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"Test posix functions"
from test.test_support import TestSkipped, TestFailed, TESTFN, run_suite
try:
import posix
except ImportError:
raise TestSkipped, "posix is not available"
import time
import os
import sys
import unittest
import warnings
warnings.filterwarnings('ignore', '.* potential security risk .*',
RuntimeWarning)
class PosixTester(unittest.TestCase):
def setUp(self):
# create empty file
fp = open(TESTFN, 'w+')
fp.close()
def tearDown(self):
os.unlink(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", "getcwdu", "uname",
"times", "getlogin", "getloadavg", "tmpnam",
"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.assert_(posix.statvfs(os.curdir))
def test_fstatvfs(self):
if hasattr(posix, 'fstatvfs'):
fp = open(TESTFN)
try:
self.assert_(posix.fstatvfs(fp.fileno()))
finally:
fp.close()
def test_ftruncate(self):
if hasattr(posix, 'ftruncate'):
fp = open(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(TESTFN)
try:
fd = posix.dup(fp.fileno())
self.assert_(isinstance(fd, int))
os.close(fd)
finally:
fp.close()
def test_dup2(self):
if hasattr(posix, 'dup2'):
fp1 = open(TESTFN)
fp2 = open(TESTFN)
try:
posix.dup2(fp1.fileno(), fp2.fileno())
finally:
fp1.close()
fp2.close()
def fdopen_helper(self, *args):
fd = os.open(TESTFN, os.O_RDONLY)
fp2 = posix.fdopen(fd, *args)
fp2.close()
def test_fdopen(self):
if hasattr(posix, 'fdopen'):
self.fdopen_helper()
self.fdopen_helper('r')
self.fdopen_helper('r', 100)
def test_fstat(self):
if hasattr(posix, 'fstat'):
fp = open(TESTFN)
try:
self.assert_(posix.fstat(fp.fileno()))
finally:
fp.close()
def test_stat(self):
if hasattr(posix, 'stat'):
self.assert_(posix.stat(TESTFN))
def test_chdir(self):
if hasattr(posix, 'chdir'):
posix.chdir(os.curdir)
self.assertRaises(OSError, posix.chdir, TESTFN)
def test_lsdir(self):
if hasattr(posix, 'lsdir'):
self.assert_(TESTFN in posix.lsdir(os.curdir))
def test_access(self):
if hasattr(posix, 'access'):
self.assert_(posix.access(TESTFN, os.R_OK))
def test_umask(self):
if hasattr(posix, 'umask'):
old_mask = posix.umask(0)
self.assert_(isinstance(old_mask, int))
posix.umask(old_mask)
def test_strerror(self):
if hasattr(posix, 'strerror'):
self.assert_(posix.strerror(0))
def test_pipe(self):
if hasattr(posix, 'pipe'):
reader, writer = posix.pipe()
os.close(reader)
os.close(writer)
def test_tempnam(self):
if hasattr(posix, 'tempnam'):
self.assert_(posix.tempnam())
self.assert_(posix.tempnam(os.curdir))
self.assert_(posix.tempnam(os.curdir, 'blah'))
def test_tmpfile(self):
if hasattr(posix, 'tmpfile'):
fp = posix.tmpfile()
fp.close()
def test_utime(self):
if hasattr(posix, 'utime'):
now = time.time()
posix.utime(TESTFN, None)
posix.utime(TESTFN, (now, now))
def test_main():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(PosixTester))
run_suite(suite)
if __name__ == '__main__':
test_main()
|
