1220 lines
45 KiB
Python
1220 lines
45 KiB
Python
# As a test suite for the os module, this is woefully inadequate, but this
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# does add tests for a few functions which have been determined to be more
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# portable than they had been thought to be.
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import os
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import errno
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import unittest
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import warnings
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import sys
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import signal
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import subprocess
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import time
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import shutil
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from test import support
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import contextlib
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import mmap
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import uuid
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# Detect whether we're on a Linux system that uses the (now outdated
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# and unmaintained) linuxthreads threading library. There's an issue
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# when combining linuxthreads with a failed execv call: see
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# http://bugs.python.org/issue4970.
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if (hasattr(os, "confstr_names") and
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"CS_GNU_LIBPTHREAD_VERSION" in os.confstr_names):
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libpthread = os.confstr("CS_GNU_LIBPTHREAD_VERSION")
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USING_LINUXTHREADS= libpthread.startswith("linuxthreads")
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else:
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USING_LINUXTHREADS= False
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# Tests creating TESTFN
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class FileTests(unittest.TestCase):
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def setUp(self):
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if os.path.exists(support.TESTFN):
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os.unlink(support.TESTFN)
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tearDown = setUp
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def test_access(self):
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f = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
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os.close(f)
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self.assertTrue(os.access(support.TESTFN, os.W_OK))
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def test_closerange(self):
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first = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
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# We must allocate two consecutive file descriptors, otherwise
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# it will mess up other file descriptors (perhaps even the three
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# standard ones).
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second = os.dup(first)
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try:
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retries = 0
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while second != first + 1:
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os.close(first)
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retries += 1
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if retries > 10:
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# XXX test skipped
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self.skipTest("couldn't allocate two consecutive fds")
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first, second = second, os.dup(second)
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finally:
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os.close(second)
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# close a fd that is open, and one that isn't
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os.closerange(first, first + 2)
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self.assertRaises(OSError, os.write, first, b"a")
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@support.cpython_only
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def test_rename(self):
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path = support.TESTFN
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old = sys.getrefcount(path)
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self.assertRaises(TypeError, os.rename, path, 0)
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new = sys.getrefcount(path)
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self.assertEqual(old, new)
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def test_read(self):
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with open(support.TESTFN, "w+b") as fobj:
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fobj.write(b"spam")
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fobj.flush()
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fd = fobj.fileno()
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os.lseek(fd, 0, 0)
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s = os.read(fd, 4)
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self.assertEqual(type(s), bytes)
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self.assertEqual(s, b"spam")
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def test_write(self):
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# os.write() accepts bytes- and buffer-like objects but not strings
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fd = os.open(support.TESTFN, os.O_CREAT | os.O_WRONLY)
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self.assertRaises(TypeError, os.write, fd, "beans")
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os.write(fd, b"bacon\n")
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os.write(fd, bytearray(b"eggs\n"))
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os.write(fd, memoryview(b"spam\n"))
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os.close(fd)
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with open(support.TESTFN, "rb") as fobj:
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self.assertEqual(fobj.read().splitlines(),
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[b"bacon", b"eggs", b"spam"])
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class TemporaryFileTests(unittest.TestCase):
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def setUp(self):
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self.files = []
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os.mkdir(support.TESTFN)
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def tearDown(self):
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for name in self.files:
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os.unlink(name)
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os.rmdir(support.TESTFN)
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def check_tempfile(self, name):
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# make sure it doesn't already exist:
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self.assertFalse(os.path.exists(name),
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"file already exists for temporary file")
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# make sure we can create the file
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open(name, "w")
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self.files.append(name)
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def test_tempnam(self):
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if not hasattr(os, "tempnam"):
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return
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warnings.filterwarnings("ignore", "tempnam", RuntimeWarning,
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r"test_os$")
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self.check_tempfile(os.tempnam())
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name = os.tempnam(support.TESTFN)
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self.check_tempfile(name)
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name = os.tempnam(support.TESTFN, "pfx")
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self.assertTrue(os.path.basename(name)[:3] == "pfx")
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self.check_tempfile(name)
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def test_tmpfile(self):
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if not hasattr(os, "tmpfile"):
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return
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# As with test_tmpnam() below, the Windows implementation of tmpfile()
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# attempts to create a file in the root directory of the current drive.
