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Mini Shell
#
# Copyright 2009 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unit tests for fake_os.FakeOsModule."""
import errno
import os
import stat
import sys
import unittest
from pyfakefs.helpers import IN_DOCKER, IS_PYPY, get_uid, get_gid
from pyfakefs import fake_filesystem, fake_os, fake_open, fake_file
from pyfakefs.fake_filesystem import (
FakeFileOpen,
is_root,
set_uid,
set_gid,
)
from pyfakefs.extra_packages import (
use_scandir,
use_scandir_package,
use_builtin_scandir,
)
from pyfakefs.tests.test_utils import TestCase, RealFsTestCase
class FakeOsModuleTestBase(RealFsTestCase):
def createTestFile(self, path):
self.create_file(path)
self.assertTrue(self.os.path.exists(path))
st = self.os.stat(path)
self.assertEqual(0o666, stat.S_IMODE(st.st_mode))
self.assertTrue(st.st_mode & stat.S_IFREG)
self.assertFalse(st.st_mode & stat.S_IFDIR)
def createTestDirectory(self, path):
self.create_dir(path)
self.assertTrue(self.os.path.exists(path))
st = self.os.stat(path)
self.assertEqual(0o777, stat.S_IMODE(st.st_mode))
self.assertFalse(st.st_mode & stat.S_IFREG)
self.assertTrue(st.st_mode & stat.S_IFDIR)
class FakeOsModuleTest(FakeOsModuleTestBase):
def setUp(self):
super(FakeOsModuleTest, self).setUp()
self.rwx = self.os.R_OK | self.os.W_OK | self.os.X_OK
self.rw = self.os.R_OK | self.os.W_OK
def test_chdir(self):
"""chdir should work on a directory."""
directory = self.make_path("foo")
self.create_dir(directory)
self.os.chdir(directory)
def test_chdir_fails_non_exist(self):
"""chdir should raise OSError if the target does not exist."""
directory = self.make_path("no", "such", "directory")
self.assert_raises_os_error(errno.ENOENT, self.os.chdir, directory)
def test_chdir_fails_non_directory(self):
"""chdir should raise OSError if the target is not a directory."""
filename = self.make_path("foo", "bar")
self.create_file(filename)
self.assert_raises_os_error(errno.ENOTDIR, self.os.chdir, filename)
def test_consecutive_chdir(self):
"""Consecutive relative chdir calls should work."""
dir1 = self.make_path("foo")
dir2 = "bar"
full_dirname = self.os.path.join(dir1, dir2)
self.create_dir(full_dirname)
self.os.chdir(dir1)
self.os.chdir(dir2)
# use real path to handle symlink /var to /private/var in MacOs
self.assertEqual(
os.path.realpath(self.os.getcwd()), os.path.realpath(full_dirname)
)
def test_backwards_chdir(self):
"""chdir into '..' should behave appropriately."""
# skipping real fs test - can't test root dir
self.skip_real_fs()
rootdir = self.os.getcwd()
dirname = "foo"
abs_dirname = self.os.path.abspath(dirname)
self.filesystem.create_dir(dirname)
self.os.chdir(dirname)
self.assertEqual(abs_dirname, self.os.getcwd())
self.os.chdir("..")
self.assertEqual(rootdir, self.os.getcwd())
self.os.chdir(self.os.path.join(dirname, ".."))
self.assertEqual(rootdir, self.os.getcwd())
def test_get_cwd(self):
# skipping real fs test - can't test root dir
self.skip_real_fs()
dirname = self.make_path("foo", "bar")
self.create_dir(dirname)
self.assertEqual(self.filesystem.root_dir_name, self.os.getcwd())
self.os.chdir(dirname)
self.assertEqual(dirname, self.os.getcwd())
def test_listdir(self):
self.assert_raises_os_error(
errno.ENOENT, self.os.listdir, "non_existing/fake_dir"
)
directory = self.make_path("xyzzy", "plugh")
files = ["foo", "bar", "baz"]
for f in files:
self.create_file(self.os.path.join(directory, f))
files.sort()
self.assertEqual(files, sorted(self.os.listdir(directory)))
def test_listdir_uses_open_fd_as_path(self):
self.check_posix_only()
if os.listdir not in os.supports_fd:
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.listdir, 500)
dir_path = self.make_path("xyzzy", "plugh")
files = ["foo", "bar", "baz"]
for f in files:
self.create_file(self.os.path.join(dir_path, f))
files.sort()
path_des = self.os.open(dir_path, os.O_RDONLY)
self.assertEqual(files, sorted(self.os.listdir(path_des)))
def test_listdir_returns_list(self):
directory_root = self.make_path("xyzzy")
self.os.mkdir(directory_root)
directory = self.os.path.join(directory_root, "bug")
self.os.mkdir(directory)
self.create_file(self.make_path(directory, "foo"))
self.assertEqual(["foo"], self.os.listdir(directory))
def test_listdir_on_symlink(self):
self.skip_if_symlink_not_supported()
directory = self.make_path("xyzzy")
files = ["foo", "bar", "baz"]
for f in files:
self.create_file(self.make_path(directory, f))
self.create_symlink(self.make_path("symlink"), self.make_path("xyzzy"))
files.sort()
self.assertEqual(files, sorted(self.os.listdir(self.make_path("symlink"))))
def test_listdir_error(self):
file_path = self.make_path("foo", "bar", "baz")
self.create_file(file_path)
self.assert_raises_os_error(errno.ENOTDIR, self.os.listdir, file_path)
def test_exists_current_dir(self):
self.assertTrue(self.os.path.exists("."))
def test_listdir_current(self):
files = ["foo", "bar", "baz"]
for f in files:
self.create_file(self.make_path(f))
files.sort()
self.assertEqual(files, sorted(self.os.listdir(self.base_path)))
def test_fdopen(self):
file_path1 = self.make_path("some_file1")
self.create_file(file_path1, contents="contents here1")
with self.open(file_path1, "r") as fake_file1:
fileno = fake_file1.fileno()
fake_file2 = self.os.fdopen(fileno)
self.assertNotEqual(fake_file2, fake_file1)
with self.assertRaises(TypeError):
self.os.fdopen(None)
with self.assertRaises(TypeError):
self.os.fdopen("a string")
def test_out_of_range_fdopen(self):
# test some file descriptor that is clearly out of range
self.assert_raises_os_error(errno.EBADF, self.os.fdopen, 500)
def test_closed_file_descriptor(self):
first_path = self.make_path("some_file1")
second_path = self.make_path("some_file2")
third_path = self.make_path("some_file3")
self.create_file(first_path, contents="contents here1")
self.create_file(second_path, contents="contents here2")
self.create_file(third_path, contents="contents here3")
fake_file1 = self.open(first_path, "r")
fake_file2 = self.open(second_path, "r")
fake_file3 = self.open(third_path, "r")
fileno1 = fake_file1.fileno()
fileno2 = fake_file2.fileno()
fileno3 = fake_file3.fileno()
self.os.close(fileno2)
self.assert_raises_os_error(errno.EBADF, self.os.close, fileno2)
self.assertEqual(fileno1, fake_file1.fileno())
self.assertEqual(fileno3, fake_file3.fileno())
with self.os.fdopen(fileno1) as f:
self.assertFalse(f is fake_file1)
with self.os.fdopen(fileno3) as f:
self.assertFalse(f is fake_file3)
self.assert_raises_os_error(errno.EBADF, self.os.fdopen, fileno2)
def test_fdopen_mode(self):
self.skip_real_fs()
file_path1 = self.make_path("some_file1")
self.create_file(file_path1, contents="contents here1")
self.os.chmod(file_path1, (stat.S_IFREG | 0o666) ^ stat.S_IWRITE)
fake_file1 = self.open(file_path1, "r")
fileno1 = fake_file1.fileno()
self.os.fdopen(fileno1)
self.os.fdopen(fileno1, "r")
if not is_root():
with self.assertRaises(OSError):
self.os.fdopen(fileno1, "w")
else:
self.os.fdopen(fileno1, "w")
self.os.close(fileno1)
def test_fstat(self):
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path, contents="ABCDE")
with self.open(file_path) as file_obj:
fileno = file_obj.fileno()
self.assertTrue(stat.S_IFREG & self.os.fstat(fileno)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.fstat(fileno).st_mode)
self.assertEqual(5, self.os.fstat(fileno)[stat.ST_SIZE])
def test_stat(self):
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path, contents="ABCDE")
self.assertTrue(stat.S_IFDIR & self.os.stat(directory)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path).st_mode)
self.assertEqual(5, self.os.stat(file_path)[stat.ST_SIZE])
def test_st_blocks(self):
self.check_posix_only()
file_path = self.make_path("foo1")
self.create_file(file_path, contents=b"")
self.assertEqual(0, self.os.stat(file_path).st_blocks)
file_path = self.make_path("foo2")
self.create_file(file_path, contents=b"t")
self.assertEqual(8, self.os.stat(file_path).st_blocks)
file_path = self.make_path("foo3")
self.create_file(file_path, contents=b"t" * 4095)
self.assertEqual(8, self.os.stat(file_path).st_blocks)
file_path = self.make_path("foo4")
self.create_file(file_path, contents=b"t" * 4096)
self.assertEqual(8, self.os.stat(file_path).st_blocks)
file_path = self.make_path("foo5")
self.create_file(file_path, contents=b"t" * 4097)
self.assertEqual(16, self.os.stat(file_path).st_blocks)
def test_no_st_blocks_in_windows(self):
self.check_windows_only()
file_path = self.make_path("foo")
self.create_file(file_path, contents=b"")
with self.assertRaises(AttributeError):
self.os.stat(file_path).st_blocks
def test_stat_with_unc_path(self):
self.skip_real_fs()
self.check_windows_only()
directory = "//root/share/dir"
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path, contents="ABCDE")
self.assertTrue(stat.S_IFDIR & self.os.stat(directory)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path).st_mode)
self.assertEqual(5, self.os.stat(file_path)[stat.ST_SIZE])
def test_stat_with_drive(self):
self.skip_real_fs()
self.check_windows_only()
directory = "C:/foo/dir"
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path, contents="ABCDE")
self.assertTrue(stat.S_IFDIR & self.os.stat(directory)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path).st_mode)
self.assertEqual(5, self.os.stat(file_path)[stat.ST_SIZE])
def test_stat_uses_open_fd_as_path(self):
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.stat, 5)
file_path = self.make_path("foo", "bar")
self.create_file(file_path)
with self.open(file_path) as f:
self.assertTrue(stat.S_IFREG & self.os.stat(f.filedes)[stat.ST_MODE])
def test_stat_no_follow_symlinks_posix(self):
"""Test that stat with follow_symlinks=False behaves like lstat."""
self.check_posix_only()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(
len(file_contents),
self.os.stat(file_path, follow_symlinks=False)[stat.ST_SIZE],
)
self.assertEqual(
len(base_name),
self.os.stat(link_path, follow_symlinks=False)[stat.ST_SIZE],
)
def test_stat_no_follow_symlinks_windows(self):
"""Test that stat with follow_symlinks=False behaves like lstat."""
self.check_windows_only()
self.skip_if_symlink_not_supported()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(
len(file_contents),
self.os.stat(file_path, follow_symlinks=False)[stat.ST_SIZE],
)
self.assertEqual(
0, self.os.stat(link_path, follow_symlinks=False)[stat.ST_SIZE]
)
def test_lstat_size_posix(self):
self.check_posix_only()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(len(file_contents), self.os.lstat(file_path)[stat.ST_SIZE])
self.assertEqual(len(base_name), self.os.lstat(link_path)[stat.ST_SIZE])
def test_lstat_size_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(len(file_contents), self.os.lstat(file_path)[stat.ST_SIZE])
self.assertEqual(0, self.os.lstat(link_path)[stat.ST_SIZE])
def test_lstat_trailing_sep(self):
# regression test for #342
stat_result = self.os.lstat(self.base_path)
self.assertEqual(
stat_result, self.os.lstat(self.base_path + self.path_separator())
)
self.assertEqual(
stat_result,
self.os.lstat(
self.base_path + self.path_separator() + self.path_separator()
),
)
def test_stat_with_byte_string(self):
stat_str = self.os.stat(self.base_path)
base_path_bytes = self.base_path.encode("utf8")
stat_bytes = self.os.stat(base_path_bytes)
self.assertEqual(stat_bytes, stat_str)
def test_lstat_with_byte_string(self):
stat_str = self.os.lstat(self.base_path)
base_path_bytes = self.base_path.encode("utf8")
stat_bytes = self.os.lstat(base_path_bytes)
self.assertEqual(stat_bytes, stat_str)
def test_stat_with_current_dir(self):
# regression test for #516
stat_result = self.os.stat(".")
lstat_result = self.os.lstat(".")
self.assertEqual(stat_result, lstat_result)
def test_exists_with_trailing_sep(self):
# regression test for #364
file_path = self.make_path("alpha")
self.create_file(file_path)
self.assertFalse(self.os.path.exists(file_path + self.os.sep))
def test_mkdir_with_trailing_sep(self):
# regression test for #367
dir_path = self.make_path("foo")
self.os.mkdir(dir_path + self.os.sep + self.os.sep)
self.assertTrue(self.os.path.exists(dir_path))
def test_readlink_empty_path(self):
self.check_posix_only()
self.assert_raises_os_error(errno.ENOENT, self.os.readlink, "")
def test_readlink_ending_with_sep_posix(self):
# regression test for #359
self.check_posix_only()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assert_raises_os_error(
errno.EINVAL, self.os.readlink, link_path + self.os.sep
)
def test_lstat_symlink_with_trailing_sep_linux(self):
# regression test for #366
self.check_linux_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
# used to raise
self.assertTrue(self.os.lstat(link_path + self.os.sep).st_mode)
def test_lstat_symlink_with_trailing_sep_macos(self):
# regression test for #366
self.check_macos_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
# used to raise
self.assertTrue(self.os.lstat(link_path + self.os.sep).st_mode)
def test_readlink_ending_with_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assert_equal_paths(
self.base_path, self.os.readlink(link_path + self.os.sep)
)
def test_islink_with_trailing_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assertTrue(self.os.path.islink(link_path + self.os.path.sep))
def test_islink_with_trailing_sep_linux(self):
self.check_linux_only()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assertFalse(self.os.path.islink(link_path + self.os.sep))
def test_islink_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assertFalse(self.os.path.islink(link_path + self.os.sep))
def check_getsize_raises_with_trailing_separator(self, error_nr):
file_path = self.make_path("bar")
self.create_file(file_path)
self.assert_raises_os_error(
error_nr, self.os.path.getsize, file_path + self.os.sep
)
def test_getsize_raises_with_trailing_separator_posix(self):
self.check_posix_only()
self.check_getsize_raises_with_trailing_separator(errno.ENOTDIR)
def test_getsize_raises_with_trailing_separator_windows(self):
self.check_windows_only()
self.check_getsize_raises_with_trailing_separator(errno.EINVAL)
def check_remove_link_ending_with_sep(self, error_nr):
# regression test for #360
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
self.assert_raises_os_error(error_nr, self.os.remove, link_path + self.os.sep)
def test_remove_link_ending_with_sep_linux(self):
self.check_linux_only()
self.check_remove_link_ending_with_sep(errno.ENOTDIR)
def test_remove_link_ending_with_sep_macos(self):
self.check_macos_only()
self.check_remove_link_ending_with_sep(errno.EPERM)
def test_remove_link_ending_with_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_remove_link_ending_with_sep(errno.EACCES)
def test_lstat_uses_open_fd_as_path(self):
self.skip_if_symlink_not_supported()
if os.lstat not in os.supports_fd:
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.lstat, 5)
file_path = self.make_path("foo", "bar")
link_path = self.make_path("foo", "link")
file_contents = b"contents"
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, file_path)
with self.open(file_path) as f:
self.assertEqual(len(file_contents), self.os.lstat(f.filedes)[stat.ST_SIZE])
def test_stat_non_existent_file(self):
# set up
file_path = self.make_path("non", "existent", "file")
self.assertFalse(self.os.path.exists(file_path))
# actual tests
try:
