import inspect
import os
import posixpath
import sys
import unittest
from posixpath import realpath, abspath, dirname, basename
from test import test_genericpath
from test.support import get_attribute, import_helper
from test.support import cpython_only, os_helper
from test.support.os_helper import FakePath
from unittest import mock
try:
import posix
except ImportError:
posix = None
# An absolute path to a temporary filename for testing. We can't rely on TESTFN
# being an absolute path, so we need this.
ABSTFN = abspath(os_helper.TESTFN)
def skip_if_ABSTFN_contains_backslash(test):
"""
On Windows, posixpath.abspath still returns paths with backslashes
instead of posix forward slashes. If this is the case, several tests
fail, so skip them.
"""
found_backslash = '\\' in ABSTFN
msg = "ABSTFN is not a posix path - tests fail"
return [test, unittest.skip(msg)(test)][found_backslash]
def safe_rmdir(dirname):
try:
os.rmdir(dirname)
except OSError:
pass
class PosixPathTest(unittest.TestCase):
def setUp(self):
self.tearDown()
def tearDown(self):
for suffix in ["", "1", "2"]:
os_helper.unlink(os_helper.TESTFN + suffix)
safe_rmdir(os_helper.TESTFN + suffix)
def test_join(self):
fn = posixpath.join
self.assertEqual(fn("/foo", "bar", "/bar", "baz"), "/bar/baz")
self.assertEqual(fn("/foo", "bar", "baz"), "/foo/bar/baz")
self.assertEqual(fn("/foo/", "bar/", "baz/"), "/foo/bar/baz/")
self.assertEqual(fn(b"/foo", b"bar", b"/bar", b"baz"), b"/bar/baz")
self.assertEqual(fn(b"/foo", b"bar", b"baz"), b"/foo/bar/baz")
self.assertEqual(fn(b"/foo/", b"bar/", b"baz/"), b"/foo/bar/baz/")
self.assertEqual(fn("a", ""), "a/")
self.assertEqual(fn("a", "", ""), "a/")
self.assertEqual(fn("a", "b"), "a/b")
self.assertEqual(fn("a", "b/"), "a/b/")
self.assertEqual(fn("a/", "b"), "a/b")
self.assertEqual(fn("a/", "b/"), "a/b/")
self.assertEqual(fn("a", "b/c", "d"), "a/b/c/d")
self.assertEqual(fn("a", "b//c", "d"), "a/b//c/d")
self.assertEqual(fn("a", "b/c/", "d"), "a/b/c/d")
self.assertEqual(fn("/a", "b"), "/a/b")
self.assertEqual(fn("/a/", "b"), "/a/b")
self.assertEqual(fn("a", "/b", "c"), "/b/c")
self.assertEqual(fn("a", "/b", "/c"), "/c")
def test_split(self):
self.assertEqual(posixpath.split("/foo/bar"), ("/foo", "bar"))
self.assertEqual(posixpath.split("/"), ("/", ""))
self.assertEqual(posixpath.split("foo"), ("", "foo"))
self.assertEqual(posixpath.split("////foo"), ("////", "foo"))
self.assertEqual(posixpath.split("//foo//bar"), ("//foo", "bar"))
self.assertEqual(posixpath.split(b"/foo/bar"), (b"/foo", b"bar"))
self.assertEqual(posixpath.split(b"/"), (b"/", b""))
self.assertEqual(posixpath.split(b"foo"), (b"", b"foo"))
self.assertEqual(posixpath.split(b"////foo"), (b"////", b"foo"))
self.assertEqual(posixpath.split(b"//foo//bar"), (b"//foo", b"bar"))
def splitextTest(self, path, filename, ext):
self.assertEqual(posixpath.splitext(path), (filename, ext))
self.assertEqual(posixpath.splitext("/" + path), ("/" + filename, ext))
self.assertEqual(posixpath.splitext("abc/" + path),
("abc/" + filename, ext))
self.assertEqual(posixpath.splitext("abc.def/" + path),
("abc.def/" + filename, ext))
self.assertEqual(posixpath.splitext("/abc.def/" + path),
("/abc.def/" + filename, ext))
self.assertEqual(posixpath.splitext(path + "/"),
(filename + ext + "/", ""))
path = bytes(path, "ASCII")
filename = bytes(filename, "ASCII")
ext = bytes(ext, "ASCII")
self.assertEqual(posixpath.splitext(path), (filename, ext))
self.assertEqual(posixpath.splitext(b"/" + path),
(b"/" + filename, ext))
self.assertEqual(posixpath.splitext(b"abc/" + path),
(b"abc/" + filename, ext))
self.assertEqual(posixpath.splitext(b"abc.def/" + path),
(b"abc.def/" + filename, ext))
self.assertEqual(posixpath.splitext(b"/abc.def/" + path),
(b"/abc.def/" + filename, ext))
self.assertEqual(posixpath.splitext(path + b"/"),
(filename + ext + b"/", b""))
def test_splitext(self):
self.splitextTest("foo.bar", "foo", ".bar")
self.splitextTest("foo.boo.bar", "foo.boo", ".bar")
self.splitextTest("foo.boo.biff.bar", "foo.boo.biff", ".bar")
self.splitextTest(".csh.rc", ".csh", ".rc")
self.splitextTest("nodots", "nodots", "")
self.splitextTest(".cshrc", ".cshrc", "")
