337 lines
12 KiB
Python
337 lines
12 KiB
Python
"Test posix functions"
|
|
|
|
from test import support
|
|
|
|
# Skip these tests if there is no posix module.
|
|
posix = support.import_module('posix')
|
|
|
|
import sys
|
|
import time
|
|
import os
|
|
import pwd
|
|
import shutil
|
|
import unittest
|
|
import warnings
|
|
|
|
warnings.filterwarnings('ignore', '.* potential security risk .*',
|
|
RuntimeWarning)
|
|
|
|
class PosixTester(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
# create empty file
|
|
fp = open(support.TESTFN, 'w+')
|
|
fp.close()
|
|
|
|
def tearDown(self):
|
|
support.unlink(support.TESTFN)
|
|
|
|
def testNoArgFunctions(self):
|
|
# test posix functions which take no arguments and have
|
|
# no side-effects which we need to cleanup (e.g., fork, wait, abort)
|
|
NO_ARG_FUNCTIONS = [ "ctermid", "getcwd", "getcwdb", "uname",
|
|
"times", "getloadavg",
|
|
"getegid", "geteuid", "getgid", "getgroups",
|
|
"getpid", "getpgrp", "getppid", "getuid",
|
|
]
|
|
|
|
for name in NO_ARG_FUNCTIONS:
|
|
posix_func = getattr(posix, name, None)
|
|
if posix_func is not None:
|
|
posix_func()
|
|
self.assertRaises(TypeError, posix_func, 1)
|
|
|
|
def test_statvfs(self):
|
|
if hasattr(posix, 'statvfs'):
|
|
self.assertTrue(posix.statvfs(os.curdir))
|
|
|
|
def test_fstatvfs(self):
|
|
if hasattr(posix, 'fstatvfs'):
|
|
fp = open(support.TESTFN)
|
|
try:
|
|
self.assertTrue(posix.fstatvfs(fp.fileno()))
|
|
finally:
|
|
fp.close()
|
|
|
|
def test_ftruncate(self):
|
|
if hasattr(posix, 'ftruncate'):
|
|
fp = open(support.TESTFN, 'w+')
|
|
try:
|
|
# we need to have some data to truncate
|
|
fp.write('test')
|
|
fp.flush()
|
|
posix.ftruncate(fp.fileno(), 0)
|
|
finally:
|
|
fp.close()
|
|
|
|
def test_dup(self):
|
|
if hasattr(posix, 'dup'):
|
|
fp = open(support.TESTFN)
|
|
try:
|
|
fd = posix.dup(fp.fileno())
|
|
self.assertTrue(isinstance(fd, int))
|
|
os.close(fd)
|
|
finally:
|
|
fp.close()
|
|
|
|
def test_confstr(self):
|
|
if hasattr(posix, 'confstr'):
|
|
self.assertRaises(ValueError, posix.confstr, "CS_garbage")
|
|
self.assertEqual(len(posix.confstr("CS_PATH")) > 0, True)
|
|
|
|
def test_dup2(self):
|
|
if hasattr(posix, 'dup2'):
|
|
fp1 = open(support.TESTFN)
|
|
fp2 = open(support.TESTFN)
|
|
try:
|
|
posix.dup2(fp1.fileno(), fp2.fileno())
|
|
finally:
|
|
fp1.close()
|
|
fp2.close()
|
|
|
|
def test_osexlock(self):
|
|
if hasattr(posix, "O_EXLOCK"):
|
|
fd = os.open(support.TESTFN,
|
|
os.O_WRONLY|os.O_EXLOCK|os.O_CREAT)
|
|
self.assertRaises(OSError, os.open, support.TESTFN,
|
|
os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
|
|
os.close(fd)
|
|
|
|
if hasattr(posix, "O_SHLOCK"):
|
|
fd = os.open(support.TESTFN,
|
|
os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
|
|
self.assertRaises(OSError, os.open, support.TESTFN,
|
|
os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
|
|
os.close(fd)
|
|
|
|
def test_osshlock(self):
|
|
if hasattr(posix, "O_SHLOCK"):
|
|
fd1 = os.open(support.TESTFN,
|
|
os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
|
|
fd2 = os.open(support.TESTFN,
|
|
os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
|
|
os.close(fd2)
|
|
os.close(fd1)
|
|
|
|
if hasattr(posix, "O_EXLOCK"):
|
|
fd = os.open(support.TESTFN,
|
|
os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
|
|
self.assertRaises(OSError, os.open, support.TESTFN,
|
|
os.O_RDONLY|os.O_EXLOCK|os.O_NONBLOCK)
|
|
os.close(fd)
|
|
|
|
def test_fstat(self):
|
|
if hasattr(posix, 'fstat'):
|
|
fp = open(support.TESTFN)
|
|
try:
|
|
self.assertTrue(posix.fstat(fp.fileno()))
|
|
finally:
|
|
fp.close()
|
|
|
|
def test_stat(self):
|
|
if hasattr(posix, 'stat'):
|
|
self.assertTrue(posix.stat(support.TESTFN))
|
|
|
|
def _test_all_chown_common(self, chown_func, first_param):
|
|
"""Common code for chown, fchown and lchown tests."""