# Use try-catch to check exception attributes.
self.os.stat(file_path)
self.fail("Exception is expected.") # COV_NF_LINE
except OSError as os_error:
self.assertEqual(errno.ENOENT, os_error.errno)
self.assertEqual(file_path, os_error.filename)
def check_open_raises_with_trailing_separator(self, error_nr):
file_path = self.make_path("bar") + self.os.sep
self.assert_raises_os_error(
error_nr,
self.os.open,
file_path,
os.O_CREAT | os.O_WRONLY | os.O_TRUNC,
)
def test_open_raises_with_trailing_separator_linux(self):
self.check_linux_only()
self.check_open_raises_with_trailing_separator(errno.EISDIR)
def test_open_raises_with_trailing_separator_macos(self):
self.check_macos_only()
self.check_open_raises_with_trailing_separator(errno.ENOENT)
def test_open_raises_with_trailing_separator_windows(self):
self.check_windows_only()
self.check_open_raises_with_trailing_separator(errno.EINVAL)
def test_lexists_with_trailing_separator_linux_windows(self):
self.check_linux_and_windows()
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assertFalse(self.os.path.lexists(file_path + self.os.sep))
def test_lexists_with_trailing_separator_macos(self):
# regression test for #373
self.check_macos_only()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assertTrue(self.os.path.lexists(file_path + self.os.sep))
def test_islink_with_trailing_separator_linux_windows(self):
self.check_linux_and_windows()
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assertFalse(self.os.path.islink(file_path + self.os.sep))
def test_islink_with_trailing_separator_macos(self):
# regression test for #373
self.check_macos_only()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assertTrue(self.os.path.islink(file_path + self.os.sep))
def test_isfile_with_trailing_separator_linux_windows(self):
self.check_linux_and_windows()
file_path = self.make_path("foo")
self.create_file(file_path)
self.assertFalse(self.os.path.isfile(file_path + self.os.sep))
def test_isfile_with_trailing_separator_macos(self):
# regression test for #374
self.check_macos_only()
file_path = self.make_path("foo")
self.create_file(file_path)
self.assertFalse(self.os.path.isfile(file_path + self.os.sep))
def test_isfile_not_readable_file(self):
file_path = self.make_path("foo")
self.create_file(file_path, perm=0)
self.assertTrue(self.os.path.isfile(file_path))
def check_stat_with_trailing_separator(self, error_nr):
# regression test for #376
file_path = self.make_path("foo")
self.create_file(file_path)
self.assert_raises_os_error(error_nr, self.os.stat, file_path + self.os.sep)
def test_stat_with_trailing_separator_posix(self):
self.check_posix_only()
self.check_stat_with_trailing_separator(errno.ENOTDIR)
def test_stat_with_trailing_separator_windows(self):
self.check_windows_only()
self.check_stat_with_trailing_separator(errno.EINVAL)
def check_remove_with_trailing_separator(self, error_nr):
# regression test for #377
file_path = self.make_path("foo")
self.create_file(file_path)
self.assert_raises_os_error(error_nr, self.os.remove, file_path + self.os.sep)
def test_remove_with_trailing_separator_posix(self):
self.check_posix_only()
self.check_remove_with_trailing_separator(errno.ENOTDIR)
def test_remove_with_trailing_separator_windows(self):
self.check_windows_only()
self.check_remove_with_trailing_separator(errno.EINVAL)
def test_readlink(self):
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo", "bar", "baz")
target = self.make_path("tarJAY")
self.create_symlink(link_path, target)
self.assert_equal_paths(self.os.readlink(link_path), target)
def check_readlink_raises_if_path_is_not_a_link(self):
file_path = self.make_path("foo", "bar", "eleventyone")
self.create_file(file_path)
self.assert_raises_os_error(errno.EINVAL, self.os.readlink, file_path)
def test_readlink_raises_if_path_is_not_a_link_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_readlink_raises_if_path_is_not_a_link()
def test_readlink_raises_if_path_is_not_a_link_posix(self):
self.check_posix_only()
self.check_readlink_raises_if_path_is_not_a_link()
def check_readlink_raises_if_path_has_file(self, error_subtype):
self.create_file(self.make_path("a_file"))
file_path = self.make_path("a_file", "foo")
self.assert_raises_os_error(error_subtype, self.os.readlink, file_path)
file_path = self.make_path("a_file", "foo", "bar")
self.assert_raises_os_error(error_subtype, self.os.readlink, file_path)
def test_readlink_raises_if_path_has_file_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_readlink_raises_if_path_has_file(errno.ENOENT)
def test_readlink_raises_if_path_has_file_posix(self):
self.check_posix_only()
self.check_readlink_raises_if_path_has_file(errno.ENOTDIR)
def test_readlink_raises_if_path_does_not_exist(self):
self.skip_if_symlink_not_supported()
self.assert_raises_os_error(
errno.ENOENT, self.os.readlink, "/this/path/does/not/exist"
)
def test_readlink_raises_if_path_is_none(self):
self.skip_if_symlink_not_supported()
with self.assertRaises(TypeError):
self.os.readlink(None)
def test_broken_symlink_with_trailing_separator_linux(self):
self.check_linux_only()
file_path = self.make_path("foo")
link_path = self.make_path("link")
self.os.symlink(file_path, link_path)
self.assert_raises_os_error(
errno.EEXIST,
self.os.symlink,
link_path + self.os.sep,
link_path + self.os.sep,
)
def test_broken_symlink_with_trailing_separator_macos(self):
# regression test for #371
self.check_macos_only()
file_path = self.make_path("foo")
link_path = self.make_path("link")
self.os.symlink(file_path, link_path)
self.os.symlink(link_path + self.os.sep, link_path + self.os.sep)
def test_broken_symlink_with_trailing_separator_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo")
link_path = self.make_path("link")
self.os.symlink(file_path, link_path)
self.assert_raises_os_error(
errno.EINVAL,
self.os.symlink,
link_path + self.os.sep,
link_path + self.os.sep,
)
def test_circular_readlink_with_trailing_separator_linux(self):
# Regression test for #372
self.check_linux_only()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assert_raises_os_error(
errno.ELOOP, self.os.readlink, file_path + self.os.sep
)
def test_circular_readlink_with_trailing_separator_macos(self):
# Regression test for #372
self.check_macos_only()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.os.readlink(file_path + self.os.sep)
def test_circular_readlink_with_trailing_separator_windows(self):
# Regression test for #372
self.check_windows_only()
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo")
self.os.symlink(file_path, file_path)
self.assert_raises_os_error(
errno.EINVAL, self.os.readlink, file_path + self.os.sep
)
def test_readlink_with_links_in_path(self):
self.skip_if_symlink_not_supported()
self.create_symlink(
self.make_path("meyer", "lemon", "pie"), self.make_path("yum")
)
self.create_symlink(self.make_path("geo", "metro"), self.make_path("meyer"))
self.assert_equal_paths(
self.make_path("yum"),
self.os.readlink(self.make_path("geo", "metro", "lemon", "pie")),
)
def test_readlink_with_chained_links_in_path(self):
self.skip_if_symlink_not_supported()
self.create_symlink(
self.make_path("eastern", "european", "wolfhounds", "chase"),
self.make_path("cats"),
)
self.create_symlink(
self.make_path("russian"), self.make_path("eastern", "european")
)
self.create_symlink(
self.make_path("dogs"), self.make_path("russian", "wolfhounds")
)
self.assert_equal_paths(
self.make_path("cats"),
self.os.readlink(self.make_path("dogs", "chase")),
)
def check_remove_dir(self, dir_error):
directory = self.make_path("xyzzy")
dir_path = self.os.path.join(directory, "plugh")
self.create_dir(dir_path)
self.assertTrue(self.os.path.exists(dir_path))
self.assert_raises_os_error(dir_error, self.os.remove, dir_path)
self.assertTrue(self.os.path.exists(dir_path))
self.os.chdir(directory)
self.assert_raises_os_error(dir_error, self.os.remove, dir_path)
self.assertTrue(self.os.path.exists(dir_path))
self.assert_raises_os_error(errno.ENOENT, self.os.remove, "/plugh")
def test_remove_dir_linux(self):
self.check_linux_only()
self.check_remove_dir(errno.EISDIR)
def test_remove_dir_mac_os(self):
self.check_macos_only()
self.check_remove_dir(errno.EPERM)
def test_remove_dir_windows(self):
self.check_windows_only()
self.check_remove_dir(errno.EACCES)
def test_remove_dir_with_drive(self):
# regression test for issue #337
self.check_windows_only()
self.skip_real_fs()
dir_path = self.os.path.join("C:", "test")
self.filesystem.create_dir(dir_path)
self.assert_raises_os_error(errno.EACCES, self.os.remove, dir_path)
def test_remove_file(self):
directory = self.make_path("zzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.os.remove(file_path)
self.assertFalse(self.os.path.exists(file_path))
def test_remove_file_no_directory(self):
directory = self.make_path("zzy")
file_name = "plugh"
file_path = self.os.path.join(directory, file_name)
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.os.chdir(directory)
self.os.remove(file_name)
self.assertFalse(self.os.path.exists(file_path))
def test_remove_file_with_read_permission_raises_in_windows(self):
self.check_windows_only()
path = self.make_path("foo", "bar")
self.create_file(path)
self.os.chmod(path, 0o444)
self.assert_raises_os_error(errno.EACCES, self.os.remove, path)
self.os.chmod(path, 0o666)
def test_remove_file_with_read_permission_shall_succeed_in_posix(self):
self.check_posix_only()
path = self.make_path("foo", "bar")
self.create_file(path)
self.os.chmod(path, 0o444)
self.os.remove(path)
self.assertFalse(self.os.path.exists(path))
def test_remove_file_without_parent_permission_raises_in_posix(self):
self.check_posix_only()
parent_dir = self.make_path("foo")
path = self.os.path.join(parent_dir, "bar")
self.create_file(path)
self.os.chmod(parent_dir, 0o666) # missing execute permission
if not is_root():
self.assert_raises_os_error(errno.EACCES, self.os.remove, path)
else:
self.os.remove(path)
self.assertFalse(self.os.path.exists(path))
self.create_file(path)
self.os.chmod(parent_dir, 0o555) # missing write permission
if not is_root():
self.assert_raises_os_error(errno.EACCES, self.os.remove, path)
else:
self.os.remove(path)
self.assertFalse(self.os.path.exists(path))
self.create_file(path)
self.os.chmod(parent_dir, 0o333)
self.os.remove(path)
self.assertFalse(self.os.path.exists(path))
def test_remove_open_file_fails_under_windows(self):
self.check_windows_only()
path = self.make_path("foo", "bar")
self.create_file(path)
with self.open(path, "r"):
self.assert_raises_os_error(errno.EACCES, self.os.remove, path)
self.assertTrue(self.os.path.exists(path))
def test_remove_open_file_possible_under_posix(self):
self.check_posix_only()
path = self.make_path("foo", "bar")
self.create_file(path)
self.open(path, "r")
self.os.remove(path)
self.assertFalse(self.os.path.exists(path))
def test_remove_file_relative_path(self):
self.skip_real_fs()
original_dir = self.os.getcwd()
directory = self.make_path("zzy")
subdirectory = self.os.path.join(directory, "zzy")
file_name = "plugh"
file_path = self.os.path.join(directory, file_name)
file_path_relative = self.os.path.join("..", file_name)
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.create_dir(subdirectory)
self.assertTrue(self.os.path.exists(subdirectory))
self.os.chdir(subdirectory)
self.os.remove(file_path_relative)
self.assertFalse(self.os.path.exists(file_path_relative))
self.os.chdir(original_dir)
self.assertFalse(self.os.path.exists(file_path))
def check_remove_dir_raises_error(self, dir_error):
directory = self.make_path("zzy")
self.create_dir(directory)
self.assert_raises_os_error(dir_error, self.os.remove, directory)
def test_remove_dir_raises_error_linux(self):
self.check_linux_only()
self.check_remove_dir_raises_error(errno.EISDIR)
def test_remove_dir_raises_error_mac_os(self):
self.check_macos_only()
self.check_remove_dir_raises_error(errno.EPERM)
def test_remove_dir_raises_error_windows(self):
self.check_windows_only()
self.check_remove_dir_raises_error(errno.EACCES)
def test_remove_symlink_to_dir(self):
self.skip_if_symlink_not_supported()
directory = self.make_path("zzy")
link = self.make_path("link_to_dir")
self.create_dir(directory)
self.os.symlink(directory, link)
self.assertTrue(self.os.path.exists(directory))
self.assertTrue(self.os.path.exists(link))
self.os.remove(link)
self.assertTrue(self.os.path.exists(directory))
self.assertFalse(self.os.path.exists(link))
def test_unlink_raises_if_not_exist(self):
file_path = self.make_path("file", "does", "not", "exist")
self.assertFalse(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.ENOENT, self.os.unlink, file_path)
def test_rename_to_nonexistent_file(self):
"""Can rename a file to an unused name."""
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertFalse(self.os.path.exists(new_file_path))
self.os.rename(old_file_path, new_file_path)
self.assertFalse(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.check_contents(new_file_path, "test contents")
def test_rename_dir_to_symlink_posix(self):
self.check_posix_only()
link_path = self.make_path("link")
dir_path = self.make_path("dir")
link_target = self.os.path.join(dir_path, "link_target")
self.create_dir(dir_path)
self.os.symlink(link_target, link_path)
self.assert_raises_os_error(errno.ENOTDIR, self.os.rename, dir_path, link_path)
def test_rename_dir_to_symlink_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
dir_path = self.make_path("dir")
link_target = self.os.path.join(dir_path, "link_target")
self.create_dir(dir_path)
self.os.symlink(link_target, link_path)
self.assert_raises_os_error(errno.EEXIST, self.os.rename, dir_path, link_path)
def test_rename_file_to_symlink(self):
self.check_posix_only()
link_path = self.make_path("file_link")
file_path = self.make_path("file")
self.os.symlink(file_path, link_path)
self.create_file(file_path)
self.os.rename(file_path, link_path)
self.assertFalse(self.os.path.exists(file_path))
self.assertTrue(self.os.path.exists(link_path))
self.assertTrue(self.os.path.isfile(link_path))
def test_rename_symlink_to_symlink(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
self.create_dir(base_path)
link_path1 = self.os.path.join(base_path, "link1")
link_path2 = self.os.path.join(base_path, "link2")
self.os.symlink(base_path, link_path1)
self.os.symlink(base_path, link_path2)
self.os.rename(link_path1, link_path2)
self.assertFalse(self.os.path.exists(link_path1))
self.assertTrue(self.os.path.exists(link_path2))
def test_rename_symlink_to_symlink_for_parent_raises(self):
self.check_posix_only()
dir_link = self.make_path("dir_link")
dir_path = self.make_path("dir")
dir_in_dir_path = self.os.path.join(dir_link, "inner_dir")
self.create_dir(dir_path)
self.os.symlink(dir_path, dir_link)
self.create_dir(dir_in_dir_path)
self.assert_raises_os_error(
errno.EINVAL, self.os.rename, dir_path, dir_in_dir_path
)
def check_rename_case_with_symlink(self, result):
self.skip_if_symlink_not_supported()
self.check_case_insensitive_fs()
dir_path_lower = self.make_path("beta")
self.create_dir(dir_path_lower)
link_path = self.make_path("b")
self.os.symlink(self.base_path, link_path)
path1 = self.os.path.join(link_path, "Beta")
dir_path_upper = self.make_path("Beta")
self.os.rename(path1, dir_path_upper)
self.assertEqual(result, sorted(self.os.listdir(self.base_path)))
def test_rename_case_with_symlink_mac(self):
# Regression test for #322
self.check_macos_only()
self.check_rename_case_with_symlink(["b", "beta"])
def test_rename_case_with_symlink_windows(self):
self.check_windows_only()
self.check_rename_case_with_symlink(["Beta", "b"])
def test_recursive_rename_raises(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
self.create_dir(base_path)
new_path = self.os.path.join(base_path, "new_dir")
self.assert_raises_os_error(errno.EINVAL, self.os.rename, base_path, new_path)
def test_rename_file_to_parent_dir_file(self):
# Regression test for issue 230
dir_path = self.make_path("dir")
self.create_dir(dir_path)
file_path = self.make_path("old_file")
new_file_path = self.os.path.join(dir_path, "new_file")
self.create_file(file_path)
self.os.rename(file_path, new_file_path)
def test_rename_with_target_parent_file_raises_posix(self):
self.check_posix_only()
file_path = self.make_path("foo", "baz")
self.create_file(file_path)
self.assert_raises_os_error(
errno.ENOTDIR, self.os.rename, file_path, file_path + "/new"
)
def test_rename_with_target_parent_file_raises_windows(self):
self.check_windows_only()
file_path = self.make_path("foo", "baz")
self.create_file(file_path)
self.assert_raises_os_error(
errno.EACCES,
self.os.rename,
file_path,
self.os.path.join(file_path, "new"),
)
def test_rename_symlink_to_source(self):
self.check_posix_only()
base_path = self.make_path("foo")
link_path = self.os.path.join(base_path, "slink")
file_path = self.os.path.join(base_path, "file")
self.create_file(file_path)
self.os.symlink(file_path, link_path)
self.os.rename(link_path, file_path)
self.assertFalse(self.os.path.exists(file_path))
def test_rename_symlink_to_dir_raises(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "dir_link")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path, link_path)
self.assert_raises_os_error(errno.EISDIR, self.os.rename, link_path, dir_path)
def test_rename_broken_symlink(self):
self.check_posix_only()
base_path = self.make_path("foo")
self.create_dir(base_path)
link_path = self.os.path.join(base_path, "slink")
file_path = self.os.path.join(base_path, "file")
self.os.symlink(file_path, link_path)
self.os.rename(link_path, file_path)
self.assertFalse(self.os.path.exists(file_path))
self.assertTrue(self.os.path.lexists(file_path))
self.assertFalse(self.os.path.exists(link_path))
def test_rename_directory(self):
"""Can rename a directory to an unused name."""
for old_path, new_path in [("wxyyw", "xyzzy"), ("abccb", "cdeed")]:
old_path = self.make_path(old_path)
new_path = self.make_path(new_path)
self.create_file(self.os.path.join(old_path, "plugh"), contents="test")
self.assertTrue(self.os.path.exists(old_path))
self.assertFalse(self.os.path.exists(new_path))
self.os.rename(old_path, new_path)
self.assertFalse(self.os.path.exists(old_path))
self.assertTrue(self.os.path.exists(new_path))
self.check_contents(self.os.path.join(new_path, "plugh"), "test")
if not self.use_real_fs():
self.assertEqual(3, self.filesystem.get_object(new_path).st_nlink)
def check_rename_directory_to_existing_file_raises(self, error_nr):
dir_path = self.make_path("dir")
file_path = self.make_path("file")
self.create_dir(dir_path)
self.create_file(file_path)
self.assert_raises_os_error(error_nr, self.os.rename, dir_path, file_path)
def test_rename_directory_to_existing_file_raises_posix(self):
self.check_posix_only()
self.check_rename_directory_to_existing_file_raises(errno.ENOTDIR)
def test_rename_directory_to_existing_file_raises_windows(self):
self.check_windows_only()
self.check_rename_directory_to_existing_file_raises(errno.EEXIST)
def test_rename_to_existing_directory_should_raise_under_windows(self):
"""Renaming to an existing directory raises OSError under Windows."""
self.check_windows_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("foo", "baz")
self.create_dir(old_path)
self.create_dir(new_path)
self.assert_raises_os_error(errno.EEXIST, self.os.rename, old_path, new_path)
def test_rename_to_a_hardlink_of_same_file_should_do_nothing(self):
self.skip_real_fs_failure(skip_posix=False)
self.skip_if_symlink_not_supported()
file_path = self.make_path("dir", "file")
self.create_file(file_path)
link_path = self.make_path("link")
self.os.link(file_path, link_path)
self.os.rename(file_path, link_path)
self.assertTrue(self.os.path.exists(file_path))
self.assertTrue(self.os.path.exists(link_path))
def test_hardlink_works_with_symlink(self):
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo")
self.create_dir(base_path)
symlink_path = self.os.path.join(base_path, "slink")
self.os.symlink(base_path, symlink_path)
file_path = self.os.path.join(base_path, "slink", "beta")
self.create_file(file_path)
link_path = self.os.path.join(base_path, "slink", "gamma")
self.os.link(file_path, link_path)
self.assertTrue(self.os.path.exists(link_path))
self.assertFalse(self.os.path.islink(link_path))
def test_replace_existing_directory_should_raise_under_windows(self):
"""Renaming to an existing directory raises OSError under Windows."""
self.check_windows_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("foo", "baz")
self.create_dir(old_path)
self.create_dir(new_path)
self.assert_raises_os_error(errno.EACCES, self.os.replace, old_path, new_path)
def test_rename_to_existing_directory_under_posix(self):
"""Renaming to an existing directory changes the existing directory
under Posix."""
self.check_posix_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("xyzzy")
self.create_dir(self.os.path.join(old_path, "sub"))
self.create_dir(new_path)
self.os.rename(old_path, new_path)
self.assertTrue(self.os.path.exists(self.os.path.join(new_path, "sub")))
self.assertFalse(self.os.path.exists(old_path))
def test_rename_file_to_existing_directory_raises_under_posix(self):
self.check_posix_only()
file_path = self.make_path("foo", "bar", "baz")
new_path = self.make_path("xyzzy")
self.create_file(file_path)
self.create_dir(new_path)
self.assert_raises_os_error(errno.EISDIR, self.os.rename, file_path, new_path)
def test_rename_to_existing_dir_under_posix_raises_if_not_empty(self):
"""Renaming to an existing directory changes the existing directory
under Posix."""
self.check_posix_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("foo", "baz")
self.create_dir(self.os.path.join(old_path, "sub"))
self.create_dir(self.os.path.join(new_path, "sub"))
# not testing specific subtype:
# raises errno.ENOTEMPTY under Ubuntu 16.04, MacOS and pyfakefs
# but raises errno.EEXIST at least under Ubunto 14.04
with self.assertRaises(OSError):
self.os.rename(old_path, new_path)
def test_rename_to_another_device_should_raise(self):
"""Renaming to another filesystem device raises OSError."""
self.skip_real_fs()
self.filesystem.add_mount_point("/mount")
old_path = "/foo/bar"
new_path = "/mount/bar"
self.filesystem.create_file(old_path)
self.assert_raises_os_error(errno.EXDEV, self.os.rename, old_path, new_path)
def test_rename_to_existent_file_posix(self):
"""Can rename a file to a used name under Unix."""
self.check_posix_only()
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.os.rename(old_file_path, new_file_path)
self.assertFalse(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.check_contents(new_file_path, "test contents 1")
def test_rename_to_existent_file_windows(self):
"""Renaming a file to a used name raises OSError under Windows."""
self.check_windows_only()
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.assert_raises_os_error(
errno.EEXIST, self.os.rename, old_file_path, new_file_path
)
def test_replace_to_existent_file(self):
"""Replaces an existing file (does not work with `rename()` under
Windows)."""
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.os.replace(old_file_path, new_file_path)
self.assertFalse(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.check_contents(new_file_path, "test contents 1")
def test_rename_to_nonexistent_dir(self):
"""Can rename a file to a name in a nonexistent dir."""
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "no_such_path", "plugh_new")
self.create_file(old_file_path, contents="test contents")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertFalse(self.os.path.exists(new_file_path))
self.assert_raises_os_error(
errno.ENOENT, self.os.rename, old_file_path, new_file_path
)
self.assertTrue(self.os.path.exists(old_file_path))
self.assertFalse(self.os.path.exists(new_file_path))
self.check_contents(old_file_path, "test contents")
def test_rename_nonexistent_file_should_raise_error(self):
"""Can't rename a file that doesn't exist."""
self.assert_raises_os_error(
errno.ENOENT,
self.os.rename,
"nonexistent-foo",
"doesn't-matter-bar",
)
def test_rename_empty_dir(self):
"""Test a rename of an empty directory."""
directory = self.make_path("xyzzy")
before_dir = self.os.path.join(directory, "empty")
after_dir = self.os.path.join(directory, "unused")
self.create_dir(before_dir)
self.assertTrue(self.os.path.exists(self.os.path.join(before_dir, ".")))
self.assertFalse(self.os.path.exists(after_dir))
self.os.rename(before_dir, after_dir)
self.assertFalse(self.os.path.exists(before_dir))
self.assertTrue(self.os.path.exists(self.os.path.join(after_dir, ".")))
def test_rename_symlink(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
self.create_dir(base_path)
link_path = self.os.path.join(base_path, "link")
self.os.symlink(base_path, link_path)
file_path = self.os.path.join(link_path, "file")
new_file_path = self.os.path.join(link_path, "new")
self.create_file(file_path)
self.os.rename(file_path, new_file_path)
self.assertFalse(self.os.path.exists(file_path))
self.assertTrue(self.os.path.exists(new_file_path))
def check_append_mode_tell_after_truncate(self, tell_result):
file_path = self.make_path("baz")
with self.open(file_path, "w") as f0:
with self.open(file_path, "a") as f1:
f1.write("abcde")
f0.seek(2)
f0.truncate()
self.assertEqual(tell_result, f1.tell())
with self.open(file_path, mode="rb") as f:
self.assertEqual(b"\0\0abcde", f.read())
def test_append_mode_tell_linux_windows(self):
# Regression test for #300
self.check_linux_and_windows()
self.check_append_mode_tell_after_truncate(7)
def test_append_mode_tell_macos(self):
# Regression test for #300
self.check_macos_only()
self.check_append_mode_tell_after_truncate(7)
def test_tell_after_seek_in_append_mode(self):
# Regression test for #363
file_path = self.make_path("foo")
with self.open(file_path, "a") as f:
f.seek(1)
self.assertEqual(1, f.tell())
def test_tell_after_seekback_in_append_mode(self):
# Regression test for #414
file_path = self.make_path("foo")
with self.open(file_path, "a") as f:
f.write("aa")
f.seek(1)
self.assertEqual(1, f.tell())
def test_dir_with_trailing_sep_is_dir(self):
# regression test for #387
self.assertTrue(self, self.os.path.isdir(self.base_path + self.os.sep))
def check_rename_dir_with_trailing_sep(self, error):
dir_path = self.make_path("dir") + self.os.sep
self.os.mkdir(dir_path)
self.assert_raises_os_error(error, self.os.rename, dir_path, self.base_path)
def test_rename_dir_with_trailing_sep_posix(self):
# regression test for #406
self.check_posix_only()
self.check_rename_dir_with_trailing_sep(errno.ENOTEMPTY)
def test_rename_dir_with_trailing_sep_windows(self):
self.check_windows_only()
self.check_rename_dir_with_trailing_sep(errno.EEXIST)
def test_rename_dir(self):
"""Test a rename of a directory."""