self.splitextTest("...manydots", "...manydots", "")
self.splitextTest("...manydots.ext", "...manydots", ".ext")
self.splitextTest(".", ".", "")
self.splitextTest("..", "..", "")
self.splitextTest("........", "........", "")
self.splitextTest("", "", "")
def test_splitroot(self):
f = posixpath.splitroot
self.assertEqual(f(''), ('', '', ''))
self.assertEqual(f('a'), ('', '', 'a'))
self.assertEqual(f('a/b'), ('', '', 'a/b'))
self.assertEqual(f('a/b/'), ('', '', 'a/b/'))
self.assertEqual(f('/a'), ('', '/', 'a'))
self.assertEqual(f('/a/b'), ('', '/', 'a/b'))
self.assertEqual(f('/a/b/'), ('', '/', 'a/b/'))
# The root is collapsed when there are redundant slashes
# except when there are exactly two leading slashes, which
# is a special case in POSIX.
self.assertEqual(f('//a'), ('', '//', 'a'))
self.assertEqual(f('///a'), ('', '/', '//a'))
self.assertEqual(f('///a/b'), ('', '/', '//a/b'))
# Paths which look like NT paths aren't treated specially.
self.assertEqual(f('c:/a/b'), ('', '', 'c:/a/b'))
self.assertEqual(f('\\/a/b'), ('', '', '\\/a/b'))
self.assertEqual(f('\\a\\b'), ('', '', '\\a\\b'))
# Byte paths are supported
self.assertEqual(f(b''), (b'', b'', b''))
self.assertEqual(f(b'a'), (b'', b'', b'a'))
self.assertEqual(f(b'/a'), (b'', b'/', b'a'))
self.assertEqual(f(b'//a'), (b'', b'//', b'a'))
self.assertEqual(f(b'///a'), (b'', b'/', b'//a'))
def test_isabs(self):
self.assertIs(posixpath.isabs(""), False)
self.assertIs(posixpath.isabs("/"), True)
self.assertIs(posixpath.isabs("/foo"), True)
self.assertIs(posixpath.isabs("/foo/bar"), True)
self.assertIs(posixpath.isabs("foo/bar"), False)
self.assertIs(posixpath.isabs(b""), False)
self.assertIs(posixpath.isabs(b"/"), True)
self.assertIs(posixpath.isabs(b"/foo"), True)
self.assertIs(posixpath.isabs(b"/foo/bar"), True)
self.assertIs(posixpath.isabs(b"foo/bar"), False)
def test_basename(self):
self.assertEqual(posixpath.basename("/foo/bar"), "bar")
self.assertEqual(posixpath.basename("/"), "")
self.assertEqual(posixpath.basename("foo"), "foo")
self.assertEqual(posixpath.basename("////foo"), "foo")
self.assertEqual(posixpath.basename("//foo//bar"), "bar")
self.assertEqual(posixpath.basename(b"/foo/bar"), b"bar")
self.assertEqual(posixpath.basename(b"/"), b"")
self.assertEqual(posixpath.basename(b"foo"), b"foo")
self.assertEqual(posixpath.basename(b"////foo"), b"foo")
self.assertEqual(posixpath.basename(b"//foo//bar"), b"bar")
def test_dirname(self):
self.assertEqual(posixpath.dirname("/foo/bar"), "/foo")
self.assertEqual(posixpath.dirname("/"), "/")
self.assertEqual(posixpath.dirname("foo"), "")
self.assertEqual(posixpath.dirname("////foo"), "////")
self.assertEqual(posixpath.dirname("//foo//bar"), "//foo")
self.assertEqual(posixpath.dirname(b"/foo/bar"), b"/foo")
self.assertEqual(posixpath.dirname(b"/"), b"/")
self.assertEqual(posixpath.dirname(b"foo"), b"")
self.assertEqual(posixpath.dirname(b"////foo"), b"////")
self.assertEqual(posixpath.dirname(b"//foo//bar"), b"//foo")
def test_islink(self):
self.assertIs(posixpath.islink(os_helper.TESTFN + "1"), False)
self.assertIs(posixpath.lexists(os_helper.TESTFN + "2"), False)
with open(os_helper.TESTFN + "1", "wb") as f:
f.write(b"foo")
self.assertIs(posixpath.islink(os_helper.TESTFN + "1"), False)
if os_helper.can_symlink():
os.symlink(os_helper.TESTFN + "1", os_helper.TESTFN + "2")
self.assertIs(posixpath.islink(os_helper.TESTFN + "2"), True)
os.remove(os_helper.TESTFN + "1")
self.assertIs(posixpath.islink(os_helper.TESTFN + "2"), True)
self.assertIs(posixpath.exists(os_helper.TESTFN + "2"), False)
self.assertIs(posixpath.lexists(os_helper.TESTFN + "2"), True)
self.assertIs(posixpath.islink(os_helper.TESTFN + "\udfff"), False)
self.assertIs(posixpath.islink(os.fsencode(os_helper.TESTFN) + b"\xff"), False)
self.assertIs(posixpath.islink(os_helper.TESTFN + "\x00"), False)
self.assertIs(posixpath.islink(os.fsencode(os_helper.TESTFN) + b"\x00"), False)
def test_ismount(self):
self.assertIs(posixpath.ismount("/"), True)
self.assertIs(posixpath.ismount(b"/"), True)
self.assertIs(posixpath.ismount(FakePath("/")), True)
self.assertIs(posixpath.ismount(FakePath(b"/")), True)
def test_ismount_non_existent(self):
