mirror of
https://github.com/python/cpython.git
synced 2025-07-19 17:25:54 +00:00
6146295a5b
* Make musl test skips smarter (fixes Alpine errors)
A relatively small number of tests fail when the underlying c library is
provided by musl. This was originally reported in bpo-46390 by
Christian Heimes. Among other changes, these tests were marked for
skipping in gh-31947/ef1327e3 as part of bpo-40280 (emscripten support),
but the skips were conditioned on the *platform* being emscripten (or
wasi, skips for which ere added in 9b50585e02).
In gh-131071 Victor Stinner added a linked_to_musl function to enable
skipping a test in test_math that fails under musl, like it does on a
number of other platforms. This check can successfully detect that
python is running under musl on Alpine, which was the original problem
report in bpo-46390.
This PR replaces Victor's solution with an enhancement to
platform.libc_ver that does the check more cheaply, and also gets the
version number. The latter is important because the math test being
skipped is due to a bug in musl that has been fixed, but as of this
checkin date has not yet been released. When it is, the test skip can
be fixed to check for the minimum needed version.
The enhanced version of linked_to_musl is also used to do the skips of
the other tests that generically fail under musl, as opposed to
emscripten or wasi only failures. This will allow these tests to be
skipped automatically on Alpine.
This PR does *not* enhance libc_ver to support emscripten and wasi, as
I'm not familiar with those platforms; instead it returns a version
triple of (0, 0, 0) for those platforms. This means the musl tests will
be skipped regardless of musl version, so ideally someone will add
support to libc_ver for these platforms.
* Platform tests and bug fixes.
In adding tests for the new platform code I found a bug in the old code:
if a valid version is passed for version and it is greater than the
version found for an so *and* there is no glibc version, then the
version from the argument was returned. The code changes here fix
that.
* Add support docs, including for some preexisting is_xxx's.
* Add news item about libc_ver enhancement.
* Prettify platform re expression using re.VERBOSE.
5605 lines
208 KiB
Python
5605 lines
208 KiB
Python
# As a test suite for the os module, this is woefully inadequate, but this
|
|
# does add tests for a few functions which have been determined to be more
|
|
# portable than they had been thought to be.
|
|
|
|
import asyncio
|
|
import codecs
|
|
import contextlib
|
|
import decimal
|
|
import errno
|
|
import fnmatch
|
|
import fractions
|
|
import itertools
|
|
import locale
|
|
import os
|
|
import pickle
|
|
import platform
|
|
import select
|
|
import selectors
|
|
import shutil
|
|
import signal
|
|
import socket
|
|
import stat
|
|
import struct
|
|
import subprocess
|
|
import sys
|
|
import sysconfig
|
|
import tempfile
|
|
import textwrap
|
|
import time
|
|
import types
|
|
import unittest
|
|
import uuid
|
|
import warnings
|
|
from test import support
|
|
from test.support import import_helper
|
|
from test.support import os_helper
|
|
from test.support import socket_helper
|
|
from test.support import infinite_recursion
|
|
from test.support import warnings_helper
|
|
from platform import win32_is_iot
|
|
|
|
try:
|
|
import resource
|
|
except ImportError:
|
|
resource = None
|
|
try:
|
|
import fcntl
|
|
except ImportError:
|
|
fcntl = None
|
|
try:
|
|
import _winapi
|
|
except ImportError:
|
|
_winapi = None
|
|
try:
|
|
import pwd
|
|
all_users = [u.pw_uid for u in pwd.getpwall()]
|
|
except (ImportError, AttributeError):
|
|
all_users = []
|
|
try:
|
|
import _testcapi
|
|
from _testcapi import INT_MAX, PY_SSIZE_T_MAX
|
|
except ImportError:
|
|
_testcapi = None
|
|
INT_MAX = PY_SSIZE_T_MAX = sys.maxsize
|
|
|
|
try:
|
|
import mmap
|
|
except ImportError:
|
|
mmap = None
|
|
|
|
from test.support.script_helper import assert_python_ok
|
|
from test.support import unix_shell
|
|
from test.support.os_helper import FakePath
|
|
|
|
|
|
root_in_posix = False
|
|
if hasattr(os, 'geteuid'):
|
|
root_in_posix = (os.geteuid() == 0)
|
|
|
|
# Detect whether we're on a Linux system that uses the (now outdated
|
|
# and unmaintained) linuxthreads threading library. There's an issue
|
|
# when combining linuxthreads with a failed execv call: see
|
|
# http://bugs.python.org/issue4970.
|
|
if hasattr(sys, 'thread_info') and sys.thread_info.version:
|
|
USING_LINUXTHREADS = sys.thread_info.version.startswith("linuxthreads")
|
|
else:
|
|
USING_LINUXTHREADS = False
|
|
|
|
# Issue #14110: Some tests fail on FreeBSD if the user is in the wheel group.
|
|
HAVE_WHEEL_GROUP = sys.platform.startswith('freebsd') and os.getgid() == 0
|
|
|
|
|
|
def requires_os_func(name):
|
|
return unittest.skipUnless(hasattr(os, name), 'requires os.%s' % name)
|
|
|
|
|
|
def create_file(filename, content=b'content'):
|
|
with open(filename, "xb", 0) as fp:
|
|
fp.write(content)
|
|
|
|
|
|
# bpo-41625: On AIX, splice() only works with a socket, not with a pipe.
|
|
requires_splice_pipe = unittest.skipIf(sys.platform.startswith("aix"),
|
|
'on AIX, splice() only accepts sockets')
|
|
|
|
|
|
def tearDownModule():
|
|
asyncio._set_event_loop_policy(None)
|
|
|
|
|
|
class MiscTests(unittest.TestCase):
|
|
def test_getcwd(self):
|
|
cwd = os.getcwd()
|
|
self.assertIsInstance(cwd, str)
|
|
|
|
def test_getcwd_long_path(self):
|
|
# bpo-37412: On Linux, PATH_MAX is usually around 4096 bytes. On
|
|
# Windows, MAX_PATH is defined as 260 characters, but Windows supports
|
|
# longer path if longer paths support is enabled. Internally, the os
|
|
# module uses MAXPATHLEN which is at least 1024.
|
|
#
|
|
# Use a directory name of 200 characters to fit into Windows MAX_PATH
|
|
# limit.
|
|
#
|
|
# On Windows, the test can stop when trying to create a path longer
|
|
# than MAX_PATH if long paths support is disabled:
|
|
# see RtlAreLongPathsEnabled().
|
|
min_len = 2000 # characters
|
|
# On VxWorks, PATH_MAX is defined as 1024 bytes. Creating a path
|
|
# longer than PATH_MAX will fail.
|
|
if sys.platform == 'vxworks':
|
|
min_len = 1000
|
|
dirlen = 200 # characters
|
|
dirname = 'python_test_dir_'
|
|
dirname = dirname + ('a' * (dirlen - len(dirname)))
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
with os_helper.change_cwd(tmpdir) as path:
|
|
expected = path
|
|
|
|
while True:
|
|
cwd = os.getcwd()
|
|
self.assertEqual(cwd, expected)
|
|
|
|
need = min_len - (len(cwd) + len(os.path.sep))
|
|
if need <= 0:
|
|
break
|
|
if len(dirname) > need and need > 0:
|
|
dirname = dirname[:need]
|
|
|
|
path = os.path.join(path, dirname)
|
|
try:
|
|
os.mkdir(path)
|
|
# On Windows, chdir() can fail
|
|
# even if mkdir() succeeded
|
|
os.chdir(path)
|
|
except FileNotFoundError:
|
|
# On Windows, catch ERROR_PATH_NOT_FOUND (3) and
|
|
# ERROR_FILENAME_EXCED_RANGE (206) errors
|
|
# ("The filename or extension is too long")
|
|
break
|
|
except OSError as exc:
|
|
if exc.errno == errno.ENAMETOOLONG:
|
|
break
|
|
else:
|
|
raise
|
|
|
|
expected = path
|
|
|
|
if support.verbose:
|
|
print(f"Tested current directory length: {len(cwd)}")
|
|
|
|
def test_getcwdb(self):
|
|
cwd = os.getcwdb()
|
|
self.assertIsInstance(cwd, bytes)
|
|
self.assertEqual(os.fsdecode(cwd), os.getcwd())
|
|
|
|
|
|
# Tests creating TESTFN
|
|
class FileTests(unittest.TestCase):
|
|
def setUp(self):
|
|
if os.path.lexists(os_helper.TESTFN):
|
|
os.unlink(os_helper.TESTFN)
|
|
tearDown = setUp
|
|
|
|
def test_access(self):
|
|
f = os.open(os_helper.TESTFN, os.O_CREAT|os.O_RDWR)
|
|
os.close(f)
|
|
self.assertTrue(os.access(os_helper.TESTFN, os.W_OK))
|
|
|
|
@unittest.skipIf(
|
|
support.is_wasi, "WASI does not support dup."
|
|
)
|
|
def test_closerange(self):
|
|
first = os.open(os_helper.TESTFN, os.O_CREAT|os.O_RDWR)
|
|
# We must allocate two consecutive file descriptors, otherwise
|
|
# it will mess up other file descriptors (perhaps even the three
|
|
# standard ones).
|
|
second = os.dup(first)
|
|
try:
|
|
retries = 0
|
|
while second != first + 1:
|
|
os.close(first)
|
|
retries += 1
|
|
if retries > 10:
|
|
# XXX test skipped
|
|
self.skipTest("couldn't allocate two consecutive fds")
|
|
first, second = second, os.dup(second)
|
|
finally:
|
|
os.close(second)
|
|
# close a fd that is open, and one that isn't
|
|
os.closerange(first, first + 2)
|
|
self.assertRaises(OSError, os.write, first, b"a")
|
|
|
|
@support.cpython_only
|
|
def test_rename(self):
|
|
path = os_helper.TESTFN
|
|
old = sys.getrefcount(path)
|
|
self.assertRaises(TypeError, os.rename, path, 0)
|
|
new = sys.getrefcount(path)
|
|
self.assertEqual(old, new)
|
|
|
|
def test_read(self):
|
|
with open(os_helper.TESTFN, "w+b") as fobj:
|
|
fobj.write(b"spam")
|
|
fobj.flush()
|
|
fd = fobj.fileno()
|
|
os.lseek(fd, 0, 0)
|
|
s = os.read(fd, 4)
|
|
self.assertEqual(type(s), bytes)
|
|
self.assertEqual(s, b"spam")
|
|
|
|
def test_readinto(self):
|
|
with open(os_helper.TESTFN, "w+b") as fobj:
|
|
fobj.write(b"spam")
|
|
fobj.flush()
|
|
fd = fobj.fileno()
|
|
os.lseek(fd, 0, 0)
|
|
# Oversized so readinto without hitting end.
|
|
buffer = bytearray(7)
|
|
s = os.readinto(fd, buffer)
|
|
self.assertEqual(type(s), int)
|
|
self.assertEqual(s, 4)
|
|
# Should overwrite the first 4 bytes of the buffer.
|
|
self.assertEqual(buffer[:4], b"spam")
|
|
|
|
# Readinto at EOF should return 0 and not touch buffer.
|
|
buffer[:] = b"notspam"
|
|
s = os.readinto(fd, buffer)
|
|
self.assertEqual(type(s), int)
|
|
self.assertEqual(s, 0)
|
|
self.assertEqual(bytes(buffer), b"notspam")
|
|
s = os.readinto(fd, buffer)
|
|
self.assertEqual(s, 0)
|
|
self.assertEqual(bytes(buffer), b"notspam")
|
|
|
|
# Readinto a 0 length bytearray when at EOF should return 0
|
|
self.assertEqual(os.readinto(fd, bytearray()), 0)
|
|
|
|
# Readinto a 0 length bytearray with data available should return 0.
|
|
os.lseek(fd, 0, 0)
|
|
self.assertEqual(os.readinto(fd, bytearray()), 0)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'get_blocking'),
|
|
'needs os.get_blocking() and os.set_blocking()')
|
|
@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
|
|
@unittest.skipIf(support.is_emscripten, "set_blocking does not work correctly")
|
|
def test_readinto_non_blocking(self):
|
|
# Verify behavior of a readinto which would block on a non-blocking fd.
|
|
r, w = os.pipe()
|
|
try:
|
|
os.set_blocking(r, False)
|
|
with self.assertRaises(BlockingIOError):
|
|
os.readinto(r, bytearray(5))
|
|
|
|
# Pass some data through
|
|
os.write(w, b"spam")
|
|
self.assertEqual(os.readinto(r, bytearray(4)), 4)
|
|
|
|
# Still don't block or return 0.
|
|
with self.assertRaises(BlockingIOError):
|
|
os.readinto(r, bytearray(5))
|
|
|
|
# At EOF should return size 0
|
|
os.close(w)
|
|
w = None
|
|
self.assertEqual(os.readinto(r, bytearray(5)), 0)
|
|
self.assertEqual(os.readinto(r, bytearray(5)), 0) # Still EOF
|
|
|
|
finally:
|
|
os.close(r)
|
|
if w is not None:
|
|
os.close(w)
|
|
|
|
def test_readinto_badarg(self):
|
|
with open(os_helper.TESTFN, "w+b") as fobj:
|
|
fobj.write(b"spam")
|
|
fobj.flush()
|
|
fd = fobj.fileno()
|
|
os.lseek(fd, 0, 0)
|
|
|
|
for bad_arg in ("test", bytes(), 14):
|
|
with self.subTest(f"bad buffer {type(bad_arg)}"):
|
|
with self.assertRaises(TypeError):
|
|
os.readinto(fd, bad_arg)
|
|
|
|
with self.subTest("doesn't work on file objects"):
|
|
with self.assertRaises(TypeError):
|
|
os.readinto(fobj, bytearray(5))
|
|
|
|
# takes two args
|
|
with self.assertRaises(TypeError):
|
|
os.readinto(fd)
|
|
|
|
# No data should have been read with the bad arguments.
|
|
buffer = bytearray(4)
|
|
s = os.readinto(fd, buffer)
|
|
self.assertEqual(s, 4)
|
|
self.assertEqual(buffer, b"spam")
|
|
|
|
@support.cpython_only
|
|
# Skip the test on 32-bit platforms: the number of bytes must fit in a
|
|
# Py_ssize_t type
|
|
@unittest.skipUnless(INT_MAX < PY_SSIZE_T_MAX,
|
|
"needs INT_MAX < PY_SSIZE_T_MAX")
|
|
@support.bigmemtest(size=INT_MAX + 10, memuse=1, dry_run=False)
|
|
def test_large_read(self, size):
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
create_file(os_helper.TESTFN, b'test')
|
|
|
|
# Issue #21932: Make sure that os.read() does not raise an
|
|
# OverflowError for size larger than INT_MAX
|
|
with open(os_helper.TESTFN, "rb") as fp:
|
|
data = os.read(fp.fileno(), size)
|
|
|
|
# The test does not try to read more than 2 GiB at once because the
|
|
# operating system is free to return less bytes than requested.
|
|
self.assertEqual(data, b'test')
|
|
|
|
|
|
@support.cpython_only
|
|
# Skip the test on 32-bit platforms: the number of bytes must fit in a
|
|
# Py_ssize_t type
|
|
@unittest.skipUnless(INT_MAX < PY_SSIZE_T_MAX,
|
|
"needs INT_MAX < PY_SSIZE_T_MAX")
|
|
@support.bigmemtest(size=INT_MAX + 10, memuse=1, dry_run=False)
|
|
def test_large_readinto(self, size):
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
create_file(os_helper.TESTFN, b'test')
|
|
|
|
# Issue #21932: For readinto the buffer contains the length rather than
|
|
# a length being passed explicitly to read, should still get capped to a
|
|
# valid size / not raise an OverflowError for sizes larger than INT_MAX.
|
|
buffer = bytearray(INT_MAX + 10)
|
|
with open(os_helper.TESTFN, "rb") as fp:
|
|
length = os.readinto(fp.fileno(), buffer)
|
|
|
|
# The test does not try to read more than 2 GiB at once because the
|
|
# operating system is free to return less bytes than requested.
|
|
self.assertEqual(length, 4)
|
|
self.assertEqual(buffer[:4], b'test')
|
|
|
|
def test_write(self):
|
|
# os.write() accepts bytes- and buffer-like objects but not strings
|
|
fd = os.open(os_helper.TESTFN, os.O_CREAT | os.O_WRONLY)
|
|
self.assertRaises(TypeError, os.write, fd, "beans")
|
|
os.write(fd, b"bacon\n")
|
|
os.write(fd, bytearray(b"eggs\n"))
|
|
os.write(fd, memoryview(b"spam\n"))
|
|
os.close(fd)
|
|
with open(os_helper.TESTFN, "rb") as fobj:
|
|
self.assertEqual(fobj.read().splitlines(),
|
|
[b"bacon", b"eggs", b"spam"])
|
|
|
|
def write_windows_console(self, *args):
|
|
retcode = subprocess.call(args,
|
|
# use a new console to not flood the test output
|
|
creationflags=subprocess.CREATE_NEW_CONSOLE,
|
|
# use a shell to hide the console window (SW_HIDE)
|
|
shell=True)
|
|
self.assertEqual(retcode, 0)
|
|
|
|
@unittest.skipUnless(sys.platform == 'win32',
|
|
'test specific to the Windows console')
|
|
def test_write_windows_console(self):
|
|
# Issue #11395: the Windows console returns an error (12: not enough
|
|
# space error) on writing into stdout if stdout mode is binary and the
|
|
# length is greater than 66,000 bytes (or less, depending on heap
|
|
# usage).
|
|
code = "print('x' * 100000)"
|
|
self.write_windows_console(sys.executable, "-c", code)
|
|
self.write_windows_console(sys.executable, "-u", "-c", code)
|
|
|
|
def fdopen_helper(self, *args):
|
|
fd = os.open(os_helper.TESTFN, os.O_RDONLY)
|
|
f = os.fdopen(fd, *args, encoding="utf-8")
|
|
f.close()
|
|
|
|
def test_fdopen(self):
|
|
fd = os.open(os_helper.TESTFN, os.O_CREAT|os.O_RDWR)
|
|
os.close(fd)
|
|
|
|
self.fdopen_helper()
|
|
self.fdopen_helper('r')
|
|
self.fdopen_helper('r', 100)
|
|
|
|
def test_replace(self):
|
|
TESTFN2 = os_helper.TESTFN + ".2"
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
self.addCleanup(os_helper.unlink, TESTFN2)
|
|
|
|
create_file(os_helper.TESTFN, b"1")
|
|
create_file(TESTFN2, b"2")
|
|
|
|
os.replace(os_helper.TESTFN, TESTFN2)
|
|
self.assertRaises(FileNotFoundError, os.stat, os_helper.TESTFN)
|
|
with open(TESTFN2, 'r', encoding='utf-8') as f:
|
|
self.assertEqual(f.read(), "1")
|
|
|
|
def test_open_keywords(self):
|
|
f = os.open(path=__file__, flags=os.O_RDONLY, mode=0o777,
|
|
dir_fd=None)
|
|
os.close(f)
|
|
|
|
def test_symlink_keywords(self):
|
|
symlink = support.get_attribute(os, "symlink")
|
|
try:
|
|
symlink(src='target', dst=os_helper.TESTFN,
|
|
target_is_directory=False, dir_fd=None)
|
|
except (NotImplementedError, OSError):
|
|
pass # No OS support or unprivileged user
|
|
|
|
@unittest.skipUnless(hasattr(os, 'copy_file_range'), 'test needs os.copy_file_range()')
|
|
def test_copy_file_range_invalid_values(self):
|
|
with self.assertRaises(ValueError):
|
|
os.copy_file_range(0, 1, -10)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'copy_file_range'), 'test needs os.copy_file_range()')
|
|
def test_copy_file_range(self):
|
|
TESTFN2 = os_helper.TESTFN + ".3"
|
|
data = b'0123456789'
|
|
|
|
create_file(os_helper.TESTFN, data)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
in_file = open(os_helper.TESTFN, 'rb')
|
|
self.addCleanup(in_file.close)
|
|
in_fd = in_file.fileno()
|
|
|
|
out_file = open(TESTFN2, 'w+b')
|
|
self.addCleanup(os_helper.unlink, TESTFN2)
|
|
self.addCleanup(out_file.close)
|
|
out_fd = out_file.fileno()
|
|
|
|
try:
|
|
i = os.copy_file_range(in_fd, out_fd, 5)
|
|
except OSError as e:
|
|
# Handle the case in which Python was compiled
|
|
# in a system with the syscall but without support
|
|
# in the kernel.
|
|
if e.errno != errno.ENOSYS:
|
|
raise
|
|
self.skipTest(e)
|
|
else:
