.listdir,),
|
|
))
|
|
else:
|
|
funcs.extend((
|
|
(self.filenames, os.listdir,),
|
|
(self.filenames, os.rename, "dst"),
|
|
(self.filenames, os.replace, "dst"),
|
|
))
|
|
if hasattr(os, "chown"):
|
|
funcs.append((self.filenames, os.chown, 0, 0))
|
|
if hasattr(os, "lchown"):
|
|
funcs.append((self.filenames, os.lchown, 0, 0))
|
|
if hasattr(os, "truncate"):
|
|
funcs.append((self.filenames, os.truncate, 0))
|
|
if hasattr(os, "chflags"):
|
|
funcs.append((self.filenames, os.chflags, 0))
|
|
if hasattr(os, "lchflags"):
|
|
funcs.append((self.filenames, os.lchflags, 0))
|
|
if hasattr(os, "chroot"):
|
|
funcs.append((self.filenames, os.chroot,))
|
|
if hasattr(os, "link"):
|
|
if sys.platform == "win32":
|
|
funcs.append((self.bytes_filenames, os.link, b"dst"))
|
|
funcs.append((self.unicode_filenames, os.link, "dst"))
|
|
else:
|
|
funcs.append((self.filenames, os.link, "dst"))
|
|
if hasattr(os, "listxattr"):
|
|
funcs.extend((
|
|
(self.filenames, os.listxattr,),
|
|
(self.filenames, os.getxattr, "user.test"),
|
|
(self.filenames, os.setxattr, "user.test", b'user'),
|
|
(self.filenames, os.removexattr, "user.test"),
|
|
))
|
|
if hasattr(os, "lchmod"):
|
|
funcs.append((self.filenames, os.lchmod, 0o777))
|
|
if hasattr(os, "readlink"):
|
|
if sys.platform == "win32":
|
|
funcs.append((self.unicode_filenames, os.readlink,))
|
|
else:
|
|
funcs.append((self.filenames, os.readlink,))
|
|
|
|
for filenames, func, *func_args in funcs:
|
|
for name in filenames:
|
|
try:
|
|
func(name, *func_args)
|
|
except OSError as err:
|
|
self.assertIs(err.filename, name)
|
|
else:
|
|
self.fail("No exception thrown by {}".format(func))
|
|
|
|
class CPUCountTests(unittest.TestCase):
|
|
def test_cpu_count(self):
|
|
cpus = os.cpu_count()
|
|
if cpus is not None:
|
|
self.assertIsInstance(cpus, int)
|
|
self.assertGreater(cpus, 0)
|
|
else:
|
|
self.skipTest("Could not determine the number of CPUs")
|
|
|
|
|
|
class FDInheritanceTests(unittest.TestCase):
|
|
def test_get_set_inheritable(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(os.get_inheritable(fd), False)
|
|
|
|
os.set_inheritable(fd, True)
|
|
self.assertEqual(os.get_inheritable(fd), True)
|
|
|
|
@unittest.skipIf(fcntl is None, "need fcntl")
|
|
def test_get_inheritable_cloexec(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(os.get_inheritable(fd), False)
|
|
|
|
# clear FD_CLOEXEC flag
|
|
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
|
|
flags &= ~fcntl.FD_CLOEXEC
|
|
fcntl.fcntl(fd, fcntl.F_SETFD, flags)
|
|
|
|
self.assertEqual(os.get_inheritable(fd), True)
|
|
|
|
@unittest.skipIf(fcntl is None, "need fcntl")
|
|
def test_set_inheritable_cloexec(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
|
|
fcntl.FD_CLOEXEC)
|
|
|
|
os.set_inheritable(fd, True)
|
|
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
|
|
0)
|
|
|
|
def test_open(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(os.get_inheritable(fd), False)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'pipe'), "need os.pipe()")
|
|