# Non-existent mountpoint.
self.assertIs(posixpath.ismount(ABSTFN), False)
try:
os.mkdir(ABSTFN)
self.assertIs(posixpath.ismount(ABSTFN), False)
finally:
safe_rmdir(ABSTFN)
self.assertIs(posixpath.ismount('/\udfff'), False)
self.assertIs(posixpath.ismount(b'/\xff'), False)
self.assertIs(posixpath.ismount('/\x00'), False)
self.assertIs(posixpath.ismount(b'/\x00'), False)
@os_helper.skip_unless_symlink
def test_ismount_symlinks(self):
# Symlinks are never mountpoints.
try:
os.symlink("/", ABSTFN)
self.assertIs(posixpath.ismount(ABSTFN), False)
finally:
os.unlink(ABSTFN)
@unittest.skipIf(posix is None, "Test requires posix module")
def test_ismount_different_device(self):
# Simulate the path being on a different device from its parent by
# mocking out st_dev.
save_lstat = os.lstat
def fake_lstat(path):
st_ino = 0
st_dev = 0
if path == ABSTFN:
st_dev = 1
st_ino = 1
return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0))
try:
os.lstat = fake_lstat
self.assertIs(posixpath.ismount(ABSTFN), True)
finally:
os.lstat = save_lstat
@unittest.skipIf(posix is None, "Test requires posix module")
def test_ismount_directory_not_readable(self):
# issue #2466: Simulate ismount run on a directory that is not
# readable, which used to return False.
save_lstat = os.lstat
def fake_lstat(path):
st_ino = 0
st_dev = 0
if path.startswith(ABSTFN) and path != ABSTFN:
# ismount tries to read something inside the ABSTFN directory;
# simulate this being forbidden (no read permission).
raise OSError("Fake [Errno 13] Permission denied")
if path == ABSTFN:
st_dev = 1
st_ino = 1
return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0))
try:
os.lstat = fake_lstat
self.assertIs(posixpath.ismount(ABSTFN), True)
finally:
os.lstat = save_lstat
def test_isjunction(self):
self.assertFalse(posixpath.isjunction(ABSTFN))
@unittest.skipIf(sys.platform == 'win32', "Fast paths are not for win32")
@cpython_only
def test_fast_paths_in_use(self):