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# On Vista and Server 2008, this test will always fail for normal users
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# as writing to the root directory requires elevated privileges. With
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# XP and below, the semantics of tmpfile() are the same, but the user
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# running the test is more likely to have administrative privileges on
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# their account already. If that's the case, then os.tmpfile() should
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# work. In order to make this test as useful as possible, rather than
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# trying to detect Windows versions or whether or not the user has the
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# right permissions, just try and create a file in the root directory
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# and see if it raises a 'Permission denied' OSError. If it does, then
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# test that a subsequent call to os.tmpfile() raises the same error. If
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# it doesn't, assume we're on XP or below and the user running the test
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# has administrative privileges, and proceed with the test as normal.
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if sys.platform == 'win32':
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name = '\\python_test_os_test_tmpfile.txt'
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if os.path.exists(name):
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os.remove(name)
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try:
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fp = open(name, 'w')
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except IOError as first:
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# open() failed, assert tmpfile() fails in the same way.
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# Although open() raises an IOError and os.tmpfile() raises an
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# OSError(), 'args' will be (13, 'Permission denied') in both
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# cases.
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try:
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fp = os.tmpfile()
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except OSError as second:
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self.assertEqual(first.args, second.args)
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else:
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self.fail("expected os.tmpfile() to raise OSError")
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return
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else:
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# open() worked, therefore, tmpfile() should work. Close our
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# dummy file and proceed with the test as normal.
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fp.close()
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os.remove(name)
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fp = os.tmpfile()
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fp.write("foobar")
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fp.seek(0,0)
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s = fp.read()
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fp.close()
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self.assertTrue(s == "foobar")
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def test_tmpnam(self):
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if not hasattr(os, "tmpnam"):
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return
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warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning,
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r"test_os$")
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name = os.tmpnam()
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if sys.platform in ("win32",):
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# The Windows tmpnam() seems useless. From the MS docs:
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#
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# The character string that tmpnam creates consists of
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# the path prefix, defined by the entry P_tmpdir in the
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# file STDIO.H, followed by a sequence consisting of the
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# digit characters '0' through '9'; the numerical value
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# of this string is in the range 1 - 65,535. Changing the
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# definitions of L_tmpnam or P_tmpdir in STDIO.H does not
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# change the operation of tmpnam.
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#
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# The really bizarre part is that, at least under MSVC6,
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# P_tmpdir is "\\". That is, the path returned refers to
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# the root of the current drive. That's a terrible place to
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# put temp files, and, depending on privileges, the user
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# may not even be able to open a file in the root directory.
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self.assertFalse(os.path.exists(name),
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"file already exists for temporary file")
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else:
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self.check_tempfile(name)
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def fdopen_helper(self, *args):
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fd = os.open(support.TESTFN, os.O_RDONLY)
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fp2 = os.fdopen(fd, *args)
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fp2.close()
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def test_fdopen(self):
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self.fdopen_helper()
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self.fdopen_helper('r')
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self.fdopen_helper('r', 100)
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# Test attributes on return values from os.*stat* family.
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class StatAttributeTests(unittest.TestCase):
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def setUp(self):
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os.mkdir(support.TESTFN)
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self.fname = os.path.join(support.TESTFN, "f1")
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f = open(self.fname, 'wb')
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f.write(b"ABC")
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f.close()
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def tearDown(self):
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os.unlink(self.fname)
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os.rmdir(support.TESTFN)
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def check_stat_attributes(self, fname):
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if not hasattr(os, "stat"):
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return
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import stat
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result = os.stat(fname)
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# Make sure direct access works
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self.assertEquals(result[stat.ST_SIZE], 3)
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self.assertEquals(result.st_size, 3)
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# Make sure all the attributes are there
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members = dir(result)
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for name in dir(stat):
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if name[:3] == 'ST_':
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attr = name.lower()
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if name.endswith("TIME"):
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def trunc(x): return int(x)
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else:
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def trunc(x): return x
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self.assertEquals(trunc(getattr(result, attr)),
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result[getattr(stat, name)])
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self.assertIn(attr, members)
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try:
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result[200]
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self.fail("No exception thrown")
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except IndexError:
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pass
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# Make sure that assignment fails
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try:
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result.st_mode = 1
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self.fail("No exception thrown")
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except AttributeError:
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pass
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try:
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result.st_rdev = 1
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self.fail("No exception thrown")
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except (AttributeError, TypeError):
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pass
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try:
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result.parrot = 1
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self.fail("No exception thrown")
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except AttributeError:
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pass
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# Use the stat_result constructor with a too-short tuple.