|
|
# The number of copied bytes can be less than
|
|
# the number of bytes originally requested.
|
|
self.assertIn(i, range(0, 6));
|
|
|
|
with open(TESTFN2, 'rb') as in_file:
|
|
self.assertEqual(in_file.read(), data[:i])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'copy_file_range'), 'test needs os.copy_file_range()')
|
|
def test_copy_file_range_offset(self):
|
|
TESTFN4 = os_helper.TESTFN + ".4"
|
|
data = b'0123456789'
|
|
bytes_to_copy = 6
|
|
in_skip = 3
|
|
out_seek = 5
|
|
|
|
create_file(os_helper.TESTFN, data)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
in_file = open(os_helper.TESTFN, 'rb')
|
|
self.addCleanup(in_file.close)
|
|
in_fd = in_file.fileno()
|
|
|
|
out_file = open(TESTFN4, 'w+b')
|
|
self.addCleanup(os_helper.unlink, TESTFN4)
|
|
self.addCleanup(out_file.close)
|
|
out_fd = out_file.fileno()
|
|
|
|
try:
|
|
i = os.copy_file_range(in_fd, out_fd, bytes_to_copy,
|
|
offset_src=in_skip,
|
|
offset_dst=out_seek)
|
|
except OSError as e:
|
|
# Handle the case in which Python was compiled
|
|
# in a system with the syscall but without support
|
|
# in the kernel.
|
|
if e.errno != errno.ENOSYS:
|
|
raise
|
|
self.skipTest(e)
|
|
else:
|
|
# The number of copied bytes can be less than
|
|
# the number of bytes originally requested.
|
|
self.assertIn(i, range(0, bytes_to_copy+1));
|
|
|
|
with open(TESTFN4, 'rb') as in_file:
|
|
read = in_file.read()
|
|
# seeked bytes (5) are zero'ed
|
|
self.assertEqual(read[:out_seek], b'\x00'*out_seek)
|
|
# 012 are skipped (in_skip)
|
|
# 345678 are copied in the file (in_skip + bytes_to_copy)
|
|
self.assertEqual(read[out_seek:],
|
|
data[in_skip:in_skip+i])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'splice'), 'test needs os.splice()')
|
|
def test_splice_invalid_values(self):
|
|
with self.assertRaises(ValueError):
|
|
os.splice(0, 1, -10)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'splice'), 'test needs os.splice()')
|
|
@requires_splice_pipe
|
|
def test_splice(self):
|
|
TESTFN2 = os_helper.TESTFN + ".3"
|
|
data = b'0123456789'
|
|
|
|
create_file(os_helper.TESTFN, data)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
in_file = open(os_helper.TESTFN, 'rb')
|
|
self.addCleanup(in_file.close)
|
|
in_fd = in_file.fileno()
|
|
|
|
read_fd, write_fd = os.pipe()
|
|
self.addCleanup(lambda: os.close(read_fd))
|
|
self.addCleanup(lambda: os.close(write_fd))
|
|
|
|
try:
|
|
i = os.splice(in_fd, write_fd, 5)
|
|
except OSError as e:
|
|
# Handle the case in which Python was compiled
|
|
# in a system with the syscall but without support
|
|
# in the kernel.
|
|
if e.errno != errno.ENOSYS:
|
|
raise
|
|
self.skipTest(e)
|
|
else:
|
|
# The number of copied bytes can be less than
|
|
# the number of bytes originally requested.
|
|
self.assertIn(i, range(0, 6));
|
|
|
|
self.assertEqual(os.read(read_fd, 100), data[:i])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'splice'), 'test needs os.splice()')
|
|
@requires_splice_pipe
|
|
def test_splice_offset_in(self):
|
|
TESTFN4 = os_helper.TESTFN + ".4"
|
|
data = b'0123456789'
|
|
bytes_to_copy = 6
|
|
in_skip = 3
|
|
|
|
create_file(os_helper.TESTFN, data)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
in_file = open(os_helper.TESTFN, 'rb')
|
|
self.addCleanup(in_file.close)
|
|
in_fd = in_file.fileno()
|
|
|
|
read_fd, write_fd = os.pipe()
|
|
self.addCleanup(lambda: os.close(read_fd))
|
|
self.addCleanup(lambda: os.close(write_fd))
|
|
|
|
try:
|
|
i = os.splice(in_fd, write_fd, bytes_to_copy, offset_src=in_skip)
|
|
except OSError as e:
|
|
# Handle the case in which Python was compiled
|
|
# in a system with the syscall but without support
|
|
# in the kernel.
|
|
if e.errno != errno.ENOSYS:
|
|
raise
|
|
self.skipTest(e)
|
|
else:
|
|
# The number of copied bytes can be less than
|
|
# the number of bytes originally requested.
|
|
self.assertIn(i, range(0, bytes_to_copy+1));
|
|
|
|
read = os.read(read_fd, 100)
|
|
# 012 are skipped (in_skip)
|
|
# 345678 are copied in the file (in_skip + bytes_to_copy)
|
|
self.assertEqual(read, data[in_skip:in_skip+i])
|
|
|
|
@unittest.skipUnless(hasattr(os, 'splice'), 'test needs os.splice()')
|
|
@requires_splice_pipe
|
|
def test_splice_offset_out(self):
|
|
TESTFN4 = os_helper.TESTFN + ".4"
|
|
data = b'0123456789'
|
|
bytes_to_copy = 6
|
|
out_seek = 3
|
|
|
|
create_file(os_helper.TESTFN, data)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
read_fd, write_fd = os.pipe()
|
|
self.addCleanup(lambda: os.close(read_fd))
|
|
self.addCleanup(lambda: os.close(write_fd))
|
|
os.write(write_fd, data)
|
|
|
|
out_file = open(TESTFN4, 'w+b')
|
|
self.addCleanup(os_helper.unlink, TESTFN4)
|
|
self.addCleanup(out_file.close)
|
|
out_fd = out_file.fileno()
|
|
|
|
try:
|
|
i = os.splice(read_fd, out_fd, bytes_to_copy, offset_dst=out_seek)
|
|
except OSError as e:
|
|
# Handle the case in which Python was compiled
|
|
# in a system with the syscall but without support
|
|
# in the kernel.
|
|
if e.errno != errno.ENOSYS:
|
|
raise
|
|
self.skipTest(e)
|
|
else:
|
|
# The number of copied bytes can be less than
|
|
# the number of bytes originally requested.
|
|
self.assertIn(i, range(0, bytes_to_copy+1));
|
|
|
|
with open(TESTFN4, 'rb') as in_file:
|
|
read = in_file.read()
|
|
# seeked bytes (5) are zero'ed
|
|
self.assertEqual(read[:out_seek], b'\x00'*out_seek)
|
|
# 012 are skipped (in_skip)
|
|
# 345678 are copied in the file (in_skip + bytes_to_copy)
|
|
self.assertEqual(read[out_seek:], data[:i])
|
|
|
|
|
|
# Test attributes on return values from os.*stat* family.
|
|
class StatAttributeTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.fname = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, self.fname)
|
|
create_file(self.fname, b"ABC")
|
|
|
|
def check_stat_attributes(self, fname):
|
|
result = os.stat(fname)
|
|
|
|
# Make sure direct access works
|
|
self.assertEqual(result[stat.ST_SIZE], 3)
|
|
self.assertEqual(result.st_size, 3)
|
|
|
|
# Make sure all the attributes are there
|
|
members = dir(result)
|
|
for name in dir(stat):
|
|
if name[:3] == 'ST_':
|
|
attr = name.lower()
|
|
if name.endswith("TIME"):
|
|
def trunc(x): return int(x)
|
|
else:
|
|
def trunc(x): return x
|
|
self.assertEqual(trunc(getattr(result, attr)),
|
|
result[getattr(stat, name)])
|
|
self.assertIn(attr, members)
|
|
|
|
# Make sure that the st_?time and st_?time_ns fields roughly agree
|
|
# (they should always agree up to around tens-of-microseconds)
|
|
for name in 'st_atime st_mtime st_ctime'.split():
|
|
floaty = int(getattr(result, name) * 100000)
|
|
nanosecondy = getattr(result, name + "_ns") // 10000
|
|
self.assertAlmostEqual(floaty, nanosecondy, delta=2)
|
|
|
|
# Ensure both birthtime and birthtime_ns roughly agree, if present
|
|
try:
|
|
floaty = int(result.st_birthtime * 100000)
|
|
nanosecondy = result.st_birthtime_ns // 10000
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
self.assertAlmostEqual(floaty, nanosecondy, delta=2)
|
|
|
|
try:
|
|
result[200]
|
|
self.fail("No exception raised")
|
|
except IndexError:
|
|
pass
|
|
|
|
# Make sure that assignment fails
|
|
try:
|
|
result.st_mode = 1
|
|
self.fail("No exception raised")
|
|
except AttributeError:
|
|
pass
|
|
|
|
try:
|
|
result.st_rdev = 1
|
|
self.fail("No exception raised")
|
|
except (AttributeError, TypeError):
|
|
pass
|
|
|
|
try:
|
|
result.parrot = 1
|
|
self.fail("No exception raised")
|
|
except AttributeError:
|
|
pass
|
|
|
|
# Use the stat_result constructor with a too-short tuple.
|
|
try:
|
|
result2 = os.stat_result((10,))
|
|
self.fail("No exception raised")
|
|
except TypeError:
|
|
pass
|
|
|
|
# Use the constructor with a too-long tuple.
|
|
try:
|
|
result2 = os.stat_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
|
|
except TypeError:
|
|
pass
|
|
|
|
def test_stat_attributes(self):
|
|
self.check_stat_attributes(self.fname)
|
|
|
|
def test_stat_attributes_bytes(self):
|
|
try:
|
|
fname = self.fname.encode(sys.getfilesystemencoding())
|
|
except UnicodeEncodeError:
|
|
self.skipTest("cannot encode %a for the filesystem" % self.fname)
|
|
self.check_stat_attributes(fname)
|
|
|
|
def test_stat_result_pickle(self):
|
|
result = os.stat(self.fname)
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
with self.subTest(f'protocol {proto}'):
|
|
p = pickle.dumps(result, proto)
|
|
self.assertIn(b'stat_result', p)
|
|
if proto < 4:
|
|
self.assertIn(b'cos\nstat_result\n', p)
|
|
unpickled = pickle.loads(p)
|
|
self.assertEqual(result, unpickled)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'statvfs'), 'test needs os.statvfs()')
|
|
def test_statvfs_attributes(self):
|
|
result = os.statvfs(self.fname)
|
|
|
|
# Make sure direct access works
|
|
self.assertEqual(result.f_bfree, result[3])
|
|
|
|
# Make sure all the attributes are there.
|
|
members = ('bsize', 'frsize', 'blocks', 'bfree', 'bavail', 'files',
|
|
'ffree', 'favail', 'flag', 'namemax')
|
|
for value, member in enumerate(members):
|
|
self.assertEqual(getattr(result, 'f_' + member), result[value])
|
|
|
|
self.assertTrue(isinstance(result.f_fsid, int))
|
|
|
|
# Test that the size of the tuple doesn't change
|
|
self.assertEqual(len(result), 10)
|
|
|
|
# Make sure that assignment really fails
|
|
try:
|
|
result.f_bfree = 1
|
|
self.fail("No exception raised")
|
|
except AttributeError:
|
|
pass
|
|
|
|
try:
|
|
result.parrot = 1
|
|
self.fail("No exception raised")
|
|
except AttributeError:
|
|
pass
|
|
|
|
# Use the constructor with a too-short tuple.
|
|
try:
|
|
result2 = os.statvfs_result((10,))
|
|
self.fail("No exception raised")
|
|
except TypeError:
|
|
pass
|
|
|
|
# Use the constructor with a too-long tuple.
|
|
try:
|
|
result2 = os.statvfs_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
|
|
except TypeError:
|
|
pass
|
|
|
|
@unittest.skipUnless(hasattr(os, 'statvfs'),
|
|
"need os.statvfs()")
|
|
def test_statvfs_result_pickle(self):
|
|
result = os.statvfs(self.fname)
|
|
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
p = pickle.dumps(result, proto)
|
|
self.assertIn(b'statvfs_result', p)
|
|
if proto < 4:
|
|
self.assertIn(b'cos\nstatvfs_result\n', p)
|
|
unpickled = pickle.loads(p)
|
|
self.assertEqual(result, unpickled)
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
def test_1686475(self):
|
|
# Verify that an open file can be stat'ed
|
|
try:
|
|
os.stat(r"c:\pagefile.sys")
|
|
except FileNotFoundError:
|
|
self.skipTest(r'c:\pagefile.sys does not exist')
|
|
except OSError as e:
|
|
self.fail("Could not stat pagefile.sys")
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
|
|
def test_15261(self):
|
|
# Verify that stat'ing a closed fd does not cause crash
|
|
r, w = os.pipe()
|
|
try:
|
|
os.stat(r) # should not raise error
|
|
finally:
|
|
os.close(r)
|
|
os.close(w)
|
|
with self.assertRaises(OSError) as ctx:
|
|
os.stat(r)
|
|
self.assertEqual(ctx.exception.errno, errno.EBADF)
|
|
|
|
def check_file_attributes(self, result):
|
|
self.assertTrue(hasattr(result, 'st_file_attributes'))
|
|
self.assertTrue(isinstance(result.st_file_attributes, int))
|
|
self.assertTrue(0 <= result.st_file_attributes <= 0xFFFFFFFF)
|
|
|
|
@unittest.skipUnless(sys.platform == "win32",
|
|
"st_file_attributes is Win32 specific")
|
|
def test_file_attributes(self):
|
|
# test file st_file_attributes (FILE_ATTRIBUTE_DIRECTORY not set)
|
|
result = os.stat(self.fname)
|
|
self.check_file_attributes(result)
|
|
self.assertEqual(
|
|
result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
|
|
0)
|
|
|
|
# test directory st_file_attributes (FILE_ATTRIBUTE_DIRECTORY set)
|
|
dirname = os_helper.TESTFN + "dir"
|
|
os.mkdir(dirname)
|
|
self.addCleanup(os.rmdir, dirname)
|
|
|
|
result = os.stat(dirname)
|
|
self.check_file_attributes(result)
|
|
self.assertEqual(
|
|
result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
|
|
stat.FILE_ATTRIBUTE_DIRECTORY)
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
def test_access_denied(self):
|
|
# Default to FindFirstFile WIN32_FIND_DATA when access is
|
|
# denied. See issue 28075.
|
|
# os.environ['TEMP'] should be located on a volume that
|
|
# supports file ACLs.
|
|
fname = os.path.join(os.environ['TEMP'], self.fname + "_access")
|
|
self.addCleanup(os_helper.unlink, fname)
|
|
create_file(fname, b'ABC')
|
|
# Deny the right to [S]YNCHRONIZE on the file to
|
|
# force CreateFile to fail with ERROR_ACCESS_DENIED.
|
|
DETACHED_PROCESS = 8
|
|
subprocess.check_call(
|
|
# bpo-30584: Use security identifier *S-1-5-32-545 instead
|
|
# of localized "Users" to not depend on the locale.
|
|
['icacls.exe', fname, '/deny', '*S-1-5-32-545:(S)'],
|
|
creationflags=DETACHED_PROCESS
|
|
)
|
|
result = os.stat(fname)
|
|
self.assertNotEqual(result.st_size, 0)
|
|
self.assertTrue(os.path.isfile(fname))
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
def test_stat_block_device(self):
|
|
# bpo-38030: os.stat fails for block devices
|
|
# Test a filename like "//./C:"
|
|
fname = "//./" + os.path.splitdrive(os.getcwd())[0]
|
|
result = os.stat(fname)
|
|
self.assertEqual(result.st_mode, stat.S_IFBLK)
|
|
|
|
|
|
class UtimeTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.dirname = os_helper.TESTFN
|
|
self.fname = os.path.join(self.dirname, "f1")
|
|
|
|
self.addCleanup(os_helper.rmtree, self.dirname)
|
|
os.mkdir(self.dirname)
|
|
create_file(self.fname)
|
|
|
|
def support_subsecond(self, filename):
|
|
# Heuristic to check if the filesystem supports timestamp with
|
|
# subsecond resolution: check if float and int timestamps are different
|
|
st = os.stat(filename)
|
|
return ((st.st_atime != st[7])
|
|
or (st.st_mtime != st[8])
|
|
or (st.st_ctime != st[9]))
|
|
|
|
def _test_utime(self, set_time, filename=None):
|
|
if not filename:
|
|
filename = self.fname
|
|
|
|
support_subsecond = self.support_subsecond(filename)
|
|
if support_subsecond:
|
|
# Timestamp with a resolution of 1 microsecond (10^-6).
|
|
#
|
|
# The resolution of the C internal function used by os.utime()
|
|
# depends on the platform: 1 sec, 1 us, 1 ns. Writing a portable
|
|
# test with a resolution of 1 ns requires more work:
|
|
# see the issue #15745.
|
|
atime_ns = 1002003000 # 1.002003 seconds
|
|
mtime_ns = 4005006000 # 4.005006 seconds
|
|
else:
|
|
# use a resolution of 1 second
|
|
atime_ns = 5 * 10**9
|
|
mtime_ns = 8 * 10**9
|
|
|
|
set_time(filename, (atime_ns, mtime_ns))
|
|
st = os.stat(filename)
|
|
|
|
if support.is_emscripten:
|
|
# Emscripten timestamps are roundtripped through a 53 bit integer of
|
|
# nanoseconds. If we want to represent ~50 years which is an 11
|
|
# digits number of seconds:
|
|
# 2*log10(60) + log10(24) + log10(365) + log10(60) + log10(50)
|
|
# is about 11. Because 53 * log10(2) is about 16, we only have 5
|
|
# digits worth of sub-second precision.
|
|
# Some day it would be good to fix this upstream.
|
|
delta=1e-5
|
|
self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-5)
|
|
self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-5)
|
|
self.assertAlmostEqual(st.st_atime_ns, atime_ns, delta=1e9 * 1e-5)
|
|
self.assertAlmostEqual(st.st_mtime_ns, mtime_ns, delta=1e9 * 1e-5)
|
|
else:
|
|
if support_subsecond:
|
|
self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-6)
|
|
self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-6)
|
|
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', 0) 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)
|
|
with os_helper.open_dir_fd(dirname) as dirfd:
|
|
# pass dir_fd to test utimensat(timespec) or futimesat(timeval)
|
|
os.utime(name, dir_fd=dirfd, ns=ns)
|
|
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.
|
|
# bpo-30649: Tolerate 50 ms for slow Windows buildbots.
|
|
#
|
|
# x86 Gentoo Refleaks 3.x once failed with dt=20.2 ms. So use
|
|
# also 50 ms on other platforms.
|
|
delta = 0.050
|
|
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 test_utime_nonexistent(self):
|
|
now = time.time()
|
|
filename = 'nonexistent'
|
|
with self.assertRaises(FileNotFoundError) as cm:
|
|
os.utime(filename, (now, now))
|
|
self.assertEqual(cm.exception.filename, filename)
|
|
|
|
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))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, [5, 5])
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, (5,))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, (5, 5, 5))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=[5, 5])
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=(5,))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=(5, 5, 5))
|
|
|
|
if os.utime not in os.supports_follow_symlinks:
|
|
with self.assertRaises(NotImplementedError):
|
|
os.utime(self.fname, (5, 5), follow_symlinks=False)
|
|
if os.utime not in os.supports_fd:
|
|
with open(self.fname, 'wb', 0) as fp:
|
|
with self.assertRaises(TypeError):
|
|
os.utime(fp.fileno(), (5, 5))
|
|
if os.utime not in os.supports_dir_fd:
|
|
with self.assertRaises(NotImplementedError):
|
|
os.utime(self.fname, (5, 5), dir_fd=0)
|
|
|
|
@support.cpython_only
|
|
def test_issue31577(self):
|
|
# The interpreter shouldn't crash in case utime() received a bad
|
|
# ns argument.
|
|
def get_bad_int(divmod_ret_val):
|
|
class BadInt:
|
|
def __divmod__(*args):
|
|
return divmod_ret_val
|
|
return BadInt()
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=(get_bad_int(42), 1))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=(get_bad_int(()), 1))
|
|
with self.assertRaises(TypeError):
|
|
os.utime(self.fname, ns=(get_bad_int((1, 2, 3)), 1))
|
|
|
|
|
|
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(unix_shell and os.path.exists(unix_shell),
|
|
'requires a shell')
|
|
@unittest.skipUnless(hasattr(os, 'popen'), "needs os.popen()")
|
|
@support.requires_subprocess()
|
|
def test_update2(self):
|
|
os.environ.clear()
|
|
os.environ.update(HELLO="World")
|
|
with os.popen("%s -c 'echo $HELLO'" % unix_shell) as popen:
|
|
value = popen.read().strip()
|
|
self.assertEqual(value, "World")
|
|
|
|
@unittest.skipUnless(unix_shell and os.path.exists(unix_shell),
|
|
'requires a shell')
|
|
@unittest.skipUnless(hasattr(os, 'popen'), "needs os.popen()")
|
|
@support.requires_subprocess()
|
|
def test_os_popen_iter(self):
|
|
with os.popen("%s -c 'echo \"line1\nline2\nline3\"'"
|
|
% unix_shell) 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
|
|
formatted_items = ", ".join(
|
|
f"{key!r}: {value!r}"
|
|
for key, value in env.items()
|
|
)
|
|
self.assertEqual(repr(env), f"environ({{{formatted_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)
|
|
|
|
@support.requires_subprocess()
|
|
def test_putenv_unsetenv(self):
|
|
name = "PYTHONTESTVAR"
|
|
value = "testvalue"
|
|
code = f'import os; print(repr(os.environ.get({name!r})))'
|
|
|
|
with os_helper.EnvironmentVarGuard() as env:
|
|
env.pop(name, None)
|
|
|
|
os.putenv(name, value)
|
|
proc = subprocess.run([sys.executable, '-c', code], check=True,
|
|
stdout=subprocess.PIPE, text=True)
|
|
self.assertEqual(proc.stdout.rstrip(), repr(value))
|
|
|
|
os.unsetenv(name)
|
|
proc = subprocess.run([sys.executable, '-c', code], check=True,
|
|
stdout=subprocess.PIPE, text=True)
|
|
self.assertEqual(proc.stdout.rstrip(), repr(None))