# There are fast paths of these functions implemented in posixmodule.c.
# Confirm that they are being used, and not the Python fallbacks
self.assertTrue(os.path.splitroot is posix._path_splitroot_ex)
self.assertFalse(inspect.isfunction(os.path.splitroot))
self.assertTrue(os.path.normpath is posix._path_normpath)
self.assertFalse(inspect.isfunction(os.path.normpath))
def test_expanduser(self):
self.assertEqual(posixpath.expanduser("foo"), "foo")
self.assertEqual(posixpath.expanduser(b"foo"), b"foo")
def test_expanduser_home_envvar(self):
with os_helper.EnvironmentVarGuard() as env:
env['HOME'] = '/home/victor'
self.assertEqual(posixpath.expanduser("~"), "/home/victor")
# expanduser() strips trailing slash
env['HOME'] = '/home/victor/'
self.assertEqual(posixpath.expanduser("~"), "/home/victor")
for home in '/', '', '//', '///':
with self.subTest(home=home):
env['HOME'] = home
self.assertEqual(posixpath.expanduser("~"), "/")
self.assertEqual(posixpath.expanduser("~/"), "/")
self.assertEqual(posixpath.expanduser("~/foo"), "/foo")
@unittest.skipIf(sys.platform == "vxworks",
"no home directory on VxWorks")
def test_expanduser_pwd(self):
pwd = import_helper.import_module('pwd')
self.assertIsInstance(posixpath.expanduser("~/"), str)
self.assertIsInstance(posixpath.expanduser(b"~/"), bytes)
# if home directory == root directory, this test makes no sense
if posixpath.expanduser("~") != '/':
self.assertEqual(
posixpath.expanduser("~") + "/",
posixpath.expanduser("~/")
)
self.assertEqual(
posixpath.expanduser(b"~") + b"/",
posixpath.expanduser(b"~/")
)
self.assertIsInstance(posixpath.expanduser("~root/"), str)
self.assertIsInstance(posixpath.expanduser("~foo/"), str)
self.assertIsInstance(posixpath.expanduser(b"~root/"), bytes)
self.assertIsInstance(posixpath.expanduser(b"~foo/"), bytes)
with os_helper.EnvironmentVarGuard() as env:
# expanduser should fall back to using the password database
del env['HOME']
home = pwd.getpwuid(os.getuid()).pw_dir
# $HOME can end with a trailing /, so strip it (see #17809)
home = home.rstrip("/") or '/'
self.assertEqual(posixpath.expanduser("~"), home)
# bpo-10496: If the HOME environment variable is not set and the
# user (current identifier or name in the path) doesn't exist in
# the password database (pwd.getuid() or pwd.getpwnam() fail),
# expanduser() must return the path unchanged.
with mock.patch.object(pwd, 'getpwuid', side_effect=KeyError), \
mock.patch.object(pwd, 'getpwnam', side_effect=KeyError):
for path in ('~', '~/.local', '~vstinner/'):
self.assertEqual(posixpath.expanduser(path), path)
@unittest.skipIf(sys.platform == "vxworks",
"no home directory on VxWorks")
def test_expanduser_pwd2(self):
pwd = import_helper.import_module('pwd')
for all_entry in get_attribute(pwd, 'getpwall')():
name = all_entry.pw_name
# gh-121200: pw_dir can be different between getpwall() and
# getpwnam(), so use getpwnam() pw_dir as expanduser() does.
entry = pwd.getpwnam(name)
home = entry.pw_dir
home = home.rstrip('/') or '/'
with self.subTest(all_entry=all_entry, entry=entry):
self.assertEqual(posixpath.expanduser('~' + name), home)
self.assertEqual(posixpath.expanduser(os.fsencode('~' + name)),
os.fsencode(home))
NORMPATH_CASES = [
("", "."),
("/", "/"),
("/.", "/"),
("/./", "/"),
("/.//.", "/"),
("/foo", "/foo"),
("/foo/bar", "/foo/bar"),
("//", "//"),
("///", "/"),
("///foo/.//bar//", "/foo/bar"),
("///foo/.//bar//.//..//.//baz///", "/foo/baz"),
("///..//./foo/.//bar", "/foo/bar"),
(".", "."),
(".//.", "."),
("..", ".."),
("../", ".."),
("../foo", "../foo"),
("../../foo", "../../foo"),
("../foo/../bar", "../bar"),
("../../foo/../bar/./baz/boom/..", "../../bar/baz"),
("/..", "/"),
("/..", "/"),
("/../", "/"),
("/..//", "/"),
("//.", "//"),
("//..", "//"),
("//...", "//..."),
("//../foo", "//foo"),
("//../../foo", "//foo"),
("/../foo", "/foo"),
("/../../foo", "/foo"),
("/../foo/../", "/"),
("/../foo/../bar", "/bar"),
("/../../foo/../bar/./baz/boom/..", "/bar/baz"),
("/../../foo/../bar/./baz/boom/.", "/bar/baz/boom"),
("foo/../bar/baz", "bar/baz"),
("foo/../../bar/baz", "../bar/baz"),
("foo/../../../bar/baz", "../../bar/baz"),
("foo///../bar/.././../baz/boom", "../baz/boom"),
("foo/bar/../..///../../baz/boom", "../../baz/boom"),
("/foo/..", "/"),
("/foo/../..", "/"),
("//foo/..", "//"),
("//foo/../..", "//"),
("///foo/..", "/"),
("///foo/../..", "/"),
("////foo/..", "/"),
("/////foo/..", "/"),
]
def test_normpath(self):
for path, expected in self.NORMPATH_CASES:
with self.subTest(path):
result = posixpath.normpath(path)
self.assertEqual(result, expected)
path = path.encode('utf-8')
expected = expected.encode('utf-8')
with self.subTest(path, type=bytes):
result = posixpath.normpath(path)
self.assertEqual(result, expected)
@skip_if_ABSTFN_contains_backslash
def test_realpath_curdir(self):
self.assertEqual(realpath('.'), os.getcwd())
self.assertEqual(realpath('./.'), os.getcwd())
self.assertEqual(realpath('/'.join(['.'] * 100)), os.getcwd())
self.assertEqual(realpath(b'.'), os.getcwdb())
self.assertEqual(realpath(b'./.'), os.getcwdb())
self.assertEqual(realpath(b'/'.join([b'.'] * 100)), os.getcwdb())
@skip_if_ABSTFN_contains_backslash
def test_realpath_pardir(self):
self.assertEqual(realpath('..'), dirname(os.getcwd()))
self.assertEqual(realpath('../..'), dirname(dirname(os.getcwd())))
self.assertEqual(realpath('/'.join(['..'] * 100)), '/')
self.assertEqual(realpath(b'..'), dirname(os.getcwdb()))
self.assertEqual(realpath(b'../..'), dirname(dirname(os.getcwdb())))
self.assertEqual(realpath(b'/'.join([b'..'] * 100)), b'/')
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_basic(self):