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try:
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result2 = os.stat_result((10,))
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self.fail("No exception thrown")
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except TypeError:
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pass
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# Use the constructr with a too-long tuple.
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try:
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result2 = os.stat_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
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except TypeError:
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pass
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def test_stat_attributes(self):
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self.check_stat_attributes(self.fname)
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def test_stat_attributes_bytes(self):
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try:
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fname = self.fname.encode(sys.getfilesystemencoding())
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except UnicodeEncodeError:
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self.skipTest("cannot encode %a for the filesystem" % self.fname)
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self.check_stat_attributes(fname)
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def test_statvfs_attributes(self):
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if not hasattr(os, "statvfs"):
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return
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try:
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result = os.statvfs(self.fname)
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except OSError as e:
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# On AtheOS, glibc always returns ENOSYS
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if e.errno == errno.ENOSYS:
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return
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# Make sure direct access works
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self.assertEquals(result.f_bfree, result[3])
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# Make sure all the attributes are there.
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members = ('bsize', 'frsize', 'blocks', 'bfree', 'bavail', 'files',
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'ffree', 'favail', 'flag', 'namemax')
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for value, member in enumerate(members):
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self.assertEquals(getattr(result, 'f_' + member), result[value])
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# Make sure that assignment really fails
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try:
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result.f_bfree = 1
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self.fail("No exception thrown")
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except AttributeError:
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pass
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try:
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result.parrot = 1
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self.fail("No exception thrown")
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except AttributeError:
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pass
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# Use the constructor with a too-short tuple.
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try:
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result2 = os.statvfs_result((10,))
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self.fail("No exception thrown")
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except TypeError:
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pass
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# Use the constructr with a too-long tuple.
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try:
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result2 = os.statvfs_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
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except TypeError:
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pass
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def test_utime_dir(self):
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delta = 1000000
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st = os.stat(support.TESTFN)
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# round to int, because some systems may support sub-second
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# time stamps in stat, but not in utime.
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os.utime(support.TESTFN, (st.st_atime, int(st.st_mtime-delta)))
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st2 = os.stat(support.TESTFN)
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self.assertEquals(st2.st_mtime, int(st.st_mtime-delta))
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# Restrict test to Win32, since there is no guarantee other
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# systems support centiseconds
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if sys.platform == 'win32':
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def get_file_system(path):
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root = os.path.splitdrive(os.path.abspath(path))[0] + '\\'
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import ctypes
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kernel32 = ctypes.windll.kernel32
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buf = ctypes.create_unicode_buffer("", 100)
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if kernel32.GetVolumeInformationW(root, None, 0, None, None, None, buf, len(buf)):
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return buf.value
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if get_file_system(support.TESTFN) == "NTFS":
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def test_1565150(self):
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t1 = 1159195039.25
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os.utime(self.fname, (t1, t1))
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self.assertEquals(os.stat(self.fname).st_mtime, t1)
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def test_1686475(self):
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# Verify that an open file can be stat'ed
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try:
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os.stat(r"c:\pagefile.sys")
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except WindowsError as e:
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if e.errno == 2: # file does not exist; cannot run test
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return
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self.fail("Could not stat pagefile.sys")
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from test import mapping_tests
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class EnvironTests(mapping_tests.BasicTestMappingProtocol):
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"""check that os.environ object conform to mapping protocol"""
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type2test = None
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def setUp(self):
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self.__save = dict(os.environ)
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if os.supports_bytes_environ:
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self.__saveb = dict(os.environb)
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for key, value in self._reference().items():
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os.environ[key] = value
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def tearDown(self):
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os.environ.clear()
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os.environ.update(self.__save)
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if os.supports_bytes_environ:
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os.environb.clear()
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os.environb.update(self.__saveb)
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def _reference(self):
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return {"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"}
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def _empty_mapping(self):
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os.environ.clear()
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return os.environ
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# Bug 1110478
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def test_update2(self):
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os.environ.clear()
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if os.path.exists("/bin/sh"):
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os.environ.update(HELLO="World")
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value = os.popen("/bin/sh -c 'echo $HELLO'").read().strip()
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self.assertEquals(value, "World")
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|
|
def test_os_popen_iter(self):
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if os.path.exists("/bin/sh"):
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popen = os.popen("/bin/sh -c 'echo \"line1\nline2\nline3\"'")
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it = iter(popen)
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self.assertEquals(next(it), "line1\n")
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self.assertEquals(next(it), "line2\n")
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|
self.assertEquals(next(it), "line3\n")
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self.assertRaises(StopIteration, next, it)
|
|
|
|
# Verify environ keys and values from the OS are of the
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# correct str type.