|
|
if os.getuid() == 0:
|
|
try:
|
|
# Many linux distros have a nfsnobody user as MAX_UID-2
|
|
# that makes a good test case for signedness issues.
|
|
# http://bugs.python.org/issue1747858
|
|
# This part of the test only runs when run as root.
|
|
# Only scary people run their tests as root.
|
|
ent = pwd.getpwnam('nfsnobody')
|
|
chown_func(first_param, ent.pw_uid, ent.pw_gid)
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
# non-root cannot chown to root, raises OSError
|
|
self.assertRaises(OSError, chown_func,
|
|
first_param, 0, 0)
|
|
# test a successful chown call
|
|
chown_func(first_param, os.getuid(), os.getgid())
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'chown'), "test needs os.chown()")
|
|
def test_chown(self):
|
|
# raise an OSError if the file does not exist
|
|
os.unlink(support.TESTFN)
|
|
self.assertRaises(OSError, posix.chown, support.TESTFN, -1, -1)
|
|
|
|
# re-create the file
|
|
open(support.TESTFN, 'w').close()
|
|
self._test_all_chown_common(posix.chown, support.TESTFN)
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'fchown'), "test needs os.fchown()")
|
|
def test_fchown(self):
|
|
os.unlink(support.TESTFN)
|
|
|
|
# re-create the file
|
|
test_file = open(support.TESTFN, 'w')
|
|
try:
|
|
fd = test_file.fileno()
|
|
self._test_all_chown_common(posix.fchown, fd)
|
|
finally:
|
|
test_file.close()
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'lchown'), "test needs os.lchown()")
|
|
def test_lchown(self):
|
|
os.unlink(support.TESTFN)
|
|
# create a symlink
|
|
os.symlink('/tmp/dummy-symlink-target', support.TESTFN)
|
|
self._test_all_chown_common(posix.lchown, support.TESTFN)
|
|
|
|
def test_chdir(self):
|
|
if hasattr(posix, 'chdir'):
|
|
posix.chdir(os.curdir)
|
|
self.assertRaises(OSError, posix.chdir, support.TESTFN)
|
|
|
|
def test_lsdir(self):
|
|
if hasattr(posix, 'lsdir'):
|
|
self.assertTrue(support.TESTFN in posix.lsdir(os.curdir))
|
|
|
|
def test_access(self):
|
|
if hasattr(posix, 'access'):
|
|
self.assertTrue(posix.access(support.TESTFN, os.R_OK))
|
|
|
|
def test_umask(self):
|
|
if hasattr(posix, 'umask'):
|
|
old_mask = posix.umask(0)
|
|
self.assertTrue(isinstance(old_mask, int))
|
|
posix.umask(old_mask)
|
|
|
|
def test_strerror(self):
|
|
if hasattr(posix, 'strerror'):
|
|
self.assertTrue(posix.strerror(0))
|
|
|
|
def test_pipe(self):
|
|
if hasattr(posix, 'pipe'):
|
|
reader, writer = posix.pipe()
|
|
os.close(reader)
|
|
os.close(writer)
|
|
|
|
def test_utime(self):
|
|
if hasattr(posix, 'utime'):
|
|
now = time.time()
|
|
posix.utime(support.TESTFN, None)
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, None))
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, None))
|
|
self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, now))
|
|
posix.utime(support.TESTFN, (int(now), int(now)))
|
|
posix.utime(support.TESTFN, (now, now))
|
|
|
|
def test_chflags(self):
|
|
if hasattr(posix, 'chflags'):
|
|
st = os.stat(support.TESTFN)
|
|
if hasattr(st, 'st_flags'):
|
|
posix.chflags(support.TESTFN, st.st_flags)
|
|
|
|
def test_lchflags(self):
|
|
if hasattr(posix, 'lchflags'):
|
|
st = os.stat(support.TESTFN)
|
|
if hasattr(st, 'st_flags'):
|
|
posix.lchflags(support.TESTFN, st.st_flags)
|
|
|
|
def test_environ(self):
|
|
for k, v in posix.environ.items():
|
|
self.assertEqual(type(k), str)
|
|
self.assertEqual(type(v), str)
|
|
|
|
def test_getcwd_long_pathnames(self):
|
|
if hasattr(posix, 'getcwd'):
|
|
dirname = 'getcwd-test-directory-0123456789abcdef-01234567890abcdef'
|
|
curdir = os.getcwd()
|
|
base_path = os.path.abspath(support.TESTFN) + '.getcwd'
|
|
|
|
try:
|
|
os.mkdir(base_path)
|
|
os.chdir(base_path)
|
|
except:
|
|
# Just returning nothing instead of the SkipTest exception,
|
|
# because the test results in Error in that case.
|
|
# Is that ok?
|
|
# raise unittest.SkipTest("cannot create directory for testing")
|
|
return
|
|
|
|
def _create_and_do_getcwd(dirname, current_path_length = 0):
|
|
try:
|
|
os.mkdir(dirname)
|
|
except:
|
|
raise unittest.SkipTest("mkdir cannot create directory sufficiently deep for getcwd test")
|
|
|
|
os.chdir(dirname)
|
|
try:
|
|
os.getcwd()
|
|
if current_path_length < 1027:
|
|
_create_and_do_getcwd(dirname, current_path_length + len(dirname) + 1)
|
|
finally:
|
|
os.chdir('..')
|
|
os.rmdir(dirname)
|
|
|
|
_create_and_do_getcwd(dirname)
|
|
|
|
finally:
|
|
os.chdir(curdir)
|
|
support.rmtree(base_path)
|
|
|
|
def test_getgroups(self):
|
|
with os.popen('id -G') as idg:
|
|
groups = idg.read().strip()
|
|
|
|
if not groups:
|
|
raise unittest.SkipTest("need working 'id -G'")
|
|
|
|
# 'id -G' and 'os.getgroups()' should return the same
|
|
# groups, ignoring order and duplicates.
|
|
self.assertEqual(
|
|
set([int(x) for x in groups.split()]),
|
|
set(posix.getgroups()))
|
|
|
|
class PosixGroupsTester(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
if posix.getuid() != 0:
|
|
raise unittest.SkipTest("not enough privileges")
|
|
if not hasattr(posix, 'getgroups'):
|
|
raise unittest.SkipTest("need posix.getgroups")
|
|
if sys.platform == 'darwin':
|
|
raise unittest.SkipTest("getgroups(2) is broken on OSX")
|
|
self.saved_groups = posix.getgroups()
|
|
|
|
def tearDown(self):
|
|
if hasattr(posix, 'setgroups'):
|
|
posix.setgroups(self.saved_groups)
|
|
elif hasattr(posix, 'initgroups'):
|
|
name = pwd.getpwuid(posix.getuid()).pw_name
|
|
posix.initgroups(name, self.saved_groups[0])
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'initgroups'),
|
|
"test needs posix.initgroups()")
|
|
def test_initgroups(self):
|
|
# find missing group
|
|
|
|
groups = sorted(self.saved_groups)
|
|
for g1,g2 in zip(groups[:-1], groups[1:]):
|
|
g = g1 + 1
|
|
if g < g2:
|
|
break
|
|
else:
|
|
g = g2 + 1
|
|
name = pwd.getpwuid(posix.getuid()).pw_name
|
|
posix.initgroups(name, g)
|
|
self.assertIn(g, posix.getgroups())
|
|
|
|
@unittest.skipUnless(hasattr(posix, 'setgroups'),
|
|
"test needs posix.setgroups()")
|
|
def test_setgroups(self):
|
|
for groups in [[0], range(16)]:
|
|
posix.setgroups(groups)
|
|
self.assertListEqual(groups, posix.getgroups())
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(PosixTester, PosixGroupsTester)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|