mirror of https://github.com/python/cpython
1535 lines
55 KiB
Python
1535 lines
55 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 os
|
|
import errno
|
|
import unittest
|
|
import warnings
|
|
import sys
|
|
import signal
|
|
import subprocess
|
|
import time
|
|
import shutil
|
|
from test import support
|
|
import contextlib
|
|
import mmap
|
|
import uuid
|
|
import asyncore
|
|
import asynchat
|
|
import socket
|
|
try:
|
|
import threading
|
|
except ImportError:
|
|
threading = None
|
|
|
|
# Detect whether we're on a Linux system that uses the (now outdated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
|
|
|
|
# Tests creating TESTFN
|
|
class FileTests(unittest.TestCase):
|
|
def setUp(self):
|
|
if os.path.exists(support.TESTFN):
|
|
os.unlink(support.TESTFN)
|
|
tearDown = setUp
|
|
|
|
def test_access(self):
|
|
f = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
|
|
os.close(f)
|
|
self.assertTrue(os.access(support.TESTFN, os.W_OK))
|
|
|
|
def test_closerange(self):
|
|
first = os.open(support.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 = support.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(support.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_write(self):
|
|
# os.write() accepts bytes- and buffer-like objects but not strings
|
|
fd = os.open(support.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(support.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(support.TESTFN, os.O_RDONLY)
|
|
f = os.fdopen(fd, *args)
|
|
f.close()
|
|
|
|
def test_fdopen(self):
|
|
fd = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
|
|
os.close(fd)
|
|
|
|
self.fdopen_helper()
|
|
self.fdopen_helper('r')
|
|
self.fdopen_helper('r', 100)
|
|
|
|
|
|
# Test attributes on return values from os.*stat* family.
|
|
class StatAttributeTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.mkdir(support.TESTFN)
|
|
self.fname = os.path.join(support.TESTFN, "f1")
|
|
f = open(self.fname, 'wb')
|
|
f.write(b"ABC")
|
|
f.close()
|
|
|
|
def tearDown(self):
|
|
os.unlink(self.fname)
|
|
os.rmdir(support.TESTFN)
|
|
|
|
def check_stat_attributes(self, fname):
|
|
if not hasattr(os, "stat"):
|
|
return
|
|
|
|
import stat
|
|
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)
|
|
|
|
try:
|
|
result[200]
|
|
self.fail("No exception thrown")
|
|
except IndexError:
|
|
pass
|
|
|
|
# Make sure that assignment fails
|
|
try:
|
|
result.st_mode = 1
|
|
self.fail("No exception thrown")
|
|
except AttributeError:
|
|
pass
|
|
|
|
try:
|
|
result.st_rdev = 1
|
|
self.fail("No exception thrown")
|
|
except (AttributeError, TypeError):
|
|
pass
|
|
|
|
try:
|
|
result.parrot = 1
|
|
self.fail("No exception thrown")
|
|
except AttributeError:
|
|
pass
|
|
|
|
# Use the stat_result constructor with a too-short tuple.
|
|
try:
|
|
result2 = os.stat_result((10,))
|
|
self.fail("No exception thrown")
|
|
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_statvfs_attributes(self):
|
|
if not hasattr(os, "statvfs"):
|
|
return
|
|
|
|
try:
|
|
result = os.statvfs(self.fname)
|
|
except OSError as e:
|
|
# On AtheOS, glibc always returns ENOSYS
|
|
if e.errno == errno.ENOSYS:
|
|
return
|
|
|
|
# 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])
|
|
|
|
# Make sure that assignment really fails
|
|
try:
|
|
result.f_bfree = 1
|
|
self.fail("No exception thrown")
|
|
except AttributeError:
|
|
pass
|
|
|
|
try:
|
|
result.parrot = 1
|
|
self.fail("No exception thrown")
|
|
except AttributeError:
|
|
pass
|
|
|
|
# Use the constructor with a too-short tuple.
|
|
try:
|
|
result2 = os.statvfs_result((10,))
|
|
self.fail("No exception thrown")
|
|
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
|
|
|
|
def test_utime_dir(self):
|
|
delta = 1000000
|
|
st = os.stat(support.TESTFN)
|
|
# round to int, because some systems may support sub-second
|
|
# time stamps in stat, but not in utime.
|
|
os.utime(support.TESTFN, (st.st_atime, int(st.st_mtime-delta)))
|
|
st2 = os.stat(support.TESTFN)
|
|
self.assertEqual(st2.st_mtime, int(st.st_mtime-delta))
|
|
|
|
# Restrict test to Win32, since there is no guarantee other
|
|
# systems support centiseconds
|
|
if sys.platform == 'win32':
|
|
def get_file_system(path):
|
|
root = os.path.splitdrive(os.path.abspath(path))[0] + '\\'
|
|
import ctypes
|
|
kernel32 = ctypes.windll.kernel32
|
|
buf = ctypes.create_unicode_buffer("", 100)
|
|
if kernel32.GetVolumeInformationW(root, None, 0, None, None, None, buf, len(buf)):
|
|
return buf.value
|
|
|
|
if get_file_system(support.TESTFN) == "NTFS":
|
|
def test_1565150(self):
|
|
t1 = 1159195039.25
|
|
os.utime(self.fname, (t1, t1))
|
|
self.assertEqual(os.stat(self.fname).st_mtime, t1)
|
|
|
|
def test_large_time(self):
|
|
t1 = 5000000000 # some day in 2128
|
|
os.utime(self.fname, (t1, t1))
|
|
self.assertEqual(os.stat(self.fname).st_mtime, t1)
|
|
|
|
def test_1686475(self):
|
|
# Verify that an open file can be stat'ed
|
|
try:
|
|
os.stat(r"c:\pagefile.sys")
|
|
except WindowsError as e:
|
|
if e.errno == 2: # file does not exist; cannot run test
|
|
return
|
|
self.fail("Could not stat pagefile.sys")
|
|
|
|
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
|
|
def test_update2(self):
|
|
os.environ.clear()
|
|
if os.path.exists("/bin/sh"):
|
|
os.environ.update(HELLO="World")
|
|
with os.popen("/bin/sh -c 'echo $HELLO'") as popen:
|
|
value = popen.read().strip()
|
|
self.assertEqual(value, "World")
|
|
|
|
def test_os_popen_iter(self):
|
|
if os.path.exists("/bin/sh"):
|
|
with os.popen(
|
|
"/bin/sh -c 'echo \"line1\nline2\nline3\"'") as popen:
|
|
it = iter(popen)
|
|
self.assertEqual(next(it), "line1\n")
|
|
self.assertEqual(next(it), "line2\n")
|
|
self.assertEqual(next(it), "line3\n")
|
|
self.assertRaises(StopIteration, next, it)
|
|
|
|
# Verify environ keys and values from the OS are of the
|
|
# correct str type.
|
|
def test_keyvalue_types(self):
|
|
for key, val in os.environ.items():
|
|
self.assertEqual(type(key), str)
|
|
self.assertEqual(type(val), str)
|
|
|
|
def test_items(self):
|
|
for key, value in self._reference().items():
|
|
self.assertEqual(os.environ.get(key), value)
|
|
|
|
# Issue 7310
|
|
def test___repr__(self):
|
|
"""Check that the repr() of os.environ looks like environ({...})."""