|
|
|
|
# On OS X < 10.6, unsetenv() doesn't return a value (bpo-13415).
|
|
@support.requires_mac_ver(10, 6)
|
|
def test_putenv_unsetenv_error(self):
|
|
# Empty variable name is invalid.
|
|
# "=" and null character are not allowed in a variable name.
|
|
for name in ('', '=name', 'na=me', 'name='):
|
|
self.assertRaises((OSError, ValueError), os.putenv, name, "value")
|
|
self.assertRaises((OSError, ValueError), os.unsetenv, name)
|
|
for name in ('name\0', 'na\0me'):
|
|
self.assertRaises(ValueError, os.putenv, name, "value")
|
|
self.assertRaises(ValueError, os.unsetenv, name)
|
|
|
|
if sys.platform == "win32":
|
|
# On Windows, an environment variable string ("name=value" string)
|
|
# is limited to 32,767 characters
|
|
longstr = 'x' * 32_768
|
|
self.assertRaises(ValueError, os.putenv, longstr, "1")
|
|
self.assertRaises(ValueError, os.putenv, "X", longstr)
|
|
self.assertRaises(ValueError, os.unsetenv, longstr)
|
|
|
|
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__)
|
|
|
|
def _test_environ_iteration(self, collection):
|
|
iterator = iter(collection)
|
|
new_key = "__new_key__"
|
|
|
|
next(iterator) # start iteration over os.environ.items
|
|
|
|
# add a new key in os.environ mapping
|
|
os.environ[new_key] = "test_environ_iteration"
|
|
|
|
try:
|
|
next(iterator) # force iteration over modified mapping
|
|
self.assertEqual(os.environ[new_key], "test_environ_iteration")
|
|
finally:
|
|
del os.environ[new_key]
|
|
|
|
def test_iter_error_when_changing_os_environ(self):
|
|
self._test_environ_iteration(os.environ)
|
|
|
|
def test_iter_error_when_changing_os_environ_items(self):
|
|
self._test_environ_iteration(os.environ.items())
|
|
|
|
def test_iter_error_when_changing_os_environ_values(self):
|
|
self._test_environ_iteration(os.environ.values())
|
|
|
|
def _test_underlying_process_env(self, var, expected):
|
|
if not (unix_shell and os.path.exists(unix_shell)):
|
|
return
|
|
elif not support.has_subprocess_support:
|
|
return
|
|
|
|
with os.popen(f"{unix_shell} -c 'echo ${var}'") as popen:
|
|
value = popen.read().strip()
|
|
|
|
self.assertEqual(expected, value)
|
|
|
|
def test_or_operator(self):
|
|
overridden_key = '_TEST_VAR_'
|
|
original_value = 'original_value'
|
|
os.environ[overridden_key] = original_value
|
|
|
|
new_vars_dict = {'_A_': '1', '_B_': '2', overridden_key: '3'}
|
|
expected = dict(os.environ)
|
|
expected.update(new_vars_dict)
|
|
|
|
actual = os.environ | new_vars_dict
|
|
self.assertDictEqual(expected, actual)
|
|
self.assertEqual('3', actual[overridden_key])
|
|
|
|
new_vars_items = new_vars_dict.items()
|
|
self.assertIs(NotImplemented, os.environ.__or__(new_vars_items))
|
|
|
|
self._test_underlying_process_env('_A_', '')
|
|
self._test_underlying_process_env(overridden_key, original_value)
|
|
|
|
def test_ior_operator(self):
|
|
overridden_key = '_TEST_VAR_'
|
|
os.environ[overridden_key] = 'original_value'
|
|
|
|
new_vars_dict = {'_A_': '1', '_B_': '2', overridden_key: '3'}
|
|
expected = dict(os.environ)
|
|
expected.update(new_vars_dict)
|
|
|
|
os.environ |= new_vars_dict
|
|
self.assertEqual(expected, os.environ)
|
|
self.assertEqual('3', os.environ[overridden_key])
|
|
|
|
self._test_underlying_process_env('_A_', '1')
|
|
self._test_underlying_process_env(overridden_key, '3')
|
|
|
|
def test_ior_operator_invalid_dicts(self):
|
|
os_environ_copy = os.environ.copy()
|
|
with self.assertRaises(TypeError):
|
|
dict_with_bad_key = {1: '_A_'}
|
|
os.environ |= dict_with_bad_key
|
|
|
|
with self.assertRaises(TypeError):
|
|
dict_with_bad_val = {'_A_': 1}
|
|
os.environ |= dict_with_bad_val
|
|
|
|
# Check nothing was added.
|
|
self.assertEqual(os_environ_copy, os.environ)
|
|
|
|
def test_ior_operator_key_value_iterable(self):
|
|
overridden_key = '_TEST_VAR_'
|
|
os.environ[overridden_key] = 'original_value'
|
|
|
|
new_vars_items = (('_A_', '1'), ('_B_', '2'), (overridden_key, '3'))
|
|
expected = dict(os.environ)
|
|
expected.update(new_vars_items)
|
|
|
|
os.environ |= new_vars_items
|
|
self.assertEqual(expected, os.environ)
|
|
self.assertEqual('3', os.environ[overridden_key])
|
|
|
|
self._test_underlying_process_env('_A_', '1')
|
|
self._test_underlying_process_env(overridden_key, '3')
|
|
|
|
def test_ror_operator(self):
|
|
overridden_key = '_TEST_VAR_'
|
|
original_value = 'original_value'
|
|
os.environ[overridden_key] = original_value
|
|
|
|
new_vars_dict = {'_A_': '1', '_B_': '2', overridden_key: '3'}
|
|
expected = dict(new_vars_dict)
|
|
expected.update(os.environ)
|
|
|
|
actual = new_vars_dict | os.environ
|
|
self.assertDictEqual(expected, actual)
|
|
self.assertEqual(original_value, actual[overridden_key])
|
|
|
|
new_vars_items = new_vars_dict.items()
|
|
self.assertIs(NotImplemented, os.environ.__ror__(new_vars_items))
|
|
|
|
self._test_underlying_process_env('_A_', '')
|
|
self._test_underlying_process_env(overridden_key, original_value)
|
|
|
|
def test_reload_environ(self):
|
|
# Test os.reload_environ()
|
|
has_environb = hasattr(os, 'environb')
|
|
|
|
# Test with putenv() which doesn't update os.environ
|
|
os.environ['test_env'] = 'python_value'
|
|
os.putenv("test_env", "new_value")
|
|
self.assertEqual(os.environ['test_env'], 'python_value')
|
|
if has_environb:
|
|
self.assertEqual(os.environb[b'test_env'], b'python_value')
|
|
|
|
os.reload_environ()
|
|
self.assertEqual(os.environ['test_env'], 'new_value')
|
|
if has_environb:
|
|
self.assertEqual(os.environb[b'test_env'], b'new_value')
|
|
|
|
# Test with unsetenv() which doesn't update os.environ
|
|
os.unsetenv('test_env')
|
|
self.assertEqual(os.environ['test_env'], 'new_value')
|
|
if has_environb:
|
|
self.assertEqual(os.environb[b'test_env'], b'new_value')
|
|
|
|
os.reload_environ()
|
|
self.assertNotIn('test_env', os.environ)
|
|
if has_environb:
|
|
self.assertNotIn(b'test_env', os.environb)
|
|
|
|
if has_environb:
|
|
# test reload_environ() on os.environb with putenv()
|
|
os.environb[b'test_env'] = b'python_value2'
|
|
os.putenv("test_env", "new_value2")
|
|
self.assertEqual(os.environb[b'test_env'], b'python_value2')
|
|
self.assertEqual(os.environ['test_env'], 'python_value2')
|
|
|
|
os.reload_environ()
|
|
self.assertEqual(os.environb[b'test_env'], b'new_value2')
|
|
self.assertEqual(os.environ['test_env'], 'new_value2')
|
|
|
|
# test reload_environ() on os.environb with unsetenv()
|
|
os.unsetenv('test_env')
|
|
self.assertEqual(os.environb[b'test_env'], b'new_value2')
|
|
self.assertEqual(os.environ['test_env'], 'new_value2')
|
|
|
|
os.reload_environ()
|
|
self.assertNotIn(b'test_env', os.environb)
|
|
self.assertNotIn('test_env', os.environ)
|
|
|
|
class WalkTests(unittest.TestCase):
|
|
"""Tests for os.walk()."""
|
|
is_fwalk = False
|
|
|
|
# Wrapper to hide minor differences between os.walk and os.fwalk
|
|
# to tests both functions with the same code base
|
|
def walk(self, top, **kwargs):
|
|
if 'follow_symlinks' in kwargs:
|
|
kwargs['followlinks'] = kwargs.pop('follow_symlinks')
|
|
return os.walk(top, **kwargs)
|
|
|
|
def setUp(self):
|
|
join = os.path.join
|
|
self.addCleanup(os_helper.rmtree, os_helper.TESTFN)
|
|
|
|
# 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
|
|
# SUB21/ not readable
|
|
# tmp5
|
|
# link/ a symlink to TESTFN.2
|
|
# broken_link
|
|
# broken_link2
|
|
# broken_link3
|
|
# TEST2/
|
|
# tmp4 a lone file
|
|
self.walk_path = join(os_helper.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")
|
|
sub21_path = join(sub2_path, "SUB21")
|
|
self.tmp1_path = join(self.walk_path, "tmp1")
|
|
tmp2_path = join(self.sub1_path, "tmp2")
|
|
tmp3_path = join(sub2_path, "tmp3")
|
|
tmp5_path = join(sub21_path, "tmp3")
|
|
self.link_path = join(sub2_path, "link")
|
|
t2_path = join(os_helper.TESTFN, "TEST2")
|
|
tmp4_path = join(os_helper.TESTFN, "TEST2", "tmp4")
|
|
self.broken_link_path = join(sub2_path, "broken_link")
|
|
broken_link2_path = join(sub2_path, "broken_link2")
|
|
broken_link3_path = join(sub2_path, "broken_link3")
|
|
|
|
# Create stuff.
|
|
os.makedirs(self.sub11_path)
|
|
os.makedirs(sub2_path)
|
|
os.makedirs(sub21_path)
|
|
os.makedirs(t2_path)
|
|
|
|
for path in self.tmp1_path, tmp2_path, tmp3_path, tmp4_path, tmp5_path:
|
|
with open(path, "x", encoding='utf-8') as f:
|
|
f.write("I'm " + path + " and proud of it. Blame test_os.\n")
|
|
|
|
if os_helper.can_symlink():
|
|
os.symlink(os.path.abspath(t2_path), self.link_path)
|
|
os.symlink('broken', self.broken_link_path, True)
|
|
os.symlink(join('tmp3', 'broken'), broken_link2_path, True)
|
|
os.symlink(join('SUB21', 'tmp5'), broken_link3_path, True)
|
|
self.sub2_tree = (sub2_path, ["SUB21", "link"],
|
|
["broken_link", "broken_link2", "broken_link3",
|
|
"tmp3"])
|
|
else:
|
|
self.sub2_tree = (sub2_path, ["SUB21"], ["tmp3"])
|
|
|
|
os.chmod(sub21_path, 0)
|
|
try:
|
|
os.listdir(sub21_path)
|
|
except PermissionError:
|
|
self.addCleanup(os.chmod, sub21_path, stat.S_IRWXU)
|
|
else:
|
|
os.chmod(sub21_path, stat.S_IRWXU)
|
|
os.unlink(tmp5_path)
|
|
os.rmdir(sub21_path)
|
|
del self.sub2_tree[1][:1]
|
|
|
|
def test_walk_topdown(self):
|
|
# Walk top-down.
|
|
all = list(self.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()
|
|
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, walk_path=None):
|
|
if walk_path is None:
|
|
walk_path = self.walk_path
|
|
# Prune the search.
|
|
all = []
|
|
for root, dirs, files in self.walk(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()
|
|
all[1][1].sort()
|
|
self.assertEqual(all[1], self.sub2_tree)
|
|
|
|
def test_file_like_path(self):
|
|
self.test_walk_prune(FakePath(self.walk_path))
|
|
|
|
def test_walk_bottom_up(self):
|
|
# Walk bottom-up.
|
|
all = list(self.walk(self.walk_path, topdown=False))
|
|
|
|
self.assertEqual(len(all), 4, all)
|
|
# 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()
|
|
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 os_helper.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")
|
|
|
|
walk_it = self.walk(self.broken_link_path, follow_symlinks=True)
|
|
if self.is_fwalk:
|
|
self.assertRaises(FileNotFoundError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
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.assertEqual(errors, [])
|
|
dir1 = 'SUB1'
|
|
path1 = os.path.join(root, dir1)
|
|
path1new = os.path.join(root, dir1 + '.new')
|
|
os.rename(path1, path1new)
|
|
try:
|
|
roots = [r for r, d, f in walk_it]
|
|
self.assertTrue(errors)
|
|
self.assertNotIn(path1, roots)
|
|
self.assertNotIn(path1new, roots)
|
|
for dir2 in dirs:
|
|
if dir2 != dir1:
|
|
self.assertIn(os.path.join(root, dir2), roots)
|
|
finally:
|
|
os.rename(path1new, path1)
|
|
|
|
def test_walk_bad_dir2(self):
|
|
walk_it = self.walk('nonexisting')
|
|
if self.is_fwalk:
|
|
self.assertRaises(FileNotFoundError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
walk_it = self.walk('nonexisting', follow_symlinks=True)
|
|
if self.is_fwalk:
|
|
self.assertRaises(FileNotFoundError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
walk_it = self.walk(self.tmp1_path)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
walk_it = self.walk(self.tmp1_path, follow_symlinks=True)
|
|
if self.is_fwalk:
|
|
self.assertRaises(NotADirectoryError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
@unittest.skipUnless(hasattr(os, "mkfifo"), 'requires os.mkfifo()')
|
|
@unittest.skipIf(sys.platform == "vxworks",
|
|
"fifo requires special path on VxWorks")
|
|
def test_walk_named_pipe(self):
|
|
path = os_helper.TESTFN + '-pipe'
|
|
os.mkfifo(path)
|
|
self.addCleanup(os.unlink, path)
|
|
|
|
walk_it = self.walk(path)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
walk_it = self.walk(path, follow_symlinks=True)
|
|
if self.is_fwalk:
|
|
self.assertRaises(NotADirectoryError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
|
|
@unittest.skipUnless(hasattr(os, "mkfifo"), 'requires os.mkfifo()')
|
|
@unittest.skipIf(sys.platform == "vxworks",
|
|
"fifo requires special path on VxWorks")
|
|
def test_walk_named_pipe2(self):
|
|
path = os_helper.TESTFN + '-dir'
|
|
os.mkdir(path)
|
|
self.addCleanup(shutil.rmtree, path)
|
|
os.mkfifo(os.path.join(path, 'mypipe'))
|
|
|
|
errors = []
|
|
walk_it = self.walk(path, onerror=errors.append)
|
|
next(walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
self.assertEqual(errors, [])
|
|
|
|
errors = []
|
|
walk_it = self.walk(path, onerror=errors.append)
|
|
root, dirs, files = next(walk_it)
|
|
self.assertEqual(root, path)
|
|
self.assertEqual(dirs, [])
|
|
self.assertEqual(files, ['mypipe'])
|
|
dirs.extend(files)
|
|
files.clear()
|
|
if self.is_fwalk:
|
|
self.assertRaises(NotADirectoryError, next, walk_it)
|
|
self.assertRaises(StopIteration, next, walk_it)
|
|
if self.is_fwalk:
|
|
self.assertEqual(errors, [])
|
|
else:
|
|
self.assertEqual(len(errors), 1, errors)
|
|
self.assertIsInstance(errors[0], NotADirectoryError)
|
|
|
|
def test_walk_many_open_files(self):
|
|
depth = 30
|
|
base = os.path.join(os_helper.TESTFN, 'deep')
|
|
p = os.path.join(base, *(['d']*depth))
|
|
os.makedirs(p)
|
|
|
|
iters = [self.walk(base, topdown=False) for j in range(100)]
|
|
for i in range(depth + 1):
|
|
expected = (p, ['d'] if i else [], [])
|
|
for it in iters:
|
|
self.assertEqual(next(it), expected)
|
|
p = os.path.dirname(p)
|
|
|
|
iters = [self.walk(base, topdown=True) for j in range(100)]
|
|
p = base
|
|
for i in range(depth + 1):
|
|
expected = (p, ['d'] if i < depth else [], [])
|
|
for it in iters:
|
|
self.assertEqual(next(it), expected)
|
|
p = os.path.join(p, 'd')
|
|
|
|
def test_walk_above_recursion_limit(self):
|
|
depth = 50
|
|
os.makedirs(os.path.join(self.walk_path, *(['d'] * depth)))
|
|
with infinite_recursion(depth - 5):
|
|
all = list(self.walk(self.walk_path))
|
|
|
|
sub2_path = self.sub2_tree[0]
|
|
for root, dirs, files in all:
|
|
if root == sub2_path:
|
|
dirs.sort()
|
|
files.sort()
|
|
|
|
d_entries = []
|
|
d_path = self.walk_path
|
|
for _ in range(depth):
|
|
d_path = os.path.join(d_path, "d")
|
|
d_entries.append((d_path, ["d"], []))
|
|
d_entries[-1][1].clear()
|
|
|
|
# Sub-sequences where the order is known
|
|
sections = {
|
|
"SUB1": [
|
|
(self.sub1_path, ["SUB11"], ["tmp2"]),
|
|
(self.sub11_path, [], []),
|
|
],
|
|
"SUB2": [self.sub2_tree],
|
|
"d": d_entries,
|
|
}
|
|
|
|
# The ordering of sub-dirs is arbitrary but determines the order in
|
|
# which sub-sequences appear
|
|
dirs = all[0][1]
|
|
expected = [(self.walk_path, dirs, ["tmp1"])]
|
|
for d in dirs:
|
|
expected.extend(sections[d])
|
|
|
|
self.assertEqual(len(all), depth + 4)
|
|
self.assertEqual(sorted(dirs), ["SUB1", "SUB2", "d"])
|
|
self.assertEqual(all, expected)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fwalk'), "Test needs os.fwalk()")
|
|
class FwalkTests(WalkTests):
|
|
"""Tests for os.fwalk()."""
|
|
is_fwalk = True
|
|
|
|
def walk(self, top, **kwargs):
|
|
for root, dirs, files, root_fd in self.fwalk(top, **kwargs):
|
|
yield (root, dirs, files)
|
|
|
|
def fwalk(self, *args, **kwargs):
|
|
return os.fwalk(*args, **kwargs)
|
|
|
|
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 self.fwalk(**fwalk_kwargs):
|
|
self.assertIn(root, expected)
|
|
self.assertEqual(expected[root], (set(dirs), set(files)))
|
|
|
|
def test_compare_to_walk(self):
|
|
kwargs = {'top': os_helper.TESTFN}
|
|
self._compare_to_walk(kwargs, kwargs)
|
|
|
|
def test_dir_fd(self):
|
|
try:
|
|
fd = os.open(".", os.O_RDONLY)
|
|
walk_kwargs = {'top': os_helper.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 = os_helper.TESTFN, topdown, None
|
|
for root, dirs, files, rootfd in self.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))
|
|
|
|
@unittest.skipIf(
|
|
support.is_android, "dup return value is unpredictable on Android"
|
|
)
|
|
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 self.fwalk(os_helper.TESTFN):
|
|
pass
|
|
newfd = os.dup(1)
|
|
self.addCleanup(os.close, newfd)
|
|
self.assertEqual(newfd, minfd)
|
|
|
|
@unittest.skipIf(
|
|
support.is_android, "dup return value is unpredictable on Android"
|
|
)
|
|
def test_fd_finalization(self):
|
|
# Check that close()ing the fwalk() generator closes FDs
|
|
def getfd():
|
|
fd = os.dup(1)
|
|
os.close(fd)
|
|
return fd
|
|
for topdown in (False, True):
|
|
old_fd = getfd()
|
|
it = self.fwalk(os_helper.TESTFN, topdown=topdown)
|
|
self.assertEqual(getfd(), old_fd)
|
|
next(it)
|
|
self.assertGreater(getfd(), old_fd)
|
|
it.close()
|
|
self.assertEqual(getfd(), old_fd)
|
|
|
|
# fwalk() keeps file descriptors open
|
|
test_walk_many_open_files = None
|
|
|
|
|
|
class BytesWalkTests(WalkTests):
|
|
"""Tests for os.walk() with bytes."""
|
|
def walk(self, top, **kwargs):
|
|
if 'follow_symlinks' in kwargs:
|
|
kwargs['followlinks'] = kwargs.pop('follow_symlinks')
|
|
for broot, bdirs, bfiles in os.walk(os.fsencode(top), **kwargs):
|
|
root = os.fsdecode(broot)
|
|
dirs = list(map(os.fsdecode, bdirs))
|
|
files = list(map(os.fsdecode, bfiles))
|
|
yield (root, dirs, files)
|
|
bdirs[:] = list(map(os.fsencode, dirs))
|
|
bfiles[:] = list(map(os.fsencode, files))
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fwalk'), "Test needs os.fwalk()")
|
|
class BytesFwalkTests(FwalkTests):
|
|
"""Tests for os.walk() with bytes."""