directory = self.make_path("xyzzy")
before_dir = self.os.path.join(directory, "before")
before_file = self.os.path.join(directory, "before", "file")
after_dir = self.os.path.join(directory, "after")
after_file = self.os.path.join(directory, "after", "file")
self.create_dir(before_dir)
self.create_file(before_file, contents="payload")
self.assertTrue(self.os.path.exists(before_dir))
self.assertTrue(self.os.path.exists(before_file))
self.assertFalse(self.os.path.exists(after_dir))
self.assertFalse(self.os.path.exists(after_file))
self.os.rename(before_dir, after_dir)
self.assertFalse(self.os.path.exists(before_dir))
self.assertFalse(self.os.path.exists(before_file))
self.assertTrue(self.os.path.exists(after_dir))
self.assertTrue(self.os.path.exists(after_file))
self.check_contents(after_file, "payload")
def test_rename_preserves_stat(self):
"""Test if rename preserves mtime."""
self.check_posix_only()
self.skip_real_fs()
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path)
old_file = self.filesystem.get_object(old_file_path)
old_file.st_mtime = old_file.st_mtime - 3600
self.os.chown(old_file_path, 200, 200)
self.os.chmod(old_file_path, 0o222)
self.create_file(new_file_path)
new_file = self.filesystem.get_object(new_file_path)
self.assertNotEqual(new_file.st_mtime, old_file.st_mtime)
self.os.rename(old_file_path, new_file_path)
new_file = self.filesystem.get_object(new_file_path, check_read_perm=False)
self.assertEqual(new_file.st_mtime, old_file.st_mtime)
self.assertEqual(new_file.st_mode, old_file.st_mode)
self.assertEqual(new_file.st_uid, old_file.st_uid)
self.assertEqual(new_file.st_gid, old_file.st_gid)
def test_rename_same_filenames(self):
"""Test renaming when old and new names are the same."""
directory = self.make_path("xyzzy")
file_contents = "Spam eggs"
file_path = self.os.path.join(directory, "eggs")
self.create_file(file_path, contents=file_contents)
self.os.rename(file_path, file_path)
self.check_contents(file_path, file_contents)
def test_rmdir(self):
"""Can remove a directory."""
directory = self.make_path("xyzzy")
sub_dir = self.make_path("xyzzy", "abccd")
other_dir = self.make_path("xyzzy", "cdeed")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.os.rmdir(directory)
self.assertFalse(self.os.path.exists(directory))
self.create_dir(sub_dir)
self.create_dir(other_dir)
self.os.chdir(sub_dir)
self.os.rmdir("../cdeed")
self.assertFalse(self.os.path.exists(other_dir))
self.os.chdir("..")
self.os.rmdir("abccd")
self.assertFalse(self.os.path.exists(sub_dir))
def test_rmdir_raises_if_not_empty(self):
"""Raises an exception if the target directory is not empty."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.ENOTEMPTY, self.os.rmdir, directory)
def check_rmdir_raises_if_not_directory(self, error_nr):
"""Raises an exception if the target is not a directory."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.ENOTDIR, self.os.rmdir, file_path)
self.assert_raises_os_error(error_nr, self.os.rmdir, ".")
def test_rmdir_raises_if_not_directory_posix(self):
self.check_posix_only()
self.check_rmdir_raises_if_not_directory(errno.EINVAL)
def test_rmdir_raises_if_not_directory_windows(self):
self.check_windows_only()
self.check_rmdir_raises_if_not_directory(errno.EACCES)
def test_rmdir_raises_if_not_exist(self):
"""Raises an exception if the target does not exist."""
directory = self.make_path("xyzzy")
self.assertFalse(self.os.path.exists(directory))
self.assert_raises_os_error(errno.ENOENT, self.os.rmdir, directory)
def test_rmdir_via_symlink(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo", "bar")
dir_path = self.os.path.join(base_path, "alpha")
self.create_dir(dir_path)
link_path = self.os.path.join(base_path, "beta")
self.os.symlink(base_path, link_path)
self.os.rmdir(link_path + "/alpha")
self.assertFalse(self.os.path.exists(dir_path))
def remove_dirs_check(self, directory):
self.assertTrue(self.os.path.exists(directory))
self.os.removedirs(directory)
return not self.os.path.exists(directory)
def test_removedirs(self):
# no exception raised
self.skip_real_fs()
data = [
"test1",
("test1", "test2"),
("test1", "extra"),
("test1", "test2", "test3"),
]
for directory in data:
self.create_dir(self.make_path(directory))
self.assertTrue(self.os.path.exists(self.make_path(directory)))
self.assert_raises_os_error(
errno.ENOTEMPTY, self.remove_dirs_check, self.make_path(data[0])
)
self.assert_raises_os_error(
errno.ENOTEMPTY, self.remove_dirs_check, self.make_path(data[1])
)
self.assertTrue(self.remove_dirs_check(self.make_path(data[3])))
self.assertTrue(self.os.path.exists(self.make_path(data[0])))
self.assertFalse(self.os.path.exists(self.make_path(data[1])))
self.assertTrue(self.os.path.exists(self.make_path(data[2])))
# Should raise because '/test1/extra' is all that is left, and
# removedirs('/test1/extra') will eventually try to rmdir('/').
self.assert_raises_os_error(
errno.EBUSY, self.remove_dirs_check, self.make_path(data[2])
)
# However, it will still delete '/test1') in the process.
self.assertFalse(self.os.path.exists(self.make_path(data[0])))
self.create_dir(self.make_path("test1", "test2"))
# Add this to the root directory to avoid raising an exception.
self.filesystem.create_dir(self.make_path("test3"))
self.assertTrue(self.remove_dirs_check(self.make_path("test1", "test2")))
self.assertFalse(self.os.path.exists(self.make_path("test1", "test2")))
self.assertFalse(self.os.path.exists(self.make_path("test1")))
def test_removedirs_raises_if_removing_root(self):
"""Raises exception if asked to remove '/'."""
self.skip_real_fs()
self.os.rmdir(self.base_path)
directory = self.os.path.splitdrive(self.base_path)[0] + self.os.path.sep
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EBUSY, self.os.removedirs, directory)
def test_removedirs_raises_if_cascade_removing_root(self):
"""Raises exception if asked to remove '/' as part of a
larger operation.
All of other directories should still be removed, though.
"""
self.skip_real_fs()
directory = self.make_path("foo", "bar")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EBUSY, self.os.removedirs, directory)
head, unused_tail = self.os.path.split(directory)
while self.os.path.splitdrive(head)[1] != self.os.path.sep:
self.assertFalse(self.os.path.exists(directory))
head, unused_tail = self.os.path.split(head)
def test_removedirs_with_trailing_slash(self):
"""removedirs works on directory names with trailing slashes."""
# separate this case from the removing-root-directory case
self.create_dir(self.make_path("baz"))
directory = self.make_path("foo", "bar")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.os.removedirs(directory)
self.assertFalse(self.os.path.exists(directory))
def test_remove_dirs_with_top_symlink_fails(self):
self.check_posix_only()
dir_path = self.make_path("dir")
dir_link = self.make_path("dir_link")
self.create_dir(dir_path)
self.os.symlink(dir_path, dir_link)
self.assert_raises_os_error(errno.ENOTDIR, self.os.removedirs, dir_link)
def test_remove_dirs_with_non_top_symlink_succeeds(self):
self.check_posix_only()
dir_path = self.make_path("dir")
dir_link = self.make_path("dir_link")
self.create_dir(dir_path)
self.os.symlink(dir_path, dir_link)
dir_in_dir = self.os.path.join(dir_link, "dir2")
self.create_dir(dir_in_dir)
self.os.removedirs(dir_in_dir)
self.assertFalse(self.os.path.exists(dir_in_dir))
# ensure that the symlink is not removed
self.assertTrue(self.os.path.exists(dir_link))
def test_mkdir(self):
"""mkdir can create a relative directory."""
self.skip_real_fs()
directory = "xyzzy"
self.assertFalse(self.filesystem.exists(directory))
self.os.mkdir(directory)
self.assertTrue(self.filesystem.exists("/%s" % directory))
self.os.chdir(directory)
self.os.mkdir(directory)
self.assertTrue(self.filesystem.exists("/%s/%s" % (directory, directory)))
self.os.chdir(directory)
self.os.mkdir("../abccb")
self.assertTrue(self.os.path.exists("/%s/abccb" % directory))
def test_mkdir_with_trailing_slash(self):
"""mkdir can create a directory named with a trailing slash."""
directory = self.make_path("foo")
self.assertFalse(self.os.path.exists(directory))
self.os.mkdir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assertTrue(self.os.path.exists(self.make_path("foo")))
def test_mkdir_raises_if_empty_directory_name(self):
"""mkdir raises exeption if creating directory named ''."""
directory = ""
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
def test_mkdir_raises_if_no_parent(self):
"""mkdir raises exception if parent directory does not exist."""
parent = "xyzzy"
directory = "%s/foo" % (parent,)
self.assertFalse(self.os.path.exists(parent))
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
def test_mkdir_raises_on_symlink_in_posix(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "link_to_dir")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path, link_path)
self.assert_raises_os_error(errno.ENOTDIR, self.os.rmdir, link_path)
def test_mkdir_removes_symlink_in_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "link_to_dir")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path, link_path)
self.os.rmdir(link_path)
self.assertFalse(self.os.path.exists(link_path))
self.assertTrue(self.os.path.exists(dir_path))
def test_mkdir_raises_if_directory_exists(self):
"""mkdir raises exception if directory already exists."""
directory = self.make_path("xyzzy")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory)
def test_mkdir_raises_if_file_exists(self):
"""mkdir raises exception if name already exists as a file."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, file_path)
def check_mkdir_raises_if_parent_is_file(self, error_type):
"""mkdir raises exception if name already exists as a file."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assert_raises_os_error(
error_type, self.os.mkdir, self.os.path.join(file_path, "ff")
)
def test_mkdir_raises_if_parent_is_file_posix(self):
self.check_posix_only()
self.check_mkdir_raises_if_parent_is_file(errno.ENOTDIR)
def test_mkdir_raises_if_parent_is_file_windows(self):
self.check_windows_only()
self.check_mkdir_raises_if_parent_is_file(errno.ENOENT)
def test_mkdir_raises_with_slash_dot_posix(self):
"""mkdir raises exception if mkdir foo/. (trailing /.)."""
self.check_posix_only()
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, self.os.sep + ".")
directory = self.make_path("xyzzy", ".")
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
self.create_dir(self.make_path("xyzzy"))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory)
def test_mkdir_raises_with_slash_dot_windows(self):
"""mkdir raises exception if mkdir foo/. (trailing /.)."""
self.check_windows_only()
self.assert_raises_os_error(errno.EACCES, self.os.mkdir, self.os.sep + ".")
directory = self.make_path("xyzzy", ".")
self.os.mkdir(directory)
self.create_dir(self.make_path("xyzzy"))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory)
def test_mkdir_raises_with_double_dots_posix(self):
"""mkdir raises exception if mkdir foo/foo2/../foo3."""
self.check_posix_only()
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, self.os.sep + "..")
directory = self.make_path("xyzzy", "dir1", "dir2", "..", "..", "dir3")
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
self.create_dir(self.make_path("xyzzy"))
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
self.create_dir(self.make_path("xyzzy", "dir1"))
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
self.create_dir(self.make_path("xyzzy", "dir1", "dir2"))
self.os.mkdir(directory)
self.assertTrue(self.os.path.exists(directory))
directory = self.make_path("xyzzy", "dir1", "..")
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory)
def test_mkdir_raises_with_double_dots_windows(self):
"""mkdir raises exception if mkdir foo/foo2/../foo3."""
self.check_windows_only()
self.assert_raises_os_error(errno.EACCES, self.os.mkdir, self.os.sep + "..")
directory = self.make_path("xyzzy", "dir1", "dir2", "..", "..", "dir3")
self.assert_raises_os_error(errno.ENOENT, self.os.mkdir, directory)
self.create_dir(self.make_path("xyzzy"))
self.os.mkdir(directory)
self.assertTrue(self.os.path.exists(directory))
directory = self.make_path("xyzzy", "dir1", "..")
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory)
def test_mkdir_raises_if_parent_is_read_only(self):
"""mkdir raises exception if parent is read only."""
self.check_posix_only()
directory = self.make_path("a")
self.os.mkdir(directory)
# Change directory permissions to be read only.
self.os.chmod(directory, 0o400)
directory = self.make_path("a", "b")
if not is_root():
self.assert_raises_os_error(errno.EACCES, self.os.mkdir, directory)
else:
self.os.mkdir(directory)
self.assertTrue(self.os.path.exists(directory))
def test_mkdir_with_with_symlink_parent(self):
self.check_posix_only()
dir_path = self.make_path("foo", "bar")
self.create_dir(dir_path)
link_path = self.make_path("foo", "link")
self.os.symlink(dir_path, link_path)
new_dir = self.os.path.join(link_path, "new_dir")
self.os.mkdir(new_dir)
self.assertTrue(self.os.path.exists(new_dir))
def test_makedirs(self):
"""makedirs can create a directory even if parent does not exist."""
parent = self.make_path("xyzzy")
directory = self.os.path.join(parent, "foo")
self.assertFalse(self.os.path.exists(parent))
self.os.makedirs(directory)
self.assertTrue(self.os.path.exists(directory))
def check_makedirs_raises_if_parent_is_file(self, error_type):
"""makedirs raises exception if a parent component exists as a file."""
file_path = self.make_path("xyzzy")
directory = self.os.path.join(file_path, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(error_type, self.os.makedirs, directory)
def test_makedirs_raises_if_parent_is_file_posix(self):
self.check_posix_only()
self.check_makedirs_raises_if_parent_is_file(errno.ENOTDIR)
def test_makedirs_raises_if_parent_is_file_windows(self):
self.check_windows_only()
self.check_makedirs_raises_if_parent_is_file(errno.ENOENT)
def test_makedirs_raises_if_parent_is_broken_link(self):
self.check_posix_only()
link_path = self.make_path("broken_link")
self.os.symlink(self.make_path("bogus"), link_path)
self.assert_raises_os_error(
errno.ENOENT,
self.os.makedirs,
self.os.path.join(link_path, "newdir"),
)
def test_makedirs_raises_if_parent_is_looping_link(self):
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
link_target = self.os.path.join(link_path, "link")
self.os.symlink(link_target, link_path)
self.assert_raises_os_error(errno.EEXIST, self.os.makedirs, link_path)
def test_makedirs_if_parent_is_symlink(self):
self.check_posix_only()
base_dir = self.make_path("foo", "bar")
self.create_dir(base_dir)
link_dir = self.os.path.join(base_dir, "linked")
self.os.symlink(base_dir, link_dir)
new_dir = self.os.path.join(link_dir, "f")
self.os.makedirs(name=new_dir)
self.assertTrue(self.os.path.exists(new_dir))
def test_makedirs_raises_if_access_denied(self):
"""makedirs raises exception if access denied."""
self.check_posix_only()
directory = self.make_path("a")
self.os.mkdir(directory)
# Change directory permissions to be read only.
self.os.chmod(directory, 0o400)
directory = self.make_path("a", "b")
if not is_root():
with self.assertRaises(OSError):
self.os.makedirs(directory)
else:
self.os.makedirs(directory)
self.assertTrue(self.os.path.exists(directory))
def test_makedirs_exist_ok(self):
"""makedirs uses the exist_ok argument"""
directory = self.make_path("xyzzy", "foo")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EEXIST, self.os.makedirs, directory)
self.os.makedirs(directory, exist_ok=True)
self.assertTrue(self.os.path.exists(directory))
def test_makedirs_in_write_protected_dir(self):
self.check_posix_only()
directory = self.make_path("foo")
self.os.mkdir(directory, mode=0o555)
subdir = self.os.path.join(directory, "bar")
if not is_root():
self.assert_raises_os_error(
errno.EACCES, self.os.makedirs, subdir, exist_ok=True
)
self.assert_raises_os_error(
errno.EACCES, self.os.makedirs, subdir, exist_ok=False
)
else:
self.os.makedirs(subdir)
self.assertTrue(self.os.path.exists(subdir))
def test_makedirs_raises_on_empty_path(self):
self.assert_raises_os_error(errno.ENOENT, self.os.makedirs, "", exist_ok=False)
self.assert_raises_os_error(errno.ENOENT, self.os.makedirs, "", exist_ok=True)
# test fsync and fdatasync
def test_fsync_raises_on_non_int(self):
with self.assertRaises(TypeError):
self.os.fsync("zero")
def test_fdatasync_raises_on_non_int(self):
self.check_linux_only()
self.assertRaises(TypeError, self.os.fdatasync, "zero")
def test_fsync_raises_on_invalid_fd(self):
self.assert_raises_os_error(errno.EBADF, self.os.fsync, 500)
def test_fdatasync_raises_on_invalid_fd(self):
# No open files yet
self.check_linux_only()
self.assert_raises_os_error(errno.EINVAL, self.os.fdatasync, 0)
self.assert_raises_os_error(errno.EBADF, self.os.fdatasync, 500)
def test_fsync_pass_posix(self):
self.check_posix_only()
test_file_path = self.make_path("test_file")
self.create_file(test_file_path, contents="dummy file contents")
with self.open(test_file_path, "r") as test_file:
test_fd = test_file.fileno()
# Test that this doesn't raise anything
self.os.fsync(test_fd)
# And just for sanity, double-check that this still raises
self.assert_raises_os_error(errno.EBADF, self.os.fsync, test_fd + 500)
def test_fsync_pass_windows(self):
self.check_windows_only()
test_file_path = self.make_path("test_file")
self.create_file(test_file_path, contents="dummy file contents")
with self.open(test_file_path, "r+") as test_file:
test_fd = test_file.fileno()
# Test that this doesn't raise anything
self.os.fsync(test_fd)
# And just for sanity, double-check that this still raises
self.assert_raises_os_error(errno.EBADF, self.os.fsync, test_fd + 500)
with self.open(test_file_path, "r") as test_file:
test_fd = test_file.fileno()
self.assert_raises_os_error(errno.EBADF, self.os.fsync, test_fd)
def test_fdatasync_pass(self):
# setup
self.check_linux_only()
test_file_path = self.make_path("test_file")
self.create_file(test_file_path, contents="dummy file contents")
test_file = self.open(test_file_path, "r")
test_fd = test_file.fileno()
# Test that this doesn't raise anything
self.os.fdatasync(test_fd)
# And just for sanity, double-check that this still raises
self.assert_raises_os_error(errno.EBADF, self.os.fdatasync, test_fd + 500)
def test_access700(self):
# set up
self.check_posix_only()
path = self.make_path("some_file")
self.createTestFile(path)
self.os.chmod(path, 0o700)
self.assert_mode_equal(0o700, self.os.stat(path).st_mode)
# actual tests
self.assertTrue(self.os.access(path, self.os.F_OK))
self.assertTrue(self.os.access(path, self.os.R_OK))
self.assertTrue(self.os.access(path, self.os.W_OK))
self.assertTrue(self.os.access(path, self.os.X_OK))
self.assertTrue(self.os.access(path, self.rwx))
def test_access600(self):
# set up
self.check_posix_only()
path = self.make_path("some_file")
self.createTestFile(path)
self.os.chmod(path, 0o600)
self.assert_mode_equal(0o600, self.os.stat(path).st_mode)
# actual tests
self.assertTrue(self.os.access(path, self.os.F_OK))
self.assertTrue(self.os.access(path, self.os.R_OK))
self.assertTrue(self.os.access(path, self.os.W_OK))
self.assertFalse(self.os.access(path, self.os.X_OK))
self.assertFalse(self.os.access(path, self.rwx))
self.assertTrue(self.os.access(path, self.rw))
def test_access400(self):
# set up
self.check_posix_only()
path = self.make_path("some_file")
self.createTestFile(path)
self.os.chmod(path, 0o400)
self.assert_mode_equal(0o400, self.os.stat(path).st_mode)
# actual tests
self.assertTrue(self.os.access(path, self.os.F_OK))
self.assertTrue(self.os.access(path, self.os.R_OK))
self.assertFalse(self.os.access(path, self.os.X_OK))
self.assertFalse(self.os.access(path, self.rwx))
if is_root():
self.assertTrue(self.os.access(path, self.os.W_OK))
self.assertTrue(self.os.access(path, self.rw))
else:
self.assertFalse(self.os.access(path, self.os.W_OK))
self.assertFalse(self.os.access(path, self.rw))
def test_access_symlink(self):
self.skip_if_symlink_not_supported()
self.skip_real_fs()
path = self.make_path("some_file")
self.createTestFile(path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, path)
self.os.chmod(link_path, 0o400)
# test file
self.assertTrue(self.os.access(link_path, self.os.F_OK))
self.assertTrue(self.os.access(link_path, self.os.R_OK))
if is_root():
self.assertTrue(self.os.access(link_path, self.os.W_OK))
self.assertTrue(self.os.access(link_path, self.rw))
else:
self.assertFalse(self.os.access(link_path, self.os.W_OK))
self.assertFalse(self.os.access(link_path, self.rw))
self.assertFalse(self.os.access(link_path, self.os.X_OK))
self.assertFalse(self.os.access(link_path, self.rwx))
# test link itself
self.assertTrue(self.os.access(link_path, self.os.F_OK, follow_symlinks=False))
self.assertTrue(self.os.access(link_path, self.os.R_OK, follow_symlinks=False))
self.assertTrue(self.os.access(link_path, self.os.W_OK, follow_symlinks=False))
self.assertTrue(self.os.access(link_path, self.os.X_OK, follow_symlinks=False))
self.assertTrue(self.os.access(link_path, self.rwx, follow_symlinks=False))
self.assertTrue(self.os.access(link_path, self.rw, follow_symlinks=False))
def test_access_non_existent_file(self):
# set up
path = self.make_path("non", "existent", "file")
self.assertFalse(self.os.path.exists(path))
# actual tests
self.assertFalse(self.os.access(path, self.os.F_OK))
self.assertFalse(self.os.access(path, self.os.R_OK))
self.assertFalse(self.os.access(path, self.os.W_OK))
self.assertFalse(self.os.access(path, self.os.X_OK))
self.assertFalse(self.os.access(path, self.rwx))
self.assertFalse(self.os.access(path, self.rw))
def test_effective_ids_not_supported_under_windows(self):
self.check_windows_only()
path = self.make_path("foo", "bar")
with self.assertRaises(NotImplementedError):
self.os.access(path, self.os.F_OK, effective_ids=True)
def test_chmod(self):
# set up
self.check_posix_only()
self.skip_real_fs()
path = self.make_path("some_file")
self.createTestFile(path)
# actual tests
self.os.chmod(path, 0o6543)
st = self.os.stat(path)
self.assert_mode_equal(0o6543, st.st_mode)
self.assertTrue(st.st_mode & stat.S_IFREG)
self.assertFalse(st.st_mode & stat.S_IFDIR)
def test_chmod_uses_open_fd_as_path(self):
self.check_posix_only()
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.chmod, 5, 0o6543)
path = self.make_path("some_file")
self.createTestFile(path)
with self.open(path) as f:
self.os.chmod(f.filedes, 0o6543)
st = self.os.stat(path)
self.assert_mode_equal(0o6543, st.st_mode)
def test_chmod_follow_symlink(self):
self.check_posix_only()
path = self.make_path("some_file")
self.createTestFile(path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, path)
self.os.chmod(link_path, 0o6543)
st = self.os.stat(link_path)
self.assert_mode_equal(0o6543, st.st_mode)
st = self.os.stat(link_path, follow_symlinks=False)
# the exact mode depends on OS and Python version
self.assertEqual(stat.S_IMODE(0o700), stat.S_IMODE(st.st_mode) & 0o700)
def test_chmod_no_follow_symlink(self):
self.check_posix_only()
path = self.make_path("some_file")
self.createTestFile(path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, path)
if self.os.chmod not in self.os.supports_follow_symlinks or IS_PYPY:
with self.assertRaises(NotImplementedError):
self.os.chmod(link_path, 0o6543, follow_symlinks=False)
else:
self.os.chmod(link_path, 0o6543, follow_symlinks=False)
st = self.os.stat(link_path)
self.assert_mode_equal(0o666, st.st_mode)
st = self.os.stat(link_path, follow_symlinks=False)
self.assert_mode_equal(0o6543, st.st_mode)
def test_lchmod(self):
"""lchmod shall behave like chmod with follow_symlinks=True."""