|
|
env = os.environ
|
|
self.assertEqual(repr(env), 'environ({{{}}})'.format(', '.join(
|
|
'{!r}: {!r}'.format(key, value)
|
|
for key, value in env.items())))
|
|
|
|
def test_get_exec_path(self):
|
|
defpath_list = os.defpath.split(os.pathsep)
|
|
test_path = ['/monty', '/python', '', '/flying/circus']
|
|
test_env = {'PATH': os.pathsep.join(test_path)}
|
|
|
|
saved_environ = os.environ
|
|
try:
|
|
os.environ = dict(test_env)
|
|
# Test that defaulting to os.environ works.
|
|
self.assertSequenceEqual(test_path, os.get_exec_path())
|
|
self.assertSequenceEqual(test_path, os.get_exec_path(env=None))
|
|
finally:
|
|
os.environ = saved_environ
|
|
|
|
# No PATH environment variable
|
|
self.assertSequenceEqual(defpath_list, os.get_exec_path({}))
|
|
# Empty PATH environment variable
|
|
self.assertSequenceEqual(('',), os.get_exec_path({'PATH':''}))
|
|
# Supplied PATH environment variable
|
|
self.assertSequenceEqual(test_path, os.get_exec_path(test_env))
|
|
|
|
if os.supports_bytes_environ:
|
|
# env cannot contain 'PATH' and b'PATH' keys
|
|
try:
|
|
# ignore BytesWarning warning
|
|
with warnings.catch_warnings(record=True):
|
|
mixed_env = {'PATH': '1', b'PATH': b'2'}
|
|
except BytesWarning:
|
|
# mixed_env cannot be created with python -bb
|
|
pass
|
|
else:
|
|
self.assertRaises(ValueError, os.get_exec_path, mixed_env)
|
|
|
|
# bytes key and/or value
|
|
self.assertSequenceEqual(os.get_exec_path({b'PATH': b'abc'}),
|
|
['abc'])
|
|
self.assertSequenceEqual(os.get_exec_path({b'PATH': 'abc'}),
|
|
['abc'])
|
|
self.assertSequenceEqual(os.get_exec_path({'PATH': b'abc'}),
|
|
['abc'])
|
|
|
|
@unittest.skipUnless(os.supports_bytes_environ,
|
|
"os.environb required for this test.")
|
|
def test_environb(self):
|
|
# os.environ -> os.environb
|
|
value = 'euro\u20ac'
|
|
try:
|
|
value_bytes = value.encode(sys.getfilesystemencoding(),
|
|
'surrogateescape')
|
|
except UnicodeEncodeError:
|
|
msg = "U+20AC character is not encodable to %s" % (
|
|
sys.getfilesystemencoding(),)
|
|
self.skipTest(msg)
|
|
os.environ['unicode'] = value
|
|
self.assertEqual(os.environ['unicode'], value)
|
|
self.assertEqual(os.environb[b'unicode'], value_bytes)
|
|
|
|
# os.environb -> os.environ
|
|
value = b'\xff'
|
|
os.environb[b'bytes'] = value
|
|
self.assertEqual(os.environb[b'bytes'], value)
|
|
value_str = value.decode(sys.getfilesystemencoding(), 'surrogateescape')
|
|
self.assertEqual(os.environ['bytes'], value_str)
|
|
|
|
class WalkTests(unittest.TestCase):
|
|
"""Tests for os.walk()."""
|
|
|
|
def test_traversal(self):
|
|
import os
|
|
from os.path import join
|
|
|
|
# Build:
|
|
# TESTFN/
|
|
# TEST1/ a file kid and two directory kids
|
|
# tmp1
|
|
# SUB1/ a file kid and a directory kid
|
|
# tmp2
|
|
# SUB11/ no kids
|
|
# SUB2/ a file kid and a dirsymlink kid
|
|
# tmp3
|
|
# link/ a symlink to TESTFN.2
|
|
# TEST2/
|
|
# tmp4 a lone file
|
|
walk_path = join(support.TESTFN, "TEST1")
|
|
sub1_path = join(walk_path, "SUB1")
|
|
sub11_path = join(sub1_path, "SUB11")
|
|
sub2_path = join(walk_path, "SUB2")
|
|
tmp1_path = join(walk_path, "tmp1")
|
|
tmp2_path = join(sub1_path, "tmp2")
|
|
tmp3_path = join(sub2_path, "tmp3")
|
|
link_path = join(sub2_path, "link")
|
|
t2_path = join(support.TESTFN, "TEST2")
|
|
tmp4_path = join(support.TESTFN, "TEST2", "tmp4")
|
|
|
|
# Create stuff.
|
|
os.makedirs(sub11_path)
|
|
os.makedirs(sub2_path)
|
|
os.makedirs(t2_path)
|
|
for path in tmp1_path, tmp2_path, tmp3_path, tmp4_path:
|
|
f = open(path, "w")
|
|
f.write("I'm " + path + " and proud of it. Blame test_os.\n")
|
|
f.close()
|
|
if support.can_symlink():
|
|
os.symlink(os.path.abspath(t2_path), link_path)
|
|
sub2_tree = (sub2_path, ["link"], ["tmp3"])
|
|
else:
|
|
sub2_tree = (sub2_path, [], ["tmp3"])
|
|
|
|
# Walk top-down.
|
|
all = list(os.walk(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()
|
|
self.assertEqual(all[0], (walk_path, ["SUB1", "SUB2"], ["tmp1"]))
|
|
self.assertEqual(all[1 + flipped], (sub1_path, ["SUB11"], ["tmp2"]))
|
|
self.assertEqual(all[2 + flipped], (sub11_path, [], []))
|
|
self.assertEqual(all[3 - 2 * flipped], sub2_tree)
|
|
|
|
# Prune the search.
|
|
all = []
|
|
for root, dirs, files in os.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], (walk_path, ["SUB2"], ["tmp1"]))
|
|
self.assertEqual(all[1], sub2_tree)