# Basic operation.
try:
os.symlink(ABSTFN+"1", ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN+"1")
finally:
os_helper.unlink(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_strict(self):
# Bug #43757: raise FileNotFoundError in strict mode if we encounter
# a path that does not exist.
try:
os.symlink(ABSTFN+"1", ABSTFN)
self.assertRaises(FileNotFoundError, realpath, ABSTFN, strict=True)
self.assertRaises(FileNotFoundError, realpath, ABSTFN + "2", strict=True)
finally:
os_helper.unlink(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_relative(self):
try:
os.symlink(posixpath.relpath(ABSTFN+"1"), ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN+"1")
finally:
os_helper.unlink(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_missing_pardir(self):
try:
os.symlink(os_helper.TESTFN + "1", os_helper.TESTFN)
self.assertEqual(realpath("nonexistent/../" + os_helper.TESTFN), ABSTFN + "1")
finally:
os_helper.unlink(os_helper.TESTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_symlink_loops(self):
# Bug #930024, return the path unchanged if we get into an infinite
# symlink loop in non-strict mode (default).
try:
os.symlink(ABSTFN, ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN)
os.symlink(ABSTFN+"1", ABSTFN+"2")
os.symlink(ABSTFN+"2", ABSTFN+"1")
self.assertEqual(realpath(ABSTFN+"1"), ABSTFN+"1")
self.assertEqual(realpath(ABSTFN+"2"), ABSTFN+"2")
self.assertEqual(realpath(ABSTFN+"1/x"), ABSTFN+"1/x")
self.assertEqual(realpath(ABSTFN+"1/.."), dirname(ABSTFN))
self.assertEqual(realpath(ABSTFN+"1/../x"), dirname(ABSTFN) + "/x")
os.symlink(ABSTFN+"x", ABSTFN+"y")
self.assertEqual(realpath(ABSTFN+"1/../" + basename(ABSTFN) + "y"),
ABSTFN + "x")
self.assertEqual(realpath(ABSTFN+"1/../" + basename(ABSTFN) + "1"),
ABSTFN + "1")
os.symlink(basename(ABSTFN) + "a/b", ABSTFN+"a")
self.assertEqual(realpath(ABSTFN+"a"), ABSTFN+"a/b")
os.symlink("../" + basename(dirname(ABSTFN)) + "/" +
basename(ABSTFN) + "c", ABSTFN+"c")
self.assertEqual(realpath(ABSTFN+"c"), ABSTFN+"c")
# Test using relative path as well.
with os_helper.change_cwd(dirname(ABSTFN)):
self.assertEqual(realpath(basename(ABSTFN)), ABSTFN)
finally:
os_helper.unlink(ABSTFN)
os_helper.unlink(ABSTFN+"1")
os_helper.unlink(ABSTFN+"2")
os_helper.unlink(ABSTFN+"y")
os_helper.unlink(ABSTFN+"c")
os_helper.unlink(ABSTFN+"a")
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_symlink_loops_strict(self):
# Bug #43757, raise OSError if we get into an infinite symlink loop in
# strict mode.
try:
os.symlink(ABSTFN, ABSTFN)
self.assertRaises(OSError, realpath, ABSTFN, strict=True)
os.symlink(ABSTFN+"1", ABSTFN+"2")
os.symlink(ABSTFN+"2", ABSTFN+"1")
self.assertRaises(OSError, realpath, ABSTFN+"1", strict=True)
self.assertRaises(OSError, realpath, ABSTFN+"2", strict=True)
self.assertRaises(OSError, realpath, ABSTFN+"1/x", strict=True)
self.assertRaises(OSError, realpath, ABSTFN+"1/..", strict=True)
self.assertRaises(OSError, realpath, ABSTFN+"1/../x", strict=True)
os.symlink(ABSTFN+"x", ABSTFN+"y")
self.assertRaises(OSError, realpath,
ABSTFN+"1/../" + basename(ABSTFN) + "y", strict=True)
self.assertRaises(OSError, realpath,
ABSTFN+"1/../" + basename(ABSTFN) + "1", strict=True)
os.symlink(basename(ABSTFN) + "a/b", ABSTFN+"a")
self.assertRaises(OSError, realpath, ABSTFN+"a", strict=True)
os.symlink("../" + basename(dirname(ABSTFN)) + "/" +
basename(ABSTFN) + "c", ABSTFN+"c")
self.assertRaises(OSError, realpath, ABSTFN+"c", strict=True)