self.check_posix_only()
self.skip_real_fs()
path = self.make_path("some_file")
self.createTestFile(path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, path)
self.os.lchmod(link_path, 0o6543)
st = self.os.stat(link_path)
self.assert_mode_equal(0o666, st.st_mode)
st = self.os.lstat(link_path)
self.assert_mode_equal(0o6543, st.st_mode)
def test_chmod_dir(self):
# set up
self.check_posix_only()
self.skip_real_fs()
path = self.make_path("some_dir")
self.createTestDirectory(path)
# actual tests
self.os.chmod(path, 0o1434)
st = self.os.stat(path)
self.assert_mode_equal(0o1434, st.st_mode)
self.assertFalse(st.st_mode & stat.S_IFREG)
self.assertTrue(st.st_mode & stat.S_IFDIR)
def test_chmod_non_existent(self):
# set up
path = self.make_path("non", "existent", "file")
self.assertFalse(self.os.path.exists(path))
# actual tests
try:
# Use try-catch to check exception attributes.
self.os.chmod(path, 0o777)
self.fail("Exception is expected.") # COV_NF_LINE
except OSError as os_error:
self.assertEqual(errno.ENOENT, os_error.errno)
self.assertEqual(path, os_error.filename)
def test_chown_existing_file(self):
# set up
self.skip_real_fs()
file_path = self.make_path("some_file")
self.create_file(file_path)
# first set it make sure it's set
self.os.chown(file_path, 100, 101)
st = self.os.stat(file_path)
self.assertEqual(st[stat.ST_UID], 100)
self.assertEqual(st[stat.ST_GID], 101)
# we can make sure it changed
self.os.chown(file_path, 200, 201)
st = self.os.stat(file_path)
self.assertEqual(st[stat.ST_UID], 200)
self.assertEqual(st[stat.ST_GID], 201)
# setting a value to -1 leaves it unchanged
self.os.chown(file_path, -1, -1)
st = self.os.stat(file_path)
self.assertEqual(st[stat.ST_UID], 200)
self.assertEqual(st[stat.ST_GID], 201)
def test_chown_uses_open_fd_as_path(self):
self.check_posix_only()
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.chown, 5, 100, 101)
file_path = self.make_path("foo", "bar")
self.create_file(file_path)
with self.open(file_path) as f:
self.os.chown(f.filedes, 100, 101)
st = self.os.stat(file_path)
self.assertEqual(st[stat.ST_UID], 100)
def test_chown_follow_symlink(self):
self.skip_real_fs()
file_path = self.make_path("some_file")
self.create_file(file_path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, file_path)
self.os.chown(link_path, 100, 101)
st = self.os.stat(link_path)
self.assertEqual(st[stat.ST_UID], 100)
self.assertEqual(st[stat.ST_GID], 101)
st = self.os.stat(link_path, follow_symlinks=False)
self.assertNotEqual(st[stat.ST_UID], 100)
self.assertNotEqual(st[stat.ST_GID], 101)
def test_chown_no_follow_symlink(self):
self.skip_real_fs()
file_path = self.make_path("some_file")
self.create_file(file_path)
link_path = self.make_path("link_to_some_file")
self.create_symlink(link_path, file_path)
self.os.chown(link_path, 100, 101, follow_symlinks=False)
st = self.os.stat(link_path)
self.assertNotEqual(st[stat.ST_UID], 100)
self.assertNotEqual(st[stat.ST_GID], 101)
st = self.os.stat(link_path, follow_symlinks=False)
self.assertEqual(st[stat.ST_UID], 100)
self.assertEqual(st[stat.ST_GID], 101)
def test_chown_bad_arguments(self):
"""os.chown() with bad args (Issue #30)"""
self.check_posix_only()
file_path = self.make_path("some_file")
self.create_file(file_path)
self.assertRaises(TypeError, self.os.chown, file_path, "username", -1)
self.assertRaises(TypeError, self.os.chown, file_path, -1, "groupname")
def test_chown_nonexisting_file_should_raise_os_error(self):
self.check_posix_only()
file_path = self.make_path("some_file")
self.assertFalse(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.ENOENT, self.os.chown, file_path, 100, 100)
def test_classify_directory_contents(self):
"""Directory classification should work correctly."""
root_directory = self.make_path("foo")
test_directories = ["bar1", "baz2"]
test_files = ["baz1", "bar2", "baz3"]
self.create_dir(root_directory)
for directory in test_directories:
directory = self.os.path.join(root_directory, directory)
self.create_dir(directory)
for test_file in test_files:
test_file = self.os.path.join(root_directory, test_file)
self.create_file(test_file)
test_directories.sort()
test_files.sort()
generator = self.os.walk(root_directory)
root, dirs, files = next(generator)
dirs.sort()
files.sort()
self.assertEqual(root_directory, root)
self.assertEqual(test_directories, dirs)
self.assertEqual(test_files, files)
# os.mknod does not work under MacOS due to permission issues
# so we test it under Linux only
def test_mk_nod_can_create_a_file(self):
self.check_linux_only()
filename = self.make_path("foo")
self.assertFalse(self.os.path.exists(filename))
self.os.mknod(filename)
self.assertTrue(self.os.path.exists(filename))
self.assertEqual(stat.S_IFREG | 0o600, self.os.stat(filename).st_mode)
def test_mk_nod_raises_if_empty_file_name(self):
self.check_linux_only()
filename = ""
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mk_nod_raises_if_parent_dir_doesnt_exist(self):
self.check_linux_only()
parent = self.make_path("xyzzy")
filename = self.os.path.join(parent, "foo")
self.assertFalse(self.os.path.exists(parent))
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mk_nod_raises_if_file_exists(self):
self.check_linux_only()
filename = self.make_path("tmp", "foo")
self.create_file(filename)
self.assertTrue(self.os.path.exists(filename))
self.assert_raises_os_error(errno.EEXIST, self.os.mknod, filename)
def test_mk_nod_raises_if_filename_is_dot(self):
self.check_linux_only()
filename = self.make_path("tmp", ".")
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mk_nod_raises_if_filename_is_double_dot(self):
self.check_linux_only()
filename = self.make_path("tmp", "..")
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mknod_empty_tail_for_existing_file_raises(self):
self.check_linux_only()
filename = self.make_path("foo")
self.create_file(filename)
self.assertTrue(self.os.path.exists(filename))
self.assert_raises_os_error(errno.EEXIST, self.os.mknod, filename)
def test_mknod_empty_tail_for_nonexistent_file_raises(self):
self.check_linux_only()
filename = self.make_path("tmp", "foo")
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mknod_raises_if_filename_is_empty_string(self):
self.check_linux_only()
filename = ""
self.assert_raises_os_error(errno.ENOENT, self.os.mknod, filename)
def test_mknod_raises_if_unsupported_options(self):
self.check_posix_only()
# behavior seems to have changed in ubuntu-20.04, version 20210606.1
# skipping real fs tests for now
self.skip_real_fs()
filename = "abcde"
if not is_root():
self.assert_raises_os_error(
errno.EPERM, self.os.mknod, filename, stat.S_IFCHR
)
else:
self.os.mknod(filename, stat.S_IFCHR)
self.os.remove(filename)
def test_mknod_raises_if_parent_is_not_a_directory(self):
self.check_linux_only()
filename1 = self.make_path("foo")
self.create_file(filename1)
self.assertTrue(self.os.path.exists(filename1))
filename2 = self.make_path("foo", "bar")
self.assert_raises_os_error(errno.ENOTDIR, self.os.mknod, filename2)
def test_symlink(self):
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo", "bar", "baz")
self.create_dir(self.make_path("foo", "bar"))
self.os.symlink("bogus", file_path)
self.assertTrue(self.os.path.lexists(file_path))
self.assertFalse(self.os.path.exists(file_path))
self.create_file(self.make_path("foo", "bar", "bogus"))
self.assertTrue(self.os.path.lexists(file_path))
self.assertTrue(self.os.path.exists(file_path))
def test_symlink_on_nonexisting_path_raises(self):
self.check_posix_only()
dir_path = self.make_path("bar")
link_path = self.os.path.join(dir_path, "bar")
self.assert_raises_os_error(errno.ENOENT, self.os.symlink, link_path, link_path)
self.assert_raises_os_error(errno.ENOENT, self.os.symlink, dir_path, link_path)
def test_symlink_with_path_ending_with_sep_in_posix(self):
self.check_posix_only()
dir_path = self.make_path("dir")
self.create_dir(dir_path)
self.assert_raises_os_error(
errno.EEXIST,
self.os.symlink,
self.base_path,
dir_path + self.os.sep,
)
dir_path = self.make_path("bar")
self.assert_raises_os_error(
errno.ENOENT,
self.os.symlink,
self.base_path,
dir_path + self.os.sep,
)
def test_symlink_with_path_ending_with_sep_in_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
dir_path = self.make_path("dir")
self.create_dir(dir_path)
self.assert_raises_os_error(
errno.EEXIST,
self.os.symlink,
self.base_path,
dir_path + self.os.sep,
)
dir_path = self.make_path("bar")
# does not raise under Windows
self.os.symlink(self.base_path, dir_path + self.os.sep)
def test_broken_symlink_with_trailing_sep_posix(self):
# Regression test for #390
self.check_linux_only()
path0 = self.make_path("foo") + self.os.sep
self.assert_raises_os_error(errno.ENOENT, self.os.symlink, path0, path0)
def test_broken_symlink_with_trailing_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path0 = self.make_path("foo") + self.os.sep
self.assert_raises_os_error(errno.EINVAL, self.os.symlink, path0, path0)
def test_rename_symlink_with_trailing_sep_linux(self):
# Regression test for #391
self.check_linux_only()
path = self.make_path("foo")
self.os.symlink(self.base_path, path)
self.assert_raises_os_error(
errno.ENOTDIR, self.os.rename, path + self.os.sep, self.base_path
)
def test_rename_symlink_with_trailing_sep_macos(self):
# Regression test for #391
self.check_macos_only()
path = self.make_path("foo")
self.os.symlink(self.base_path, path)
self.os.rename(path + self.os.sep, self.base_path)
def test_rename_symlink_with_trailing_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path = self.make_path("foo")
self.os.symlink(self.base_path, path)
self.assert_raises_os_error(
errno.EEXIST, self.os.rename, path + self.os.sep, self.base_path
)
def test_rename_symlink_to_other_case(self):
# Regression test for #389
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo")
self.os.symlink(self.base_path, link_path)
link_to_link_path = self.make_path("BAR")
self.os.symlink(link_path, link_to_link_path)
new_link_to_link_path = self.os.path.join(link_path, "bar")
self.os.rename(link_to_link_path, new_link_to_link_path)
self.assertEqual(["bar", "foo"], sorted(self.os.listdir(new_link_to_link_path)))
def create_broken_link_path_with_trailing_sep(self):
# Regression tests for #396
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
target_path = self.make_path("target")
self.os.symlink(target_path, link_path)
link_path += self.os.sep
return link_path
def test_lstat_broken_link_with_trailing_sep_linux(self):
self.check_linux_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.ENOENT, self.os.lstat, link_path)
def test_lstat_broken_link_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.ENOENT, self.os.lstat, link_path)
def test_lstat_broken_link_with_trailing_sep_windows(self):
self.check_windows_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.EINVAL, self.os.lstat, link_path)
def test_mkdir_broken_link_with_trailing_sep_linux_windows(self):
self.check_linux_and_windows()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, link_path)
self.assert_raises_os_error(errno.EEXIST, self.os.makedirs, link_path)
def test_mkdir_broken_link_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.os.mkdir(link_path) # no error
def test_makedirs_broken_link_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.os.makedirs(link_path) # no error
def test_remove_broken_link_with_trailing_sep_linux(self):
self.check_linux_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.ENOTDIR, self.os.remove, link_path)
def test_remove_broken_link_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.ENOENT, self.os.remove, link_path)
def test_remove_broken_link_with_trailing_sep_windows(self):
self.check_windows_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.EINVAL, self.os.remove, link_path)
def test_rename_broken_link_with_trailing_sep_linux(self):
self.check_linux_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(
errno.ENOTDIR, self.os.rename, link_path, self.make_path("target")
)
def test_rename_broken_link_with_trailing_sep_macos(self):
self.check_macos_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(
errno.ENOENT, self.os.rename, link_path, self.make_path("target")
)
def test_rename_broken_link_with_trailing_sep_windows(self):
self.check_windows_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(
errno.EINVAL, self.os.rename, link_path, self.make_path("target")
)
def test_readlink_broken_link_with_trailing_sep_posix(self):
self.check_posix_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.ENOENT, self.os.readlink, link_path)
def test_readlink_broken_link_with_trailing_sep_windows(self):
self.check_windows_only()
link_path = self.create_broken_link_path_with_trailing_sep()
self.assert_raises_os_error(errno.EINVAL, self.os.readlink, link_path)
def test_islink_broken_link_with_trailing_sep(self):
link_path = self.create_broken_link_path_with_trailing_sep()
self.assertFalse(self.os.path.islink(link_path))
def test_lexists_broken_link_with_trailing_sep(self):
link_path = self.create_broken_link_path_with_trailing_sep()
self.assertFalse(self.os.path.lexists(link_path))
def test_rename_link_with_trailing_sep_to_self_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path = self.make_path("foo")
self.os.symlink(self.base_path, path)
self.os.rename(path + self.os.sep, path) # no error
def test_rename_link_with_trailing_sep_to_self_posix(self):
# Regression test for #395
self.check_posix_only()
path = self.make_path("foo")
self.os.symlink(self.base_path, path)
self.assert_raises_os_error(
errno.ENOTDIR, self.os.rename, path + self.os.sep, path
)
def check_open_broken_symlink_to_path_with_trailing_sep(self, error):
# Regression tests for #397
self.skip_if_symlink_not_supported()
target_path = self.make_path("target") + self.os.sep
link_path = self.make_path("link")
self.os.symlink(target_path, link_path)
self.assert_raises_os_error(error, self.open, link_path, "a")
self.assert_raises_os_error(error, self.open, link_path, "w")
def test_open_broken_symlink_to_path_with_trailing_sep_linux(self):
self.check_linux_only()
self.check_open_broken_symlink_to_path_with_trailing_sep(errno.EISDIR)
def test_open_broken_symlink_to_path_with_trailing_sep_macos(self):
self.check_macos_only()
self.check_open_broken_symlink_to_path_with_trailing_sep(errno.ENOENT)
def test_open_broken_symlink_to_path_with_trailing_sep_windows(self):
self.check_windows_only()
self.check_open_broken_symlink_to_path_with_trailing_sep(errno.EINVAL)
def check_link_path_ending_with_sep(self, error):
# Regression tests for #399
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo")
link_path = self.make_path("link")
with self.open(file_path, "w"):
self.assert_raises_os_error(
error, self.os.link, file_path + self.os.sep, link_path
)
def test_link_path_ending_with_sep_posix(self):
self.check_posix_only()
self.check_link_path_ending_with_sep(errno.ENOTDIR)
def test_link_path_ending_with_sep_windows(self):
self.check_windows_only()
self.check_link_path_ending_with_sep(errno.EINVAL)
def test_link_to_path_ending_with_sep_posix(self):
# regression test for #407
self.check_posix_only()
path0 = self.make_path("foo") + self.os.sep
path1 = self.make_path("bar")
with self.open(path1, "w"):
self.assert_raises_os_error(errno.ENOENT, self.os.link, path1, path0)
def test_link_to_path_ending_with_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path0 = self.make_path("foo") + self.os.sep
path1 = self.make_path("bar")
with self.open(path1, "w"):
self.os.link(path1, path0)
self.assertTrue(self.os.path.exists(path1))
def check_rename_to_path_ending_with_sep(self, error):
# Regression tests for #400
file_path = self.make_path("foo")
with self.open(file_path, "w"):
self.assert_raises_os_error(
error, self.os.rename, file_path + self.os.sep, file_path
)
def test_rename_to_path_ending_with_sep_posix(self):
self.check_posix_only()
self.check_rename_to_path_ending_with_sep(errno.ENOTDIR)
def test_rename_to_path_ending_with_sep_windows(self):
self.check_windows_only()
self.check_rename_to_path_ending_with_sep(errno.EINVAL)
def test_rmdir_link_with_trailing_sep_linux(self):
self.check_linux_only()
dir_path = self.make_path("foo")
self.os.mkdir(dir_path)
link_path = self.make_path("link")
self.os.symlink(dir_path, link_path)
self.assert_raises_os_error(
errno.ENOTDIR, self.os.rmdir, link_path + self.os.sep
)
def test_rmdir_link_with_trailing_sep_macos(self):
# Regression test for #398
self.check_macos_only()
dir_path = self.make_path("foo")
self.os.mkdir(dir_path)
link_path = self.make_path("link")
self.os.symlink(dir_path, link_path)
self.os.rmdir(link_path + self.os.sep)
self.assertFalse(self.os.path.exists(link_path))
def test_rmdir_link_with_trailing_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
dir_path = self.make_path("foo")
self.os.mkdir(dir_path)
link_path = self.make_path("link")
self.os.symlink(dir_path, link_path)
self.os.rmdir(link_path + self.os.sep)
self.assertFalse(self.os.path.exists(link_path))
def test_readlink_circular_link_with_trailing_sep_linux(self):
self.check_linux_only()
path1 = self.make_path("foo")
path0 = self.make_path("bar")
self.os.symlink(path0, path1)
self.os.symlink(path1, path0)
self.assert_raises_os_error(errno.ELOOP, self.os.readlink, path0 + self.os.sep)
def test_readlink_circular_link_with_trailing_sep_macos(self):
# Regression test for #392
self.check_macos_only()
path1 = self.make_path("foo")
path0 = self.make_path("bar")
self.os.symlink(path0, path1)
self.os.symlink(path1, path0)
self.assertEqual(path0, self.os.readlink(path0 + self.os.sep))
def test_readlink_circular_link_with_trailing_sep_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path1 = self.make_path("foo")
path0 = self.make_path("bar")
self.os.symlink(path0, path1)
self.os.symlink(path1, path0)
self.assert_raises_os_error(errno.EINVAL, self.os.readlink, path0 + self.os.sep)
# hard link related tests
def test_link_bogus(self):
# trying to create a link from a non-existent file should fail
self.skip_if_symlink_not_supported()
self.assert_raises_os_error(
errno.ENOENT, self.os.link, "/nonexistent_source", "/link_dest"
)
def test_link_delete(self):
self.skip_if_symlink_not_supported()
file1_path = self.make_path("test_file1")
file2_path = self.make_path("test_file2")
contents1 = "abcdef"
# Create file
self.create_file(file1_path, contents=contents1)
# link to second file
self.os.link(file1_path, file2_path)
# delete first file
self.os.unlink(file1_path)
# assert that second file exists, and its contents are the same
self.assertTrue(self.os.path.exists(file2_path))
with self.open(file2_path) as f:
self.assertEqual(f.read(), contents1)
def test_link_update(self):
self.skip_if_symlink_not_supported()
file1_path = self.make_path("test_file1")
file2_path = self.make_path("test_file2")
contents1 = "abcdef"
contents2 = "ghijkl"
# Create file and link
self.create_file(file1_path, contents=contents1)
self.os.link(file1_path, file2_path)
# assert that the second file contains contents1
with self.open(file2_path) as f:
self.assertEqual(f.read(), contents1)
# update the first file
with self.open(file1_path, "w") as f:
f.write(contents2)
# assert that second file contains contents2
with self.open(file2_path) as f:
self.assertEqual(f.read(), contents2)
def test_link_non_existent_parent(self):
self.skip_if_symlink_not_supported()
file1_path = self.make_path("test_file1")
breaking_link_path = self.make_path("nonexistent", "test_file2")
contents1 = "abcdef"
# Create file and link
self.create_file(file1_path, contents=contents1)
# trying to create a link under a non-existent directory should fail
self.assert_raises_os_error(
errno.ENOENT, self.os.link, file1_path, breaking_link_path
)
def test_link_is_existing_file(self):
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo", "bar")
self.create_file(file_path)
self.assert_raises_os_error(errno.EEXIST, self.os.link, file_path, file_path)
def test_link_target_is_dir_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
dir_path = self.make_path("foo", "bar")
link_path = self.os.path.join(dir_path, "link")
self.create_dir(dir_path)
self.assert_raises_os_error(errno.EACCES, self.os.link, dir_path, link_path)
def test_link_target_is_dir_posix(self):
self.check_posix_only()
dir_path = self.make_path("foo", "bar")
link_path = self.os.path.join(dir_path, "link")
self.create_dir(dir_path)
self.assert_raises_os_error(errno.EPERM, self.os.link, dir_path, link_path)
def test_link_count1(self):
"""Test that hard link counts are updated correctly."""