|
|
|
|
# Walk bottom-up.
|
|
all = list(os.walk(walk_path, topdown=False))
|
|
self.assertEqual(len(all), 4)
|
|
# We can't know which order SUB1 and SUB2 will appear in.
|
|
# Not flipped: SUB11, SUB1, SUB2, TESTFN
|
|
# flipped: SUB2, SUB11, SUB1, TESTFN
|
|
flipped = all[3][1][0] != "SUB1"
|
|
all[3][1].sort()
|
|
self.assertEqual(all[3], (walk_path, ["SUB1", "SUB2"], ["tmp1"]))
|
|
self.assertEqual(all[flipped], (sub11_path, [], []))
|
|
self.assertEqual(all[flipped + 1], (sub1_path, ["SUB11"], ["tmp2"]))
|
|
self.assertEqual(all[2 - 2 * flipped], sub2_tree)
|
|
|
|
if support.can_symlink():
|
|
# Walk, following symlinks.
|
|
for root, dirs, files in os.walk(walk_path, followlinks=True):
|
|
if root == link_path:
|
|
self.assertEqual(dirs, [])
|
|
self.assertEqual(files, ["tmp4"])
|
|
break
|
|
else:
|
|
self.fail("Didn't follow symlink with followlinks=True")
|
|
|
|
def tearDown(self):
|
|
# Tear everything down. This is a decent use for bottom-up on
|
|
# Windows, which doesn't have a recursive delete command. The
|
|
# (not so) subtlety is that rmdir will fail unless the dir's
|
|
# kids are removed first, so bottom up is essential.
|
|
for root, dirs, files in os.walk(support.TESTFN, topdown=False):
|
|
for name in files:
|
|
os.remove(os.path.join(root, name))
|
|
for name in dirs:
|
|
dirname = os.path.join(root, name)
|
|
if not os.path.islink(dirname):
|
|
os.rmdir(dirname)
|
|
else:
|
|
os.remove(dirname)
|
|
os.rmdir(support.TESTFN)
|
|
|
|
class MakedirTests(unittest.TestCase):
|
|
def setUp(self):
|
|
os.mkdir(support.TESTFN)
|
|
|
|
def test_makedir(self):
|
|
base = support.TESTFN
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3')
|
|
os.makedirs(path) # Should work
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4')
|
|
os.makedirs(path)
|
|
|
|
# Try paths with a '.' in them
|
|
self.assertRaises(OSError, os.makedirs, os.curdir)
|
|
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4', 'dir5', os.curdir)
|
|
os.makedirs(path)
|
|
path = os.path.join(base, 'dir1', os.curdir, 'dir2', 'dir3', 'dir4',
|
|
'dir5', 'dir6')
|
|
os.makedirs(path)
|
|
|
|
def test_exist_ok_existing_directory(self):
|
|
path = os.path.join(support.TESTFN, 'dir1')
|
|
mode = 0o777
|
|
old_mask = os.umask(0o022)
|
|
os.makedirs(path, mode)
|
|
self.assertRaises(OSError, os.makedirs, path, mode)
|
|
self.assertRaises(OSError, os.makedirs, path, mode, exist_ok=False)
|
|
self.assertRaises(OSError, os.makedirs, path, 0o776, exist_ok=True)
|
|
os.makedirs(path, mode=mode, exist_ok=True)
|
|
os.umask(old_mask)
|
|
|
|
def test_exist_ok_existing_regular_file(self):
|
|
base = support.TESTFN
|
|
path = os.path.join(support.TESTFN, 'dir1')
|
|
f = open(path, 'w')
|
|
f.write('abc')
|
|
f.close()
|
|
self.assertRaises(OSError, os.makedirs, path)
|
|
self.assertRaises(OSError, os.makedirs, path, exist_ok=False)
|
|
self.assertRaises(OSError, os.makedirs, path, exist_ok=True)
|
|
os.remove(path)
|
|
|
|
def tearDown(self):
|
|
path = os.path.join(support.TESTFN, 'dir1', 'dir2', 'dir3',
|
|
'dir4', 'dir5', 'dir6')
|
|
# If the tests failed, the bottom-most directory ('../dir6')
|
|
# may not have been created, so we look for the outermost directory
|
|
# that exists.
|
|
while not os.path.exists(path) and path != support.TESTFN:
|
|
path = os.path.dirname(path)
|
|
|
|
os.removedirs(path)
|
|
|
|
class DevNullTests(unittest.TestCase):
|
|
def test_devnull(self):
|
|
with open(os.devnull, 'wb') as f:
|
|
f.write(b'hello')
|
|
f.close()
|
|
with open(os.devnull, 'rb') as f:
|
|
self.assertEqual(f.read(), b'')
|
|
|
|
class URandomTests(unittest.TestCase):
|
|
def test_urandom(self):
|
|
try:
|
|
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)
|
|
except NotImplementedError:
|
|
pass
|
|
|
|
@contextlib.contextmanager
|
|
def _execvpe_mockup(defpath=None):
|
|
"""
|
|
Stubs out execv and execve functions when used as context manager.
|
|
Records exec calls. The mock execv and execve functions always raise an
|
|
exception as they would normally never return.
|
|
"""
|
|
# A list of tuples containing (function name, first arg, args)
|
|
# of calls to execv or execve that have been made.
|
|
calls = []
|
|
|
|
def mock_execv(name, *args):
|
|
calls.append(('execv', name, args))
|
|
raise RuntimeError("execv called")
|
|
|
|
def mock_execve(name, *args):
|
|
calls.append(('execve', name, args))
|
|
raise OSError(errno.ENOTDIR, "execve called")
|
|
|
|
try:
|
|
orig_execv = os.execv
|
|
orig_execve = os.execve
|
|
orig_defpath = os.defpath
|
|
os.execv = mock_execv
|
|
os.execve = mock_execve
|
|
if defpath is not None:
|
|
os.defpath = defpath
|
|
yield calls
|
|
finally:
|
|
os.execv = orig_execv
|
|
os.execve = orig_execve
|
|
os.defpath = orig_defpath
|
|
|
|
class ExecTests(unittest.TestCase):
|
|
@unittest.skipIf(USING_LINUXTHREADS,
|
|
"avoid triggering a linuxthreads bug: see issue #4970")
|
|
def test_execvpe_with_bad_program(self):
|
|
self.assertRaises(OSError, os.execvpe, 'no such app-',
|
|
['no such app-'], None)
|
|
|
|
def test_execvpe_with_bad_arglist(self):
|
|
self.assertRaises(ValueError, os.execvpe, 'notepad', [], None)
|
|
|
|
@unittest.skipUnless(hasattr(os, '_execvpe'),
|
|
"No internal os._execvpe function to test.")