|
|
def fwalk(self, top='.', *args, **kwargs):
|
|
for broot, bdirs, bfiles, topfd in os.fwalk(os.fsencode(top), *args, **kwargs):
|
|
root = os.fsdecode(broot)
|
|
dirs = list(map(os.fsdecode, bdirs))
|
|
files = list(map(os.fsdecode, bfiles))
|
|
yield (root, dirs, files, topfd)
|
|
bdirs[:] = list(map(os.fsencode, dirs))
|
|
bfiles[:] = list(map(os.fsencode, files))
|
|
|
|
|
|
class MakedirTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.mkdir(os_helper.TESTFN)
|
|
|
|
def test_makedir(self):
|
|
base = os_helper.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)
|
|
|
|
@unittest.skipIf(
|
|
support.is_wasi,
|
|
"WASI's umask is a stub."
|
|
)
|
|
def test_mode(self):
|
|
with os_helper.temp_umask(0o002):
|
|
base = os_helper.TESTFN
|
|
parent = os.path.join(base, 'dir1')
|
|
path = os.path.join(parent, 'dir2')
|
|
os.makedirs(path, 0o555)
|
|
self.assertTrue(os.path.exists(path))
|
|
self.assertTrue(os.path.isdir(path))
|
|
if os.name != 'nt':
|
|
self.assertEqual(os.stat(path).st_mode & 0o777, 0o555)
|
|
self.assertEqual(os.stat(parent).st_mode & 0o777, 0o775)
|
|
|
|
@unittest.skipIf(
|
|
support.is_wasi,
|
|
"WASI's umask is a stub."
|
|
)
|
|
def test_exist_ok_existing_directory(self):
|
|
path = os.path.join(os_helper.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)
|
|
|
|
@unittest.skipIf(
|
|
support.is_wasi,
|
|
"WASI's umask is a stub."
|
|
)
|
|
def test_exist_ok_s_isgid_directory(self):
|
|
path = os.path.join(os_helper.TESTFN, 'dir1')
|
|
S_ISGID = stat.S_ISGID
|
|
mode = 0o777
|
|
old_mask = os.umask(0o022)
|
|
try:
|
|
existing_testfn_mode = stat.S_IMODE(
|
|
os.lstat(os_helper.TESTFN).st_mode)
|
|
try:
|
|
os.chmod(os_helper.TESTFN, existing_testfn_mode | S_ISGID)
|
|
except PermissionError:
|
|
raise unittest.SkipTest('Cannot set S_ISGID for dir.')
|
|
if (os.lstat(os_helper.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 = os_helper.TESTFN
|
|
path = os.path.join(os_helper.TESTFN, 'dir1')
|
|
with open(path, 'w', encoding='utf-8') as f:
|
|
f.write('abc')
|
|
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)
|
|
|
|
@unittest.skipUnless(os.name == 'nt', "requires Windows")
|
|
def test_win32_mkdir_700(self):
|
|
base = os_helper.TESTFN
|
|
path = os.path.abspath(os.path.join(os_helper.TESTFN, 'dir'))
|
|
os.mkdir(path, mode=0o700)
|
|
out = subprocess.check_output(["cacls.exe", path, "/s"], encoding="oem")
|
|
os.rmdir(path)
|
|
out = out.strip().rsplit(" ", 1)[1]
|
|
self.assertEqual(
|
|
out,
|
|
'"D:P(A;OICI;FA;;;SY)(A;OICI;FA;;;BA)(A;OICI;FA;;;OW)"',
|
|
)
|
|
|
|
def tearDown(self):
|
|
path = os.path.join(os_helper.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 != os_helper.TESTFN:
|
|
path = os.path.dirname(path)
|
|
|
|
os.removedirs(path)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, "chown"), "requires os.chown()")
|
|
class ChownFileTests(unittest.TestCase):
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
os.mkdir(os_helper.TESTFN)
|
|
|
|
def test_chown_uid_gid_arguments_must_be_index(self):
|
|
stat = os.stat(os_helper.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, os_helper.TESTFN, value, gid)
|
|
self.assertRaises(TypeError, os.chown, os_helper.TESTFN, uid, value)
|
|
self.assertIsNone(os.chown(os_helper.TESTFN, uid, gid))
|
|
self.assertIsNone(os.chown(os_helper.TESTFN, -1, -1))
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getgroups'), 'need os.getgroups')
|
|
def test_chown_gid(self):
|
|
groups = os.getgroups()
|
|
if len(groups) < 2:
|
|
self.skipTest("test needs at least 2 groups")
|
|
|
|
gid_1, gid_2 = groups[:2]
|
|
uid = os.stat(os_helper.TESTFN).st_uid
|
|
|
|
os.chown(os_helper.TESTFN, uid, gid_1)
|
|
gid = os.stat(os_helper.TESTFN).st_gid
|
|
self.assertEqual(gid, gid_1)
|
|
|
|
os.chown(os_helper.TESTFN, uid, gid_2)
|
|
gid = os.stat(os_helper.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(os_helper.TESTFN).st_gid
|
|
os.chown(os_helper.TESTFN, uid_1, gid)
|
|
uid = os.stat(os_helper.TESTFN).st_uid
|
|
self.assertEqual(uid, uid_1)
|
|
os.chown(os_helper.TESTFN, uid_2, gid)
|
|
uid = os.stat(os_helper.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(os_helper.TESTFN).st_gid
|
|
with self.assertRaises(PermissionError):
|
|
os.chown(os_helper.TESTFN, uid_1, gid)
|
|
os.chown(os_helper.TESTFN, uid_2, gid)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
os.rmdir(os_helper.TESTFN)
|
|
|
|
|
|
class RemoveDirsTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.makedirs(os_helper.TESTFN)
|
|
|
|
def tearDown(self):
|
|
os_helper.rmtree(os_helper.TESTFN)
|
|
|
|
def test_remove_all(self):
|
|
dira = os.path.join(os_helper.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(os_helper.TESTFN))
|
|
|
|
def test_remove_partial(self):
|
|
dira = os.path.join(os_helper.TESTFN, 'dira')
|
|
os.mkdir(dira)
|
|
dirb = os.path.join(dira, 'dirb')
|
|
os.mkdir(dirb)
|
|
create_file(os.path.join(dira, 'file.txt'))
|
|
os.removedirs(dirb)
|
|
self.assertFalse(os.path.exists(dirb))
|
|
self.assertTrue(os.path.exists(dira))
|
|
self.assertTrue(os.path.exists(os_helper.TESTFN))
|
|
|
|
def test_remove_nothing(self):
|
|
dira = os.path.join(os_helper.TESTFN, 'dira')
|
|
os.mkdir(dira)
|
|
dirb = os.path.join(dira, 'dirb')
|
|
os.mkdir(dirb)
|
|
create_file(os.path.join(dirb, 'file.txt'))
|
|
with self.assertRaises(OSError):
|
|
os.removedirs(dirb)
|
|
self.assertTrue(os.path.exists(dirb))
|
|
self.assertTrue(os.path.exists(dira))
|
|
self.assertTrue(os.path.exists(os_helper.TESTFN))
|
|
|
|
|
|
@unittest.skipIf(support.is_wasi, "WASI has no /dev/null")
|
|
class DevNullTests(unittest.TestCase):
|
|
def test_devnull(self):
|
|
with open(os.devnull, 'wb', 0) 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)
|
|
self.assertIsInstance(data1, bytes)
|
|
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), count)
|
|
return stdout
|
|
|
|
def test_urandom_subprocess(self):
|
|
data1 = self.get_urandom_subprocess(16)
|
|
data2 = self.get_urandom_subprocess(16)
|
|
self.assertNotEqual(data1, data2)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getrandom'), 'need os.getrandom()')
|
|
class GetRandomTests(unittest.TestCase):
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
try:
|
|
os.getrandom(1)
|
|
except OSError as exc:
|
|
if exc.errno == errno.ENOSYS:
|
|
# Python compiled on a more recent Linux version
|
|
# than the current Linux kernel
|
|
raise unittest.SkipTest("getrandom() syscall fails with ENOSYS")
|
|
else:
|
|
raise
|
|
|
|
def test_getrandom_type(self):
|
|
data = os.getrandom(16)
|
|
self.assertIsInstance(data, bytes)
|
|
self.assertEqual(len(data), 16)
|
|
|
|
def test_getrandom0(self):
|
|
empty = os.getrandom(0)
|
|
self.assertEqual(empty, b'')
|
|
|
|
def test_getrandom_random(self):
|
|
self.assertTrue(hasattr(os, 'GRND_RANDOM'))
|
|
|
|
# Don't test os.getrandom(1, os.GRND_RANDOM) to not consume the rare
|
|
# resource /dev/random
|
|
|
|
def test_getrandom_nonblock(self):
|
|
# The call must not fail. Check also that the flag exists
|
|
try:
|
|
os.getrandom(1, os.GRND_NONBLOCK)
|
|
except BlockingIOError:
|
|
# System urandom is not initialized yet
|
|
pass
|
|
|
|
def test_getrandom_value(self):
|
|
data1 = os.getrandom(16)
|
|
data2 = os.getrandom(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")
|
|
@unittest.skipIf(sys.platform == "vxworks",
|
|
"VxWorks can't set RLIMIT_NOFILE to 1")
|
|
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.
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
create_file(os_helper.TESTFN, b"x" * 256)
|
|
|
|
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:
|
|
new_fd = f.fileno()
|
|
# Issue #26935: posix allows new_fd and fd to be equal but
|
|
# some libc implementations have dup2 return an error in this
|
|
# case.
|
|
if new_fd != fd:
|
|
os.dup2(new_fd, fd)
|
|
sys.stdout.buffer.write(os.urandom(4))
|
|
sys.stdout.buffer.write(os.urandom(4))
|
|
""".format(TESTFN=os_helper.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
|
|
|
|
@unittest.skipUnless(hasattr(os, 'execv'),
|
|
"need os.execv()")
|
|
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_execv_with_bad_arglist(self):
|
|
self.assertRaises(ValueError, os.execv, 'notepad', ())
|
|
self.assertRaises(ValueError, os.execv, 'notepad', [])
|
|
self.assertRaises(ValueError, os.execv, 'notepad', ('',))
|
|
self.assertRaises(ValueError, os.execv, 'notepad', [''])
|
|
|
|
def test_execvpe_with_bad_arglist(self):
|
|
self.assertRaises(ValueError, os.execvpe, 'notepad', [], None)
|
|
self.assertRaises(ValueError, os.execvpe, 'notepad', [], {})
|
|
self.assertRaises(ValueError, os.execvpe, 'notepad', [''], {})
|
|
|
|
@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)
|
|
|
|
def test_execve_invalid_env(self):
|
|
args = [sys.executable, '-c', 'pass']
|
|
|
|
# null character in the environment variable name
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT\0VEGETABLE"] = "cabbage"
|
|
with self.assertRaises(ValueError):
|
|
os.execve(args[0], args, newenv)
|
|
|
|
# null character in the environment variable value
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "orange\0VEGETABLE=cabbage"
|
|
with self.assertRaises(ValueError):
|
|
os.execve(args[0], args, newenv)
|
|
|
|
# equal character in the environment variable name
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT=ORANGE"] = "lemon"
|
|
with self.assertRaises(ValueError):
|
|
os.execve(args[0], args, newenv)
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32-specific test")
|
|
def test_execve_with_empty_path(self):
|
|
# bpo-32890: Check GetLastError() misuse
|
|
try:
|
|
os.execve('', ['arg'], {})
|
|
except OSError as e:
|
|
self.assertTrue(e.winerror is None or e.winerror != 0)
|
|
else:
|
|
self.fail('No OSError raised')
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32ErrorTests(unittest.TestCase):
|
|
def setUp(self):
|
|
try:
|
|
os.stat(os_helper.TESTFN)
|
|
except FileNotFoundError:
|
|
exists = False
|
|
except OSError as exc:
|
|
exists = True
|
|
self.fail("file %s must not exist; os.stat failed with %s"
|
|
% (os_helper.TESTFN, exc))
|
|
else:
|
|
self.fail("file %s must not exist" % os_helper.TESTFN)
|
|
|
|
def test_rename(self):
|
|
self.assertRaises(OSError, os.rename, os_helper.TESTFN, os_helper.TESTFN+".bak")
|
|
|
|
def test_remove(self):
|
|
self.assertRaises(OSError, os.remove, os_helper.TESTFN)
|
|
|
|
def test_chdir(self):
|
|
self.assertRaises(OSError, os.chdir, os_helper.TESTFN)
|
|
|
|
def test_mkdir(self):
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
with open(os_helper.TESTFN, "x") as f:
|
|
self.assertRaises(OSError, os.mkdir, os_helper.TESTFN)
|
|
|
|
def test_utime(self):
|
|
self.assertRaises(OSError, os.utime, os_helper.TESTFN, None)
|
|
|
|
def test_chmod(self):
|
|
self.assertRaises(OSError, os.chmod, os_helper.TESTFN, 0)
|
|
|
|
|
|
@unittest.skipIf(support.is_wasi, "Cannot create invalid FD on WASI.")
|
|
class TestInvalidFD(unittest.TestCase):
|
|
singles = ["fchdir", "dup", "fstat", "fstatvfs", "tcgetpgrp", "ttyname"]
|
|
singles_fildes = {"fchdir"}
|
|
# systemd-nspawn --suppress-sync=true does not verify fd passed
|
|
# fdatasync() and fsync(), and always returns success
|
|
if not support.in_systemd_nspawn_sync_suppressed():
|
|
singles += ["fdatasync", "fsync"]
|
|
singles_fildes |= {"fdatasync", "fsync"}
|
|
#singles.append("close")
|
|
#We omit close because it doesn't raise an exception on some platforms
|
|
def get_single(f):
|
|
def helper(self):
|
|
if hasattr(os, f):
|
|
self.check(getattr(os, f))
|
|
if f in self.singles_fildes:
|
|
self.check_bool(getattr(os, f))
|
|
return helper
|
|
for f in singles:
|
|
locals()["test_"+f] = get_single(f)
|
|
|
|
def check(self, f, *args, **kwargs):
|
|
try:
|
|
f(os_helper.make_bad_fd(), *args, **kwargs)
|
|
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)
|
|
|
|
def check_bool(self, f, *args, **kwargs):
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("error", RuntimeWarning)
|
|
for fd in False, True:
|
|
with self.assertRaises(RuntimeWarning):
|
|
f(fd, *args, **kwargs)
|
|
|
|
def test_fdopen(self):
|
|
self.check(os.fdopen, encoding="utf-8")
|
|
self.check_bool(os.fdopen, encoding="utf-8")
|
|
|
|
@unittest.skipUnless(hasattr(os, 'isatty'), 'test needs os.isatty()')
|
|
def test_isatty(self):
|
|
self.assertEqual(os.isatty(os_helper.make_bad_fd()), False)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'closerange'), 'test needs os.closerange()')
|
|
def test_closerange(self):
|
|
fd = os_helper.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, 'dup2'), 'test needs os.dup2()')
|
|
def test_dup2_negative_fd(self):
|
|
valid_fd = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, valid_fd)
|
|
fds = [
|
|
valid_fd,
|
|
-1,
|
|
-2**31,
|
|
]
|
|
for fd, fd2 in itertools.product(fds, repeat=2):
|
|
if fd != fd2:
|
|
with self.subTest(fd=fd, fd2=fd2):
|
|
with self.assertRaises(OSError) as ctx:
|
|
os.dup2(fd, fd2)
|
|
self.assertEqual(ctx.exception.errno, errno.EBADF)
|
|
|
|
@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.assertIn("PC_NAME_MAX", os.pathconf_names)
|
|
self.check_bool(os.pathconf, "PC_NAME_MAX")
|
|
self.check_bool(os.fpathconf, "PC_NAME_MAX")
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fpathconf'), 'test needs os.fpathconf()')
|
|
@unittest.skipIf(
|
|
support.linked_to_musl(),
|
|
'musl pathconf ignores the file descriptor and returns a constant',
|
|
)
|
|
def test_fpathconf_bad_fd(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)
|
|
self.check_bool(os.truncate, 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, 'readinto'), 'test needs os.readinto()')
|
|
def test_readinto(self):
|
|
self.check(os.readinto, bytearray(5))
|
|
|
|
@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'])
|
|
|
|
@support.requires_subprocess()
|
|
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)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'link'), 'requires os.link')
|
|
class LinkTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.file1 = os_helper.TESTFN
|
|
self.file2 = os.path.join(os_helper.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):
|
|
create_file(file1)
|
|
|
|
try:
|
|
os.link(file1, file2)
|
|
except PermissionError as e:
|
|
self.skipTest('os.link(): %s' % e)
|
|
with open(file1, "rb") as f1, open(file2, "rb") 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):
|
|
# uid_t and gid_t are 32-bit unsigned integers on Linux
|
|
UID_OVERFLOW = (1 << 32)
|
|
GID_OVERFLOW = (1 << 32)
|
|
|
|
@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(TypeError, os.setuid, 'not an int')
|
|
self.assertRaises(OverflowError, os.setuid, self.UID_OVERFLOW)
|
|
|
|
@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(TypeError, os.setgid, 'not an int')
|
|
self.assertRaises(OverflowError, os.setgid, self.GID_OVERFLOW)
|
|
|
|
@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(TypeError, os.setegid, 'not an int')
|
|
self.assertRaises(OverflowError, os.seteuid, self.UID_OVERFLOW)
|
|
|
|
@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(TypeError, os.setegid, 'not an int')
|
|
self.assertRaises(OverflowError, os.setegid, self.GID_OVERFLOW)
|
|
|
|
@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(TypeError, os.setreuid, 'not an int', 0)
|
|
self.assertRaises(TypeError, os.setreuid, 0, 'not an int')
|
|
self.assertRaises(OverflowError, os.setreuid, self.UID_OVERFLOW, 0)
|
|
self.assertRaises(OverflowError, os.setreuid, 0, self.UID_OVERFLOW)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setreuid'), 'test needs os.setreuid()')
|
|
@support.requires_subprocess()
|
|
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()')
|
|
@support.requires_subprocess()
|
|
def test_setregid(self):
|
|
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
|
|
self.assertRaises(OSError, os.setregid, 0, 0)
|
|
self.assertRaises(TypeError, os.setregid, 'not an int', 0)
|
|
self.assertRaises(TypeError, os.setregid, 0, 'not an int')
|
|
self.assertRaises(OverflowError, os.setregid, self.GID_OVERFLOW, 0)
|
|
self.assertRaises(OverflowError, os.setregid, 0, self.GID_OVERFLOW)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'setregid'), 'test needs os.setregid()')
|
|
@support.requires_subprocess()
|
|
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 os_helper.TESTFN_UNENCODABLE:
|
|
self.dir = os_helper.TESTFN_UNENCODABLE
|
|
elif os_helper.TESTFN_NONASCII:
|
|
self.dir = os_helper.TESTFN_NONASCII
|
|
else:
|
|
self.dir = os_helper.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(os_helper.TESTFN_UNICODE)
|
|
if os_helper.TESTFN_UNENCODABLE:
|
|
add_filename(os_helper.TESTFN_UNENCODABLE)
|
|
if os_helper.TESTFN_NONASCII:
|
|
add_filename(os_helper.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:
|
|
os_helper.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:
|
|
# The root directory is not readable on Android, so use a directory
|
|
# we created ourselves.
|
|
os.chdir(self.dir)
|
|
self.assertEqual(set(os.listdir()), expected)
|
|
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)
|
|
|
|
@unittest.skipIf(mmap is None, "requires mmap")
|
|
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.
|
|
script = os.path.join(os.path.dirname(__file__),
|
|
"win_console_handler.py")
|
|
cmd = [sys.executable, script, tagname]
|
|
proc = subprocess.Popen(cmd,
|
|
creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
|
|
|
|
with proc:
|
|
# Let the interpreter startup before we send signals. See #3137.
|
|
for _ in support.sleeping_retry(support.SHORT_TIMEOUT):
|
|
if proc.poll() is None:
|
|
break
|
|
else:
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
proc.kill()
|
|
self.fail("Subprocess didn't finish initialization")
|
|
|
|
os.kill(proc.pid, event)
|
|
|
|
try:
|
|
# proc.send_signal(event) could also be done here.
|
|
# Allow time for the signal to be passed and the process to exit.
|
|
proc.wait(timeout=support.SHORT_TIMEOUT)
|
|
except subprocess.TimeoutExpired:
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
proc.kill()
|
|
self.fail("subprocess did not stop on {}".format(name))
|
|
|
|
@unittest.skip("subprocesses aren't inheriting Ctrl+C property")
|
|
@support.requires_subprocess()
|
|
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")
|
|
|
|
@support.requires_subprocess()
|
|
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(os_helper.TESTFN, dir_name)
|
|
file_name = 'FILE%d' % i
|
|
file_path = os.path.join(os_helper.TESTFN, file_name)
|
|
os.makedirs(dir_path)
|
|
with open(file_path, 'w', encoding='utf-8') 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(os_helper.TESTFN)
|
|
|
|
def test_listdir_no_extended_path(self):
|
|
"""Test when the path is not an "extended" path."""