self.skip_if_symlink_not_supported()
file1_path = self.make_path("test_file1")
file2_path = self.make_path("test_file2")
file3_path = self.make_path("test_file3")
self.create_file(file1_path)
# initial link count should be one
self.assertEqual(self.os.stat(file1_path).st_nlink, 1)
self.os.link(file1_path, file2_path)
# the count should be incremented for each hard link created
self.assertEqual(self.os.stat(file1_path).st_nlink, 2)
self.assertEqual(self.os.stat(file2_path).st_nlink, 2)
# Check that the counts are all updated together
self.os.link(file2_path, file3_path)
self.assertEqual(self.os.stat(file1_path).st_nlink, 3)
self.assertEqual(self.os.stat(file2_path).st_nlink, 3)
self.assertEqual(self.os.stat(file3_path).st_nlink, 3)
# Counts should be decremented when links are removed
self.os.unlink(file3_path)
self.assertEqual(self.os.stat(file1_path).st_nlink, 2)
self.assertEqual(self.os.stat(file2_path).st_nlink, 2)
# check that it gets decremented correctly again
self.os.unlink(file1_path)
self.assertEqual(self.os.stat(file2_path).st_nlink, 1)
def test_nlink_for_directories(self):
self.skip_real_fs()
self.create_dir(self.make_path("foo", "bar"))
self.create_file(self.make_path("foo", "baz"))
self.assertEqual(
2,
self.filesystem.get_object(self.make_path("foo", "bar")).st_nlink,
)
self.assertEqual(4, self.filesystem.get_object(self.make_path("foo")).st_nlink)
self.create_file(self.make_path("foo", "baz2"))
self.assertEqual(5, self.filesystem.get_object(self.make_path("foo")).st_nlink)
def test_umask(self):
self.check_posix_only()
umask = os.umask(0o22)
os.umask(umask)
self.assertEqual(umask, self.os.umask(0o22))
def test_mkdir_umask_applied(self):
"""mkdir creates a directory with umask applied."""
self.check_posix_only()
self.os.umask(0o22)
dir1 = self.make_path("dir1")
self.os.mkdir(dir1)
self.assert_mode_equal(0o755, self.os.stat(dir1).st_mode)
self.os.umask(0o67)
dir2 = self.make_path("dir2")
self.os.mkdir(dir2)
self.assert_mode_equal(0o710, self.os.stat(dir2).st_mode)
def test_makedirs_umask_applied(self):
"""makedirs creates a directories with umask applied."""
self.check_posix_only()
self.os.umask(0o22)
self.os.makedirs(self.make_path("p1", "dir1"))
self.assert_mode_equal(0o755, self.os.stat(self.make_path("p1")).st_mode)
self.assert_mode_equal(
0o755, self.os.stat(self.make_path("p1", "dir1")).st_mode
)
self.os.umask(0o67)
self.os.makedirs(self.make_path("p2", "dir2"))
self.assert_mode_equal(0o710, self.os.stat(self.make_path("p2")).st_mode)
self.assert_mode_equal(
0o710, self.os.stat(self.make_path("p2", "dir2")).st_mode
)
def test_mknod_umask_applied(self):
"""mkdir creates a device with umask applied."""
# skipping MacOs due to mknod permission issues
self.check_linux_only()
self.os.umask(0o22)
node1 = self.make_path("nod1")
self.os.mknod(node1, stat.S_IFREG | 0o666)
self.assert_mode_equal(0o644, self.os.stat(node1).st_mode)
self.os.umask(0o27)
node2 = self.make_path("nod2")
self.os.mknod(node2, stat.S_IFREG | 0o666)
self.assert_mode_equal(0o640, self.os.stat(node2).st_mode)
def test_open_umask_applied(self):
"""open creates a file with umask applied."""
self.check_posix_only()
self.os.umask(0o22)
file1 = self.make_path("file1")
self.open(file1, "w").close()
self.assert_mode_equal(0o644, self.os.stat(file1).st_mode)
self.os.umask(0o27)
file2 = self.make_path("file2")
self.open(file2, "w").close()
self.assert_mode_equal(0o640, self.os.stat(file2).st_mode)
def test_open_pipe(self):
read_fd, write_fd = self.os.pipe()
self.os.close(read_fd)
self.os.close(write_fd)
def test_open_pipe_with_existing_fd(self):
file1 = self.make_path("file1")
fd = self.os.open(file1, os.O_CREAT)
read_fd, write_fd = self.os.pipe()
self.assertGreater(read_fd, fd)
self.os.close(fd)
self.os.close(read_fd)
self.os.close(write_fd)
def test_open_file_with_existing_pipe(self):
read_fd, write_fd = self.os.pipe()
file1 = self.make_path("file1")
fd = self.os.open(file1, os.O_CREAT)
self.assertGreater(fd, write_fd)
self.os.close(read_fd)
self.os.close(write_fd)
self.os.close(fd)
def test_read_write_pipe(self):
read_fd, write_fd = self.os.pipe()
self.assertEqual(4, self.os.write(write_fd, b"test"))
self.assertEqual(b"test", self.os.read(read_fd, 4))
self.os.close(read_fd)
self.os.close(write_fd)
def test_open_existing_pipe(self):
# create some regular files to ensure that real and fake fd
# are out of sync (see #581)
fds = []
for i in range(5):
path = self.make_path("file" + str(i))
fds.append(self.os.open(path, os.O_CREAT))
file_path = self.make_path("file.txt")
self.create_file(file_path)
with self.open(file_path):
read_fd, write_fd = self.os.pipe()
with self.open(write_fd, "wb") as f:
self.assertEqual(4, f.write(b"test"))
with self.open(read_fd, "rb") as f:
self.assertEqual(b"test", f.read())
for fd in fds:
self.os.close(fd)
def test_write_to_pipe(self):
read_fd, write_fd = self.os.pipe()
self.os.write(write_fd, b"test")
self.assertEqual(b"test", self.os.read(read_fd, 4))
self.os.close(read_fd)
self.os.close(write_fd)
@unittest.skipIf(
sys.platform not in ("win32", "darwin", "linux"),
"Pipe implementation may differ on other platforms",
)
def test_write_to_read_fd(self):
read_fd, write_fd = self.os.pipe()
self.assert_raises_os_error(errno.EBADF, self.os.write, read_fd, b"test")
self.os.close(read_fd)
self.os.close(write_fd)
def test_truncate(self):
file_path = self.make_path("foo", "bar")
self.create_file(file_path, contents="012345678901234567")
self.os.truncate(file_path, 10)
with self.open(file_path) as f:
self.assertEqual("0123456789", f.read())
def test_truncate_non_existing(self):
self.assert_raises_os_error(errno.ENOENT, self.os.truncate, "foo", 10)
def test_truncate_to_larger(self):
file_path = self.make_path("foo", "bar")
self.create_file(file_path, contents="0123456789")
fd = self.os.open(file_path, os.O_RDWR)
self.os.truncate(fd, 20)
self.assertEqual(20, self.os.stat(file_path).st_size)
with self.open(file_path) as f:
self.assertEqual("0123456789" + "\0" * 10, f.read())
def test_truncate_with_fd(self):
if os.truncate not in os.supports_fd:
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.ftruncate, 50, 10)
file_path = self.make_path("some_file")
self.create_file(file_path, contents="01234567890123456789")
fd = self.os.open(file_path, os.O_RDWR)
self.os.truncate(fd, 10)
self.assertEqual(10, self.os.stat(file_path).st_size)
with self.open(file_path) as f:
self.assertEqual("0123456789", f.read())
def test_ftruncate(self):
if self.is_pypy:
# not correctly supported
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.ftruncate, 50, 10)
file_path = self.make_path("some_file")
self.create_file(file_path, contents="0123456789012345")
fd = self.os.open(file_path, os.O_RDWR)
self.os.truncate(fd, 10)
self.assertEqual(10, self.os.stat(file_path).st_size)
with self.open(file_path) as f:
self.assertEqual("0123456789", f.read())
def test_capabilities(self):
"""Make sure that the fake capabilities are the same as the real ones."""
self.assertEqual(
self.os.stat in self.os.supports_follow_symlinks,
os.stat in os.supports_follow_symlinks,
)
self.assertEqual(self.os.stat in self.os.supports_fd, os.stat in os.supports_fd)
self.assertEqual(
self.os.stat in self.os.supports_dir_fd, os.stat in os.supports_dir_fd
)
self.assertEqual(
self.os.stat in self.os.supports_effective_ids,
os.stat in os.supports_effective_ids,
)
class RealOsModuleTest(FakeOsModuleTest):
def use_real_fs(self):
return True
class FakeOsModuleTestCaseInsensitiveFS(FakeOsModuleTestBase):
def setUp(self):
super(FakeOsModuleTestCaseInsensitiveFS, self).setUp()
self.check_case_insensitive_fs()
self.rwx = self.os.R_OK | self.os.W_OK | self.os.X_OK
self.rw = self.os.R_OK | self.os.W_OK
def test_chdir_fails_non_directory(self):
"""chdir should raise OSError if the target is not a directory."""
filename = self.make_path("foo", "bar")
self.create_file(filename)
filename1 = self.make_path("Foo", "Bar")
self.assert_raises_os_error(errno.ENOTDIR, self.os.chdir, filename1)
def test_listdir_returns_list(self):
directory_root = self.make_path("xyzzy")
self.os.mkdir(directory_root)
directory = self.os.path.join(directory_root, "bug")
self.os.mkdir(directory)
directory_upper = self.make_path("XYZZY", "BUG")
self.create_file(self.make_path(directory, "foo"))
self.assertEqual(["foo"], self.os.listdir(directory_upper))
def test_listdir_on_symlink(self):
self.skip_if_symlink_not_supported()
directory = self.make_path("xyzzy")
files = ["foo", "bar", "baz"]
for f in files:
self.create_file(self.make_path(directory, f))
self.create_symlink(self.make_path("symlink"), self.make_path("xyzzy"))
files.sort()
self.assertEqual(files, sorted(self.os.listdir(self.make_path("SymLink"))))
def test_fdopen_mode(self):
self.skip_real_fs()
file_path1 = self.make_path("some_file1")
file_path2 = self.make_path("Some_File1")
file_path3 = self.make_path("SOME_file1")
self.create_file(file_path1, contents="contents here1")
self.os.chmod(file_path2, (stat.S_IFREG | 0o666) ^ stat.S_IWRITE)
fake_file1 = self.open(file_path3, "r")
fileno1 = fake_file1.fileno()
self.os.fdopen(fileno1)
self.os.fdopen(fileno1, "r")
if not is_root():
self.assertRaises(OSError, self.os.fdopen, fileno1, "w")
else:
self.os.fdopen(fileno1, "w")
def test_stat(self):
directory = self.make_path("xyzzy")
directory1 = self.make_path("XYZZY")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path, contents="ABCDE")
self.assertTrue(stat.S_IFDIR & self.os.stat(directory1)[stat.ST_MODE])
file_path1 = self.os.path.join(directory1, "Plugh")
self.assertTrue(stat.S_IFREG & self.os.stat(file_path1)[stat.ST_MODE])
self.assertTrue(stat.S_IFREG & self.os.stat(file_path1).st_mode)
self.assertEqual(5, self.os.stat(file_path1)[stat.ST_SIZE])
def test_stat_no_follow_symlinks_posix(self):
"""Test that stat with follow_symlinks=False behaves like lstat."""
self.check_posix_only()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(
len(file_contents),
self.os.stat(file_path.upper(), follow_symlinks=False)[stat.ST_SIZE],
)
self.assertEqual(
len(base_name),
self.os.stat(link_path.upper(), follow_symlinks=False)[stat.ST_SIZE],
)
def test_lstat_posix(self):
self.check_posix_only()
directory = self.make_path("xyzzy")
base_name = "plugh"
file_contents = "frobozz"
# Just make sure we didn't accidentally make our test data meaningless.
self.assertNotEqual(len(base_name), len(file_contents))
file_path = self.os.path.join(directory, base_name)
link_path = self.os.path.join(directory, "link")
self.create_file(file_path, contents=file_contents)
self.create_symlink(link_path, base_name)
self.assertEqual(
len(file_contents), self.os.lstat(file_path.upper())[stat.ST_SIZE]
)
self.assertEqual(len(base_name), self.os.lstat(link_path.upper())[stat.ST_SIZE])
def test_readlink(self):
self.skip_if_symlink_not_supported()
link_path = self.make_path("foo", "bar", "baz")
target = self.make_path("tarJAY")
self.create_symlink(link_path, target)
self.assert_equal_paths(self.os.readlink(link_path.upper()), target)
def check_readlink_raises_if_path_not_a_link(self):
file_path = self.make_path("foo", "bar", "eleventyone")
self.create_file(file_path)
self.assert_raises_os_error(errno.EINVAL, self.os.readlink, file_path.upper())
def test_readlink_raises_if_path_not_a_link_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_readlink_raises_if_path_not_a_link()
def test_readlink_raises_if_path_not_a_link_posix(self):
self.check_posix_only()
self.check_readlink_raises_if_path_not_a_link()
def check_readlink_raises_if_path_has_file(self, error_subtype):
self.create_file(self.make_path("a_file"))
file_path = self.make_path("a_file", "foo")
self.assert_raises_os_error(error_subtype, self.os.readlink, file_path.upper())
file_path = self.make_path("a_file", "foo", "bar")
self.assert_raises_os_error(error_subtype, self.os.readlink, file_path.upper())
def test_readlink_raises_if_path_has_file_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_readlink_raises_if_path_has_file(errno.ENOENT)
def test_readlink_raises_if_path_has_file_posix(self):
self.check_posix_only()
self.check_readlink_raises_if_path_has_file(errno.ENOTDIR)
def test_readlink_with_links_in_path(self):
self.skip_if_symlink_not_supported()
self.create_symlink(
self.make_path("meyer", "lemon", "pie"), self.make_path("yum")
)
self.create_symlink(self.make_path("geo", "metro"), self.make_path("Meyer"))
self.assert_equal_paths(
self.make_path("yum"),
self.os.readlink(self.make_path("Geo", "Metro", "Lemon", "Pie")),
)
def test_readlink_with_chained_links_in_path(self):
self.skip_if_symlink_not_supported()
self.create_symlink(
self.make_path("eastern", "european", "wolfhounds", "chase"),
self.make_path("cats"),
)
self.create_symlink(
self.make_path("russian"), self.make_path("Eastern", "European")
)
self.create_symlink(
self.make_path("dogs"), self.make_path("Russian", "Wolfhounds")
)
self.assert_equal_paths(
self.make_path("cats"),
self.os.readlink(self.make_path("DOGS", "Chase")),
)
def check_remove_dir(self, dir_error):
directory = self.make_path("xyzzy")
dir_path = self.os.path.join(directory, "plugh")
self.create_dir(dir_path)
dir_path = dir_path.upper()
self.assertTrue(self.os.path.exists(dir_path.upper()))
self.assert_raises_os_error(dir_error, self.os.remove, dir_path)
self.assertTrue(self.os.path.exists(dir_path))
self.os.chdir(directory)
self.assert_raises_os_error(dir_error, self.os.remove, dir_path)
self.assertTrue(self.os.path.exists(dir_path))
self.assert_raises_os_error(errno.ENOENT, self.os.remove, "/Plugh")
def test_remove_dir_mac_os(self):
self.check_macos_only()
self.check_remove_dir(errno.EPERM)
def test_remove_dir_windows(self):
self.check_windows_only()
self.check_remove_dir(errno.EACCES)
def test_remove_file(self):
directory = self.make_path("zzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path.upper()))
self.os.remove(file_path.upper())
self.assertFalse(self.os.path.exists(file_path))
def test_remove_file_no_directory(self):
directory = self.make_path("zzy")
file_name = "plugh"
file_path = self.os.path.join(directory, file_name)
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.os.chdir(directory.upper())
self.os.remove(file_name.upper())
self.assertFalse(self.os.path.exists(file_path))
def test_remove_open_file_fails_under_windows(self):
self.check_windows_only()
path = self.make_path("foo", "bar")
self.create_file(path)
with self.open(path, "r"):
self.assert_raises_os_error(errno.EACCES, self.os.remove, path.upper())
self.assertTrue(self.os.path.exists(path))
def test_remove_open_file_possible_under_posix(self):
self.check_posix_only()
path = self.make_path("foo", "bar")
self.create_file(path)
self.open(path, "r")
self.os.remove(path.upper())
self.assertFalse(self.os.path.exists(path))
def test_remove_file_relative_path(self):
self.skip_real_fs()
original_dir = self.os.getcwd()
directory = self.make_path("zzy")
subdirectory = self.os.path.join(directory, "zzy")
file_name = "plugh"
file_path = self.os.path.join(directory, file_name)
file_path_relative = self.os.path.join("..", file_name)
self.create_file(file_path.upper())
self.assertTrue(self.os.path.exists(file_path))
self.create_dir(subdirectory)
self.assertTrue(self.os.path.exists(subdirectory))
self.os.chdir(subdirectory.upper())
self.os.remove(file_path_relative.upper())
self.assertFalse(self.os.path.exists(file_path_relative))
self.os.chdir(original_dir.upper())
self.assertFalse(self.os.path.exists(file_path))
def check_remove_dir_raises_error(self, dir_error):
directory = self.make_path("zzy")
self.create_dir(directory)
self.assert_raises_os_error(dir_error, self.os.remove, directory.upper())
def test_remove_dir_raises_error_mac_os(self):
self.check_macos_only()
self.check_remove_dir_raises_error(errno.EPERM)
def test_remove_dir_raises_error_windows(self):
self.check_windows_only()
self.check_remove_dir_raises_error(errno.EACCES)
def test_remove_symlink_to_dir(self):
self.skip_if_symlink_not_supported()
directory = self.make_path("zzy")
link = self.make_path("link_to_dir")
self.create_dir(directory)
self.os.symlink(directory, link)
self.assertTrue(self.os.path.exists(directory))
self.assertTrue(self.os.path.exists(link))
self.os.remove(link.upper())
self.assertTrue(self.os.path.exists(directory))
self.assertFalse(self.os.path.exists(link))
def test_rename_dir_to_symlink_posix(self):
self.check_posix_only()
link_path = self.make_path("link")
dir_path = self.make_path("dir")
link_target = self.os.path.join(dir_path, "link_target")
self.create_dir(dir_path)
self.os.symlink(link_target.upper(), link_path.upper())
self.assert_raises_os_error(errno.ENOTDIR, self.os.rename, dir_path, link_path)
def test_rename_dir_to_symlink_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
dir_path = self.make_path("dir")
link_target = self.os.path.join(dir_path, "link_target")
self.create_dir(dir_path)
self.os.symlink(link_target.upper(), link_path.upper())
self.assert_raises_os_error(errno.EEXIST, self.os.rename, dir_path, link_path)
def test_rename_dir_to_existing_dir(self):
# Regression test for #317
self.check_posix_only()
dest_dir_path = self.make_path("Dest")
# seems to behave differently under different MacOS versions
self.skip_real_fs()
new_dest_dir_path = self.make_path("dest")
self.os.mkdir(dest_dir_path)
source_dir_path = self.make_path("src")
self.os.mkdir(source_dir_path)
self.os.rename(source_dir_path, new_dest_dir_path)
self.assertEqual(["dest"], self.os.listdir(self.base_path))
def test_rename_file_to_symlink(self):
self.check_posix_only()
link_path = self.make_path("file_link")
file_path = self.make_path("file")
self.os.symlink(file_path, link_path)
self.create_file(file_path)
self.os.rename(file_path.upper(), link_path)
self.assertFalse(self.os.path.exists(file_path))
self.assertTrue(self.os.path.exists(link_path.upper()))
self.assertTrue(self.os.path.isfile(link_path.upper()))
def test_rename_symlink_to_symlink(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
self.create_dir(base_path)
link_path1 = self.os.path.join(base_path, "link1")
link_path2 = self.os.path.join(base_path, "link2")
self.os.symlink(base_path.upper(), link_path1)
self.os.symlink(base_path, link_path2)
self.os.rename(link_path1.upper(), link_path2.upper())
self.assertFalse(self.os.path.exists(link_path1))
self.assertTrue(self.os.path.exists(link_path2))
def test_rename_symlink_to_symlink_for_parent_raises(self):
self.check_posix_only()
dir_link = self.make_path("dir_link")
dir_path = self.make_path("dir")
dir_in_dir_path = self.os.path.join(dir_link, "inner_dir")
self.create_dir(dir_path)
self.os.symlink(dir_path.upper(), dir_link)
self.create_dir(dir_in_dir_path)
self.assert_raises_os_error(
errno.EINVAL, self.os.rename, dir_path, dir_in_dir_path.upper()
)
def test_rename_directory_to_linked_dir(self):
# Regression test for #314
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
self.os.symlink(self.base_path, link_path)
link_subdir = self.os.path.join(link_path, "dir")
dir_path = self.make_path("Dir")
self.os.mkdir(dir_path)
self.os.rename(dir_path, link_subdir)
self.assertEqual(["dir", "link"], sorted(self.os.listdir(self.base_path)))
def test_recursive_rename_raises(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
self.create_dir(base_path)
new_path = self.os.path.join(base_path, "new_dir")
self.assert_raises_os_error(
errno.EINVAL, self.os.rename, base_path.upper(), new_path
)
def test_rename_with_target_parent_file_raises_posix(self):
self.check_posix_only()
file_path = self.make_path("foo", "baz")
self.create_file(file_path)
self.assert_raises_os_error(
errno.ENOTDIR,
self.os.rename,
file_path,
file_path.upper() + "/new",
)
def test_rename_with_target_parent_file_raises_windows(self):
self.check_windows_only()
file_path = self.make_path("foo", "baz")
self.create_file(file_path)
self.assert_raises_os_error(
errno.EACCES,
self.os.rename,
file_path,
self.os.path.join(file_path.upper(), "new"),
)
def test_rename_looping_symlink(self):
# Regression test for #315
self.skip_if_symlink_not_supported()
path_lower = self.make_path("baz")
path_upper = self.make_path("BAZ")
self.os.symlink(path_lower, path_upper)
self.os.rename(path_upper, path_lower)
self.assertEqual(["baz"], self.os.listdir(self.base_path))
def test_rename_symlink_to_source(self):
self.check_posix_only()
base_path = self.make_path("foo")
link_path = self.os.path.join(base_path, "slink")
file_path = self.os.path.join(base_path, "file")
self.create_file(file_path)
self.os.symlink(file_path, link_path)
self.os.rename(link_path.upper(), file_path.upper())
self.assertFalse(self.os.path.exists(file_path))
def test_rename_symlink_to_dir_raises(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "dir_link")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path, link_path.upper())
self.assert_raises_os_error(
errno.EISDIR, self.os.rename, link_path, dir_path.upper()
)
def test_rename_broken_symlink(self):
self.check_posix_only()
base_path = self.make_path("foo")
self.create_dir(base_path)
link_path = self.os.path.join(base_path, "slink")
file_path = self.os.path.join(base_path, "file")
self.os.symlink(file_path.upper(), link_path)
self.os.rename(link_path.upper(), file_path)
self.assertFalse(self.os.path.exists(file_path))
self.assertTrue(self.os.path.lexists(file_path))
self.assertFalse(self.os.path.exists(link_path))
def test_change_case_in_case_insensitive_file_system(self):
"""Can use `rename()` to change filename case in a case-insensitive
file system."""