|
|
def _test_internal_execvpe(self, test_type):
|
|
program_path = os.sep + 'absolutepath'
|
|
if test_type is bytes:
|
|
program = b'executable'
|
|
fullpath = os.path.join(os.fsencode(program_path), program)
|
|
native_fullpath = fullpath
|
|
arguments = [b'progname', 'arg1', 'arg2']
|
|
else:
|
|
program = 'executable'
|
|
arguments = ['progname', 'arg1', 'arg2']
|
|
fullpath = os.path.join(program_path, program)
|
|
if os.name != "nt":
|
|
native_fullpath = os.fsencode(fullpath)
|
|
else:
|
|
native_fullpath = fullpath
|
|
env = {'spam': 'beans'}
|
|
|
|
# test os._execvpe() with an absolute path
|
|
with _execvpe_mockup() as calls:
|
|
self.assertRaises(RuntimeError,
|
|
os._execvpe, fullpath, arguments)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertEqual(calls[0], ('execv', fullpath, (arguments,)))
|
|
|
|
# test os._execvpe() with a relative path:
|
|
# os.get_exec_path() returns defpath
|
|
with _execvpe_mockup(defpath=program_path) as calls:
|
|
self.assertRaises(OSError,
|
|
os._execvpe, program, arguments, env=env)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertSequenceEqual(calls[0],
|
|
('execve', native_fullpath, (arguments, env)))
|
|
|
|
# test os._execvpe() with a relative path:
|
|
# os.get_exec_path() reads the 'PATH' variable
|
|
with _execvpe_mockup() as calls:
|
|
env_path = env.copy()
|
|
if test_type is bytes:
|
|
env_path[b'PATH'] = program_path
|
|
else:
|
|
env_path['PATH'] = program_path
|
|
self.assertRaises(OSError,
|
|
os._execvpe, program, arguments, env=env_path)
|
|
self.assertEqual(len(calls), 1)
|
|
self.assertSequenceEqual(calls[0],
|
|
('execve', native_fullpath, (arguments, env_path)))
|
|
|
|
def test_internal_execvpe_str(self):
|
|
self._test_internal_execvpe(str)
|
|
if os.name != "nt":
|
|
self._test_internal_execvpe(bytes)
|
|
|
|
|
|
class Win32ErrorTests(unittest.TestCase):
|
|
def test_rename(self):
|
|
self.assertRaises(WindowsError, os.rename, support.TESTFN, support.TESTFN+".bak")
|
|
|
|
def test_remove(self):
|
|
self.assertRaises(WindowsError, os.remove, support.TESTFN)
|
|
|
|
def test_chdir(self):
|
|
self.assertRaises(WindowsError, os.chdir, support.TESTFN)
|
|
|
|
def test_mkdir(self):
|
|
f = open(support.TESTFN, "w")
|
|
try:
|
|
self.assertRaises(WindowsError, os.mkdir, support.TESTFN)
|
|
finally:
|
|
f.close()
|
|
os.unlink(support.TESTFN)
|
|
|
|
def test_utime(self):
|
|
self.assertRaises(WindowsError, os.utime, support.TESTFN, None)
|
|
|
|
def test_chmod(self):
|
|
self.assertRaises(WindowsError, os.chmod, support.TESTFN, 0)
|
|
|
|
class TestInvalidFD(unittest.TestCase):
|
|
singles = ["fchdir", "dup", "fdopen", "fdatasync", "fstat",
|
|
"fstatvfs", "fsync", "tcgetpgrp", "ttyname"]
|
|
#singles.append("close")
|
|
#We omit close because it doesn'r raise an exception on some platforms
|
|
def get_single(f):
|
|
def helper(self):
|
|
if hasattr(os, f):
|
|
self.check(getattr(os, f))
|
|
return helper
|
|
for f in singles:
|
|
locals()["test_"+f] = get_single(f)
|
|
|
|
def check(self, f, *args):
|
|
try:
|
|
f(support.make_bad_fd(), *args)
|
|
except OSError as e:
|
|
self.assertEqual(e.errno, errno.EBADF)
|
|
else:
|
|
self.fail("%r didn't raise a OSError with a bad file descriptor"
|
|
% f)
|
|
|
|
def test_isatty(self):
|
|
if hasattr(os, "isatty"):
|
|
self.assertEqual(os.isatty(support.make_bad_fd()), False)
|
|
|
|
def test_closerange(self):
|
|
if hasattr(os, "closerange"):
|
|
fd = support.make_bad_fd()
|
|
# Make sure none of the descriptors we are about to close are
|
|
# currently valid (issue 6542).
|
|
for i in range(10):
|
|
try: os.fstat(fd+i)
|
|
except OSError:
|
|
pass
|
|
else:
|
|
break
|
|
if i < 2:
|
|
raise unittest.SkipTest(
|
|
"Unable to acquire a range of invalid file descriptors")
|
|
self.assertEqual(os.closerange(fd, fd + i-1), None)
|
|
|
|
def test_dup2(self):
|
|
if hasattr(os, "dup2"):
|
|
self.check(os.dup2, 20)
|
|
|
|
def test_fchmod(self):
|
|
if hasattr(os, "fchmod"):
|
|
self.check(os.fchmod, 0)
|
|
|
|
def test_fchown(self):
|
|
if hasattr(os, "fchown"):
|
|
self.check(os.fchown, -1, -1)
|
|
|
|
def test_fpathconf(self):
|
|
if hasattr(os, "fpathconf"):
|
|
self.check(os.fpathconf, "PC_NAME_MAX")
|
|
|
|
def test_ftruncate(self):
|
|
if hasattr(os, "ftruncate"):
|
|
self.check(os.ftruncate, 0)
|
|
|
|
def test_lseek(self):
|
|
if hasattr(os, "lseek"):
|
|
self.check(os.lseek, 0, 0)
|
|
|
|
def test_read(self):
|
|
if hasattr(os, "read"):
|
|
self.check(os.read, 1)
|
|
|
|
def test_tcsetpgrpt(self):
|
|
if hasattr(os, "tcsetpgrp"):
|
|
self.check(os.tcsetpgrp, 0)
|
|
|
|
def test_write(self):
|
|
if hasattr(os, "write"):
|
|
self.check(os.write, b" ")
|
|
|
|
|
|
class LinkTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.file1 = support.TESTFN
|
|
self.file2 = os.path.join(support.TESTFN + "2")
|
|
|
|
def tearDown(self):
|
|
for file in (self.file1, self.file2):
|
|
if os.path.exists(file):
|
|
os.unlink(file)
|
|
|
|
def _test_link(self, file1, file2):
|
|
with open(file1, "w") as f1:
|
|
f1.write("test")
|
|
|
|
os.link(file1, file2)
|
|
with open(file1, "r") as f1, open(file2, "r") as f2:
|
|
self.assertTrue(os.path.sameopenfile(f1.fileno(), f2.fileno()))
|
|
|
|
def test_link(self):
|
|
self._test_link(self.file1, self.file2)
|
|
|
|
def test_link_bytes(self):
|
|
self._test_link(bytes(self.file1, sys.getfilesystemencoding()),
|
|
bytes(self.file2, sys.getfilesystemencoding()))
|
|
|
|
def test_unicode_name(self):
|
|
try:
|
|
os.fsencode("\xf1")
|
|
except UnicodeError:
|
|
raise unittest.SkipTest("Unable to encode for this platform.")