def test_pipe(self):
|
|
rfd, wfd = os.pipe()
|
|
self.addCleanup(os.close, rfd)
|
|
self.addCleanup(os.close, wfd)
|
|
self.assertEqual(os.get_inheritable(rfd), False)
|
|
self.assertEqual(os.get_inheritable(wfd), False)
|
|
|
|
def test_dup(self):
|
|
fd1 = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd1)
|
|
|
|
fd2 = os.dup(fd1)
|
|
self.addCleanup(os.close, fd2)
|
|
self.assertEqual(os.get_inheritable(fd2), False)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'dup2'), "need os.dup2()")
|
|
def test_dup2(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
|
|
# inheritable by default
|
|
fd2 = os.open(__file__, os.O_RDONLY)
|
|
try:
|
|
os.dup2(fd, fd2)
|
|
self.assertEqual(os.get_inheritable(fd2), True)
|
|
finally:
|
|
os.close(fd2)
|
|
|
|
# force non-inheritable
|
|
fd3 = os.open(__file__, os.O_RDONLY)
|
|
try:
|
|
os.dup2(fd, fd3, inheritable=False)
|
|
self.assertEqual(os.get_inheritable(fd3), False)
|
|
finally:
|
|
os.close(fd3)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'openpty'), "need os.openpty()")
|
|
def test_openpty(self):
|
|
master_fd, slave_fd = os.openpty()
|
|
self.addCleanup(os.close, master_fd)
|
|
self.addCleanup(os.close, slave_fd)
|
|
self.assertEqual(os.get_inheritable(master_fd), False)
|
|
self.assertEqual(os.get_inheritable(slave_fd), False)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'get_blocking'),
|
|
'needs os.get_blocking() and os.set_blocking()')
|
|
class BlockingTests(unittest.TestCase):
|
|
def test_blocking(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(os.get_blocking(fd), True)
|
|
|
|
os.set_blocking(fd, False)
|
|
self.assertEqual(os.get_blocking(fd), False)
|
|
|
|
os.set_blocking(fd, True)
|
|
self.assertEqual(os.get_blocking(fd), True)
|
|
|
|
|
|
|
|
class ExportsTests(unittest.TestCase):
|
|
def test_os_all(self):
|
|
self.assertIn('open', os.__all__)
|
|
self.assertIn('walk', os.__all__)
|
|
|
|
|
|
class TestScandir(unittest.TestCase):
|
|
def setUp(self):
|
|
self.path = os.path.realpath(support.TESTFN)
|
|
self.addCleanup(support.rmtree, self.path)
|
|
os.mkdir(self.path)
|
|
|
|
def create_file(self, name="file.txt"):
|
|
filename = os.path.join(self.path, name)
|
|
with open(filename, "wb") as fp:
|
|
fp.write(b'python')
|
|
return filename
|
|
|
|
def get_entries(self, names):
|
|
entries = dict((entry.name, entry)
|
|
for entry in os.scandir(self.path))
|
|
self.assertEqual(sorted(entries.keys()), names)
|
|
return entries
|
|
|
|
def assert_stat_equal(self, stat1, stat2, skip_fields):
|
|
if skip_fields:
|
|
for attr in dir(stat1):
|
|
if not attr.startswith("st_"):
|
|
continue
|
|
if attr in ("st_dev", "st_ino", "st_nlink"):
|
|
continue
|
|
self.assertEqual(getattr(stat1, attr),
|
|
getattr(stat2, attr),
|
|
(stat1, stat2, attr))
|
|
else:
|
|
self.assertEqual(stat1, stat2)
|
|
|
|
def check_entry(self, entry, name, is_dir, is_file, is_symlink):
|
|
self.assertEqual(entry.name, name)
|
|
self.assertEqual(entry.path, os.path.join(self.path, name))
|
|
self.assertEqual(entry.inode(),
|
|