old_file_path = self.make_path("fileName")
new_file_path = self.make_path("FileNAME")
self.create_file(old_file_path, contents="test contents")
self.assertEqual(["fileName"], self.os.listdir(self.base_path))
self.os.rename(old_file_path, new_file_path)
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.assertEqual(["FileNAME"], self.os.listdir(self.base_path))
def test_rename_symlink_with_changed_case(self):
# Regression test for #313
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
self.os.symlink(self.base_path, link_path)
link_path = self.os.path.join(link_path, "link")
link_path_upper = self.make_path("link", "LINK")
self.os.rename(link_path_upper, link_path)
def test_rename_directory(self):
"""Can rename a directory to an unused name."""
for old_path, new_path in [("wxyyw", "xyzzy"), ("abccb", "cdeed")]:
old_path = self.make_path(old_path)
new_path = self.make_path(new_path)
self.create_file(self.os.path.join(old_path, "plugh"), contents="test")
self.assertTrue(self.os.path.exists(old_path))
self.assertFalse(self.os.path.exists(new_path))
self.os.rename(old_path.upper(), new_path.upper())
self.assertFalse(self.os.path.exists(old_path))
self.assertTrue(self.os.path.exists(new_path))
self.check_contents(self.os.path.join(new_path, "plugh"), "test")
if not self.use_real_fs():
self.assertEqual(3, self.filesystem.get_object(new_path).st_nlink)
def check_rename_directory_to_existing_file_raises(self, error_nr):
dir_path = self.make_path("dir")
file_path = self.make_path("file")
self.create_dir(dir_path)
self.create_file(file_path)
self.assert_raises_os_error(
error_nr, self.os.rename, dir_path, file_path.upper()
)
def test_rename_directory_to_existing_file_raises_posix(self):
self.check_posix_only()
self.check_rename_directory_to_existing_file_raises(errno.ENOTDIR)
def test_rename_directory_to_existing_file_raises_windows(self):
self.check_windows_only()
self.check_rename_directory_to_existing_file_raises(errno.EEXIST)
def test_rename_to_existing_directory_should_raise_under_windows(self):
"""Renaming to an existing directory raises OSError under Windows."""
self.check_windows_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("foo", "baz")
self.create_dir(old_path)
self.create_dir(new_path)
self.assert_raises_os_error(
errno.EEXIST, self.os.rename, old_path.upper(), new_path.upper()
)
def test_rename_to_a_hardlink_of_same_file_should_do_nothing(self):
self.skip_real_fs_failure(skip_posix=False)
self.skip_if_symlink_not_supported()
file_path = self.make_path("dir", "file")
self.create_file(file_path)
link_path = self.make_path("link")
self.os.link(file_path.upper(), link_path)
self.os.rename(file_path, link_path.upper())
self.assertTrue(self.os.path.exists(file_path))
self.assertTrue(self.os.path.exists(link_path))
def test_rename_with_incorrect_source_case(self):
# Regression test for #308
base_path = self.make_path("foo")
path0 = self.os.path.join(base_path, "bar")
path1 = self.os.path.join(base_path, "Bar")
self.create_dir(path0)
self.os.rename(path1, path0)
self.assertTrue(self.os.path.exists(path0))
def test_rename_symlink_to_other_case_does_nothing_in_mac_os(self):
# Regression test for #318
self.check_macos_only()
path0 = self.make_path("beta")
self.os.symlink(self.base_path, path0)
path0 = self.make_path("beta", "Beta")
path1 = self.make_path("Beta")
self.os.rename(path0, path1)
self.assertEqual(["beta"], sorted(self.os.listdir(path0)))
def test_rename_symlink_to_other_case_works_in_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
path0 = self.make_path("beta")
self.os.symlink(self.base_path, path0)
path0 = self.make_path("beta", "Beta")
path1 = self.make_path("Beta")
self.os.rename(path0, path1)
self.assertEqual(["Beta"], sorted(self.os.listdir(path0)))
def test_renames_creates_missing_dirs(self):
old_path = self.make_path("foo.txt")
self.create_file(old_path)
new_path = self.make_path("new", "dir", "bar.txt")
self.os.renames(old_path, new_path)
self.assertTrue(self.os.path.exists(new_path))
self.assertFalse(self.os.path.exists(old_path))
def test_renames_removes_empty_dirs(self):
old_base_path = self.make_path("old")
old_path = self.make_path("old", "dir1", "dir2", "foo.txt")
other_file = self.os.path.join(old_base_path, "foo.png")
self.create_file(old_path)
self.create_file(other_file)
new_path = self.make_path("new", "bar.txt")
self.os.renames(old_path, new_path)
self.assertTrue(self.os.path.exists(new_path))
self.assertFalse(self.os.path.exists(old_path))
self.assertTrue(self.os.path.exists(old_base_path))
removed_path = self.os.path.join(old_base_path, "dir1")
self.assertFalse(self.os.path.exists(removed_path))
def test_stat_with_mixed_case(self):
# Regression test for #310
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo")
path = self.os.path.join(base_path, "bar")
self.create_dir(path)
path = self.os.path.join(path, "Bar")
self.os.symlink(base_path, path)
path = self.os.path.join(path, "Bar")
# used to raise
self.os.stat(path)
def test_hardlink_works_with_symlink(self):
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo")
self.create_dir(base_path)
symlink_path = self.os.path.join(base_path, "slink")
self.os.symlink(base_path.upper(), symlink_path)
file_path = self.os.path.join(base_path, "slink", "beta")
self.create_file(file_path)
link_path = self.os.path.join(base_path, "Slink", "gamma")
self.os.link(file_path, link_path)
self.assertTrue(self.os.path.exists(link_path))
def test_replace_existing_directory_should_raise_under_windows(self):
"""Renaming to an existing directory raises OSError under Windows."""
self.check_windows_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("foo", "baz")
self.create_dir(old_path)
self.create_dir(new_path)
self.assert_raises_os_error(
errno.EACCES, self.os.replace, old_path, new_path.upper()
)
def test_rename_to_existing_directory_under_posix(self):
"""Renaming to an existing directory changes the existing directory
under Posix."""
self.check_posix_only()
old_path = self.make_path("foo", "bar")
new_path = self.make_path("xyzzy")
self.create_dir(self.os.path.join(old_path, "sub"))
self.create_dir(new_path)
self.os.rename(old_path.upper(), new_path.upper())
self.assertTrue(self.os.path.exists(self.os.path.join(new_path, "sub")))
self.assertFalse(self.os.path.exists(old_path))
def test_rename_file_to_existing_directory_raises_under_posix(self):
self.check_posix_only()
file_path = self.make_path("foo", "bar", "baz")
new_path = self.make_path("xyzzy")
self.create_file(file_path)
self.create_dir(new_path)
self.assert_raises_os_error(
errno.EISDIR, self.os.rename, file_path.upper(), new_path.upper()
)
def test_rename_to_existent_file_posix(self):
"""Can rename a file to a used name under Unix."""
self.check_posix_only()
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.os.rename(old_file_path.upper(), new_file_path.upper())
self.assertFalse(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.check_contents(new_file_path, "test contents 1")
def test_rename_to_existent_file_windows(self):
"""Renaming a file to a used name raises OSError under Windows."""
self.check_windows_only()
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.assert_raises_os_error(
errno.EEXIST,
self.os.rename,
old_file_path.upper(),
new_file_path.upper(),
)
def test_replace_to_existent_file(self):
"""Replaces an existing file (does not work with `rename()` under
Windows)."""
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "plugh_new")
self.create_file(old_file_path, contents="test contents 1")
self.create_file(new_file_path, contents="test contents 2")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.os.replace(old_file_path.upper(), new_file_path.upper())
self.assertFalse(self.os.path.exists(old_file_path))
self.assertTrue(self.os.path.exists(new_file_path))
self.check_contents(new_file_path, "test contents 1")
def test_rename_to_nonexistent_dir(self):
"""Can rename a file to a name in a nonexistent dir."""
directory = self.make_path("xyzzy")
old_file_path = self.os.path.join(directory, "plugh_old")
new_file_path = self.os.path.join(directory, "no_such_path", "plugh_new")
self.create_file(old_file_path, contents="test contents")
self.assertTrue(self.os.path.exists(old_file_path))
self.assertFalse(self.os.path.exists(new_file_path))
self.assert_raises_os_error(
errno.ENOENT,
self.os.rename,
old_file_path.upper(),
new_file_path.upper(),
)
self.assertTrue(self.os.path.exists(old_file_path))
self.assertFalse(self.os.path.exists(new_file_path))
self.check_contents(old_file_path, "test contents")
def check_rename_case_only_with_symlink_parent(self):
# Regression test for #319
self.os.symlink(self.base_path, self.make_path("link"))
dir_upper = self.make_path("link", "Alpha")
self.os.mkdir(dir_upper)
dir_lower = self.make_path("alpha")
self.os.rename(dir_upper, dir_lower)
self.assertEqual(["alpha", "link"], sorted(self.os.listdir(self.base_path)))
def test_rename_case_only_with_symlink_parent_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
self.check_rename_case_only_with_symlink_parent()
def test_rename_case_only_with_symlink_parent_macos(self):
self.check_macos_only()
self.check_rename_case_only_with_symlink_parent()
def test_rename_dir(self):
"""Test a rename of a directory."""
directory = self.make_path("xyzzy")
before_dir = self.os.path.join(directory, "before")
before_file = self.os.path.join(directory, "before", "file")
after_dir = self.os.path.join(directory, "after")
after_file = self.os.path.join(directory, "after", "file")
self.create_dir(before_dir)
self.create_file(before_file, contents="payload")
self.assertTrue(self.os.path.exists(before_dir.upper()))
self.assertTrue(self.os.path.exists(before_file.upper()))
self.assertFalse(self.os.path.exists(after_dir.upper()))
self.assertFalse(self.os.path.exists(after_file.upper()))
self.os.rename(before_dir.upper(), after_dir)
self.assertFalse(self.os.path.exists(before_dir.upper()))
self.assertFalse(self.os.path.exists(before_file.upper()))
self.assertTrue(self.os.path.exists(after_dir.upper()))
self.assertTrue(self.os.path.exists(after_file.upper()))
self.check_contents(after_file, "payload")
def test_rename_same_filenames(self):
"""Test renaming when old and new names are the same."""
directory = self.make_path("xyzzy")
file_contents = "Spam eggs"
file_path = self.os.path.join(directory, "eggs")
self.create_file(file_path, contents=file_contents)
self.os.rename(file_path, file_path.upper())
self.check_contents(file_path, file_contents)
def test_rmdir(self):
"""Can remove a directory."""
directory = self.make_path("xyzzy")
sub_dir = self.make_path("xyzzy", "abccd")
other_dir = self.make_path("xyzzy", "cdeed")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.os.rmdir(directory)
self.assertFalse(self.os.path.exists(directory))
self.create_dir(sub_dir)
self.create_dir(other_dir)
self.os.chdir(sub_dir)
self.os.rmdir("../CDEED")
self.assertFalse(self.os.path.exists(other_dir))
self.os.chdir("..")
self.os.rmdir("AbcCd")
self.assertFalse(self.os.path.exists(sub_dir))
def test_rmdir_via_symlink(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo", "bar")
dir_path = self.os.path.join(base_path, "alpha")
self.create_dir(dir_path)
link_path = self.os.path.join(base_path, "beta")
self.os.symlink(base_path, link_path)
self.os.rmdir(link_path + "/Alpha")
self.assertFalse(self.os.path.exists(dir_path))
def test_remove_dirs_with_non_top_symlink_succeeds(self):
self.check_posix_only()
dir_path = self.make_path("dir")
dir_link = self.make_path("dir_link")
self.create_dir(dir_path)
self.os.symlink(dir_path, dir_link)
dir_in_dir = self.os.path.join(dir_link, "dir2")
self.create_dir(dir_in_dir)
self.os.removedirs(dir_in_dir.upper())
self.assertFalse(self.os.path.exists(dir_in_dir))
# ensure that the symlink is not removed
self.assertTrue(self.os.path.exists(dir_link))
def test_mkdir_raises_on_symlink_in_posix(self):
self.check_posix_only()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "link_to_dir")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path.upper(), link_path.upper())
self.assert_raises_os_error(errno.ENOTDIR, self.os.rmdir, link_path)
def test_mkdir_removes_symlink_in_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
base_path = self.make_path("foo", "bar")
link_path = self.os.path.join(base_path, "link_to_dir")
dir_path = self.os.path.join(base_path, "dir")
self.create_dir(dir_path)
self.os.symlink(dir_path.upper(), link_path.upper())
self.os.rmdir(link_path)
self.assertFalse(self.os.path.exists(link_path))
self.assertTrue(self.os.path.exists(dir_path))
def test_mkdir_raises_if_directory_exists(self):
"""mkdir raises exception if directory already exists."""
directory = self.make_path("xyzzy")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, directory.upper())
def test_mkdir_raises_if_file_exists(self):
"""mkdir raises exception if name already exists as a file."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, file_path.upper())
def test_mkdir_raises_if_symlink_exists(self):
# Regression test for #309
self.skip_if_symlink_not_supported()
path1 = self.make_path("baz")
self.os.symlink(path1, path1)
path2 = self.make_path("Baz")
self.assert_raises_os_error(errno.EEXIST, self.os.mkdir, path2)
def check_mkdir_raises_if_parent_is_file(self, error_type):
"""mkdir raises exception if name already exists as a file."""
directory = self.make_path("xyzzy")
file_path = self.os.path.join(directory, "plugh")
self.create_file(file_path)
self.assert_raises_os_error(
error_type,
self.os.mkdir,
self.os.path.join(file_path.upper(), "ff"),
)
def test_mkdir_raises_if_parent_is_file_posix(self):
self.check_posix_only()
self.check_mkdir_raises_if_parent_is_file(errno.ENOTDIR)
def test_mkdir_raises_if_parent_is_file_windows(self):
self.check_windows_only()
self.check_mkdir_raises_if_parent_is_file(errno.ENOENT)
def test_makedirs(self):
"""makedirs can create a directory even if parent does not exist."""
parent = self.make_path("xyzzy")
directory = self.os.path.join(parent, "foo")
self.assertFalse(self.os.path.exists(parent))
self.os.makedirs(directory.upper())
self.assertTrue(self.os.path.exists(directory))
def check_makedirs_raises_if_parent_is_file(self, error_type):
"""makedirs raises exception if a parent component exists as a file."""