|
|
|
|
self.file1 += "\xf1"
|
|
self.file2 = self.file1 + "2"
|
|
self._test_link(self.file1, self.file2)
|
|
|
|
if sys.platform != 'win32':
|
|
class Win32ErrorTests(unittest.TestCase):
|
|
pass
|
|
|
|
class PosixUidGidTests(unittest.TestCase):
|
|
if hasattr(os, 'setuid'):
|
|
def test_setuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.setuid, 0)
|
|
self.assertRaises(OverflowError, os.setuid, 1<<32)
|
|
|
|
if hasattr(os, 'setgid'):
|
|
def test_setgid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.setgid, 0)
|
|
self.assertRaises(OverflowError, os.setgid, 1<<32)
|
|
|
|
if hasattr(os, 'seteuid'):
|
|
def test_seteuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.seteuid, 0)
|
|
self.assertRaises(OverflowError, os.seteuid, 1<<32)
|
|
|
|
if hasattr(os, 'setegid'):
|
|
def test_setegid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.setegid, 0)
|
|
self.assertRaises(OverflowError, os.setegid, 1<<32)
|
|
|
|
if hasattr(os, 'setreuid'):
|
|
def test_setreuid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.setreuid, 0, 0)
|
|
self.assertRaises(OverflowError, os.setreuid, 1<<32, 0)
|
|
self.assertRaises(OverflowError, os.setreuid, 0, 1<<32)
|
|
|
|
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)'])
|
|
|
|
if hasattr(os, 'setregid'):
|
|
def test_setregid(self):
|
|
if os.getuid() != 0:
|
|
self.assertRaises(os.error, os.setregid, 0, 0)
|
|
self.assertRaises(OverflowError, os.setregid, 1<<32, 0)
|
|
self.assertRaises(OverflowError, os.setregid, 0, 1<<32)
|
|
|
|
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)'])
|
|
|
|
class Pep383Tests(unittest.TestCase):
|
|
def setUp(self):
|
|
if support.TESTFN_UNENCODABLE:
|
|
self.dir = support.TESTFN_UNENCODABLE
|
|
else:
|
|
self.dir = support.TESTFN
|
|
self.bdir = os.fsencode(self.dir)
|
|
|
|
bytesfn = []
|
|
def add_filename(fn):
|
|
try:
|
|
fn = os.fsencode(fn)
|
|
except UnicodeEncodeError:
|
|
return
|
|
bytesfn.append(fn)
|
|
add_filename(support.TESTFN_UNICODE)
|
|
if support.TESTFN_UNENCODABLE:
|
|
add_filename(support.TESTFN_UNENCODABLE)
|
|
if not bytesfn:
|
|
self.skipTest("couldn't create any non-ascii filename")
|
|
|
|
self.unicodefn = set()
|
|
os.mkdir(self.dir)
|
|
try:
|
|
for fn in bytesfn:
|
|
support.create_empty_file(os.path.join(self.bdir, fn))
|
|
fn = os.fsdecode(fn)
|
|
if fn in self.unicodefn:
|
|
raise ValueError("duplicate filename")
|
|
self.unicodefn.add(fn)
|
|
except:
|
|
shutil.rmtree(self.dir)
|
|
raise
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.dir)
|
|
|
|
def test_listdir(self):
|
|
expected = self.unicodefn
|
|
found = set(os.listdir(self.dir))
|
|
self.assertEqual(found, expected)
|
|
|
|
def test_open(self):
|
|
for fn in self.unicodefn:
|
|
f = open(os.path.join(self.dir, fn), 'rb')
|
|
f.close()
|
|
|
|
def test_stat(self):
|
|
for fn in self.unicodefn:
|
|
os.stat(os.path.join(self.dir, fn))
|
|
else:
|
|
class PosixUidGidTests(unittest.TestCase):
|
|
pass
|
|
class Pep383Tests(unittest.TestCase):
|
|
pass
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
class Win32KillTests(unittest.TestCase):
|
|
def _kill(self, sig):