|
|
# unicode
|
|
self.assertEqual(
|
|
sorted(os.listdir(os_helper.TESTFN)),
|
|
self.created_paths)
|
|
|
|
# bytes
|
|
self.assertEqual(
|
|
sorted(os.listdir(os.fsencode(os_helper.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(os_helper.TESTFN)
|
|
self.assertEqual(
|
|
sorted(os.listdir(path)),
|
|
self.created_paths)
|
|
|
|
# bytes
|
|
path = b'\\\\?\\' + os.fsencode(os.path.abspath(os_helper.TESTFN))
|
|
self.assertEqual(
|
|
sorted(os.listdir(path)),
|
|
[os.fsencode(path) for path in self.created_paths])
|
|
|
|
|
|
@unittest.skipUnless(os.name == "nt", "NT specific tests")
|
|
class Win32ListdriveTests(unittest.TestCase):
|
|
"""Test listdrive, listmounts and listvolume on Windows."""
|
|
|
|
def setUp(self):
|
|
# Get drives and volumes from fsutil
|
|
out = subprocess.check_output(
|
|
["fsutil.exe", "volume", "list"],
|
|
cwd=os.path.join(os.getenv("SystemRoot", "\\Windows"), "System32"),
|
|
encoding="mbcs",
|
|
errors="ignore",
|
|
)
|
|
lines = out.splitlines()
|
|
self.known_volumes = {l for l in lines if l.startswith('\\\\?\\')}
|
|
self.known_drives = {l for l in lines if l[1:] == ':\\'}
|
|
self.known_mounts = {l for l in lines if l[1:3] == ':\\'}
|
|
|
|
def test_listdrives(self):
|
|
drives = os.listdrives()
|
|
self.assertIsInstance(drives, list)
|
|
self.assertSetEqual(
|
|
self.known_drives,
|
|
self.known_drives & set(drives),
|
|
)
|
|
|
|
def test_listvolumes(self):
|
|
volumes = os.listvolumes()
|
|
self.assertIsInstance(volumes, list)
|
|
self.assertSetEqual(
|
|
self.known_volumes,
|
|
self.known_volumes & set(volumes),
|
|
)
|
|
|
|
def test_listmounts(self):
|
|
for volume in os.listvolumes():
|
|
try:
|
|
mounts = os.listmounts(volume)
|
|
except OSError as ex:
|
|
if support.verbose:
|
|
print("Skipping", volume, "because of", ex)
|
|
else:
|
|
self.assertIsInstance(mounts, list)
|
|
self.assertSetEqual(
|
|
set(mounts),
|
|
self.known_mounts & set(mounts),
|
|
)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'readlink'), 'needs os.readlink()')
|
|
class ReadlinkTests(unittest.TestCase):
|
|
filelink = 'readlinktest'
|
|
filelink_target = os.path.abspath(__file__)
|
|
filelinkb = os.fsencode(filelink)
|
|
filelinkb_target = os.fsencode(filelink_target)
|
|
|
|
def assertPathEqual(self, left, right):
|
|
left = os.path.normcase(left)
|
|
right = os.path.normcase(right)
|
|
if sys.platform == 'win32':
|
|
# Bad practice to blindly strip the prefix as it may be required to
|
|
# correctly refer to the file, but we're only comparing paths here.
|
|
has_prefix = lambda p: p.startswith(
|
|
b'\\\\?\\' if isinstance(p, bytes) else '\\\\?\\')
|
|
if has_prefix(left):
|
|
left = left[4:]
|
|
if has_prefix(right):
|
|
right = right[4:]
|
|
self.assertEqual(left, right)
|
|
|
|
def setUp(self):
|
|
self.assertTrue(os.path.exists(self.filelink_target))
|
|
self.assertTrue(os.path.exists(self.filelinkb_target))
|
|
self.assertFalse(os.path.exists(self.filelink))
|
|
self.assertFalse(os.path.exists(self.filelinkb))
|
|
|
|
def test_not_symlink(self):
|
|
filelink_target = FakePath(self.filelink_target)
|
|
self.assertRaises(OSError, os.readlink, self.filelink_target)
|
|
self.assertRaises(OSError, os.readlink, filelink_target)
|
|
|
|
def test_missing_link(self):
|
|
self.assertRaises(FileNotFoundError, os.readlink, 'missing-link')
|
|
self.assertRaises(FileNotFoundError, os.readlink,
|
|
FakePath('missing-link'))
|
|
|
|
@os_helper.skip_unless_symlink
|
|
def test_pathlike(self):
|
|
os.symlink(self.filelink_target, self.filelink)
|
|
self.addCleanup(os_helper.unlink, self.filelink)
|
|
filelink = FakePath(self.filelink)
|
|
self.assertPathEqual(os.readlink(filelink), self.filelink_target)
|
|
|
|
@os_helper.skip_unless_symlink
|
|
def test_pathlike_bytes(self):
|
|
os.symlink(self.filelinkb_target, self.filelinkb)
|
|
self.addCleanup(os_helper.unlink, self.filelinkb)
|
|
path = os.readlink(FakePath(self.filelinkb))
|
|
self.assertPathEqual(path, self.filelinkb_target)
|
|
self.assertIsInstance(path, bytes)
|
|
|
|
@os_helper.skip_unless_symlink
|
|
def test_bytes(self):
|
|
os.symlink(self.filelinkb_target, self.filelinkb)
|
|
self.addCleanup(os_helper.unlink, self.filelinkb)
|
|
path = os.readlink(self.filelinkb)
|
|
self.assertPathEqual(path, self.filelinkb_target)
|
|
self.assertIsInstance(path, bytes)
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
@os_helper.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)
|
|
|
|
def test_isdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
self.assertFalse(os.path.isdir(self.missing_link))
|
|
|
|
def test_rmdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
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)
|
|
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(os_helper.TESTFN)
|
|
level2 = os.path.join(level1, "level2")
|
|
level3 = os.path.join(level2, "level3")
|
|
self.addCleanup(os_helper.rmtree, level1)
|
|
|
|
os.mkdir(level1)
|
|
os.mkdir(level2)
|
|
os.mkdir(level3)
|
|
|
|
file1 = os.path.abspath(os.path.join(level1, "file1"))
|
|
create_file(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)
|
|
|
|
@unittest.skipUnless(os.path.lexists(r'C:\Users\All Users')
|
|
and os.path.exists(r'C:\ProgramData'),
|
|
'Test directories not found')
|
|
def test_29248(self):
|
|
# os.symlink() calls CreateSymbolicLink, which creates
|
|
# the reparse data buffer with the print name stored
|
|
# first, so the offset is always 0. CreateSymbolicLink
|
|
# stores the "PrintName" DOS path (e.g. "C:\") first,
|
|
# with an offset of 0, followed by the "SubstituteName"
|
|
# NT path (e.g. "\??\C:\"). The "All Users" link, on
|
|
# the other hand, seems to have been created manually
|
|
# with an inverted order.
|
|
target = os.readlink(r'C:\Users\All Users')
|
|
self.assertTrue(os.path.samefile(target, r'C:\ProgramData'))
|
|
|
|
def test_buffer_overflow(self):
|
|
# Older versions would have a buffer overflow when detecting
|
|
# whether a link source was a directory. This test ensures we
|
|
# no longer crash, but does not otherwise validate the behavior
|
|
segment = 'X' * 27
|
|
path = os.path.join(*[segment] * 10)
|
|
test_cases = [
|
|
# overflow with absolute src
|
|
('\\' + path, segment),
|
|
# overflow dest with relative src
|
|
(segment, path),
|
|
# overflow when joining src
|
|
(path[:180], path[:180]),
|
|
]
|
|
for src, dest in test_cases:
|
|
try:
|
|
os.symlink(src, dest)
|
|
except FileNotFoundError:
|
|
pass
|
|
else:
|
|
try:
|
|
os.remove(dest)
|
|
except OSError:
|
|
pass
|
|
# Also test with bytes, since that is a separate code path.
|
|
try:
|
|
os.symlink(os.fsencode(src), os.fsencode(dest))
|
|
except FileNotFoundError:
|
|
pass
|
|
else:
|
|
try:
|
|
os.remove(dest)
|
|
except OSError:
|
|
pass
|
|
|
|
def test_appexeclink(self):
|
|
root = os.path.expandvars(r'%LOCALAPPDATA%\Microsoft\WindowsApps')
|
|
if not os.path.isdir(root):
|
|
self.skipTest("test requires a WindowsApps directory")
|
|
|
|
aliases = [os.path.join(root, a)
|
|
for a in fnmatch.filter(os.listdir(root), '*.exe')]
|
|
|
|
for alias in aliases:
|
|
if support.verbose:
|
|
print()
|
|
print("Testing with", alias)
|
|
st = os.lstat(alias)
|
|
self.assertEqual(st, os.stat(alias))
|
|
self.assertFalse(stat.S_ISLNK(st.st_mode))
|
|
self.assertEqual(st.st_reparse_tag, stat.IO_REPARSE_TAG_APPEXECLINK)
|
|
self.assertTrue(os.path.isfile(alias))
|
|
# testing the first one we see is sufficient
|
|
break
|
|
else:
|
|
self.skipTest("test requires an app execution alias")
|
|
|
|
@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.lexists(self.junction)
|
|
|
|
def tearDown(self):
|
|
if os.path.lexists(self.junction):
|
|
os.unlink(self.junction)
|
|
|
|
def test_create_junction(self):
|
|
_winapi.CreateJunction(self.junction_target, self.junction)
|
|
self.assertTrue(os.path.lexists(self.junction))
|
|
self.assertTrue(os.path.exists(self.junction))
|
|
self.assertTrue(os.path.isdir(self.junction))
|
|
self.assertNotEqual(os.stat(self.junction), os.lstat(self.junction))
|
|
self.assertEqual(os.stat(self.junction), os.stat(self.junction_target))
|
|
|
|
# bpo-37834: Junctions are not recognized as links.
|
|
self.assertFalse(os.path.islink(self.junction))
|
|
self.assertEqual(os.path.normcase("\\\\?\\" + self.junction_target),
|
|
os.path.normcase(os.readlink(self.junction)))
|
|
|
|
def test_unlink_removes_junction(self):
|
|
_winapi.CreateJunction(self.junction_target, self.junction)
|
|
self.assertTrue(os.path.exists(self.junction))
|
|
self.assertTrue(os.path.lexists(self.junction))
|
|
|
|
os.unlink(self.junction)
|
|
self.assertFalse(os.path.exists(self.junction))
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32NtTests(unittest.TestCase):
|
|
def test_getfinalpathname_handles(self):
|
|
nt = import_helper.import_module('nt')
|
|
ctypes = import_helper.import_module('ctypes')
|
|
# Ruff false positive -- it thinks we're redefining `ctypes` here
|
|
import ctypes.wintypes # noqa: F811
|
|
|
|
kernel = ctypes.WinDLL('Kernel32.dll', use_last_error=True)
|
|
kernel.GetCurrentProcess.restype = ctypes.wintypes.HANDLE
|
|
|
|
kernel.GetProcessHandleCount.restype = ctypes.wintypes.BOOL
|
|
kernel.GetProcessHandleCount.argtypes = (ctypes.wintypes.HANDLE,
|
|
ctypes.wintypes.LPDWORD)
|
|
|
|
# This is a pseudo-handle that doesn't need to be closed
|
|
hproc = kernel.GetCurrentProcess()
|
|
|
|
handle_count = ctypes.wintypes.DWORD()
|
|
ok = kernel.GetProcessHandleCount(hproc, ctypes.byref(handle_count))
|
|
self.assertEqual(1, ok)
|
|
|
|
before_count = handle_count.value
|
|
|
|
# The first two test the error path, __file__ tests the success path
|
|
filenames = [
|
|
r'\\?\C:',
|
|
r'\\?\NUL',
|
|
r'\\?\CONIN',
|
|
__file__,
|
|
]
|
|
|
|
for _ in range(10):
|
|
for name in filenames:
|
|
try:
|
|
nt._getfinalpathname(name)
|
|
except Exception:
|
|
# Failure is expected
|
|
pass
|
|
try:
|
|
os.stat(name)
|
|
except Exception:
|
|
pass
|
|
|
|
ok = kernel.GetProcessHandleCount(hproc, ctypes.byref(handle_count))
|
|
self.assertEqual(1, ok)
|
|
|
|
handle_delta = handle_count.value - before_count
|
|
|
|
self.assertEqual(0, handle_delta)
|
|
|
|
@support.requires_subprocess()
|
|
def test_stat_unlink_race(self):
|
|
# bpo-46785: the implementation of os.stat() falls back to reading
|
|
# the parent directory if CreateFileW() fails with a permission
|
|
# error. If reading the parent directory fails because the file or
|
|
# directory are subsequently unlinked, or because the volume or
|
|
# share are no longer available, then the original permission error
|
|
# should not be restored.
|
|
filename = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, filename)
|
|
deadline = time.time() + 5
|
|
command = textwrap.dedent("""\
|
|
import os
|
|
import sys
|
|
import time
|
|
|
|
filename = sys.argv[1]
|
|
deadline = float(sys.argv[2])
|
|
|
|
while time.time() < deadline:
|
|
try:
|
|
with open(filename, "w") as f:
|
|
pass
|
|
except OSError:
|
|
pass
|
|
try:
|
|
os.remove(filename)
|
|
except OSError:
|
|
pass
|
|
""")
|
|
|
|
with subprocess.Popen([sys.executable, '-c', command, filename, str(deadline)]) as proc:
|
|
while time.time() < deadline:
|
|
try:
|
|
os.stat(filename)
|
|
except FileNotFoundError as e:
|
|
assert e.winerror == 2 # ERROR_FILE_NOT_FOUND
|
|
try:
|
|
proc.wait(1)
|
|
except subprocess.TimeoutExpired:
|
|
proc.terminate()
|
|
|
|
@support.requires_subprocess()
|
|
def test_stat_inaccessible_file(self):
|
|
filename = os_helper.TESTFN
|
|
ICACLS = os.path.expandvars(r"%SystemRoot%\System32\icacls.exe")
|
|
|
|
with open(filename, "wb") as f:
|
|
f.write(b'Test data')
|
|
|
|
stat1 = os.stat(filename)
|
|
|
|
try:
|
|
# Remove all permissions from the file
|
|
subprocess.check_output([ICACLS, filename, "/inheritance:r"],
|
|
stderr=subprocess.STDOUT)
|
|
except subprocess.CalledProcessError as ex:
|
|
if support.verbose:
|
|
print(ICACLS, filename, "/inheritance:r", "failed.")
|
|
print(ex.stdout.decode("oem", "replace").rstrip())
|
|
try:
|
|
os.unlink(filename)
|
|
except OSError:
|
|
pass
|
|
self.skipTest("Unable to create inaccessible file")
|
|
|
|
def cleanup():
|
|
# Give delete permission to the owner (us)
|
|
subprocess.check_output([ICACLS, filename, "/grant", "*WD:(D)"],
|
|
stderr=subprocess.STDOUT)
|
|
os.unlink(filename)
|
|
|
|
self.addCleanup(cleanup)
|
|
|
|
if support.verbose:
|
|
print("File:", filename)
|
|
print("stat with access:", stat1)
|
|
|
|
# First test - we shouldn't raise here, because we still have access to
|
|
# the directory and can extract enough information from its metadata.
|
|
stat2 = os.stat(filename)
|
|
|
|
if support.verbose:
|
|
print(" without access:", stat2)
|
|
|
|
# We may not get st_dev/st_ino, so ensure those are 0 or match
|
|
self.assertIn(stat2.st_dev, (0, stat1.st_dev))
|
|
self.assertIn(stat2.st_ino, (0, stat1.st_ino))
|
|
|
|
# st_mode and st_size should match (for a normal file, at least)
|
|
self.assertEqual(stat1.st_mode, stat2.st_mode)
|
|
self.assertEqual(stat1.st_size, stat2.st_size)
|
|
|
|
# st_ctime and st_mtime should be the same
|
|
self.assertEqual(stat1.st_ctime, stat2.st_ctime)
|
|
self.assertEqual(stat1.st_mtime, stat2.st_mtime)
|
|
|
|
# st_atime should be the same or later
|
|
self.assertGreaterEqual(stat1.st_atime, stat2.st_atime)
|
|
|
|
|
|
@os_helper.skip_unless_symlink
|
|
class NonLocalSymlinkTests(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
r"""
|
|
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 not win32_is_iot() 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))
|
|
|
|
|
|
@support.requires_subprocess()
|
|
class PidTests(unittest.TestCase):
|
|
@unittest.skipUnless(hasattr(os, 'getppid'), "test needs os.getppid")
|
|
def test_getppid(self):
|
|
p = subprocess.Popen([sys._base_executable, '-c',
|
|
'import os; print(os.getppid())'],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
stdout, error = p.communicate()
|
|
# We are the parent of our subprocess
|
|
self.assertEqual(error, b'')
|
|
self.assertEqual(int(stdout), os.getpid())
|
|
|
|
def check_waitpid(self, code, exitcode, callback=None):
|
|
if sys.platform == 'win32':
|
|
# On Windows, os.spawnv() simply joins arguments with spaces:
|
|
# arguments need to be quoted
|
|
args = [f'"{sys.executable}"', '-c', f'"{code}"']
|
|
else:
|
|
args = [sys.executable, '-c', code]
|
|
pid = os.spawnv(os.P_NOWAIT, sys.executable, args)
|
|
|
|
if callback is not None:
|
|
callback(pid)
|
|
|
|
# don't use support.wait_process() to test directly os.waitpid()
|
|
# and os.waitstatus_to_exitcode()
|
|
pid2, status = os.waitpid(pid, 0)
|
|
self.assertEqual(os.waitstatus_to_exitcode(status), exitcode)
|
|
self.assertEqual(pid2, pid)
|
|
|
|
def test_waitpid(self):
|
|
self.check_waitpid(code='pass', exitcode=0)
|
|
|
|
def test_waitstatus_to_exitcode(self):
|
|
exitcode = 23
|
|
code = f'import sys; sys.exit({exitcode})'
|
|
self.check_waitpid(code, exitcode=exitcode)
|
|
|
|
with self.assertRaises(TypeError):
|
|
os.waitstatus_to_exitcode(0.0)
|
|
|
|
@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')
|
|
def test_waitpid_windows(self):