# Test using relative path as well.
with os_helper.change_cwd(dirname(ABSTFN)):
self.assertRaises(OSError, realpath, basename(ABSTFN), strict=True)
finally:
os_helper.unlink(ABSTFN)
os_helper.unlink(ABSTFN+"1")
os_helper.unlink(ABSTFN+"2")
os_helper.unlink(ABSTFN+"y")
os_helper.unlink(ABSTFN+"c")
os_helper.unlink(ABSTFN+"a")
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_repeated_indirect_symlinks(self):
# Issue #6975.
try:
os.mkdir(ABSTFN)
os.symlink('../' + basename(ABSTFN), ABSTFN + '/self')
os.symlink('self/self/self', ABSTFN + '/link')
self.assertEqual(realpath(ABSTFN + '/link'), ABSTFN)
finally:
os_helper.unlink(ABSTFN + '/self')
os_helper.unlink(ABSTFN + '/link')
safe_rmdir(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_deep_recursion(self):
depth = 10
try:
os.mkdir(ABSTFN)
for i in range(depth):
os.symlink('/'.join(['%d' % i] * 10), ABSTFN + '/%d' % (i + 1))
os.symlink('.', ABSTFN + '/0')
self.assertEqual(realpath(ABSTFN + '/%d' % depth), ABSTFN)
# Test using relative path as well.
with os_helper.change_cwd(ABSTFN):
self.assertEqual(realpath('%d' % depth), ABSTFN)
finally:
for i in range(depth + 1):
os_helper.unlink(ABSTFN + '/%d' % i)
safe_rmdir(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_resolve_parents(self):
# We also need to resolve any symlinks in the parents of a relative
# path passed to realpath. E.g.: current working directory is
# /usr/doc with 'doc' being a symlink to /usr/share/doc. We call
# realpath("a"). This should return /usr/share/doc/a/.
try:
os.mkdir(ABSTFN)
os.mkdir(ABSTFN + "/y")
os.symlink(ABSTFN + "/y", ABSTFN + "/k")
with os_helper.change_cwd(ABSTFN + "/k"):
self.assertEqual(realpath("a"), ABSTFN + "/y/a")
finally:
os_helper.unlink(ABSTFN + "/k")
safe_rmdir(ABSTFN + "/y")
safe_rmdir(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_resolve_before_normalizing(self):
# Bug #990669: Symbolic links should be resolved before we
# normalize the path. E.g.: if we have directories 'a', 'k' and 'y'
# in the following hierarchy:
# a/k/y
#
# and a symbolic link 'link-y' pointing to 'y' in directory 'a',
# then realpath("link-y/..") should return 'k', not 'a'.
try:
os.mkdir(ABSTFN)
os.mkdir(ABSTFN + "/k")
os.mkdir(ABSTFN + "/k/y")
os.symlink(ABSTFN + "/k/y", ABSTFN + "/link-y")
# Absolute path.
self.assertEqual(realpath(ABSTFN + "/link-y/.."), ABSTFN + "/k")
# Relative path.
with os_helper.change_cwd(dirname(ABSTFN)):
self.assertEqual(realpath(basename(ABSTFN) + "/link-y/.."),
ABSTFN + "/k")
finally:
os_helper.unlink(ABSTFN + "/link-y")
safe_rmdir(ABSTFN + "/k/y")
safe_rmdir(ABSTFN + "/k")
safe_rmdir(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
def test_realpath_resolve_first(self):