os.stat(entry.path, follow_symlinks=False).st_ino)
|
|
|
|
entry_stat = os.stat(entry.path)
|
|
self.assertEqual(entry.is_dir(),
|
|
stat.S_ISDIR(entry_stat.st_mode))
|
|
self.assertEqual(entry.is_file(),
|
|
stat.S_ISREG(entry_stat.st_mode))
|
|
self.assertEqual(entry.is_symlink(),
|
|
os.path.islink(entry.path))
|
|
|
|
entry_lstat = os.stat(entry.path, follow_symlinks=False)
|
|
self.assertEqual(entry.is_dir(follow_symlinks=False),
|
|
stat.S_ISDIR(entry_lstat.st_mode))
|
|
self.assertEqual(entry.is_file(follow_symlinks=False),
|
|
stat.S_ISREG(entry_lstat.st_mode))
|
|
|
|
self.assert_stat_equal(entry.stat(),
|
|
entry_stat,
|
|
os.name == 'nt' and not is_symlink)
|
|
self.assert_stat_equal(entry.stat(follow_symlinks=False),
|
|
entry_lstat,
|
|
os.name == 'nt')
|
|
|
|
def test_attributes(self):
|
|
link = hasattr(os, 'link')
|
|
symlink = support.can_symlink()
|
|
|
|
dirname = os.path.join(self.path, "dir")
|
|
os.mkdir(dirname)
|
|
filename = self.create_file("file.txt")
|
|
if link:
|
|
os.link(filename, os.path.join(self.path, "link_file.txt"))
|
|
if symlink:
|
|
os.symlink(dirname, os.path.join(self.path, "symlink_dir"),
|
|
target_is_directory=True)
|
|
os.symlink(filename, os.path.join(self.path, "symlink_file.txt"))
|
|
|
|
names = ['dir', 'file.txt']
|
|
if link:
|
|
names.append('link_file.txt')
|
|
if symlink:
|
|
names.extend(('symlink_dir', 'symlink_file.txt'))
|
|
entries = self.get_entries(names)
|
|
|
|
entry = entries['dir']
|
|
self.check_entry(entry, 'dir', True, False, False)
|
|
|
|
entry = entries['file.txt']
|
|
self.check_entry(entry, 'file.txt', False, True, False)
|
|
|
|
if link:
|
|
entry = entries['link_file.txt']
|
|
self.check_entry(entry, 'link_file.txt', False, True, False)
|
|
|
|
if symlink:
|
|
entry = entries['symlink_dir']
|
|
self.check_entry(entry, 'symlink_dir', True, False, True)
|
|
|
|
entry = entries['symlink_file.txt']
|
|
self.check_entry(entry, 'symlink_file.txt', False, True, True)
|
|
|
|
def get_entry(self, name):
|
|
entries = list(os.scandir(self.path))
|
|
self.assertEqual(len(entries), 1)
|
|
|
|
entry = entries[0]
|
|
self.assertEqual(entry.name, name)
|
|
return entry
|
|
|
|
def create_file_entry(self):
|
|
filename = self.create_file()
|
|
return self.get_entry(os.path.basename(filename))
|
|
|
|
def test_current_directory(self):
|
|
filename = self.create_file()
|
|
old_dir = os.getcwd()
|
|
try:
|
|
os.chdir(self.path)
|
|
|
|
# call scandir() without parameter: it must list the content
|
|
# of the current directory
|
|
entries = dict((entry.name, entry) for entry in os.scandir())
|
|
self.assertEqual(sorted(entries.keys()),
|
|
[os.path.basename(filename)])
|
|
finally:
|
|
os.chdir(old_dir)
|
|
|
|
def test_repr(self):
|
|
entry = self.create_file_entry()
|
|
self.assertEqual(repr(entry), "<DirEntry 'file.txt'>")
|
|
|
|
def test_removed_dir(self):
|
|
path = os.path.join(self.path, 'dir')
|
|
|
|
os.mkdir(path)
|
|
entry = self.get_entry('dir')
|
|
os.rmdir(path)
|
|
|
|
# On POSIX, is_dir() result depends if scandir() filled d_type or not
|