file_path = self.make_path("xyzzy")
directory = self.os.path.join(file_path, "plugh")
self.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(error_type, self.os.makedirs, directory.upper())
def test_makedirs_raises_if_parent_is_file_posix(self):
self.check_posix_only()
self.check_makedirs_raises_if_parent_is_file(errno.ENOTDIR)
def test_makedirs_raises_if_parent_is_file_windows(self):
self.check_windows_only()
self.check_makedirs_raises_if_parent_is_file(errno.ENOENT)
def test_makedirs_raises_if_parent_is_broken_link(self):
self.check_posix_only()
link_path = self.make_path("broken_link")
self.os.symlink(self.make_path("bogus"), link_path)
self.assert_raises_os_error(
errno.ENOENT,
self.os.makedirs,
self.os.path.join(link_path.upper(), "newdir"),
)
def test_makedirs_exist_ok(self):
"""makedirs uses the exist_ok argument"""
directory = self.make_path("xyzzy", "foo")
self.create_dir(directory)
self.assertTrue(self.os.path.exists(directory))
self.assert_raises_os_error(errno.EEXIST, self.os.makedirs, directory.upper())
self.os.makedirs(directory.upper(), exist_ok=True)
self.assertTrue(self.os.path.exists(directory))
# test fsync and fdatasync
def test_fsync_pass(self):
test_file_path = self.make_path("test_file")
self.create_file(test_file_path, contents="dummy file contents")
test_file = self.open(test_file_path.upper(), "r+")
test_fd = test_file.fileno()
# Test that this doesn't raise anything
self.os.fsync(test_fd)
# And just for sanity, double-check that this still raises
self.assert_raises_os_error(errno.EBADF, self.os.fsync, test_fd + 10)
test_file.close()
def test_chmod(self):
# set up
self.check_posix_only()
self.skip_real_fs()
path = self.make_path("some_file")
self.createTestFile(path)
# actual tests
self.os.chmod(path.upper(), 0o6543)
st = self.os.stat(path)
self.assert_mode_equal(0o6543, st.st_mode)
self.assertTrue(st.st_mode & stat.S_IFREG)
self.assertFalse(st.st_mode & stat.S_IFDIR)
def test_symlink(self):
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo", "bar", "baz")
self.create_dir(self.make_path("foo", "bar"))
self.os.symlink("bogus", file_path.upper())
self.assertTrue(self.os.path.lexists(file_path))
self.assertFalse(self.os.path.exists(file_path))
self.create_file(self.make_path("Foo", "Bar", "Bogus"))
self.assertTrue(self.os.path.lexists(file_path))
self.assertTrue(self.os.path.exists(file_path))
# hard link related tests
def test_link_delete(self):
self.skip_if_symlink_not_supported()
file1_path = self.make_path("test_file1")
file2_path = self.make_path("test_file2")
contents1 = "abcdef"
# Create file
self.create_file(file1_path, contents=contents1)
# link to second file
self.os.link(file1_path.upper(), file2_path)
# delete first file
self.os.unlink(file1_path)
# assert that second file exists, and its contents are the same
self.assertTrue(self.os.path.exists(file2_path))
with self.open(file2_path.upper()) as f:
self.assertEqual(f.read(), contents1)
def test_link_is_existing_file(self):
self.skip_if_symlink_not_supported()
file_path = self.make_path("foo", "bar")
self.create_file(file_path)
self.assert_raises_os_error(
errno.EEXIST, self.os.link, file_path.upper(), file_path.upper()
)
def test_link_is_broken_symlink(self):
# Regression test for #311
self.skip_if_symlink_not_supported()
self.check_case_insensitive_fs()
file_path = self.make_path("baz")
self.create_file(file_path)
path_lower = self.make_path("foo")
self.os.symlink(path_lower, path_lower)
path_upper = self.make_path("Foo")
self.assert_raises_os_error(errno.EEXIST, self.os.link, file_path, path_upper)
def test_link_with_changed_case(self):
# Regression test for #312
self.skip_if_symlink_not_supported()
self.check_case_insensitive_fs()
link_path = self.make_path("link")
self.os.symlink(self.base_path, link_path)
link_path = self.os.path.join(link_path, "Link")
self.assertTrue(self.os.lstat(link_path))
class RealOsModuleTestCaseInsensitiveFS(FakeOsModuleTestCaseInsensitiveFS):
def use_real_fs(self):
return True
class FakeOsModuleTimeTest(FakeOsModuleTestBase):
def test_chmod_st_ctime(self):
with self.mock_time(start=200):
file_path = "some_file"
self.filesystem.create_file(file_path)
self.assertTrue(self.os.path.exists(file_path))
st = self.os.stat(file_path)
self.assertEqual(200, st.st_ctime)
# tests
self.os.chmod(file_path, 0o765)
st = self.os.stat(file_path)
self.assertEqual(220, st.st_ctime)
def test_utime_sets_current_time_if_args_is_none(self):
path = self.make_path("some_file")
self.createTestFile(path)
with self.mock_time(start=200):
self.os.utime(path, times=None)
st = self.os.stat(path)
self.assertEqual(200, st.st_atime)
self.assertEqual(200, st.st_mtime)
def test_utime_sets_specified_time(self):
# set up
path = self.make_path("some_file")
self.createTestFile(path)
self.os.stat(path)
# actual tests
self.os.utime(path, times=(1, 2))
st = self.os.stat(path)
self.assertEqual(1, st.st_atime)
self.assertEqual(2, st.st_mtime)
def test_utime_dir(self):
# set up
path = "/some_dir"
self.createTestDirectory(path)
# actual tests
self.os.utime(path, times=(1.0, 2.0))
st = self.os.stat(path)
self.assertEqual(1.0, st.st_atime)
self.assertEqual(2.0, st.st_mtime)
def test_utime_follow_symlinks(self):
path = self.make_path("some_file")
self.createTestFile(path)
link_path = "/link_to_some_file"
self.filesystem.create_symlink(link_path, path)
self.os.utime(link_path, times=(1, 2))
st = self.os.stat(link_path)
self.assertEqual(1, st.st_atime)
self.assertEqual(2, st.st_mtime)
def test_utime_no_follow_symlinks(self):
path = self.make_path("some_file")
self.createTestFile(path)
link_path = "/link_to_some_file"
self.filesystem.create_symlink(link_path, path)
self.os.utime(link_path, times=(1, 2), follow_symlinks=False)
st = self.os.stat(link_path)
self.assertNotEqual(1, st.st_atime)
self.assertNotEqual(2, st.st_mtime)
st = self.os.stat(link_path, follow_symlinks=False)
self.assertEqual(1, st.st_atime)
self.assertEqual(2, st.st_mtime)
def test_utime_non_existent(self):
path = "/non/existent/file"
self.assertFalse(self.os.path.exists(path))
self.assert_raises_os_error(errno.ENOENT, self.os.utime, path, (1, 2))
def test_utime_invalid_times_arg_raises(self):
path = "/some_dir"
self.createTestDirectory(path)
# the error message differs with different Python versions
# we don't expect the same message here
self.assertRaises(TypeError, self.os.utime, path, (1, 2, 3))
self.assertRaises(TypeError, self.os.utime, path, (1, "str"))
def test_utime_sets_specified_time_in_ns(self):
# set up
path = self.make_path("some_file")
self.createTestFile(path)
self.os.stat(path)
# actual tests
self.os.utime(path, ns=(200000000, 400000000))
st = self.os.stat(path)
self.assertEqual(0.2, st.st_atime)
self.assertEqual(0.4, st.st_mtime)
def test_utime_incorrect_ns_argument_raises(self):
file_path = "some_file"
self.filesystem.create_file(file_path)
self.assertRaises(TypeError, self.os.utime, file_path, ns=200000000)
self.assertRaises(TypeError, self.os.utime, file_path, ns=("a", "b"))
self.assertRaises(
ValueError, self.os.utime, file_path, times=(1, 2), ns=(100, 200)
)
def test_utime_uses_open_fd_as_path(self):
if os.utime not in os.supports_fd:
self.skip_real_fs()
self.assert_raises_os_error(errno.EBADF, self.os.utime, 5, (1, 2))
path = self.make_path("some_file")
self.createTestFile(path)
with FakeFileOpen(self.filesystem)(path) as f:
self.os.utime(f.filedes, times=(1, 2))
st = self.os.stat(path)
self.assertEqual(1, st.st_atime)
self.assertEqual(2, st.st_mtime)
class FakeOsModuleLowLevelFileOpTest(FakeOsModuleTestBase):
"""Test low level functions `os.open()`, `os.read()` and `os.write()`."""
def setUp(self):
os.umask(0o022)
super(FakeOsModuleLowLevelFileOpTest, self).setUp()
def test_open_read_only(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_RDONLY)
self.assertEqual(b"contents", self.os.read(file_des, 8))
self.assert_raises_os_error(errno.EBADF, self.os.write, file_des, b"test")
self.os.close(file_des)
def test_open_read_only_write_zero_bytes_posix(self):
self.check_posix_only()
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_RDONLY)
self.assert_raises_os_error(errno.EBADF, self.os.write, file_des, b"test")
self.os.close(file_des)
def test_open_read_only_write_zero_bytes_windows(self):
# under Windows, writing an empty string to a read only file
# is not an error
self.check_windows_only()
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_RDONLY)
self.assertEqual(0, self.os.write(file_des, b""))
self.os.close(file_des)
def test_open_write_only(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_WRONLY)
self.assertEqual(4, self.os.write(file_des, b"test"))
self.check_contents(file_path, b"testents")
self.os.close(file_des)
def test_open_write_only_raises_on_read(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_WRONLY)
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.os.close(file_des)
file_des = self.os.open(file_path, os.O_WRONLY | os.O_TRUNC)
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.os.close(file_des)
file_path2 = self.make_path("file2")
file_des = self.os.open(file_path2, os.O_CREAT | os.O_WRONLY)
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.os.close(file_des)
file_des = self.os.open(file_path2, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.os.close(file_des)
def test_open_write_only_read_zero_bytes_posix(self):
self.check_posix_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_CREAT | os.O_WRONLY)
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 0)
self.os.close(file_des)
def test_open_write_only_read_zero_bytes_windows(self):
# under Windows, reading 0 bytes from a write only file is not an error
self.check_windows_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_CREAT | os.O_WRONLY)
self.assertEqual(b"", self.os.read(file_des, 0))
self.os.close(file_des)
def test_open_read_write(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_RDWR)
self.assertEqual(4, self.os.write(file_des, b"test"))
self.check_contents(file_path, b"testents")
self.os.close(file_des)
def test_open_create_is_read_only(self):
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_CREAT)
self.assertEqual(b"", self.os.read(file_des, 1))
self.assert_raises_os_error(errno.EBADF, self.os.write, file_des, b"foo")
self.os.close(file_des)
def test_open_create_truncate_is_read_only(self):
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_CREAT | os.O_TRUNC)
self.assertEqual(b"", self.os.read(file_des, 1))
self.assert_raises_os_error(errno.EBADF, self.os.write, file_des, b"foo")
self.os.close(file_des)
def test_open_raises_if_does_not_exist(self):
file_path = self.make_path("file1")
self.assert_raises_os_error(errno.ENOENT, self.os.open, file_path, os.O_RDONLY)
self.assert_raises_os_error(errno.ENOENT, self.os.open, file_path, os.O_WRONLY)
self.assert_raises_os_error(errno.ENOENT, self.os.open, file_path, os.O_RDWR)
def test_exclusive_open_raises_without_create_mode(self):
self.skip_real_fs()
file_path = self.make_path("file1")
self.assertRaises(NotImplementedError, self.os.open, file_path, os.O_EXCL)
self.assertRaises(
NotImplementedError,
self.os.open,
file_path,
os.O_EXCL | os.O_WRONLY,
)
self.assertRaises(
NotImplementedError, self.os.open, file_path, os.O_EXCL | os.O_RDWR
)
self.assertRaises(
NotImplementedError,
self.os.open,
file_path,
os.O_EXCL | os.O_TRUNC | os.O_APPEND,
)
def test_open_raises_if_parent_does_not_exist(self):
path = self.make_path("alpha", "alpha")
self.assert_raises_os_error(
errno.ENOENT,
self.os.open,
path,
os.O_CREAT | os.O_WRONLY | os.O_TRUNC,
)
def test_open_truncate(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_RDWR | os.O_TRUNC)
self.assertEqual(b"", self.os.read(file_des, 8))
self.assertEqual(4, self.os.write(file_des, b"test"))
self.check_contents(file_path, b"test")
self.os.close(file_des)
@unittest.skipIf(not TestCase.is_windows, "O_TEMPORARY only present in Windows")
def test_temp_file(self):
file_path = self.make_path("file1")
fd = self.os.open(file_path, os.O_CREAT | os.O_RDWR | os.O_TEMPORARY)
self.assertTrue(self.os.path.exists(file_path))
self.os.close(fd)
self.assertFalse(self.os.path.exists(file_path))
def test_open_append(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
file_des = self.os.open(file_path, os.O_WRONLY | os.O_APPEND)
self.assertEqual(4, self.os.write(file_des, b"test"))
self.check_contents(file_path, b"contentstest")
self.os.close(file_des)
def test_open_create(self):
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_RDWR | os.O_CREAT)
self.assertTrue(self.os.path.exists(file_path))
self.assertEqual(4, self.os.write(file_des, b"test"))
self.check_contents(file_path, "test")
self.os.close(file_des)
def test_can_read_after_create_exclusive(self):
self.check_posix_only()
path1 = self.make_path("alpha")
file_des = self.os.open(path1, os.O_CREAT | os.O_EXCL)
self.assertEqual(b"", self.os.read(file_des, 0))
self.assert_raises_os_error(errno.EBADF, self.os.write, file_des, b"")
self.os.close(file_des)
def test_open_create_mode_posix(self):
self.check_posix_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_WRONLY | os.O_CREAT, 0o700)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.assertEqual(4, self.os.write(file_des, b"test"))
self.assert_mode_equal(0o700, self.os.stat(file_path).st_mode)
self.os.close(file_des)
def test_open_create_mode_windows(self):
self.check_windows_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_WRONLY | os.O_CREAT, 0o700)
self.assertTrue(self.os.path.exists(file_path))
self.assert_raises_os_error(errno.EBADF, self.os.read, file_des, 5)
self.assertEqual(4, self.os.write(file_des, b"test"))
self.assert_mode_equal(0o666, self.os.stat(file_path).st_mode)
self.os.close(file_des)
def testOpenCreateMode444Windows(self):
self.check_windows_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_WRONLY | os.O_CREAT, 0o442)
self.assert_mode_equal(0o444, self.os.stat(file_path).st_mode)
self.os.close(file_des)
self.os.chmod(file_path, 0o666)
def testOpenCreateMode666Windows(self):
self.check_windows_only()
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_WRONLY | os.O_CREAT, 0o224)
self.assert_mode_equal(0o666, self.os.stat(file_path).st_mode)
self.os.close(file_des)
def test_open_exclusive(self):
file_path = self.make_path("file1")
file_des = self.os.open(file_path, os.O_RDWR | os.O_EXCL | os.O_CREAT)
self.assertTrue(self.os.path.exists(file_path))
self.os.close(file_des)
def test_open_exclusive_raises_if_file_exists(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"contents")
self.assert_raises_os_error(
errno.EEXIST,
self.os.open,
file_path,
os.O_RDWR | os.O_EXCL | os.O_CREAT,
)
self.assert_raises_os_error(
errno.EEXIST,
self.os.open,
file_path,
os.O_RDWR | os.O_EXCL | os.O_CREAT,
)
def test_open_exclusive_raises_if_symlink_exists_in_posix(self):
self.check_posix_only()
link_path = self.make_path("link")
link_target = self.make_path("link_target")
self.os.symlink(link_target, link_path)
self.assert_raises_os_error(
errno.EEXIST,
self.os.open,
link_path,
os.O_CREAT | os.O_WRONLY | os.O_TRUNC | os.O_EXCL,
)
def test_open_exclusive_if_symlink_exists_works_in_windows(self):
self.check_windows_only()
self.skip_if_symlink_not_supported()
link_path = self.make_path("link")
link_target = self.make_path("link_target")
self.os.symlink(link_target, link_path)
fd = self.os.open(link_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC | os.O_EXCL)
self.os.close(fd)
def test_open_directory_raises_under_windows(self):
self.check_windows_only()
dir_path = self.make_path("dir")
self.create_dir(dir_path)
self.assert_raises_os_error(errno.EACCES, self.os.open, dir_path, os.O_RDONLY)
self.assert_raises_os_error(errno.EACCES, self.os.open, dir_path, os.O_WRONLY)
self.assert_raises_os_error(errno.EACCES, self.os.open, dir_path, os.O_RDWR)
def test_open_directory_for_writing_raises_under_posix(self):
self.check_posix_only()
dir_path = self.make_path("dir")
self.create_dir(dir_path)
self.assert_raises_os_error(errno.EISDIR, self.os.open, dir_path, os.O_WRONLY)
self.assert_raises_os_error(errno.EISDIR, self.os.open, dir_path, os.O_RDWR)
def test_open_directory_read_only_under_posix(self):
self.check_posix_only()
self.skip_real_fs()
dir_path = self.make_path("dir")
self.create_dir(dir_path)
file_des = self.os.open(dir_path, os.O_RDONLY)
self.assertEqual(3, file_des)
self.os.close(file_des)
def test_opening_existing_directory_in_creation_mode(self):
self.check_linux_only()
dir_path = self.make_path("alpha")
self.os.mkdir(dir_path)
self.assert_raises_os_error(errno.EISDIR, self.os.open, dir_path, os.O_CREAT)
def test_writing_to_existing_directory(self):
self.check_macos_only()
dir_path = self.make_path("alpha")
self.os.mkdir(dir_path)
fd = self.os.open(dir_path, os.O_CREAT)
self.assert_raises_os_error(errno.EBADF, self.os.write, fd, b"")
def test_opening_existing_directory_in_write_mode(self):
self.check_posix_only()
dir_path = self.make_path("alpha")
self.os.mkdir(dir_path)
self.assert_raises_os_error(errno.EISDIR, self.os.open, dir_path, os.O_WRONLY)
def test_open_mode_posix(self):
self.check_posix_only()
self.skip_real_fs()
file_path = self.make_path("baz")
file_des = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
stat0 = self.os.fstat(file_des)
# not a really good test as this replicates the code,
# but we don't know the umask at the test system
self.assertEqual(0o100777 & ~self.os._umask(), stat0.st_mode)
self.os.close(file_des)
def test_open_mode_windows(self):
self.check_windows_only()
file_path = self.make_path("baz")
file_des = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
stat0 = self.os.fstat(file_des)
self.assertEqual(0o100666, stat0.st_mode)
self.os.close(file_des)
def test_write_read(self):
file_path = self.make_path("file1")
self.create_file(file_path, contents=b"orig contents")
new_contents = b"1234567890abcdef"
with self.open(file_path, "wb") as fh:
fileno = fh.fileno()
self.assertEqual(len(new_contents), self.os.write(fileno, new_contents))
self.check_contents(file_path, new_contents)
with self.open(file_path, "rb") as fh:
fileno = fh.fileno()
self.assertEqual(b"", self.os.read(fileno, 0))
self.assertEqual(new_contents[0:2], self.os.read(fileno, 2))
self.assertEqual(new_contents[2:10], self.os.read(fileno, 8))
self.assertEqual(new_contents[10:], self.os.read(fileno, 100))
self.assertEqual(b"", self.os.read(fileno, 10))
self.assert_raises_os_error(errno.EBADF, self.os.write, fileno, new_contents)
self.assert_raises_os_error(errno.EBADF, self.os.read, fileno, 10)
def test_write_from_different_f_ds(self):
# Regression test for #211
file_path = self.make_path("baz")
fd0 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
fd1 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
self.os.write(fd0, b"aaaa")
self.os.write(fd1, b"bb")
self.assertEqual(4, self.os.path.getsize(file_path))
self.check_contents(file_path, b"bbaa")
self.os.close(fd1)
self.os.close(fd0)
def test_write_from_different_fds_with_append(self):
# Regression test for #268
file_path = self.make_path("baz")
fd0 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
fd1 = self.os.open(file_path, os.O_WRONLY | os.O_APPEND)
self.os.write(fd0, b"aaa")
self.os.write(fd1, b"bbb")
self.assertEqual(6, self.os.path.getsize(file_path))
self.check_contents(file_path, b"aaabbb")
self.os.close(fd1)
self.os.close(fd0)
def test_read_only_read_after_write(self):
# Regression test for #269
self.check_posix_only()
file_path = self.make_path("foo", "bar", "baz")
self.create_file(file_path, contents=b"test")
fd0 = self.os.open(file_path, os.O_CREAT)
fd1 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
self.assertEqual(b"", self.os.read(fd0, 0))
self.os.close(fd1)
self.os.close(fd0)
def test_read_after_closing_write_descriptor(self):
# Regression test for #271
file_path = self.make_path("baz")
fd0 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
fd1 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
fd2 = self.os.open(file_path, os.O_CREAT)
self.os.write(fd1, b"abc")
self.os.close(fd0)
self.assertEqual(b"abc", self.os.read(fd2, 3))
self.os.close(fd2)
self.os.close(fd1)
def test_writing_behind_end_of_file(self):
# Regression test for #273
file_path = self.make_path("baz")
fd1 = self.os.open(file_path, os.O_CREAT)
fd2 = self.os.open(file_path, os.O_RDWR)
self.os.write(fd2, b"m")
fd3 = self.os.open(file_path, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)
self.assertEqual(b"", self.os.read(fd2, 1))
self.os.write(fd2, b"m")
self.assertEqual(b"\x00m", self.os.read(fd1, 2))
self.os.close(fd1)
self.os.close(fd2)
self.os.close(fd3)
def test_devnull_posix(self):
self.check_posix_only()
# make sure os.devnull is correctly set after changing the filesystem
self.setup_fake_fs()
self.assertTrue(self.os.path.exists(self.os.devnull))
def test_devnull_windows(self):
self.check_windows_only()
# make sure os.devnull is correctly set after changing the filesystem
self.setup_fake_fs()
if sys.version_info < (3, 8):
self.assertFalse(self.os.path.exists(self.os.devnull))
else:
self.assertTrue(self.os.path.exists(self.os.devnull))
def test_write_devnull(self):
fd = self.os.open(self.os.devnull, os.O_RDWR)
self.assertEqual(4, self.os.write(fd, b"test"))
self.assertEqual(b"", self.os.read(fd, 4))
self.os.close(fd)
fd = self.os.open(self.os.devnull, os.O_RDONLY)
self.assertEqual(b"", self.os.read(fd, 4))
self.os.close(fd)
def test_sendfile_with_invalid_fd(self):
self.check_linux_only()
self.assert_raises_os_error(errno.EBADF, self.os.sendfile, 100, 101, 0, 100)
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDONLY)
self.assert_raises_os_error(errno.EBADF, self.os.sendfile, fd2, fd1, 0, 4)
def test_sendfile_no_offset(self):
self.check_linux_only()
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDWR)
self.os.sendfile(fd2, fd1, 0, 3)
self.os.close(fd2)
self.os.close(fd1)
with self.open(dst_file_path) as f:
self.assertEqual("tes", f.read())
def test_sendfile_with_offset(self):
self.check_linux_only()
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDWR)
self.os.sendfile(fd2, fd1, 4, 4)
self.os.close(fd2)
self.os.close(fd1)
with self.open(dst_file_path) as f:
self.assertEqual("cont", f.read())
def test_sendfile_twice(self):
self.check_linux_only()
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDWR)
self.os.sendfile(fd2, fd1, 4, 4)
self.os.sendfile(fd2, fd1, 4, 4)
self.os.close(fd2)
self.os.close(fd1)
with self.open(dst_file_path) as f:
self.assertEqual("contcont", f.read())
def test_sendfile_offset_none(self):
self.check_linux_only()
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDWR)
self.os.sendfile(fd2, fd1, None, 4)
self.os.sendfile(fd2, fd1, None, 3)
self.os.close(fd2)
self.os.close(fd1)
with self.open(dst_file_path) as f:
self.assertEqual("testcon", f.read())
@unittest.skipIf(not TestCase.is_macos, "Testing MacOs only behavior")
def test_no_sendfile_to_regular_file_under_macos(self):
src_file_path = self.make_path("foo")
dst_file_path = self.make_path("bar")
self.create_file(src_file_path, "testcontent")
self.create_file(dst_file_path)
fd1 = self.os.open(src_file_path, os.O_RDONLY)
fd2 = self.os.open(dst_file_path, os.O_RDWR)
# raises socket operation on non-socket
self.assertRaises(OSError, self.os.sendfile, fd2, fd1, 0, 3)
self.os.close(fd2)
self.os.close(fd1)
class RealOsModuleLowLevelFileOpTest(FakeOsModuleLowLevelFileOpTest):
def use_real_fs(self):
return True
class FakeOsModuleWalkTest(FakeOsModuleTestBase):
def assertWalkResults(self, expected, top, topdown=True, followlinks=False):
# as the result of walk is unsorted, we have to check against
# sorted results
result = list(
step for step in self.os.walk(top, topdown=topdown, followlinks=followlinks)
)
result = sorted(result, key=lambda lst: lst[0])
expected = sorted(expected, key=lambda lst: lst[0])
self.assertEqual(len(expected), len(result))
for entry, expected_entry in zip(result, expected):
self.assertEqual(expected_entry[0], entry[0])
self.assertEqual(expected_entry[1], sorted(entry[1]))
self.assertEqual(expected_entry[2], sorted(entry[2]))
def ResetErrno(self):
"""Reset the last seen errno."""