|
|
# bpo-40138: test os.waitpid() and os.waitstatus_to_exitcode()
|
|
# with exit code larger than INT_MAX.
|
|
STATUS_CONTROL_C_EXIT = 0xC000013A
|
|
code = f'import _winapi; _winapi.ExitProcess({STATUS_CONTROL_C_EXIT})'
|
|
self.check_waitpid(code, exitcode=STATUS_CONTROL_C_EXIT)
|
|
|
|
@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')
|
|
def test_waitstatus_to_exitcode_windows(self):
|
|
max_exitcode = 2 ** 32 - 1
|
|
for exitcode in (0, 1, 5, max_exitcode):
|
|
self.assertEqual(os.waitstatus_to_exitcode(exitcode << 8),
|
|
exitcode)
|
|
|
|
# invalid values
|
|
with self.assertRaises(ValueError):
|
|
os.waitstatus_to_exitcode((max_exitcode + 1) << 8)
|
|
with self.assertRaises(OverflowError):
|
|
os.waitstatus_to_exitcode(-1)
|
|
|
|
# Skip the test on Windows
|
|
@unittest.skipUnless(hasattr(signal, 'SIGKILL'), 'need signal.SIGKILL')
|
|
def test_waitstatus_to_exitcode_kill(self):
|
|
code = f'import time; time.sleep({support.LONG_TIMEOUT})'
|
|
signum = signal.SIGKILL
|
|
|
|
def kill_process(pid):
|
|
os.kill(pid, signum)
|
|
|
|
self.check_waitpid(code, exitcode=-signum, callback=kill_process)
|
|
|
|
|
|
@support.requires_subprocess()
|
|
class SpawnTests(unittest.TestCase):
|
|
@staticmethod
|
|
def quote_args(args):
|
|
# On Windows, os.spawn* simply joins arguments with spaces:
|
|
# arguments need to be quoted
|
|
if os.name != 'nt':
|
|
return args
|
|
return [f'"{arg}"' if " " in arg.strip() else arg for arg in args]
|
|
|
|
def create_args(self, *, with_env=False, use_bytes=False):
|
|
self.exitcode = 17
|
|
|
|
filename = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, filename)
|
|
|
|
if not with_env:
|
|
code = 'import sys; sys.exit(%s)' % self.exitcode
|
|
else:
|
|
self.env = dict(os.environ)
|
|
# create an unique key
|
|
self.key = str(uuid.uuid4())
|
|
self.env[self.key] = self.key
|
|
# read the variable from os.environ to check that it exists
|
|
code = ('import sys, os; magic = os.environ[%r]; sys.exit(%s)'
|
|
% (self.key, self.exitcode))
|
|
|
|
with open(filename, "w", encoding="utf-8") as fp:
|
|
fp.write(code)
|
|
|
|
program = sys.executable
|
|
args = self.quote_args([program, filename])
|
|
if use_bytes:
|
|
program = os.fsencode(program)
|
|
args = [os.fsencode(a) for a in args]
|
|
self.env = {os.fsencode(k): os.fsencode(v)
|
|
for k, v in self.env.items()}
|
|
|
|
return program, args
|
|
|
|
@requires_os_func('spawnl')
|
|
def test_spawnl(self):
|
|
program, args = self.create_args()
|
|
exitcode = os.spawnl(os.P_WAIT, program, *args)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnle')
|
|
def test_spawnle(self):
|
|
program, args = self.create_args(with_env=True)
|
|
exitcode = os.spawnle(os.P_WAIT, program, *args, self.env)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnlp')
|
|
def test_spawnlp(self):
|
|
program, args = self.create_args()
|
|
exitcode = os.spawnlp(os.P_WAIT, program, *args)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnlpe')
|
|
def test_spawnlpe(self):
|
|
program, args = self.create_args(with_env=True)
|
|
exitcode = os.spawnlpe(os.P_WAIT, program, *args, self.env)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnv')
|
|
def test_spawnv(self):
|
|
program, args = self.create_args()
|
|
exitcode = os.spawnv(os.P_WAIT, program, args)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
# Test for PyUnicode_FSConverter()
|
|
exitcode = os.spawnv(os.P_WAIT, FakePath(program), args)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnve')
|
|
def test_spawnve(self):
|
|
program, args = self.create_args(with_env=True)
|
|
exitcode = os.spawnve(os.P_WAIT, program, args, self.env)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnvp')
|
|
def test_spawnvp(self):
|
|
program, args = self.create_args()
|
|
exitcode = os.spawnvp(os.P_WAIT, program, args)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnvpe')
|
|
def test_spawnvpe(self):
|
|
program, args = self.create_args(with_env=True)
|
|
exitcode = os.spawnvpe(os.P_WAIT, program, args, self.env)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnv')
|
|
def test_nowait(self):
|
|
program, args = self.create_args()
|
|
pid = os.spawnv(os.P_NOWAIT, program, args)
|
|
support.wait_process(pid, exitcode=self.exitcode)
|
|
|
|
@requires_os_func('spawnve')
|
|
def test_spawnve_bytes(self):
|
|
# Test bytes handling in parse_arglist and parse_envlist (#28114)
|
|
program, args = self.create_args(with_env=True, use_bytes=True)
|
|
exitcode = os.spawnve(os.P_WAIT, program, args, self.env)
|
|
self.assertEqual(exitcode, self.exitcode)
|
|
|
|
@requires_os_func('spawnl')
|
|
def test_spawnl_noargs(self):
|
|
program, __ = self.create_args()
|
|
self.assertRaises(ValueError, os.spawnl, os.P_NOWAIT, program)
|
|
self.assertRaises(ValueError, os.spawnl, os.P_NOWAIT, program, '')
|
|
|
|
@requires_os_func('spawnle')
|
|
def test_spawnle_noargs(self):
|
|
program, __ = self.create_args()
|
|
self.assertRaises(ValueError, os.spawnle, os.P_NOWAIT, program, {})
|
|
self.assertRaises(ValueError, os.spawnle, os.P_NOWAIT, program, '', {})
|
|
|
|
@requires_os_func('spawnv')
|
|
def test_spawnv_noargs(self):
|
|
program, __ = self.create_args()
|
|
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, program, ())
|
|
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, program, [])
|
|
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, program, ('',))
|
|
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, program, [''])
|
|
|
|
@requires_os_func('spawnve')
|
|
def test_spawnve_noargs(self):
|
|
program, __ = self.create_args()
|
|
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, program, (), {})
|
|
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, program, [], {})
|
|
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, program, ('',), {})
|
|
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, program, [''], {})
|
|
|
|
def _test_invalid_env(self, spawn):
|
|
program = sys.executable
|
|
args = self.quote_args([program, '-c', 'pass'])
|
|
|
|
# null character in the environment variable name
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT\0VEGETABLE"] = "cabbage"
|
|
try:
|
|
exitcode = spawn(os.P_WAIT, program, args, newenv)
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.assertEqual(exitcode, 127)
|
|
|
|
# null character in the environment variable value
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "orange\0VEGETABLE=cabbage"
|
|
try:
|
|
exitcode = spawn(os.P_WAIT, program, args, newenv)
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.assertEqual(exitcode, 127)
|
|
|
|
# equal character in the environment variable name
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT=ORANGE"] = "lemon"
|
|
try:
|
|
exitcode = spawn(os.P_WAIT, program, args, newenv)
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.assertEqual(exitcode, 127)
|
|
|
|
# equal character in the environment variable value
|
|
filename = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, filename)
|
|
with open(filename, "w", encoding="utf-8") as fp:
|
|
fp.write('import sys, os\n'
|
|
'if os.getenv("FRUIT") != "orange=lemon":\n'
|
|
' raise AssertionError')
|
|
|
|
args = self.quote_args([program, filename])
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "orange=lemon"
|
|
exitcode = spawn(os.P_WAIT, program, args, newenv)
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
@requires_os_func('spawnve')
|
|
def test_spawnve_invalid_env(self):
|
|
self._test_invalid_env(os.spawnve)
|
|
|
|
@requires_os_func('spawnvpe')
|
|
def test_spawnvpe_invalid_env(self):
|
|
self._test_invalid_env(os.spawnvpe)
|
|
|
|
|
|
# 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())
|
|
code = f"""if 1:
|
|
import os
|
|
os.setpriority(os.PRIO_PROCESS, os.getpid(), {base} + 1)
|
|
print(os.getpriority(os.PRIO_PROCESS, os.getpid()))
|
|
"""
|
|
|
|
# Subprocess inherits the current process' priority.
|
|
_, out, _ = assert_python_ok("-c", code)
|
|
new_prio = int(out)
|
|
# nice value cap is 19 for linux and 20 for FreeBSD
|
|
if base >= 19 and new_prio <= base:
|
|
raise unittest.SkipTest("unable to reliably test setpriority "
|
|
"at current nice level of %s" % base)
|
|
else:
|
|
self.assertEqual(new_prio, base + 1)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'sendfile'), "test needs os.sendfile()")
|
|
class TestSendfile(unittest.IsolatedAsyncioTestCase):
|
|
|
|
DATA = b"12345abcde" * 16 * 1024 # 160 KiB
|
|
SUPPORT_HEADERS_TRAILERS = (
|
|
not sys.platform.startswith(("linux", "android", "solaris", "sunos")))
|
|
requires_headers_trailers = unittest.skipUnless(SUPPORT_HEADERS_TRAILERS,
|
|
'requires headers and trailers support')
|
|
requires_32b = unittest.skipUnless(sys.maxsize < 2**32,
|
|
'test is only meaningful on 32-bit builds')
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
create_file(os_helper.TESTFN, cls.DATA)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
@staticmethod
|
|
async def chunks(reader):
|
|
while not reader.at_eof():
|
|
yield await reader.read()
|
|
|
|
async def handle_new_client(self, reader, writer):
|
|
self.server_buffer = b''.join([x async for x in self.chunks(reader)])
|
|
writer.close()
|
|
self.server.close() # The test server processes a single client only
|
|
|
|
async def asyncSetUp(self):
|
|
self.server_buffer = b''
|
|
self.server = await asyncio.start_server(self.handle_new_client,
|
|
socket_helper.HOSTv4)
|
|
server_name = self.server.sockets[0].getsockname()
|
|
self.client = socket.socket()
|
|
self.client.setblocking(False)
|
|
await asyncio.get_running_loop().sock_connect(self.client, server_name)
|
|
self.sockno = self.client.fileno()
|
|
self.file = open(os_helper.TESTFN, 'rb')
|
|
self.fileno = self.file.fileno()
|
|
|
|
async def asyncTearDown(self):
|
|
self.file.close()
|
|
self.client.close()
|
|
await self.server.wait_closed()
|
|
|
|
# Use the test subject instead of asyncio.loop.sendfile
|
|
@staticmethod
|
|
async def async_sendfile(*args, **kwargs):
|
|
return await asyncio.to_thread(os.sendfile, *args, **kwargs)
|
|
|
|
@staticmethod
|
|
async def sendfile_wrapper(*args, **kwargs):
|
|
"""A higher level wrapper representing how an application is
|
|
supposed to use sendfile().
|
|
"""
|
|
while True:
|
|
try:
|
|
return await TestSendfile.async_sendfile(*args, **kwargs)
|
|
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
|
|
|
|
async def test_send_whole_file(self):
|
|
# normal send
|
|
total_sent = 0
|
|
offset = 0
|
|
nbytes = 4096
|
|
while total_sent < len(self.DATA):
|
|
sent = await 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()
|
|
await self.server.wait_closed()
|
|
self.assertEqual(len(self.server_buffer), len(self.DATA))
|
|
self.assertEqual(self.server_buffer, self.DATA)
|
|
|
|
async 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 = await 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()
|
|
await self.server.wait_closed()
|
|
expected = self.DATA[len(self.DATA) // 2:]
|
|
self.assertEqual(total_sent, len(expected))
|
|
self.assertEqual(len(self.server_buffer), len(expected))
|
|
self.assertEqual(self.server_buffer, expected)
|
|
|
|
async def test_offset_overflow(self):
|
|
# specify an offset > file size
|
|
offset = len(self.DATA) + 4096
|
|
try:
|
|
sent = await self.async_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()
|
|
await self.server.wait_closed()
|
|
self.assertEqual(self.server_buffer, b'')
|
|
|
|
async def test_invalid_offset(self):
|
|
with self.assertRaises(OSError) as cm:
|
|
await self.async_sendfile(self.sockno, self.fileno, -1, 4096)
|
|
self.assertEqual(cm.exception.errno, errno.EINVAL)
|
|
|
|
async def test_keywords(self):
|
|
# Keyword arguments should be supported
|
|
await self.async_sendfile(out_fd=self.sockno, in_fd=self.fileno,
|
|
offset=0, count=4096)
|
|
if self.SUPPORT_HEADERS_TRAILERS:
|
|
await self.async_sendfile(out_fd=self.sockno, in_fd=self.fileno,
|
|
offset=0, count=4096,
|
|
headers=(), trailers=(), flags=0)
|
|
|
|
# --- headers / trailers tests
|
|
|
|
@requires_headers_trailers
|
|
async def test_headers(self):
|
|
total_sent = 0
|
|
expected_data = b"x" * 512 + b"y" * 256 + self.DATA[:-1]
|
|
sent = await self.async_sendfile(self.sockno, self.fileno, 0, 4096,
|
|
headers=[b"x" * 512, b"y" * 256])
|
|
self.assertLessEqual(sent, 512 + 256 + 4096)
|
|
total_sent += sent
|
|
offset = 4096
|
|
while total_sent < len(expected_data):
|
|
nbytes = min(len(expected_data) - total_sent, 4096)
|
|
sent = await self.sendfile_wrapper(self.sockno, self.fileno,
|
|
offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
self.assertLessEqual(sent, nbytes)
|
|
total_sent += sent
|
|
offset += sent
|
|
|
|
self.assertEqual(total_sent, len(expected_data))
|
|
self.client.close()
|
|
await self.server.wait_closed()
|
|
self.assertEqual(hash(self.server_buffer), hash(expected_data))
|
|
|
|
@requires_headers_trailers
|
|
async def test_trailers(self):
|
|
TESTFN2 = os_helper.TESTFN + "2"
|
|
file_data = b"abcdef"
|
|
|
|
self.addCleanup(os_helper.unlink, TESTFN2)
|
|
create_file(TESTFN2, file_data)
|
|
|
|
with open(TESTFN2, 'rb') as f:
|
|
await self.async_sendfile(self.sockno, f.fileno(), 0, 5,
|
|
trailers=[b"123456", b"789"])
|
|
self.client.close()
|
|
await self.server.wait_closed()
|
|
self.assertEqual(self.server_buffer, b"abcde123456789")
|
|
|
|
@requires_headers_trailers
|
|
@requires_32b
|
|
async def test_headers_overflow_32bits(self):
|
|
self.server.handler_instance.accumulate = False
|
|
with self.assertRaises(OSError) as cm:
|
|
await self.async_sendfile(self.sockno, self.fileno, 0, 0,
|
|
headers=[b"x" * 2**16] * 2**15)
|
|
self.assertEqual(cm.exception.errno, errno.EINVAL)
|
|
|
|
@requires_headers_trailers
|
|
@requires_32b
|
|
async def test_trailers_overflow_32bits(self):
|
|
self.server.handler_instance.accumulate = False
|
|
with self.assertRaises(OSError) as cm:
|
|
await self.async_sendfile(self.sockno, self.fileno, 0, 0,
|
|
trailers=[b"x" * 2**16] * 2**15)
|
|
self.assertEqual(cm.exception.errno, errno.EINVAL)
|
|
|
|
@requires_headers_trailers
|
|
@unittest.skipUnless(hasattr(os, 'SF_NODISKIO'),
|
|
'test needs os.SF_NODISKIO')
|
|
async def test_flags(self):
|
|
try:
|
|
await self.async_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(os_helper.TESTFN, "xb", 0) as fp:
|
|
try:
|
|
os.setxattr(fp.fileno(), b"user.test", b"")
|
|
except OSError:
|
|
return False
|
|
finally:
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
return True
|
|
|
|
|
|
@unittest.skipUnless(supports_extended_attributes(),
|
|
"no non-broken extended attribute support")
|
|
# Kernels < 2.6.39 don't respect setxattr flags.
|
|
@support.requires_linux_version(2, 6, 39)
|
|
class ExtendedAttributeTests(unittest.TestCase):
|
|
|
|
def _check_xattrs_str(self, s, getxattr, setxattr, removexattr, listxattr, **kwargs):
|
|
fn = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, fn)
|
|
create_file(fn)
|
|
|
|
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"*256, **kwargs)
|
|
self.assertEqual(getxattr(fn, s("user.test"), **kwargs), b"a"*256)
|
|
removexattr(fn, s("user.test"), **kwargs)
|
|
many = sorted("user.test{}".format(i) for i in range(32))
|
|
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):
|
|
self._check_xattrs_str(str, *args, **kwargs)
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
self._check_xattrs_str(os.fsencode, *args, **kwargs)
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
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", 0) as fp:
|
|
os.setxattr(fp.fileno(), *args)
|
|
def removexattr(path, *args):
|
|
with open(path, "wb", 0) 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(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:
|
|
known_errnos = [errno.EINVAL, errno.ENOTTY]
|
|
if sys.platform == "android":
|
|
# The Android testbed redirects the native stdout to a pipe,
|
|
# which returns a different error code.
|
|
known_errnos.append(errno.EACCES)
|
|
if sys.platform == "win32" or e.errno in known_errnos:
|
|
# 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)
|
|
|
|
@support.requires_subprocess()
|
|
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"], stderr=subprocess.DEVNULL, text=True
|
|
).split()
|
|
)
|
|
except (FileNotFoundError, subprocess.CalledProcessError,
|
|
PermissionError):
|
|
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)
|
|
|
|
@unittest.skipUnless(sys.platform == 'win32', 'Windows specific test')
|
|
def test_windows_fd(self):
|
|
"""Check if get_terminal_size() returns a meaningful value in Windows"""
|
|
try:
|
|
conout = open('conout$', 'w')
|
|
except OSError:
|
|
self.skipTest('failed to open conout$')
|
|
with conout:
|
|
size = os.get_terminal_size(conout.fileno())
|
|
|
|
self.assertGreaterEqual(size.columns, 0)
|
|
self.assertGreaterEqual(size.lines, 0)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'memfd_create'), 'requires os.memfd_create')
|
|
@support.requires_linux_version(3, 17)
|
|
class MemfdCreateTests(unittest.TestCase):
|
|
def test_memfd_create(self):
|
|
fd = os.memfd_create("Hi", os.MFD_CLOEXEC)
|
|
self.assertNotEqual(fd, -1)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertFalse(os.get_inheritable(fd))
|
|
with open(fd, "wb", closefd=False) as f:
|
|
f.write(b'memfd_create')
|
|
self.assertEqual(f.tell(), 12)
|
|
|
|
fd2 = os.memfd_create("Hi")
|
|
self.addCleanup(os.close, fd2)
|
|
self.assertFalse(os.get_inheritable(fd2))
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'eventfd'), 'requires os.eventfd')
|
|
@support.requires_linux_version(2, 6, 30)
|
|
class EventfdTests(unittest.TestCase):
|
|
def test_eventfd_initval(self):
|
|
def pack(value):
|
|
"""Pack as native uint64_t
|
|
"""
|
|
return struct.pack("@Q", value)
|
|
size = 8 # read/write 8 bytes
|
|
initval = 42
|
|
fd = os.eventfd(initval)
|
|
self.assertNotEqual(fd, -1)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertFalse(os.get_inheritable(fd))
|
|
|
|
# test with raw read/write
|
|
res = os.read(fd, size)
|
|
self.assertEqual(res, pack(initval))
|
|
|
|
os.write(fd, pack(23))
|
|
res = os.read(fd, size)
|
|
self.assertEqual(res, pack(23))
|
|
|
|
os.write(fd, pack(40))
|
|
os.write(fd, pack(2))
|
|
res = os.read(fd, size)
|
|
self.assertEqual(res, pack(42))
|
|
|
|
# test with eventfd_read/eventfd_write
|
|
os.eventfd_write(fd, 20)
|
|
os.eventfd_write(fd, 3)
|
|
res = os.eventfd_read(fd)
|
|
self.assertEqual(res, 23)
|
|
|
|
def test_eventfd_semaphore(self):
|
|
initval = 2
|
|
flags = os.EFD_CLOEXEC | os.EFD_SEMAPHORE | os.EFD_NONBLOCK
|
|
fd = os.eventfd(initval, flags)
|
|
self.assertNotEqual(fd, -1)
|
|
self.addCleanup(os.close, fd)
|
|
|
|
# semaphore starts has initval 2, two reads return '1'
|
|
res = os.eventfd_read(fd)
|
|
self.assertEqual(res, 1)
|
|
res = os.eventfd_read(fd)
|
|
self.assertEqual(res, 1)
|
|
# third read would block
|
|
with self.assertRaises(BlockingIOError):
|
|
os.eventfd_read(fd)
|
|
with self.assertRaises(BlockingIOError):
|
|
os.read(fd, 8)
|
|
|
|
# increase semaphore counter, read one
|
|
os.eventfd_write(fd, 1)
|
|
res = os.eventfd_read(fd)
|
|
self.assertEqual(res, 1)
|
|
# next read would block, too
|
|
with self.assertRaises(BlockingIOError):
|
|
os.eventfd_read(fd)
|
|
|
|
def test_eventfd_select(self):
|
|
flags = os.EFD_CLOEXEC | os.EFD_NONBLOCK
|
|
fd = os.eventfd(0, flags)
|
|
self.assertNotEqual(fd, -1)
|
|
self.addCleanup(os.close, fd)
|
|
|
|
# counter is zero, only writeable
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], 0)
|
|
self.assertEqual((rfd, wfd, xfd), ([], [fd], []))
|
|
|
|
# counter is non-zero, read and writeable
|
|
os.eventfd_write(fd, 23)
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], 0)
|
|
self.assertEqual((rfd, wfd, xfd), ([fd], [fd], []))
|
|
self.assertEqual(os.eventfd_read(fd), 23)
|
|
|
|
# counter at max, only readable
|
|
os.eventfd_write(fd, (2**64) - 2)
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], 0)
|
|
self.assertEqual((rfd, wfd, xfd), ([fd], [], []))
|
|
os.eventfd_read(fd)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'timerfd_create'), 'requires os.timerfd_create')
|
|
@unittest.skipIf(sys.platform == "android", "gh-124873: Test is flaky on Android")
|
|
@support.requires_linux_version(2, 6, 30)
|
|
class TimerfdTests(unittest.TestCase):
|
|
# 1 ms accuracy is reliably achievable on every platform except Android
|
|
# emulators, where we allow 10 ms (gh-108277).
|
|
if sys.platform == "android" and platform.android_ver().is_emulator:
|
|
CLOCK_RES_PLACES = 2
|
|
else:
|
|
CLOCK_RES_PLACES = 3
|
|
|
|
CLOCK_RES = 10 ** -CLOCK_RES_PLACES
|
|
CLOCK_RES_NS = 10 ** (9 - CLOCK_RES_PLACES)
|
|
|
|
def timerfd_create(self, *args, **kwargs):
|
|
fd = os.timerfd_create(*args, **kwargs)
|
|
self.assertGreaterEqual(fd, 0)
|
|
self.assertFalse(os.get_inheritable(fd))
|
|
self.addCleanup(os.close, fd)
|
|
return fd
|
|
|
|
def read_count_signaled(self, fd):
|
|
# read 8 bytes
|
|
data = os.read(fd, 8)
|
|
return int.from_bytes(data, byteorder=sys.byteorder)
|
|
|
|
def test_timerfd_initval(self):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
initial_expiration = 0.25
|
|
interval = 0.125
|
|
|
|
# 1st call
|
|
next_expiration, interval2 = os.timerfd_settime(fd, initial=initial_expiration, interval=interval)
|
|
self.assertAlmostEqual(interval2, 0.0, places=self.CLOCK_RES_PLACES)
|
|
self.assertAlmostEqual(next_expiration, 0.0, places=self.CLOCK_RES_PLACES)
|
|
|
|
# 2nd call
|
|
next_expiration, interval2 = os.timerfd_settime(fd, initial=initial_expiration, interval=interval)
|
|
self.assertAlmostEqual(interval2, interval, places=self.CLOCK_RES_PLACES)
|
|
self.assertAlmostEqual(next_expiration, initial_expiration, places=self.CLOCK_RES_PLACES)
|
|
|
|
# timerfd_gettime
|
|
next_expiration, interval2 = os.timerfd_gettime(fd)
|
|
self.assertAlmostEqual(interval2, interval, places=self.CLOCK_RES_PLACES)
|
|
self.assertAlmostEqual(next_expiration, initial_expiration, places=self.CLOCK_RES_PLACES)
|
|
|
|
def test_timerfd_non_blocking(self):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME, flags=os.TFD_NONBLOCK)
|
|
|
|
# 0.1 second later
|
|
initial_expiration = 0.1
|
|
os.timerfd_settime(fd, initial=initial_expiration, interval=0)
|
|
|
|
# read() raises OSError with errno is EAGAIN for non-blocking timer.
|
|
with self.assertRaises(OSError) as ctx:
|
|
self.read_count_signaled(fd)
|
|
self.assertEqual(ctx.exception.errno, errno.EAGAIN)
|
|
|
|
# Wait more than 0.1 seconds
|
|
time.sleep(initial_expiration + 0.1)