|
if os.name == 'nt':
|
|
self.assertTrue(entry.is_dir())
|
|
self.assertFalse(entry.is_file())
|
|
self.assertFalse(entry.is_symlink())
|
|
if os.name == 'nt':
|
|
self.assertRaises(FileNotFoundError, entry.inode)
|
|
# don't fail
|
|
entry.stat()
|
|
entry.stat(follow_symlinks=False)
|
|
else:
|
|
self.assertGreater(entry.inode(), 0)
|
|
self.assertRaises(FileNotFoundError, entry.stat)
|
|
self.assertRaises(FileNotFoundError, entry.stat, follow_symlinks=False)
|
|
|
|
def test_removed_file(self):
|
|
entry = self.create_file_entry()
|
|
os.unlink(entry.path)
|
|
|
|
self.assertFalse(entry.is_dir())
|
|
# On POSIX, is_dir() result depends if scandir() filled d_type or not
|
|
if os.name == 'nt':
|
|
self.assertTrue(entry.is_file())
|
|
self.assertFalse(entry.is_symlink())
|
|
if os.name == 'nt':
|
|
self.assertRaises(FileNotFoundError, entry.inode)
|
|
# don't fail
|
|
entry.stat()
|
|
entry.stat(follow_symlinks=False)
|
|
else:
|
|
self.assertGreater(entry.inode(), 0)
|
|
self.assertRaises(FileNotFoundError, entry.stat)
|
|
self.assertRaises(FileNotFoundError, entry.stat, follow_symlinks=False)
|
|
|
|
def test_broken_symlink(self):
|
|
if not support.can_symlink():
|
|
return self.skipTest('cannot create symbolic link')
|
|
|
|
filename = self.create_file("file.txt")
|
|
os.symlink(filename,
|
|
os.path.join(self.path, "symlink.txt"))
|
|
entries = self.get_entries(['file.txt', 'symlink.txt'])
|
|
entry = entries['symlink.txt']
|
|
os.unlink(filename)
|
|
|
|
self.assertGreater(entry.inode(), 0)
|
|
self.assertFalse(entry.is_dir())
|
|
self.assertFalse(entry.is_file()) # broken symlink returns False
|
|
self.assertFalse(entry.is_dir(follow_symlinks=False))
|
|
self.assertFalse(entry.is_file(follow_symlinks=False))
|
|
self.assertTrue(entry.is_symlink())
|
|
self.assertRaises(FileNotFoundError, entry.stat)
|
|
# don't fail
|
|
entry.stat(follow_symlinks=False)
|
|
|
|
def test_bytes(self):
|
|
if os.name == "nt":
|
|
# On Windows, os.scandir(bytes) must raise an exception
|
|
self.assertRaises(TypeError, os.scandir, b'.')
|
|
return
|
|
|
|
self.create_file("file.txt")
|
|
|
|
path_bytes = os.fsencode(self.path)
|
|
entries = list(os.scandir(path_bytes))
|
|
self.assertEqual(len(entries), 1, entries)
|
|
entry = entries[0]
|
|
|
|
self.assertEqual(entry.name, b'file.txt')
|
|
self.assertEqual(entry.path,
|
|
os.fsencode(os.path.join(self.path, 'file.txt')))
|
|
|
|
def test_empty_path(self):
|
|
self.assertRaises(FileNotFoundError, os.scandir, '')
|
|
|
|
def test_consume_iterator_twice(self):
|
|
self.create_file("file.txt")
|
|
iterator = os.scandir(self.path)
|
|
|
|
entries = list(iterator)
|
|
self.assertEqual(len(entries), 1, entries)
|
|
|
|
# check than consuming the iterator twice doesn't raise exception
|
|
entries2 = list(iterator)
|
|
self.assertEqual(len(entries2), 0, entries2)
|
|
|
|
def test_bad_path_type(self):
|
|
for obj in [1234, 1.234, {}, []]:
|
|
self.assertRaises(TypeError, os.scandir, obj)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|