|
|
# Start sys.executable as a subprocess and communicate from the
|
|
# subprocess to the parent that the interpreter is ready. When it
|
|
# becomes ready, send *sig* via os.kill to the subprocess and check
|
|
# that the return code is equal to *sig*.
|
|
import ctypes
|
|
from ctypes import wintypes
|
|
import msvcrt
|
|
|
|
# Since we can't access the contents of the process' stdout until the
|
|
# process has exited, use PeekNamedPipe to see what's inside stdout
|
|
# without waiting. This is done so we can tell that the interpreter
|
|
# is started and running at a point where it could handle a signal.
|
|
PeekNamedPipe = ctypes.windll.kernel32.PeekNamedPipe
|
|
PeekNamedPipe.restype = wintypes.BOOL
|
|
PeekNamedPipe.argtypes = (wintypes.HANDLE, # Pipe handle
|
|
ctypes.POINTER(ctypes.c_char), # stdout buf
|
|
wintypes.DWORD, # Buffer size
|
|
ctypes.POINTER(wintypes.DWORD), # bytes read
|
|
ctypes.POINTER(wintypes.DWORD), # bytes avail
|
|
ctypes.POINTER(wintypes.DWORD)) # bytes left
|
|
msg = "running"
|
|
proc = subprocess.Popen([sys.executable, "-c",
|
|
"import sys;"
|
|
"sys.stdout.write('{}');"
|
|
"sys.stdout.flush();"
|
|
"input()".format(msg)],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
stdin=subprocess.PIPE)
|
|
self.addCleanup(proc.stdout.close)
|
|
self.addCleanup(proc.stderr.close)
|
|
self.addCleanup(proc.stdin.close)
|
|
|
|
count, max = 0, 100
|
|
while count < max and proc.poll() is None:
|
|
# Create a string buffer to store the result of stdout from the pipe
|
|
buf = ctypes.create_string_buffer(len(msg))
|
|
# Obtain the text currently in proc.stdout
|
|
# Bytes read/avail/left are left as NULL and unused
|
|
rslt = PeekNamedPipe(msvcrt.get_osfhandle(proc.stdout.fileno()),
|
|
buf, ctypes.sizeof(buf), None, None, None)
|
|
self.assertNotEqual(rslt, 0, "PeekNamedPipe failed")
|
|
if buf.value:
|
|
self.assertEqual(msg, buf.value.decode())
|
|
break
|
|
time.sleep(0.1)
|
|
count += 1
|
|
else:
|
|
self.fail("Did not receive communication from the subprocess")
|
|
|
|
os.kill(proc.pid, sig)
|
|
self.assertEqual(proc.wait(), sig)
|
|
|
|
def test_kill_sigterm(self):
|
|
# SIGTERM doesn't mean anything special, but make sure it works
|
|
self._kill(signal.SIGTERM)
|
|
|
|
def test_kill_int(self):
|
|
# os.kill on Windows can take an int which gets set as the exit code
|
|
self._kill(100)
|
|
|
|
def _kill_with_event(self, event, name):
|
|
tagname = "test_os_%s" % uuid.uuid1()
|
|
m = mmap.mmap(-1, 1, tagname)
|
|
m[0] = 0
|
|
# Run a script which has console control handling enabled.
|
|
proc = subprocess.Popen([sys.executable,
|
|
os.path.join(os.path.dirname(__file__),
|
|
"win_console_handler.py"), tagname],
|
|
creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
|
|
# Let the interpreter startup before we send signals. See #3137.
|
|
count, max = 0, 100
|
|
while count < max and proc.poll() is None:
|
|
if m[0] == 1:
|
|
break
|
|
time.sleep(0.1)
|
|
count += 1
|
|
else:
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
os.kill(proc.pid, signal.SIGINT)
|
|
self.fail("Subprocess didn't finish initialization")
|
|
os.kill(proc.pid, event)
|
|
# proc.send_signal(event) could also be done here.
|
|
# Allow time for the signal to be passed and the process to exit.
|
|
time.sleep(0.5)
|
|
if not proc.poll():
|
|
# Forcefully kill the process if we weren't able to signal it.
|
|
os.kill(proc.pid, signal.SIGINT)
|
|
self.fail("subprocess did not stop on {}".format(name))
|
|
|
|
@unittest.skip("subprocesses aren't inheriting CTRL+C property")
|
|
def test_CTRL_C_EVENT(self):
|
|
from ctypes import wintypes
|
|
import ctypes
|
|
|
|
# Make a NULL value by creating a pointer with no argument.
|
|
NULL = ctypes.POINTER(ctypes.c_int)()
|
|
SetConsoleCtrlHandler = ctypes.windll.kernel32.SetConsoleCtrlHandler
|
|
SetConsoleCtrlHandler.argtypes = (ctypes.POINTER(ctypes.c_int),
|
|
wintypes.BOOL)
|
|
SetConsoleCtrlHandler.restype = wintypes.BOOL
|
|
|
|
# Calling this with NULL and FALSE causes the calling process to
|
|
# handle CTRL+C, rather than ignore it. This property is inherited
|
|
# by subprocesses.
|
|
SetConsoleCtrlHandler(NULL, 0)
|
|
|
|
self._kill_with_event(signal.CTRL_C_EVENT, "CTRL_C_EVENT")
|
|
|
|
def test_CTRL_BREAK_EVENT(self):
|
|
self._kill_with_event(signal.CTRL_BREAK_EVENT, "CTRL_BREAK_EVENT")
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
|
|
@support.skip_unless_symlink
|
|
class Win32SymlinkTests(unittest.TestCase):
|
|
filelink = 'filelinktest'
|
|
filelink_target = os.path.abspath(__file__)
|
|
dirlink = 'dirlinktest'
|
|
dirlink_target = os.path.dirname(filelink_target)
|
|
missing_link = 'missing link'
|
|
|
|
def setUp(self):
|
|
assert os.path.exists(self.dirlink_target)
|
|
assert os.path.exists(self.filelink_target)
|
|
assert not os.path.exists(self.dirlink)
|
|
assert not os.path.exists(self.filelink)
|
|
assert not os.path.exists(self.missing_link)
|
|
|
|
def tearDown(self):
|
|
if os.path.exists(self.filelink):
|
|
os.remove(self.filelink)
|
|
if os.path.exists(self.dirlink):
|
|
os.rmdir(self.dirlink)
|
|
if os.path.lexists(self.missing_link):
|
|
os.remove(self.missing_link)
|
|
|
|
def test_directory_link(self):
|
|
os.symlink(self.dirlink_target, self.dirlink)
|
|
self.assertTrue(os.path.exists(self.dirlink))
|
|
self.assertTrue(os.path.isdir(self.dirlink))
|
|
self.assertTrue(os.path.islink(self.dirlink))
|
|
self.check_stat(self.dirlink, self.dirlink_target)
|
|
|
|
def test_file_link(self):
|
|
os.symlink(self.filelink_target, self.filelink)
|
|
self.assertTrue(os.path.exists(self.filelink))
|
|
self.assertTrue(os.path.isfile(self.filelink))
|
|
self.assertTrue(os.path.islink(self.filelink))
|
|
self.check_stat(self.filelink, self.filelink_target)
|
|
|
|
def _create_missing_dir_link(self):
|
|
'Create a "directory" link to a non-existent target'
|
|
linkname = self.missing_link
|
|
if os.path.lexists(linkname):
|
|
os.remove(linkname)
|
|
target = r'c:\\target does not exist.29r3c740'
|
|
assert not os.path.exists(target)
|
|
target_is_dir = True
|
|
os.symlink(target, linkname, target_is_dir)
|
|
|
|
def test_remove_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# For compatibility with Unix, os.remove will check the