|
|
|
|
# confirm if timerfd is readable and read() returns 1 as bytes.
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
|
|
@unittest.skipIf(sys.platform.startswith('netbsd'),
|
|
"gh-131263: Skip on NetBSD due to system freeze "
|
|
"with negative timer values")
|
|
def test_timerfd_negative(self):
|
|
one_sec_in_nsec = 10**9
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
test_flags = [0, os.TFD_TIMER_ABSTIME]
|
|
if hasattr(os, 'TFD_TIMER_CANCEL_ON_SET'):
|
|
test_flags.append(os.TFD_TIMER_ABSTIME | os.TFD_TIMER_CANCEL_ON_SET)
|
|
|
|
# Any of 'initial' and 'interval' is negative value.
|
|
for initial, interval in ( (-1, 0), (1, -1), (-1, -1), (-0.1, 0), (1, -0.1), (-0.1, -0.1)):
|
|
for flags in test_flags:
|
|
with self.subTest(flags=flags, initial=initial, interval=interval):
|
|
with self.assertRaises(OSError) as context:
|
|
os.timerfd_settime(fd, flags=flags, initial=initial, interval=interval)
|
|
self.assertEqual(context.exception.errno, errno.EINVAL)
|
|
|
|
with self.assertRaises(OSError) as context:
|
|
initial_ns = int( one_sec_in_nsec * initial )
|
|
interval_ns = int( one_sec_in_nsec * interval )
|
|
os.timerfd_settime_ns(fd, flags=flags, initial=initial_ns, interval=interval_ns)
|
|
self.assertEqual(context.exception.errno, errno.EINVAL)
|
|
|
|
def test_timerfd_interval(self):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
# 1 second
|
|
initial_expiration = 1
|
|
# 0.5 second
|
|
interval = 0.5
|
|
|
|
os.timerfd_settime(fd, initial=initial_expiration, interval=interval)
|
|
|
|
# timerfd_gettime
|
|
next_expiration, interval2 = os.timerfd_gettime(fd)
|
|
self.assertAlmostEqual(interval2, interval, places=self.CLOCK_RES_PLACES)
|
|
self.assertAlmostEqual(next_expiration, initial_expiration, places=self.CLOCK_RES_PLACES)
|
|
|
|
count = 3
|
|
t = time.perf_counter()
|
|
for _ in range(count):
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
t = time.perf_counter() - t
|
|
|
|
total_time = initial_expiration + interval * (count - 1)
|
|
self.assertGreater(t, total_time - self.CLOCK_RES)
|
|
|
|
# wait 3.5 time of interval
|
|
time.sleep( (count+0.5) * interval)
|
|
self.assertEqual(self.read_count_signaled(fd), count)
|
|
|
|
def test_timerfd_TFD_TIMER_ABSTIME(self):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
now = time.clock_gettime(time.CLOCK_REALTIME)
|
|
|
|
# 1 second later from now.
|
|
offset = 1
|
|
initial_expiration = now + offset
|
|
# not interval timer
|
|
interval = 0
|
|
|
|
os.timerfd_settime(fd, flags=os.TFD_TIMER_ABSTIME, initial=initial_expiration, interval=interval)
|
|
|
|
# timerfd_gettime
|
|
# Note: timerfd_gettime returns relative values even if TFD_TIMER_ABSTIME is specified.
|
|
next_expiration, interval2 = os.timerfd_gettime(fd)
|
|
self.assertAlmostEqual(interval2, interval, places=self.CLOCK_RES_PLACES)
|
|
self.assertAlmostEqual(next_expiration, offset, places=self.CLOCK_RES_PLACES)
|
|
|
|
t = time.perf_counter()
|
|
count_signaled = self.read_count_signaled(fd)
|
|
t = time.perf_counter() - t
|
|
self.assertEqual(count_signaled, 1)
|
|
|
|
self.assertGreater(t, offset - self.CLOCK_RES)
|
|
|
|
def test_timerfd_select(self):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME, flags=os.TFD_NONBLOCK)
|
|
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], 0)
|
|
self.assertEqual((rfd, wfd, xfd), ([], [], []))
|
|
|
|
# 0.25 second
|
|
initial_expiration = 0.25
|
|
# every 0.125 second
|
|
interval = 0.125
|
|
|
|
os.timerfd_settime(fd, initial=initial_expiration, interval=interval)
|
|
|
|
count = 3
|
|
t = time.perf_counter()
|
|
for _ in range(count):
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], initial_expiration + interval)
|
|
self.assertEqual((rfd, wfd, xfd), ([fd], [], []))
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
t = time.perf_counter() - t
|
|
|
|
total_time = initial_expiration + interval * (count - 1)
|
|
self.assertGreater(t, total_time - self.CLOCK_RES)
|
|
|
|
def check_timerfd_poll(self, nanoseconds):
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME, flags=os.TFD_NONBLOCK)
|
|
|
|
selector = selectors.DefaultSelector()
|
|
selector.register(fd, selectors.EVENT_READ)
|
|
self.addCleanup(selector.close)
|
|
|
|
sec_to_nsec = 10 ** 9
|
|
# 0.25 second
|
|
initial_expiration_ns = sec_to_nsec // 4
|
|
# every 0.125 second
|
|
interval_ns = sec_to_nsec // 8
|
|
|
|
if nanoseconds:
|
|
os.timerfd_settime_ns(fd,
|
|
initial=initial_expiration_ns,
|
|
interval=interval_ns)
|
|
else:
|
|
os.timerfd_settime(fd,
|
|
initial=initial_expiration_ns / sec_to_nsec,
|
|
interval=interval_ns / sec_to_nsec)
|
|
|
|
count = 3
|
|
if nanoseconds:
|
|
t = time.perf_counter_ns()
|
|
else:
|
|
t = time.perf_counter()
|
|
for i in range(count):
|
|
timeout_margin_ns = interval_ns
|
|
if i == 0:
|
|
timeout_ns = initial_expiration_ns + interval_ns + timeout_margin_ns
|
|
else:
|
|
timeout_ns = interval_ns + timeout_margin_ns
|
|
|
|
ready = selector.select(timeout_ns / sec_to_nsec)
|
|
self.assertEqual(len(ready), 1, ready)
|
|
event = ready[0][1]
|
|
self.assertEqual(event, selectors.EVENT_READ)
|
|
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
|
|
total_time = initial_expiration_ns + interval_ns * (count - 1)
|
|
if nanoseconds:
|
|
dt = time.perf_counter_ns() - t
|
|
self.assertGreater(dt, total_time - self.CLOCK_RES_NS)
|
|
else:
|
|
dt = time.perf_counter() - t
|
|
self.assertGreater(dt, total_time / sec_to_nsec - self.CLOCK_RES)
|
|
selector.unregister(fd)
|
|
|
|
def test_timerfd_poll(self):
|
|
self.check_timerfd_poll(False)
|
|
|
|
def test_timerfd_ns_poll(self):
|
|
self.check_timerfd_poll(True)
|
|
|
|
def test_timerfd_ns_initval(self):
|
|
one_sec_in_nsec = 10**9
|
|
limit_error = one_sec_in_nsec // 10**3
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
# 1st call
|
|
initial_expiration_ns = 0
|
|
interval_ns = one_sec_in_nsec // 1000
|
|
next_expiration_ns, interval_ns2 = os.timerfd_settime_ns(fd, initial=initial_expiration_ns, interval=interval_ns)
|
|
self.assertEqual(interval_ns2, 0)
|
|
self.assertEqual(next_expiration_ns, 0)
|
|
|
|
# 2nd call
|
|
next_expiration_ns, interval_ns2 = os.timerfd_settime_ns(fd, initial=initial_expiration_ns, interval=interval_ns)
|
|
self.assertEqual(interval_ns2, interval_ns)
|
|
self.assertEqual(next_expiration_ns, initial_expiration_ns)
|
|
|
|
# timerfd_gettime
|
|
next_expiration_ns, interval_ns2 = os.timerfd_gettime_ns(fd)
|
|
self.assertEqual(interval_ns2, interval_ns)
|
|
self.assertLessEqual(next_expiration_ns, initial_expiration_ns)
|
|
|
|
self.assertAlmostEqual(next_expiration_ns, initial_expiration_ns, delta=limit_error)
|
|
|
|
def test_timerfd_ns_interval(self):
|
|
one_sec_in_nsec = 10**9
|
|
limit_error = one_sec_in_nsec // 10**3
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
# 1 second
|
|
initial_expiration_ns = one_sec_in_nsec
|
|
# every 0.5 second
|
|
interval_ns = one_sec_in_nsec // 2
|
|
|
|
os.timerfd_settime_ns(fd, initial=initial_expiration_ns, interval=interval_ns)
|
|
|
|
# timerfd_gettime
|
|
next_expiration_ns, interval_ns2 = os.timerfd_gettime_ns(fd)
|
|
self.assertEqual(interval_ns2, interval_ns)
|
|
self.assertLessEqual(next_expiration_ns, initial_expiration_ns)
|
|
|
|
count = 3
|
|
t = time.perf_counter_ns()
|
|
for _ in range(count):
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
t = time.perf_counter_ns() - t
|
|
|
|
total_time_ns = initial_expiration_ns + interval_ns * (count - 1)
|
|
self.assertGreater(t, total_time_ns - self.CLOCK_RES_NS)
|
|
|
|
# wait 3.5 time of interval
|
|
time.sleep( (count+0.5) * interval_ns / one_sec_in_nsec)
|
|
self.assertEqual(self.read_count_signaled(fd), count)
|
|
|
|
|
|
def test_timerfd_ns_TFD_TIMER_ABSTIME(self):
|
|
one_sec_in_nsec = 10**9
|
|
limit_error = one_sec_in_nsec // 10**3
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME)
|
|
|
|
now_ns = time.clock_gettime_ns(time.CLOCK_REALTIME)
|
|
|
|
# 1 second later from now.
|
|
offset_ns = one_sec_in_nsec
|
|
initial_expiration_ns = now_ns + offset_ns
|
|
# not interval timer
|
|
interval_ns = 0
|
|
|
|
os.timerfd_settime_ns(fd, flags=os.TFD_TIMER_ABSTIME, initial=initial_expiration_ns, interval=interval_ns)
|
|
|
|
# timerfd_gettime
|
|
# Note: timerfd_gettime returns relative values even if TFD_TIMER_ABSTIME is specified.
|
|
next_expiration_ns, interval_ns2 = os.timerfd_gettime_ns(fd)
|
|
self.assertLess(abs(interval_ns2 - interval_ns), limit_error)
|
|
self.assertLess(abs(next_expiration_ns - offset_ns), limit_error)
|
|
|
|
t = time.perf_counter_ns()
|
|
count_signaled = self.read_count_signaled(fd)
|
|
t = time.perf_counter_ns() - t
|
|
self.assertEqual(count_signaled, 1)
|
|
|
|
self.assertGreater(t, offset_ns - self.CLOCK_RES_NS)
|
|
|
|
def test_timerfd_ns_select(self):
|
|
one_sec_in_nsec = 10**9
|
|
|
|
fd = self.timerfd_create(time.CLOCK_REALTIME, flags=os.TFD_NONBLOCK)
|
|
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], 0)
|
|
self.assertEqual((rfd, wfd, xfd), ([], [], []))
|
|
|
|
# 0.25 second
|
|
initial_expiration_ns = one_sec_in_nsec // 4
|
|
# every 0.125 second
|
|
interval_ns = one_sec_in_nsec // 8
|
|
|
|
os.timerfd_settime_ns(fd, initial=initial_expiration_ns, interval=interval_ns)
|
|
|
|
count = 3
|
|
t = time.perf_counter_ns()
|
|
for _ in range(count):
|
|
rfd, wfd, xfd = select.select([fd], [fd], [fd], (initial_expiration_ns + interval_ns) / 1e9 )
|
|
self.assertEqual((rfd, wfd, xfd), ([fd], [], []))
|
|
self.assertEqual(self.read_count_signaled(fd), 1)
|
|
t = time.perf_counter_ns() - t
|
|
|
|
total_time_ns = initial_expiration_ns + interval_ns * (count - 1)
|
|
self.assertGreater(t, total_time_ns - self.CLOCK_RES_NS)
|
|
|
|
class OSErrorTests(unittest.TestCase):
|
|
def setUp(self):
|
|
class Str(str):
|
|
pass
|
|
|
|
self.bytes_filenames = []
|
|
self.unicode_filenames = []
|
|
if os_helper.TESTFN_UNENCODABLE is not None:
|
|
decoded = os_helper.TESTFN_UNENCODABLE
|
|
else:
|
|
decoded = os_helper.TESTFN
|
|
self.unicode_filenames.append(decoded)
|
|
self.unicode_filenames.append(Str(decoded))
|
|
if os_helper.TESTFN_UNDECODABLE is not None:
|
|
encoded = os_helper.TESTFN_UNDECODABLE
|
|
else:
|
|
encoded = os.fsencode(os_helper.TESTFN)
|
|
self.bytes_filenames.append(encoded)
|
|
|
|
self.filenames = self.bytes_filenames + self.unicode_filenames
|
|
|
|
def test_oserror_filename(self):
|
|
funcs = [
|
|
(self.filenames, os.chdir,),
|
|
(self.filenames, os.lstat,),
|
|
(self.filenames, os.open, os.O_RDONLY),
|
|
(self.filenames, os.rmdir,),
|
|
(self.filenames, os.stat,),
|
|
(self.filenames, os.unlink,),
|
|
(self.filenames, os.listdir,),
|
|
(self.filenames, os.rename, "dst"),
|
|
(self.filenames, os.replace, "dst"),
|
|
]
|
|
if os_helper.can_chmod():
|
|
funcs.append((self.filenames, os.chmod, 0o777))
|
|
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"):
|
|
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"):
|
|
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, str(func))
|
|
except UnicodeDecodeError:
|
|
pass
|
|
else:
|
|
self.fail(f"No exception thrown by {func}")
|
|
|
|
class CPUCountTests(unittest.TestCase):
|
|
def check_cpu_count(self, cpus):
|
|
if cpus is None:
|
|
self.skipTest("Could not determine the number of CPUs")
|
|
|
|
self.assertIsInstance(cpus, int)
|
|
self.assertGreater(cpus, 0)
|
|
|
|
def test_cpu_count(self):
|
|
cpus = os.cpu_count()
|
|
self.check_cpu_count(cpus)
|
|
|
|
def test_process_cpu_count(self):
|
|
cpus = os.process_cpu_count()
|
|
self.assertLessEqual(cpus, os.cpu_count())
|
|
self.check_cpu_count(cpus)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'sched_setaffinity'),
|
|
"don't have sched affinity support")
|
|
def test_process_cpu_count_affinity(self):
|
|
affinity1 = os.process_cpu_count()
|
|
if affinity1 is None:
|
|
self.skipTest("Could not determine the number of CPUs")
|
|
|
|
# Disable one CPU
|
|
mask = os.sched_getaffinity(0)
|
|
if len(mask) <= 1:
|
|
self.skipTest(f"sched_getaffinity() returns less than "
|
|
f"2 CPUs: {sorted(mask)}")
|
|
self.addCleanup(os.sched_setaffinity, 0, list(mask))
|
|
mask.pop()
|
|
os.sched_setaffinity(0, mask)
|
|
|
|
# test process_cpu_count()
|
|
affinity2 = os.process_cpu_count()
|
|
self.assertEqual(affinity2, affinity1 - 1)
|
|
|
|
|
|
# FD inheritance check is only useful for systems with process support.
|
|
@support.requires_subprocess()
|
|
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)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'O_PATH'), "need os.O_PATH")
|
|
def test_get_set_inheritable_o_path(self):
|
|
fd = os.open(__file__, os.O_PATH)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertEqual(os.get_inheritable(fd), False)
|
|
|
|
os.set_inheritable(fd, True)
|
|
self.assertEqual(os.get_inheritable(fd), True)
|
|
|
|
os.set_inheritable(fd, False)
|
|
self.assertEqual(os.get_inheritable(fd), False)
|
|
|
|
def test_get_set_inheritable_badf(self):
|
|
fd = os_helper.make_bad_fd()
|
|
|
|
with self.assertRaises(OSError) as ctx:
|
|
os.get_inheritable(fd)
|
|
self.assertEqual(ctx.exception.errno, errno.EBADF)
|
|
|
|
with self.assertRaises(OSError) as ctx:
|
|
os.set_inheritable(fd, True)
|
|
self.assertEqual(ctx.exception.errno, errno.EBADF)
|
|
|
|
with self.assertRaises(OSError) as ctx:
|
|
os.set_inheritable(fd, False)
|
|
self.assertEqual(ctx.exception.errno, errno.EBADF)
|
|
|
|
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)
|
|
|
|
def test_dup_standard_stream(self):
|
|
fd = os.dup(1)
|
|
self.addCleanup(os.close, fd)
|
|
self.assertGreater(fd, 0)
|
|
|
|
@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')
|
|
def test_dup_nul(self):
|
|
# os.dup() was creating inheritable fds for character files.
|
|
fd1 = os.open('NUL', os.O_RDONLY)
|
|
self.addCleanup(os.close, fd1)
|
|
fd2 = os.dup(fd1)
|
|
self.addCleanup(os.close, fd2)
|
|
self.assertFalse(os.get_inheritable(fd2))
|
|
|
|
@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)
|
|
self.addCleanup(os.close, fd2)
|
|
self.assertEqual(os.dup2(fd, fd2), fd2)
|
|
self.assertTrue(os.get_inheritable(fd2))
|
|
|
|
# force non-inheritable
|
|
fd3 = os.open(__file__, os.O_RDONLY)
|
|
self.addCleanup(os.close, fd3)
|
|
self.assertEqual(os.dup2(fd, fd3, inheritable=False), fd3)
|
|
self.assertFalse(os.get_inheritable(fd3))
|
|
|
|
@unittest.skipUnless(hasattr(os, 'openpty'), "need os.openpty()")
|
|
class PseudoterminalTests(unittest.TestCase):
|
|
def open_pty(self):
|
|
"""Open a pty fd-pair, and schedule cleanup for it"""
|
|
main_fd, second_fd = os.openpty()
|
|
self.addCleanup(os.close, main_fd)
|
|
self.addCleanup(os.close, second_fd)
|
|
return main_fd, second_fd
|
|
|
|
def test_openpty(self):
|
|
main_fd, second_fd = self.open_pty()
|
|
self.assertEqual(os.get_inheritable(main_fd), False)
|
|
self.assertEqual(os.get_inheritable(second_fd), False)
|
|
|
|
@unittest.skipUnless(hasattr(os, 'ptsname'), "need os.ptsname()")
|
|
@unittest.skipUnless(hasattr(os, 'O_RDWR'), "need os.O_RDWR")
|
|
@unittest.skipUnless(hasattr(os, 'O_NOCTTY'), "need os.O_NOCTTY")
|
|
def test_open_via_ptsname(self):
|
|
main_fd, second_fd = self.open_pty()
|
|
second_path = os.ptsname(main_fd)
|
|
reopened_second_fd = os.open(second_path, os.O_RDWR|os.O_NOCTTY)
|
|
self.addCleanup(os.close, reopened_second_fd)
|
|
os.write(reopened_second_fd, b'foo')
|
|
self.assertEqual(os.read(main_fd, 3), b'foo')
|
|
|
|
@unittest.skipUnless(hasattr(os, 'posix_openpt'), "need os.posix_openpt()")
|
|
@unittest.skipUnless(hasattr(os, 'grantpt'), "need os.grantpt()")
|
|
@unittest.skipUnless(hasattr(os, 'unlockpt'), "need os.unlockpt()")
|
|
@unittest.skipUnless(hasattr(os, 'ptsname'), "need os.ptsname()")
|
|
@unittest.skipUnless(hasattr(os, 'O_RDWR'), "need os.O_RDWR")
|
|
@unittest.skipUnless(hasattr(os, 'O_NOCTTY'), "need os.O_NOCTTY")
|
|
def test_posix_pty_functions(self):
|
|
mother_fd = os.posix_openpt(os.O_RDWR|os.O_NOCTTY)
|
|
self.addCleanup(os.close, mother_fd)
|
|
os.grantpt(mother_fd)
|
|
os.unlockpt(mother_fd)
|
|
son_path = os.ptsname(mother_fd)
|
|
son_fd = os.open(son_path, os.O_RDWR|os.O_NOCTTY)
|
|
self.addCleanup(os.close, son_fd)
|
|
self.assertEqual(os.ptsname(mother_fd), os.ttyname(son_fd))
|
|
|
|
@unittest.skipUnless(hasattr(os, 'spawnl'), "need os.spawnl()")
|
|
@support.requires_subprocess()
|
|
def test_pipe_spawnl(self):