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|
def test_keyvalue_types(self):
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for key, val in os.environ.items():
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self.assertEquals(type(key), str)
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self.assertEquals(type(val), str)
|
|
|
|
def test_items(self):
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|
for key, value in self._reference().items():
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self.assertEqual(os.environ.get(key), value)
|
|
|
|
# Issue 7310
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|
def test___repr__(self):
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|
"""Check that the repr() of os.environ looks like environ({...})."""
|
|
env = os.environ
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|
self.assertEqual(repr(env), 'environ({{{}}})'.format(', '.join(
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'{!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']
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|
test_env = {'PATH': os.pathsep.join(test_path)}
|
|
|
|
saved_environ = os.environ
|
|
try:
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|
os.environ = dict(test_env)
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|
# Test that defaulting to os.environ works.
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|
self.assertSequenceEqual(test_path, os.get_exec_path())
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|
self.assertSequenceEqual(test_path, os.get_exec_path(env=None))
|
|
finally:
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|
os.environ = saved_environ
|
|
|
|
# No PATH environment variable
|
|
self.assertSequenceEqual(defpath_list, os.get_exec_path({}))
|
|
# Empty PATH environment variable
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|
self.assertSequenceEqual(('',), os.get_exec_path({'PATH':''}))
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|
# 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:
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|
mixed_env = {'PATH': '1', b'PATH': b'2'}
|
|
except BytesWarning:
|
|
pass
|
|
else:
|
|
self.assertRaises(ValueError, os.get_exec_path, mixed_env)
|
|
|
|
# bytes key and/or value
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|
self.assertSequenceEqual(os.get_exec_path({b'PATH': b'abc'}),
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|
['abc'])
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|
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.assertEquals(os.environ['unicode'], value)
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|
self.assertEquals(os.environb[b'unicode'], value_bytes)
|
|
|
|
# os.environb -> os.environ
|
|
value = b'\xff'
|
|
os.environb[b'bytes'] = value
|
|
self.assertEquals(os.environb[b'bytes'], value)
|
|
value_str = value.decode(sys.getfilesystemencoding(), 'surrogateescape')
|
|
self.assertEquals(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 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):
|
|
f = open(os.devnull, 'w')
|
|
f.write('hello')
|
|
f.close()
|
|
f = open(os.devnull, 'r')
|
|
self.assertEqual(f.read(), '')
|
|
f.close()
|
|
|
|
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" ")
|
|
|
|
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:
|
|
f = open(os.path.join(self.bdir, fn), "w")
|
|
f.close()
|
|
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.assertEquals(found, expected)
|
|
|
|
def test_open(self):
|
|
for fn in self.unicodefn:
|
|
f = open(os.path.join(self.dir, fn))
|
|
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)
|
|
|
|
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, 20
|
|
while count < max and proc.poll() is None:
|
|
if m[0] == 0:
|
|
break
|
|
time.sleep(0.5)
|
|
count += 1
|
|
else:
|
|
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")
|
|
|
|
|
|
def skipUnlessWindows6(test):
|
|
if (hasattr(sys, 'getwindowsversion')
|
|
and sys.getwindowsversion().major >= 6):
|
|
return test
|
|
return unittest.skip("Requires Windows Vista or later")(test)
|
|
|
|
@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))
|
|
|
|
|
|
class FSEncodingTests(unittest.TestCase):
|
|
def test_nop(self):
|
|
self.assertEquals(os.fsencode(b'abc\xff'), b'abc\xff')
|
|
self.assertEquals(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.assertEquals(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)
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(
|
|
FileTests,
|
|
StatAttributeTests,
|
|
EnvironTests,
|
|
WalkTests,
|
|
MakedirTests,
|
|
DevNullTests,
|
|
URandomTests,
|
|
ExecTests,
|
|
Win32ErrorTests,
|
|
TestInvalidFD,
|
|
PosixUidGidTests,
|
|
Pep383Tests,
|
|
Win32KillTests,
|
|
Win32SymlinkTests,
|
|
FSEncodingTests,
|
|
PidTests,
|
|
LoginTests,
|
|
)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|