# Bug #1213894: The first component of the path, if not absolute,
# must be resolved too.
try:
os.mkdir(ABSTFN)
os.mkdir(ABSTFN + "/k")
os.symlink(ABSTFN, ABSTFN + "link")
with os_helper.change_cwd(dirname(ABSTFN)):
base = basename(ABSTFN)
self.assertEqual(realpath(base + "link"), ABSTFN)
self.assertEqual(realpath(base + "link/k"), ABSTFN + "/k")
finally:
os_helper.unlink(ABSTFN + "link")
safe_rmdir(ABSTFN + "/k")
safe_rmdir(ABSTFN)
@os_helper.skip_unless_symlink
@skip_if_ABSTFN_contains_backslash
@unittest.skipIf(os.chmod not in os.supports_follow_symlinks, "Can't set symlink permissions")
@unittest.skipIf(sys.platform != "darwin", "only macOS requires read permission to readlink()")
def test_realpath_unreadable_symlink(self):
try:
os.symlink(ABSTFN+"1", ABSTFN)
os.chmod(ABSTFN, 0o000, follow_symlinks=False)
self.assertEqual(realpath(ABSTFN), ABSTFN)
self.assertEqual(realpath(ABSTFN + '/foo'), ABSTFN + '/foo')
self.assertEqual(realpath(ABSTFN + '/../foo'), dirname(ABSTFN) + '/foo')
self.assertEqual(realpath(ABSTFN + '/foo/..'), ABSTFN)
with self.assertRaises(PermissionError):
realpath(ABSTFN, strict=True)
finally:
os.chmod(ABSTFN, 0o755, follow_symlinks=False)
os.unlink(ABSTFN)
def test_relpath(self):
(real_getcwd, os.getcwd) = (os.getcwd, lambda: r"/home/user/bar")
try:
curdir = os.path.split(os.getcwd())[-1]
self.assertRaises(TypeError, posixpath.relpath, None)
self.assertRaises(ValueError, posixpath.relpath, "")
self.assertEqual(posixpath.relpath("a"), "a")
self.assertEqual(posixpath.relpath(posixpath.abspath("a")), "a")
self.assertEqual(posixpath.relpath("a/b"), "a/b")
self.assertEqual(posixpath.relpath("../a/b"), "../a/b")
self.assertEqual(posixpath.relpath("a", "../b"), "../"+curdir+"/a")
self.assertEqual(posixpath.relpath("a/b", "../c"),
"../"+curdir+"/a/b")
self.assertEqual(posixpath.relpath("a", "b/c"), "../../a")
self.assertEqual(posixpath.relpath("a", "a"), ".")
self.assertEqual(posixpath.relpath("/foo/bar/bat", "/x/y/z"), '../../../foo/bar/bat')
self.assertEqual(posixpath.relpath("/foo/bar/bat", "/foo/bar"), 'bat')
self.assertEqual(posixpath.relpath("/foo/bar/bat", "/"), 'foo/bar/bat')
self.assertEqual(posixpath.relpath("/", "/foo/bar/bat"), '../../..')
self.assertEqual(posixpath.relpath("/foo/bar/bat", "/x"), '../foo/bar/bat')
self.assertEqual(posixpath.relpath("/x", "/foo/bar/bat"), '../../../x')
self.assertEqual(posixpath.relpath("/", "/"), '.')
self.assertEqual(posixpath.relpath("/a", "/a"), '.')
self.assertEqual(posixpath.relpath("/a/b", "/a/b"), '.')
finally:
os.getcwd = real_getcwd
def test_relpath_bytes(self):
(real_getcwdb, os.getcwdb) = (os.getcwdb, lambda: br"/home/user/bar")
try:
curdir = os.path.split(os.getcwdb())[-1]
self.assertRaises(ValueError, posixpath.relpath, b"")
self.assertEqual(posixpath.relpath(b"a"), b"a")
self.assertEqual(posixpath.relpath(posixpath.abspath(b"a")), b"a")
self.assertEqual(posixpath.relpath(b"a/b"), b"a/b")
self.assertEqual(posixpath.relpath(b"../a/b"), b"../a/b")
self.assertEqual(posixpath.relpath(b"a", b"../b"),
b"../"+curdir+b"/a")
self.assertEqual(posixpath.relpath(b"a/b", b"../c"),
b"../"+curdir+b"/a/b")
self.assertEqual(posixpath.relpath(b"a", b"b/c"), b"../../a")
self.assertEqual(posixpath.relpath(b"a", b"a"), b".")
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/x/y/z"), b'../../../foo/bar/bat')
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/foo/bar"), b'bat')
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/"), b'foo/bar/bat')
self.assertEqual(posixpath.relpath(b"/", b"/foo/bar/bat"), b'../../..')
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/x"), b'../foo/bar/bat')
self.assertEqual(posixpath.relpath(b"/x", b"/foo/bar/bat"), b'../../../x')
self.assertEqual(posixpath.relpath(b"/", b"/"), b'.')
self.assertEqual(posixpath.relpath(b"/a", b"/a"), b'.')
self.assertEqual(posixpath.relpath(b"/a/b", b"/a/b"), b'.')