|
|
# directory status and call RemoveDirectory if the symlink
|
|
# was created with target_is_dir==True.
|
|
os.remove(self.missing_link)
|
|
|
|
@unittest.skip("currently fails; consider for improvement")
|
|
def test_isdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# consider having isdir return true for directory links
|
|
self.assertTrue(os.path.isdir(self.missing_link))
|
|
|
|
@unittest.skip("currently fails; consider for improvement")
|
|
def test_rmdir_on_directory_link_to_missing_target(self):
|
|
self._create_missing_dir_link()
|
|
# consider allowing rmdir to remove directory links
|
|
os.rmdir(self.missing_link)
|
|
|
|
def check_stat(self, link, target):
|
|
self.assertEqual(os.stat(link), os.stat(target))
|
|
self.assertNotEqual(os.lstat(link), os.stat(link))
|
|
|
|
bytes_link = os.fsencode(link)
|
|
self.assertEqual(os.stat(bytes_link), os.stat(target))
|
|
self.assertNotEqual(os.lstat(bytes_link), os.stat(bytes_link))
|
|
|
|
def test_12084(self):
|
|
level1 = os.path.abspath(support.TESTFN)
|
|
level2 = os.path.join(level1, "level2")
|
|
level3 = os.path.join(level2, "level3")
|
|
try:
|
|
os.mkdir(level1)
|
|
os.mkdir(level2)
|
|
os.mkdir(level3)
|
|
|
|
file1 = os.path.abspath(os.path.join(level1, "file1"))
|
|
|
|
with open(file1, "w") as f:
|
|
f.write("file1")
|
|
|
|
orig_dir = os.getcwd()
|
|
try:
|
|
os.chdir(level2)
|
|
link = os.path.join(level2, "link")
|
|
os.symlink(os.path.relpath(file1), "link")
|
|
self.assertIn("link", os.listdir(os.getcwd()))
|
|
|
|
# Check os.stat calls from the same dir as the link
|
|
self.assertEqual(os.stat(file1), os.stat("link"))
|
|
|
|
# Check os.stat calls from a dir below the link
|
|
os.chdir(level1)
|
|
self.assertEqual(os.stat(file1),
|
|
os.stat(os.path.relpath(link)))
|
|
|
|
# Check os.stat calls from a dir above the link
|
|
os.chdir(level3)
|
|
self.assertEqual(os.stat(file1),
|
|
os.stat(os.path.relpath(link)))
|
|
finally:
|
|
os.chdir(orig_dir)
|
|
except OSError as err:
|
|
self.fail(err)
|
|
finally:
|
|
os.remove(file1)
|
|
shutil.rmtree(level1)
|
|
|
|
|
|
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 PidTests(unittest.TestCase):
|
|
@unittest.skipUnless(hasattr(os, 'getppid'), "test needs os.getppid")
|
|
def test_getppid(self):
|
|
p = subprocess.Popen([sys.executable, '-c',
|
|
'import os; print(os.getppid())'],
|
|
stdout=subprocess.PIPE)
|
|
stdout, _ = p.communicate()
|
|
# We are the parent of our subprocess
|
|
self.assertEqual(int(stdout), os.getpid())
|
|
|
|
|
|
# The introduction of this TestCase caused at least two different errors on
|
|
# *nix buildbots. Temporarily skip this to let the buildbots move along.
|
|
@unittest.skip("Skip due to platform/environment differences on *NIX buildbots")
|
|
@unittest.skipUnless(hasattr(os, 'getlogin'), "test needs os.getlogin")
|
|
class LoginTests(unittest.TestCase):
|
|
def test_getlogin(self):
|
|
user_name = os.getlogin()
|
|
self.assertNotEqual(len(user_name), 0)
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, 'getpriority') and hasattr(os, 'setpriority'),
|
|
"needs os.getpriority and os.setpriority")
|
|
class ProgramPriorityTests(unittest.TestCase):
|
|
"""Tests for os.getpriority() and os.setpriority()."""
|
|
|
|
def test_set_get_priority(self):
|
|
|
|
base = os.getpriority(os.PRIO_PROCESS, os.getpid())
|
|
os.setpriority(os.PRIO_PROCESS, os.getpid(), base + 1)
|
|
try:
|
|
new_prio = os.getpriority(os.PRIO_PROCESS, os.getpid())
|
|
if base >= 19 and new_prio <= 19:
|
|
raise unittest.SkipTest(
|
|
"unable to reliably test setpriority at current nice level of %s" % base)
|
|
else:
|
|
self.assertEqual(new_prio, base + 1)
|
|
finally:
|
|
try:
|
|
os.setpriority(os.PRIO_PROCESS, os.getpid(), base)
|
|
except OSError as err:
|
|
if err.errno != errno.EACCES:
|
|
raise
|
|
|
|
|
|
if threading is not None:
|
|
class SendfileTestServer(asyncore.dispatcher, threading.Thread):
|
|
|
|
class Handler(asynchat.async_chat):
|
|
|
|
def __init__(self, conn):
|
|
asynchat.async_chat.__init__(self, conn)
|
|
self.in_buffer = []
|
|
self.closed = False
|
|
self.push(b"220 ready\r\n")
|
|
|
|
def handle_read(self):
|
|
data = self.recv(4096)
|
|
self.in_buffer.append(data)
|
|
|
|
def get_data(self):
|
|
return b''.join(self.in_buffer)
|
|
|
|
def handle_close(self):
|
|
self.close()
|
|
self.closed = True
|
|
|
|
def handle_error(self):
|
|
raise
|
|
|
|
def __init__(self, address):
|
|
threading.Thread.__init__(self)
|
|
asyncore.dispatcher.__init__(self)
|
|
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.bind(address)
|
|
self.listen(5)
|
|
self.host, self.port = self.socket.getsockname()[:2]
|
|
self.handler_instance = None
|
|
self._active = False
|
|
self._active_lock = threading.Lock()
|
|
|
|
# --- public API
|
|
|
|
@property
|
|
def running(self):
|
|
return self._active
|
|
|
|
def start(self):
|
|
assert not self.running
|
|
self.__flag = threading.Event()
|
|
threading.Thread.start(self)
|
|
self.__flag.wait()
|
|
|
|
def stop(self):
|
|
assert self.running
|
|
self._active = False
|
|
self.join()
|
|
|
|
def wait(self):
|
|
# wait for handler connection to be closed, then stop the server
|
|
while not getattr(self.handler_instance, "closed", False):
|
|
time.sleep(0.001)
|
|
self.stop()
|
|
|
|
# --- internals
|
|
|
|
def run(self):
|
|
self._active = True
|
|
self.__flag.set()
|
|
while self._active and asyncore.socket_map:
|
|
self._active_lock.acquire()
|
|
asyncore.loop(timeout=0.001, count=1)
|
|
self._active_lock.release()
|
|
asyncore.close_all()
|
|
|
|
def handle_accept(self):
|
|
conn, addr = self.accept()
|
|
self.handler_instance = self.Handler(conn)
|
|
|
|
def handle_connect(self):
|
|
self.close()
|
|
handle_read = handle_connect
|
|
|
|
def writable(self):
|
|
return 0
|
|
|
|
def handle_error(self):
|
|
raise
|
|
|
|
|
|
@unittest.skipUnless(threading is not None, "test needs threading module")
|
|
@unittest.skipUnless(hasattr(os, 'sendfile'), "test needs os.sendfile()")
|
|
class TestSendfile(unittest.TestCase):
|
|
|
|
DATA = b"12345abcde" * 16 * 1024 # 160 KB
|
|
SUPPORT_HEADERS_TRAILERS = not sys.platform.startswith("linux") and \
|
|
not sys.platform.startswith("solaris") and \
|
|
not sys.platform.startswith("sunos")
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
with open(support.TESTFN, "wb") as f:
|
|
f.write(cls.DATA)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
support.unlink(support.TESTFN)
|
|
|
|
def setUp(self):
|
|
self.server = SendfileTestServer((support.HOST, 0))
|
|
self.server.start()
|
|
self.client = socket.socket()
|
|
self.client.connect((self.server.host, self.server.port))
|
|
self.client.settimeout(1)
|
|
# synchronize by waiting for "220 ready" response
|
|
self.client.recv(1024)
|
|
self.sockno = self.client.fileno()
|
|
self.file = open(support.TESTFN, 'rb')
|
|
self.fileno = self.file.fileno()
|
|
|
|
def tearDown(self):
|
|
self.file.close()
|
|
self.client.close()
|
|
if self.server.running:
|
|
self.server.stop()
|
|
|
|
def sendfile_wrapper(self, sock, file, offset, nbytes, headers=[], trailers=[]):
|
|
"""A higher level wrapper representing how an application is
|
|
supposed to use sendfile().