|
|
# gh-77046: On Windows, os.pipe() file descriptors must be created with
|
|
# _O_NOINHERIT to make them non-inheritable. UCRT has no public API to
|
|
# get (_osfile(fd) & _O_NOINHERIT), so use a functional test.
|
|
#
|
|
# Make sure that fd is not inherited by a child process created by
|
|
# os.spawnl(): get_osfhandle() and dup() must fail with EBADF.
|
|
|
|
fd, fd2 = os.pipe()
|
|
self.addCleanup(os.close, fd)
|
|
self.addCleanup(os.close, fd2)
|
|
|
|
code = textwrap.dedent(f"""
|
|
import errno
|
|
import os
|
|
import test.support
|
|
try:
|
|
import msvcrt
|
|
except ImportError:
|
|
msvcrt = None
|
|
|
|
fd = {fd}
|
|
|
|
with test.support.SuppressCrashReport():
|
|
if msvcrt is not None:
|
|
try:
|
|
handle = msvcrt.get_osfhandle(fd)
|
|
except OSError as exc:
|
|
if exc.errno != errno.EBADF:
|
|
raise
|
|
# get_osfhandle(fd) failed with EBADF as expected
|
|
else:
|
|
raise Exception("get_osfhandle() must fail")
|
|
|
|
try:
|
|
fd3 = os.dup(fd)
|
|
except OSError as exc:
|
|
if exc.errno != errno.EBADF:
|
|
raise
|
|
# os.dup(fd) failed with EBADF as expected
|
|
else:
|
|
os.close(fd3)
|
|
raise Exception("dup must fail")
|
|
""")
|
|
|
|
filename = os_helper.TESTFN
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
with open(filename, "w") as fp:
|
|
print(code, file=fp, end="")
|
|
|
|
executable = sys.executable
|
|
cmd = [executable, filename]
|
|
if os.name == "nt" and " " in cmd[0]:
|
|
cmd[0] = f'"{cmd[0]}"'
|
|
exitcode = os.spawnl(os.P_WAIT, executable, *cmd)
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
|
|
class PathTConverterTests(unittest.TestCase):
|
|
# tuples of (function name, allows fd arguments, additional arguments to
|
|
# function, cleanup function)
|
|
functions = [
|
|
('stat', True, (), None),
|
|
('lstat', False, (), None),
|
|
('access', False, (os.F_OK,), None),
|
|
('chflags', False, (0,), None),
|
|
('lchflags', False, (0,), None),
|
|
('open', False, (os.O_RDONLY,), getattr(os, 'close', None)),
|
|
]
|
|
|
|
def test_path_t_converter(self):
|
|
str_filename = os_helper.TESTFN
|
|
if os.name == 'nt':
|
|
bytes_fspath = bytes_filename = None
|
|
else:
|
|
bytes_filename = os.fsencode(os_helper.TESTFN)
|
|
bytes_fspath = FakePath(bytes_filename)
|
|
fd = os.open(FakePath(str_filename), os.O_WRONLY|os.O_CREAT)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
self.addCleanup(os.close, fd)
|
|
|
|
int_fspath = FakePath(fd)
|
|
str_fspath = FakePath(str_filename)
|
|
|
|
for name, allow_fd, extra_args, cleanup_fn in self.functions:
|
|
with self.subTest(name=name):
|
|
try:
|
|
fn = getattr(os, name)
|
|
except AttributeError:
|
|
continue
|
|
|
|
for path in (str_filename, bytes_filename, str_fspath,
|
|
bytes_fspath):
|
|
if path is None:
|
|
continue
|
|
with self.subTest(name=name, path=path):
|
|
result = fn(path, *extra_args)
|
|
if cleanup_fn is not None:
|
|
cleanup_fn(result)
|
|
|
|
with self.assertRaisesRegex(
|
|
TypeError, 'to return str or bytes'):
|
|
fn(int_fspath, *extra_args)
|
|
|
|
if allow_fd:
|
|
result = fn(fd, *extra_args) # should not fail
|
|
if cleanup_fn is not None:
|
|
cleanup_fn(result)
|
|
else:
|
|
with self.assertRaisesRegex(
|
|
TypeError,
|
|
'os.PathLike'):
|
|
fn(fd, *extra_args)
|
|
|
|
def test_path_t_converter_and_custom_class(self):
|
|
msg = r'__fspath__\(\) to return str or bytes, not %s'
|
|
with self.assertRaisesRegex(TypeError, msg % r'int'):
|
|
os.stat(FakePath(2))
|
|
with self.assertRaisesRegex(TypeError, msg % r'float'):
|
|
os.stat(FakePath(2.34))
|
|
with self.assertRaisesRegex(TypeError, msg % r'object'):
|
|
os.stat(FakePath(object()))
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'get_blocking'),
|
|
'needs os.get_blocking() and os.set_blocking()')
|
|
@unittest.skipIf(support.is_emscripten, "Cannot unset blocking flag")
|
|
@unittest.skipIf(sys.platform == 'win32', 'Windows only supports blocking on pipes')
|
|
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 TestDirEntry(unittest.TestCase):
|
|
def setUp(self):
|
|
self.path = os.path.realpath(os_helper.TESTFN)
|
|
self.addCleanup(os_helper.rmtree, self.path)
|
|
os.mkdir(self.path)
|
|
|
|
def test_uninstantiable(self):
|
|
self.assertRaises(TypeError, os.DirEntry)
|
|
|
|
def test_unpickable(self):
|
|
filename = create_file(os.path.join(self.path, "file.txt"), b'python')
|
|
entry = [entry for entry in os.scandir(self.path)].pop()
|
|
self.assertIsInstance(entry, os.DirEntry)
|
|
self.assertEqual(entry.name, "file.txt")
|
|
import pickle
|
|
self.assertRaises(TypeError, pickle.dumps, entry, filename)
|
|
|
|
|
|
class TestScandir(unittest.TestCase):
|
|
check_no_resource_warning = warnings_helper.check_no_resource_warning
|
|
|
|
def setUp(self):
|
|
self.path = os.path.realpath(os_helper.TESTFN)
|
|
self.bytes_path = os.fsencode(self.path)
|
|
self.addCleanup(os_helper.rmtree, self.path)
|
|
os.mkdir(self.path)
|
|
|
|
def create_file(self, name="file.txt"):
|
|
path = self.bytes_path if isinstance(name, bytes) else self.path
|
|
filename = os.path.join(path, name)
|
|
create_file(filename, 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", "st_ctime",
|
|
"st_ctime_ns"):
|
|
continue
|
|
self.assertEqual(getattr(stat1, attr),
|
|
getattr(stat2, attr),
|
|
(stat1, stat2, attr))
|
|
else:
|
|
self.assertEqual(stat1, stat2)
|
|
|
|
def test_uninstantiable(self):
|
|
scandir_iter = os.scandir(self.path)
|
|
self.assertRaises(TypeError, type(scandir_iter))
|
|
scandir_iter.close()
|
|
|
|
def test_unpickable(self):
|
|
filename = self.create_file("file.txt")
|
|
scandir_iter = os.scandir(self.path)
|
|
import pickle
|
|
self.assertRaises(TypeError, pickle.dumps, scandir_iter, filename)
|
|
scandir_iter.close()
|
|
|
|
def check_entry(self, entry, name, is_dir, is_file, is_symlink):
|
|
self.assertIsInstance(entry, os.DirEntry)
|
|
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.assertEqual(entry.is_junction(), os.path.isjunction(entry.path))
|
|
|
|
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 = os_helper.can_hardlink()
|
|
symlink = os_helper.can_symlink()
|
|
|
|
dirname = os.path.join(self.path, "dir")
|
|
os.mkdir(dirname)
|
|
filename = self.create_file("file.txt")
|
|
if link:
|
|
try:
|
|
os.link(filename, os.path.join(self.path, "link_file.txt"))
|
|
except PermissionError as e:
|
|
self.skipTest('os.link(): %s' % e)
|
|
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)
|
|
|
|
@unittest.skipIf(sys.platform != 'win32', "Can only test junctions with creation on win32.")
|
|
def test_attributes_junctions(self):
|
|
dirname = os.path.join(self.path, "tgtdir")
|
|
os.mkdir(dirname)
|
|
|
|
import _winapi
|
|
try:
|
|
_winapi.CreateJunction(dirname, os.path.join(self.path, "srcjunc"))
|
|
except OSError:
|
|
raise unittest.SkipTest('creating the test junction failed')
|
|
|
|
entries = self.get_entries(['srcjunc', 'tgtdir'])
|
|
self.assertEqual(entries['srcjunc'].is_junction(), True)
|
|
self.assertEqual(entries['tgtdir'].is_junction(), False)
|
|
|
|
def get_entry(self, name):
|
|
path = self.bytes_path if isinstance(name, bytes) else self.path
|
|
entries = list(os.scandir(path))
|
|
self.assertEqual(len(entries), 1)
|
|
|
|
entry = entries[0]
|
|
self.assertEqual(entry.name, name)
|
|
return entry
|
|
|
|
def create_file_entry(self, name='file.txt'):
|
|
filename = self.create_file(name=name)
|
|
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_fspath_protocol(self):
|
|
entry = self.create_file_entry()
|
|
self.assertEqual(os.fspath(entry), os.path.join(self.path, 'file.txt'))
|
|
|
|
def test_fspath_protocol_bytes(self):
|
|
bytes_filename = os.fsencode('bytesfile.txt')
|
|
bytes_entry = self.create_file_entry(name=bytes_filename)
|
|
fspath = os.fspath(bytes_entry)
|
|
self.assertIsInstance(fspath, bytes)
|
|
self.assertEqual(fspath,
|
|
os.path.join(os.fsencode(self.path),bytes_filename))
|
|
|
|
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 os_helper.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):
|
|
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_bytes_like(self):
|
|
self.create_file("file.txt")
|
|
|
|
for cls in bytearray, memoryview:
|
|
path_bytes = cls(os.fsencode(self.path))
|
|
with self.assertRaises(TypeError):
|
|
os.scandir(path_bytes)
|
|
|
|
@unittest.skipUnless(os.listdir in os.supports_fd,
|
|
'fd support for listdir required for this test.')
|
|
def test_fd(self):
|
|
self.assertIn(os.scandir, os.supports_fd)
|
|
self.create_file('file.txt')
|
|
expected_names = ['file.txt']
|
|
if os_helper.can_symlink():
|
|
os.symlink('file.txt', os.path.join(self.path, 'link'))
|
|
expected_names.append('link')
|
|
|
|
with os_helper.open_dir_fd(self.path) as fd:
|
|
with os.scandir(fd) as it:
|
|
entries = list(it)
|
|
names = [entry.name for entry in entries]
|
|
self.assertEqual(sorted(names), expected_names)
|
|
self.assertEqual(names, os.listdir(fd))
|
|
for entry in entries:
|
|
self.assertEqual(entry.path, entry.name)
|
|
self.assertEqual(os.fspath(entry), entry.name)
|
|
self.assertEqual(entry.is_symlink(), entry.name == 'link')
|
|
if os.stat in os.supports_dir_fd:
|
|
st = os.stat(entry.name, dir_fd=fd)
|
|
self.assertEqual(entry.stat(), st)
|
|
st = os.stat(entry.name, dir_fd=fd, follow_symlinks=False)
|
|
self.assertEqual(entry.stat(follow_symlinks=False), st)
|
|
|
|
@unittest.skipIf(support.is_wasi, "WASI maps '' to cwd")
|
|
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 [1.234, {}, []]:
|
|
self.assertRaises(TypeError, os.scandir, obj)
|
|
|
|
def test_close(self):
|
|
self.create_file("file.txt")
|
|
self.create_file("file2.txt")
|
|
iterator = os.scandir(self.path)
|
|
next(iterator)
|
|
iterator.close()
|
|
# multiple closes
|
|
iterator.close()
|
|
with self.check_no_resource_warning():
|
|
del iterator
|
|
|
|
def test_context_manager(self):
|
|
self.create_file("file.txt")
|
|
self.create_file("file2.txt")
|
|
with os.scandir(self.path) as iterator:
|
|
next(iterator)
|
|
with self.check_no_resource_warning():
|
|
del iterator
|
|
|
|
def test_context_manager_close(self):
|
|
self.create_file("file.txt")
|
|
self.create_file("file2.txt")
|
|
with os.scandir(self.path) as iterator:
|
|
next(iterator)
|
|
iterator.close()
|
|
|
|
def test_context_manager_exception(self):
|
|
self.create_file("file.txt")
|
|
self.create_file("file2.txt")
|
|
with self.assertRaises(ZeroDivisionError):
|
|
with os.scandir(self.path) as iterator:
|
|
next(iterator)
|
|
1/0
|
|
with self.check_no_resource_warning():
|
|
del iterator
|
|
|
|
def test_resource_warning(self):
|
|
self.create_file("file.txt")
|
|
self.create_file("file2.txt")
|
|
iterator = os.scandir(self.path)
|
|
next(iterator)
|
|
with self.assertWarns(ResourceWarning):
|
|
del iterator
|
|
support.gc_collect()
|
|
# exhausted iterator
|
|
iterator = os.scandir(self.path)
|
|
list(iterator)
|
|
with self.check_no_resource_warning():
|
|
del iterator
|
|
|
|
|
|
class TestPEP519(unittest.TestCase):
|
|
|
|
# Abstracted so it can be overridden to test pure Python implementation
|
|
# if a C version is provided.
|
|
fspath = staticmethod(os.fspath)
|
|
|
|
def test_return_bytes(self):
|
|
for b in b'hello', b'goodbye', b'some/path/and/file':
|
|
self.assertEqual(b, self.fspath(b))
|
|
|
|
def test_return_string(self):
|
|
for s in 'hello', 'goodbye', 'some/path/and/file':
|
|
self.assertEqual(s, self.fspath(s))
|
|
|
|
def test_fsencode_fsdecode(self):
|
|
for p in "path/like/object", b"path/like/object":
|
|
pathlike = FakePath(p)
|
|
|
|
self.assertEqual(p, self.fspath(pathlike))
|
|
self.assertEqual(b"path/like/object", os.fsencode(pathlike))
|
|
self.assertEqual("path/like/object", os.fsdecode(pathlike))
|
|
|
|
def test_pathlike(self):
|
|
self.assertEqual('#feelthegil', self.fspath(FakePath('#feelthegil')))
|
|
self.assertTrue(issubclass(FakePath, os.PathLike))
|
|
self.assertTrue(isinstance(FakePath('x'), os.PathLike))
|
|
|
|
def test_garbage_in_exception_out(self):
|
|
vapor = type('blah', (), {})
|
|
for o in int, type, os, vapor():
|
|
self.assertRaises(TypeError, self.fspath, o)
|
|
|
|
def test_argument_required(self):
|
|
self.assertRaises(TypeError, self.fspath)
|
|
|
|
def test_bad_pathlike(self):
|
|
# __fspath__ returns a value other than str or bytes.
|
|
self.assertRaises(TypeError, self.fspath, FakePath(42))
|
|
# __fspath__ attribute that is not callable.
|
|
c = type('foo', (), {})
|
|
c.__fspath__ = 1
|
|
self.assertRaises(TypeError, self.fspath, c())
|
|
# __fspath__ raises an exception.
|
|
self.assertRaises(ZeroDivisionError, self.fspath,
|
|
FakePath(ZeroDivisionError()))
|
|
|
|
def test_pathlike_subclasshook(self):
|
|
# bpo-38878: subclasshook causes subclass checks
|
|
# true on abstract implementation.
|
|
class A(os.PathLike):
|
|
pass
|
|
self.assertFalse(issubclass(FakePath, A))
|
|
self.assertTrue(issubclass(FakePath, os.PathLike))
|
|
|
|
def test_pathlike_class_getitem(self):
|
|
self.assertIsInstance(os.PathLike[bytes], types.GenericAlias)
|
|
|
|
def test_pathlike_subclass_slots(self):
|
|
class A(os.PathLike):
|
|
__slots__ = ()
|
|
def __fspath__(self):
|
|
return ''
|
|
self.assertFalse(hasattr(A(), '__dict__'))
|
|
|
|
def test_fspath_set_to_None(self):
|
|
class Foo:
|
|
__fspath__ = None
|
|
|
|
class Bar:
|
|
def __fspath__(self):
|
|
return 'bar'
|
|
|
|
class Baz(Bar):
|
|
__fspath__ = None
|
|
|
|
good_error_msg = (
|
|
r"expected str, bytes or os.PathLike object, not {}".format
|
|
)
|
|
|
|
with self.assertRaisesRegex(TypeError, good_error_msg("Foo")):
|
|
self.fspath(Foo())
|
|
|
|
self.assertEqual(self.fspath(Bar()), 'bar')
|
|
|
|
with self.assertRaisesRegex(TypeError, good_error_msg("Baz")):
|
|
self.fspath(Baz())
|
|
|
|
with self.assertRaisesRegex(TypeError, good_error_msg("Foo")):
|
|
open(Foo())
|
|
|
|
with self.assertRaisesRegex(TypeError, good_error_msg("Baz")):
|
|
open(Baz())
|
|
|
|
other_good_error_msg = (
|
|
r"should be string, bytes or os.PathLike, not {}".format
|
|
)
|
|
|
|
with self.assertRaisesRegex(TypeError, other_good_error_msg("Foo")):
|
|
os.rename(Foo(), "foooo")
|
|
|
|
with self.assertRaisesRegex(TypeError, other_good_error_msg("Baz")):
|
|
os.rename(Baz(), "bazzz")
|
|
|
|
class TimesTests(unittest.TestCase):
|
|
def test_times(self):
|
|
times = os.times()
|
|
self.assertIsInstance(times, os.times_result)
|
|
|
|
for field in ('user', 'system', 'children_user', 'children_system',
|
|
'elapsed'):
|
|
value = getattr(times, field)
|
|
self.assertIsInstance(value, float)
|
|
|
|
if os.name == 'nt':
|
|
self.assertEqual(times.children_user, 0)
|
|
self.assertEqual(times.children_system, 0)
|
|
self.assertEqual(times.elapsed, 0)
|
|
|
|
|
|
@support.requires_fork()
|
|
class ForkTests(unittest.TestCase):
|
|
def test_fork(self):
|
|
# bpo-42540: ensure os.fork() with non-default memory allocator does
|
|
# not crash on exit.
|
|
code = """if 1:
|
|
import os
|
|
from test import support
|
|
pid = os.fork()
|
|
if pid != 0:
|
|
support.wait_process(pid, exitcode=0)
|
|
"""
|
|
assert_python_ok("-c", code)
|
|
if support.Py_GIL_DISABLED:
|
|
assert_python_ok("-c", code, PYTHONMALLOC="mimalloc_debug")
|
|
else:
|
|
assert_python_ok("-c", code, PYTHONMALLOC="malloc_debug")
|
|
|
|
@unittest.skipUnless(sys.platform in ("linux", "android", "darwin"),
|
|
"Only Linux and macOS detect this today.")
|
|
@unittest.skipIf(_testcapi is None, "requires _testcapi")
|
|
def test_fork_warns_when_non_python_thread_exists(self):
|
|
code = """if 1:
|
|
import os, threading, warnings
|
|
from _testcapi import _spawn_pthread_waiter, _end_spawned_pthread
|
|
_spawn_pthread_waiter()
|
|
try:
|
|
with warnings.catch_warnings(record=True) as ws:
|
|
warnings.filterwarnings(
|
|
"always", category=DeprecationWarning)
|
|
if os.fork() == 0:
|
|
assert not ws, f"unexpected warnings in child: {ws}"
|
|
os._exit(0) # child
|
|
else:
|
|
assert ws[0].category == DeprecationWarning, ws[0]
|
|
assert 'fork' in str(ws[0].message), ws[0]
|
|
# Waiting allows an error in the child to hit stderr.
|
|
exitcode = os.wait()[1]
|
|
assert exitcode == 0, f"child exited {exitcode}"
|
|
assert threading.active_count() == 1, threading.enumerate()
|
|
finally:
|
|
_end_spawned_pthread()
|
|
"""
|
|
_, out, err = assert_python_ok("-c", code, PYTHONOPTIMIZE='0')
|
|
self.assertEqual(err.decode("utf-8"), "")
|
|
self.assertEqual(out.decode("utf-8"), "")
|
|
|
|
def test_fork_at_finalization(self):
|
|
code = """if 1:
|
|
import atexit
|
|
import os
|
|
|
|
class AtFinalization:
|
|
def __del__(self):
|
|
print("OK")
|
|
pid = os.fork()
|
|
if pid != 0:
|
|
print("shouldn't be printed")
|
|
at_finalization = AtFinalization()
|
|
"""
|
|
_, out, err = assert_python_ok("-c", code)
|
|
self.assertEqual(b"OK\n", out)
|
|
self.assertIn(b"can't fork at interpreter shutdown", err)
|
|
|
|
|
|
# Only test if the C version is provided, otherwise TestPEP519 already tested
|
|
# the pure Python implementation.
|
|
if hasattr(os, "_fspath"):
|
|
class TestPEP519PurePython(TestPEP519):
|
|
|
|
"""Explicitly test the pure Python implementation of os.fspath()."""
|
|
|
|
fspath = staticmethod(os._fspath)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|