self.assertRaises(TypeError, posixpath.relpath, b"bytes", "str")
self.assertRaises(TypeError, posixpath.relpath, "str", b"bytes")
finally:
os.getcwdb = real_getcwdb
def test_commonpath(self):
def check(paths, expected):
self.assertEqual(posixpath.commonpath(paths), expected)
self.assertEqual(posixpath.commonpath([os.fsencode(p) for p in paths]),
os.fsencode(expected))
def check_error(exc, paths):
self.assertRaises(exc, posixpath.commonpath, paths)
self.assertRaises(exc, posixpath.commonpath,
[os.fsencode(p) for p in paths])
self.assertRaises(TypeError, posixpath.commonpath, None)
self.assertRaises(ValueError, posixpath.commonpath, [])
self.assertRaises(ValueError, posixpath.commonpath, iter([]))
check_error(ValueError, ['/usr', 'usr'])
check_error(ValueError, ['usr', '/usr'])
check(['/usr/local'], '/usr/local')
check(['/usr/local', '/usr/local'], '/usr/local')
check(['/usr/local/', '/usr/local'], '/usr/local')
check(['/usr/local/', '/usr/local/'], '/usr/local')
check(['/usr//local', '//usr/local'], '/usr/local')
check(['/usr/./local', '/./usr/local'], '/usr/local')
check(['/', '/dev'], '/')
check(['/usr', '/dev'], '/')
check(['/usr/lib/', '/usr/lib/python3'], '/usr/lib')
check(['/usr/lib/', '/usr/lib64/'], '/usr')
check(['/usr/lib', '/usr/lib64'], '/usr')
check(['/usr/lib/', '/usr/lib64'], '/usr')
check(['spam'], 'spam')
check(['spam', 'spam'], 'spam')
check(['spam', 'alot'], '')
check(['and/jam', 'and/spam'], 'and')
check(['and//jam', 'and/spam//'], 'and')
check(['and/./jam', './and/spam'], 'and')
check(['and/jam', 'and/spam', 'alot'], '')
check(['and/jam', 'and/spam', 'and'], 'and')
check([''], '')
check(['', 'spam/alot'], '')
check_error(ValueError, ['', '/spam/alot'])
self.assertRaises(TypeError, posixpath.commonpath,
[b'/usr/lib/', '/usr/lib/python3'])
self.assertRaises(TypeError, posixpath.commonpath,
[b'/usr/lib/', 'usr/lib/python3'])
self.assertRaises(TypeError, posixpath.commonpath,
[b'usr/lib/', '/usr/lib/python3'])
self.assertRaises(TypeError, posixpath.commonpath,
['/usr/lib/', b'/usr/lib/python3'])
self.assertRaises(TypeError, posixpath.commonpath,
['/usr/lib/', b'usr/lib/python3'])
self.assertRaises(TypeError, posixpath.commonpath,
['usr/lib/', b'/usr/lib/python3'])
class PosixCommonTest(test_genericpath.CommonTest, unittest.TestCase):
pathmodule = posixpath
attributes = ['relpath', 'samefile', 'sameopenfile', 'samestat']
class PathLikeTests(unittest.TestCase):
path = posixpath
def setUp(self):
self.file_name = os_helper.TESTFN
self.file_path = FakePath(os_helper.TESTFN)
self.addCleanup(os_helper.unlink, self.file_name)
with open(self.file_name, 'xb', 0) as file:
file.write(b"test_posixpath.PathLikeTests")
def assertPathEqual(self, func):
self.assertEqual(func(self.file_path), func(self.file_name))
def test_path_normcase(self):
self.assertPathEqual(self.path.normcase)
def test_path_isabs(self):
self.assertPathEqual(self.path.isabs)
def test_path_join(self):
self.assertEqual(self.path.join('a', FakePath('b'), 'c'),
self.path.join('a', 'b', 'c'))
def test_path_split(self):
self.assertPathEqual(self.path.split)
def test_path_splitext(self):
self.assertPathEqual(self.path.splitext)
def test_path_splitdrive(self):
self.assertPathEqual(self.path.splitdrive)
def test_path_splitroot(self):
self.assertPathEqual(self.path.splitroot)
def test_path_basename(self):
self.assertPathEqual(self.path.basename)
def test_path_dirname(self):
self.assertPathEqual(self.path.dirname)
def test_path_islink(self):
self.assertPathEqual(self.path.islink)
def test_path_lexists(self):
self.assertPathEqual(self.path.lexists)
def test_path_ismount(self):
self.assertPathEqual(self.path.ismount)
def test_path_expanduser(self):
self.assertPathEqual(self.path.expanduser)
def test_path_expandvars(self):
self.assertPathEqual(self.path.expandvars)
def test_path_normpath(self):
self.assertPathEqual(self.path.normpath)
def test_path_abspath(self):
self.assertPathEqual(self.path.abspath)
def test_path_realpath(self):
self.assertPathEqual(self.path.realpath)
def test_path_relpath(self):
self.assertPathEqual(self.path.relpath)
def test_path_commonpath(self):
common_path = self.path.commonpath([self.file_path, self.file_name])
self.assertEqual(common_path, self.file_name)
if __name__=="__main__":
unittest.main()
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