|
|
"""
|
|
while 1:
|
|
try:
|
|
if self.SUPPORT_HEADERS_TRAILERS:
|
|
return os.sendfile(sock, file, offset, nbytes, headers,
|
|
trailers)
|
|
else:
|
|
return os.sendfile(sock, file, offset, nbytes)
|
|
except OSError as err:
|
|
if err.errno == errno.ECONNRESET:
|
|
# disconnected
|
|
raise
|
|
elif err.errno in (errno.EAGAIN, errno.EBUSY):
|
|
# we have to retry send data
|
|
continue
|
|
else:
|
|
raise
|
|
|
|
def test_send_whole_file(self):
|
|
# normal send
|
|
total_sent = 0
|
|
offset = 0
|
|
nbytes = 4096
|
|
while total_sent < len(self.DATA):
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
offset += sent
|
|
total_sent += sent
|
|
self.assertTrue(sent <= nbytes)
|
|
self.assertEqual(offset, total_sent)
|
|
|
|
self.assertEqual(total_sent, len(self.DATA))
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(len(data), len(self.DATA))
|
|
self.assertEqual(data, self.DATA)
|
|
|
|
def test_send_at_certain_offset(self):
|
|
# start sending a file at a certain offset
|
|
total_sent = 0
|
|
offset = len(self.DATA) // 2
|
|
must_send = len(self.DATA) - offset
|
|
nbytes = 4096
|
|
while total_sent < must_send:
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
offset += sent
|
|
total_sent += sent
|
|
self.assertTrue(sent <= nbytes)
|
|
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
expected = self.DATA[len(self.DATA) // 2:]
|
|
self.assertEqual(total_sent, len(expected))
|
|
self.assertEqual(len(data), len(expected))
|
|
self.assertEqual(data, expected)
|
|
|
|
def test_offset_overflow(self):
|
|
# specify an offset > file size
|
|
offset = len(self.DATA) + 4096
|
|
try:
|
|
sent = os.sendfile(self.sockno, self.fileno, offset, 4096)
|
|
except OSError as e:
|
|
# Solaris can raise EINVAL if offset >= file length, ignore.
|
|
if e.errno != errno.EINVAL:
|
|
raise
|
|
else:
|
|
self.assertEqual(sent, 0)
|
|
self.client.shutdown(socket.SHUT_RDWR)
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(data, b'')
|
|
|
|
def test_invalid_offset(self):
|
|
with self.assertRaises(OSError) as cm:
|
|
os.sendfile(self.sockno, self.fileno, -1, 4096)
|
|
self.assertEqual(cm.exception.errno, errno.EINVAL)
|
|
|
|
# --- headers / trailers tests
|
|
|
|
if SUPPORT_HEADERS_TRAILERS:
|
|
|
|
def test_headers(self):
|
|
total_sent = 0
|
|
sent = os.sendfile(self.sockno, self.fileno, 0, 4096,
|
|
headers=[b"x" * 512])
|
|
total_sent += sent
|
|
offset = 4096
|
|
nbytes = 4096
|
|
while 1:
|
|
sent = self.sendfile_wrapper(self.sockno, self.fileno,
|
|
offset, nbytes)
|
|
if sent == 0:
|
|
break
|
|
total_sent += sent
|
|
offset += sent
|
|
|
|
expected_data = b"x" * 512 + self.DATA
|
|
self.assertEqual(total_sent, len(expected_data))
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(hash(data), hash(expected_data))
|
|
|
|
def test_trailers(self):
|
|
TESTFN2 = support.TESTFN + "2"
|
|
with open(TESTFN2, 'wb') as f:
|
|
f.write(b"abcde")
|
|
with open(TESTFN2, 'rb')as f:
|
|
self.addCleanup(os.remove, TESTFN2)
|
|
os.sendfile(self.sockno, f.fileno(), 0, 4096,
|
|
trailers=[b"12345"])
|
|
self.client.close()
|
|
self.server.wait()
|
|
data = self.server.handler_instance.get_data()
|
|
self.assertEqual(data, b"abcde12345")
|
|
|
|
if hasattr(os, "SF_NODISKIO"):
|
|
def test_flags(self):
|
|
try:
|
|
os.sendfile(self.sockno, self.fileno, 0, 4096,
|
|
flags=os.SF_NODISKIO)
|
|
except OSError as err:
|
|
if err.errno not in (errno.EBUSY, errno.EAGAIN):
|
|
raise
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(
|
|
FileTests,
|
|
StatAttributeTests,
|
|
EnvironTests,
|
|
WalkTests,
|
|
MakedirTests,
|
|
DevNullTests,
|
|
URandomTests,
|
|
ExecTests,
|
|
Win32ErrorTests,
|
|
TestInvalidFD,
|
|
PosixUidGidTests,
|
|
Pep383Tests,
|
|
Win32KillTests,
|
|
Win32SymlinkTests,
|
|
FSEncodingTests,
|
|
PidTests,
|
|
LoginTests,
|
|
LinkTests,
|
|
TestSendfile,
|
|
ProgramPriorityTests,
|
|
)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|