self.last_errno = False
def StoreErrno(self, os_error):
"""Store the last errno we saw."""
self.last_errno = os_error.errno
def GetErrno(self):
"""Return the last errno we saw."""
return self.last_errno
def test_walk_top_down(self):
"""Walk down ordering is correct."""
base_dir = self.make_path("foo")
self.create_file(self.os.path.join(base_dir, "1.txt"))
self.create_file(self.os.path.join(base_dir, "bar1", "2.txt"))
self.create_file(self.os.path.join(base_dir, "bar1", "baz", "3.txt"))
self.create_file(self.os.path.join(base_dir, "bar2", "4.txt"))
expected = [
(base_dir, ["bar1", "bar2"], ["1.txt"]),
(self.os.path.join(base_dir, "bar1"), ["baz"], ["2.txt"]),
(self.os.path.join(base_dir, "bar1", "baz"), [], ["3.txt"]),
(self.os.path.join(base_dir, "bar2"), [], ["4.txt"]),
]
self.assertWalkResults(expected, base_dir)
def test_walk_bottom_up(self):
"""Walk up ordering is correct."""
base_dir = self.make_path("foo")
self.create_file(self.os.path.join(base_dir, "bar1", "baz", "1.txt"))
self.create_file(self.os.path.join(base_dir, "bar1", "2.txt"))
self.create_file(self.os.path.join(base_dir, "bar2", "3.txt"))
self.create_file(self.os.path.join(base_dir, "4.txt"))
expected = [
(self.os.path.join(base_dir, "bar1", "baz"), [], ["1.txt"]),
(self.os.path.join(base_dir, "bar1"), ["baz"], ["2.txt"]),
(self.os.path.join(base_dir, "bar2"), [], ["3.txt"]),
(base_dir, ["bar1", "bar2"], ["4.txt"]),
]
self.assertWalkResults(expected, self.make_path("foo"), topdown=False)
def test_walk_raises_if_non_existent(self):
"""Raises an exception when attempting to walk
non-existent directory."""
directory = self.make_path("foo", "bar")
self.assertEqual(False, self.os.path.exists(directory))
generator = self.os.walk(directory)
self.assertRaises(StopIteration, next, generator)
def test_walk_raises_if_not_directory(self):
"""Raises an exception when attempting to walk a non-directory."""
filename = self.make_path("foo", "bar")
self.create_file(filename)
generator = self.os.walk(filename)
self.assertRaises(StopIteration, next, generator)
def test_walk_calls_on_error_if_non_existent(self):
"""Calls onerror with correct errno when walking
non-existent directory."""
self.ResetErrno()
directory = self.make_path("foo", "bar")
self.assertEqual(False, self.os.path.exists(directory))
# Calling os.walk on a non-existent directory should trigger
# a call to the onerror method.
# We do not actually care what, if anything, is returned.
for _ in self.os.walk(directory, onerror=self.StoreErrno):
pass
self.assertTrue(self.GetErrno() in (errno.ENOTDIR, errno.ENOENT))
def test_walk_calls_on_error_if_not_directory(self):
"""Calls onerror with correct errno when walking non-directory."""
self.ResetErrno()
filename = self.make_path("foo" "bar")
self.create_file(filename)
self.assertEqual(True, self.os.path.exists(filename))
# Calling `os.walk` on a file should trigger a call to the
# `onerror` method.
# We do not actually care what, if anything, is returned.
for _ in self.os.walk(filename, onerror=self.StoreErrno):
pass
self.assertTrue(self.GetErrno() in (errno.ENOTDIR, errno.EACCES))
def test_walk_skips_removed_directories(self):
"""Caller can modify list of directories to visit while walking."""
root = self.make_path("foo")
visit = "visit"
no_visit = "no_visit"
self.create_file(self.os.path.join(root, "bar"))
self.create_file(self.os.path.join(root, visit, "1.txt"))
self.create_file(self.os.path.join(root, visit, "2.txt"))
self.create_file(self.os.path.join(root, no_visit, "3.txt"))
self.create_file(self.os.path.join(root, no_visit, "4.txt"))
generator = self.os.walk(self.make_path("foo"))
root_contents = next(generator)
root_contents[1].remove(no_visit)
visited_visit_directory = False
for root, _dirs, _files in iter(generator):
self.assertEqual(False, root.endswith(self.os.path.sep + no_visit))
if root.endswith(self.os.path.sep + visit):
visited_visit_directory = True
self.assertEqual(True, visited_visit_directory)
def test_walk_followsymlink_disabled(self):
self.check_posix_only()
base_dir = self.make_path("foo")
link_dir = self.make_path("linked")
self.create_file(self.os.path.join(link_dir, "subfile"))
self.create_file(self.os.path.join(base_dir, "bar", "baz"))
self.create_file(self.os.path.join(base_dir, "bar", "xyzzy", "plugh"))
self.create_symlink(self.os.path.join(base_dir, "created_link"), link_dir)
expected = [
(base_dir, ["bar", "created_link"], []),
(self.os.path.join(base_dir, "bar"), ["xyzzy"], ["baz"]),
(self.os.path.join(base_dir, "bar", "xyzzy"), [], ["plugh"]),
]
self.assertWalkResults(expected, base_dir, followlinks=False)
expected = [(self.os.path.join(base_dir, "created_link"), [], ["subfile"])]
self.assertWalkResults(
expected,
self.os.path.join(base_dir, "created_link"),
followlinks=False,
)
def test_walk_followsymlink_enabled(self):
self.check_posix_only()
base_dir = self.make_path("foo")
link_dir = self.make_path("linked")
self.create_file(self.os.path.join(link_dir, "subfile"))
self.create_file(self.os.path.join(base_dir, "bar", "baz"))
self.create_file(self.os.path.join(base_dir, "bar", "xyzzy", "plugh"))
self.create_symlink(
self.os.path.join(base_dir, "created_link"),
self.os.path.join(link_dir),
)
expected = [
(base_dir, ["bar", "created_link"], []),
(self.os.path.join(base_dir, "bar"), ["xyzzy"], ["baz"]),
(self.os.path.join(base_dir, "bar", "xyzzy"), [], ["plugh"]),
(self.os.path.join(base_dir, "created_link"), [], ["subfile"]),
]
self.assertWalkResults(expected, base_dir, followlinks=True)
expected = [(self.os.path.join(base_dir, "created_link"), [], ["subfile"])]
self.assertWalkResults(
expected,
self.os.path.join(base_dir, "created_link"),
followlinks=True,
)
def test_walk_linked_file_in_subdir(self):
# regression test for #559 (tested for link on incomplete path)
self.check_posix_only()
# need to have a top-level link to reproduce the bug - skip real fs
self.skip_real_fs()
file_path = "/foo/bar/baz"
self.create_file(file_path)
self.create_symlink("bar", file_path)
expected = [("/foo", ["bar"], []), ("/foo/bar", [], ["baz"])]
self.assertWalkResults(expected, "/foo")
def test_base_dirpath(self):
# regression test for #512
file_path = self.make_path("foo", "bar", "baz")
self.create_file(file_path)
variants = [
self.make_path("foo", "bar"),
self.make_path("foo", "..", "foo", "bar"),
self.make_path("foo", "..", "foo", "bar") + self.os.path.sep * 3,
self.make_path("foo") + self.os.path.sep * 3 + "bar",
]
for base_dir in variants:
for dirpath, _dirnames, _filenames in self.os.walk(base_dir):
self.assertEqual(dirpath, base_dir)
file_path = self.make_path("foo", "bar", "dir", "baz")
self.create_file(file_path)
for base_dir in variants:
for dirpath, _dirnames, _filenames in self.os.walk(base_dir):
self.assertTrue(dirpath.startswith(base_dir))
class RealOsModuleWalkTest(FakeOsModuleWalkTest):
def use_real_fs(self):
return True
class FakeOsModuleDirFdTest(FakeOsModuleTestBase):
def setUp(self):
super(FakeOsModuleDirFdTest, self).setUp()
self.os.supports_dir_fd.clear()
self.filesystem.is_windows_fs = False
self.filesystem.create_dir("/foo/bar")
self.dir_fd = self.os.open("/foo", os.O_RDONLY)
self.filesystem.create_file("/foo/baz")
def test_access(self):
self.assertRaises(
NotImplementedError,
self.os.access,
"baz",
self.os.F_OK,
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.access)
self.assertTrue(self.os.access("baz", self.os.F_OK, dir_fd=self.dir_fd))
def test_chmod(self):
self.assertRaises(
NotImplementedError,
self.os.chmod,
"baz",
0o6543,
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.chmod)
self.os.chmod("baz", 0o6543, dir_fd=self.dir_fd)
st = self.os.stat("/foo/baz")
self.assert_mode_equal(0o6543, st.st_mode)
@unittest.skipIf(not hasattr(os, "chown"), "chown not on all platforms available")
def test_chown(self):
self.assertRaises(
NotImplementedError,
self.os.chown,
"baz",
100,
101,
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.chown)
self.os.chown("baz", 100, 101, dir_fd=self.dir_fd)
st = self.os.stat("/foo/baz")
self.assertEqual(st[stat.ST_UID], 100)
self.assertEqual(st[stat.ST_GID], 101)
def test_link_src_fd(self):
self.assertRaises(
NotImplementedError,
self.os.link,
"baz",
"/bat",
src_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.link)
self.os.link("baz", "/bat", src_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/bat"))
def test_link_dst_fd(self):
self.assertRaises(
NotImplementedError,
self.os.link,
"baz",
"/bat",
dst_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.link)
self.os.link("/foo/baz", "bat", dst_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/bat"))
def test_symlink(self):
self.assertRaises(
NotImplementedError,
self.os.symlink,
"baz",
"/bat",
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.symlink)
self.os.symlink("baz", "/bat", dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/bat"))
def test_readlink(self):
self.skip_if_symlink_not_supported()
self.filesystem.create_symlink("/meyer/lemon/pie", "/foo/baz")
self.filesystem.create_symlink("/geo/metro", "/meyer")
self.assertRaises(
NotImplementedError,
self.os.readlink,
"/geo/metro/lemon/pie",
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.readlink)
self.assertEqual(
"/foo/baz",
self.os.readlink("/geo/metro/lemon/pie", dir_fd=self.dir_fd),
)
def test_stat(self):
self.assertRaises(NotImplementedError, self.os.stat, "baz", dir_fd=self.dir_fd)
self.os.supports_dir_fd.add(self.os.stat)
st = self.os.stat("baz", dir_fd=self.dir_fd)
self.assertEqual(st.st_mode, 0o100666)
def test_lstat(self):
self.assertRaises(NotImplementedError, self.os.lstat, "baz", dir_fd=self.dir_fd)
self.os.supports_dir_fd.add(self.os.lstat)
st = self.os.lstat("baz", dir_fd=self.dir_fd)
self.assertEqual(st.st_mode, 0o100666)
def test_mkdir(self):
self.assertRaises(
NotImplementedError, self.os.mkdir, "newdir", dir_fd=self.dir_fd
)
self.os.supports_dir_fd.add(self.os.mkdir)
self.os.mkdir("newdir", dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/newdir"))
def test_rmdir(self):
self.assertRaises(NotImplementedError, self.os.rmdir, "bar", dir_fd=self.dir_fd)
self.os.supports_dir_fd.add(self.os.rmdir)
self.os.rmdir("bar", dir_fd=self.dir_fd)
self.assertFalse(self.os.path.exists("/foo/bar"))
@unittest.skipIf(not hasattr(os, "mknod"), "mknod not on all platforms available")
def test_mknod(self):
self.assertRaises(
NotImplementedError, self.os.mknod, "newdir", dir_fd=self.dir_fd
)
self.os.supports_dir_fd.add(self.os.mknod)
self.os.mknod("newdir", dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/newdir"))
def test_rename_src_fd(self):
self.assertRaises(
NotImplementedError,
self.os.rename,
"baz",
"/foo/batz",
src_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.rename)
self.os.rename("bar", "/foo/batz", src_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/batz"))
def test_rename_dst_fd(self):
self.assertRaises(
NotImplementedError,
self.os.rename,
"baz",
"/foo/batz",
dst_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.rename)
self.os.rename("/foo/bar", "batz", dst_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/batz"))
def test_replace_src_fd(self):
self.assertRaises(
NotImplementedError,
self.os.rename,
"baz",
"/foo/batz",
src_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.rename)
self.os.replace("bar", "/foo/batz", src_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/batz"))
def test_replace_dst_fd(self):
self.assertRaises(
NotImplementedError,
self.os.rename,
"baz",
"/foo/batz",
dst_dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.rename)
self.os.replace("/foo/bar", "batz", dst_dir_fd=self.dir_fd)
self.assertTrue(self.os.path.exists("/foo/batz"))
def test_remove(self):
self.assertRaises(
NotImplementedError, self.os.remove, "baz", dir_fd=self.dir_fd
)
self.os.supports_dir_fd.add(self.os.remove)
self.os.remove("baz", dir_fd=self.dir_fd)
self.assertFalse(self.os.path.exists("/foo/baz"))
def test_unlink(self):
self.assertRaises(
NotImplementedError, self.os.unlink, "baz", dir_fd=self.dir_fd
)
self.os.supports_dir_fd.add(self.os.unlink)
self.os.unlink("baz", dir_fd=self.dir_fd)
self.assertFalse(self.os.path.exists("/foo/baz"))
def test_utime(self):
self.assertRaises(
NotImplementedError,
self.os.utime,
"baz",
(1, 2),
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.utime)
self.os.utime("baz", times=(1, 2), dir_fd=self.dir_fd)
st = self.os.stat("/foo/baz")
self.assertEqual(1, st.st_atime)
self.assertEqual(2, st.st_mtime)
def test_open(self):
self.assertRaises(
NotImplementedError,
self.os.open,
"baz",
os.O_RDONLY,
dir_fd=self.dir_fd,
)
self.os.supports_dir_fd.add(self.os.open)
fd = self.os.open("baz", os.O_RDONLY, dir_fd=self.dir_fd)
self.assertLess(0, fd)
class StatPropagationTest(TestCase):
def setUp(self):
self.filesystem = fake_filesystem.FakeFilesystem(path_separator="/")
self.os = fake_os.FakeOsModule(self.filesystem)
self.open = fake_open.FakeFileOpen(self.filesystem)
def test_file_size_updated_via_close(self):
"""test that file size gets updated via close()."""
file_dir = "xyzzy"
file_path = "xyzzy/close"
content = "This is a test."
self.os.mkdir(file_dir)
fh = self.open(file_path, "w")
self.assertEqual(0, self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual("", self.filesystem.get_object(file_path).contents)
fh.write(content)
self.assertEqual(0, self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual("", self.filesystem.get_object(file_path).contents)
fh.close()
self.assertEqual(len(content), self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual(content, self.filesystem.get_object(file_path).contents)
def test_file_size_not_reset_after_close(self):
file_dir = "xyzzy"
file_path = "xyzzy/close"
self.os.mkdir(file_dir)
size = 1234
# The file has size, but no content. When the file is opened for
# reading, its size should be preserved.
self.filesystem.create_file(file_path, st_size=size)
fh = self.open(file_path, "r")
fh.close()
self.assertEqual(size, self.open(file_path, "r").size())
def test_file_size_after_write(self):
file_path = "test_file"
original_content = "abcdef"
original_size = len(original_content)
self.filesystem.create_file(file_path, contents=original_content)
added_content = "foo bar"
expected_size = original_size + len(added_content)
fh = self.open(file_path, "a")
fh.write(added_content)
self.assertEqual(original_size, fh.size())
fh.close()
self.assertEqual(expected_size, self.open(file_path, "r").size())
def test_large_file_size_after_write(self):
file_path = "test_file"
original_content = "abcdef"
original_size = len(original_content)
self.filesystem.create_file(file_path, st_size=original_size)
added_content = "foo bar"
fh = self.open(file_path, "a")
self.assertRaises(
fake_file.FakeLargeFileIoException,
lambda: fh.write(added_content),
)
def test_file_size_updated_via_flush(self):
"""test that file size gets updated via flush()."""
file_dir = "xyzzy"
file_name = "flush"
file_path = self.os.path.join(file_dir, file_name)
content = "This might be a test."
self.os.mkdir(file_dir)
fh = self.open(file_path, "w")
self.assertEqual(0, self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual("", self.filesystem.get_object(file_path).contents)
fh.write(content)
self.assertEqual(0, self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual("", self.filesystem.get_object(file_path).contents)
fh.flush()
self.assertEqual(len(content), self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual(content, self.filesystem.get_object(file_path).contents)
fh.close()
self.assertEqual(len(content), self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual(content, self.filesystem.get_object(file_path).contents)
def test_file_size_truncation(self):
"""test that file size gets updated via open()."""
file_dir = "xyzzy"
file_path = "xyzzy/truncation"
content = "AAA content."
# pre-create file with content
self.os.mkdir(file_dir)
fh = self.open(file_path, "w")
fh.write(content)
fh.close()
self.assertEqual(len(content), self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual(content, self.filesystem.get_object(file_path).contents)
# test file truncation
fh = self.open(file_path, "w")
self.assertEqual(0, self.os.stat(file_path)[stat.ST_SIZE])
self.assertEqual("", self.filesystem.get_object(file_path).contents)
fh.close()
@unittest.skipIf(not use_scandir, "only run if scandir is available")
class FakeScandirTest(FakeOsModuleTestBase):
FILE_SIZE = 50
LINKED_FILE_SIZE = 10
def setUp(self):
super(FakeScandirTest, self).setUp()
self.supports_symlinks = not self.is_windows or not self.use_real_fs()
if use_scandir_package:
if self.use_real_fs():
from scandir import scandir
else:
import pyfakefs.fake_scandir
def fake_scan_dir(p):
return pyfakefs.fake_scandir.scandir(self.filesystem, p)
scandir = fake_scan_dir
else:
scandir = self.os.scandir
self.scandir = scandir
self.directory = self.make_path("xyzzy", "plugh")
link_dir = self.make_path("linked", "plugh")
self.linked_file_path = self.os.path.join(link_dir, "file")
self.linked_dir_path = self.os.path.join(link_dir, "dir")
self.rel_linked_dir_path = self.os.path.join(
"..", "..", "linked", "plugh", "dir"
)
self.rel_linked_file_path = self.os.path.join(
"..", "..", "linked", "plugh", "file"
)
self.dir_path = self.os.path.join(self.directory, "dir")
self.file_path = self.os.path.join(self.directory, "file")
self.file_link_path = self.os.path.join(self.directory, "link_file")
self.dir_link_path = self.os.path.join(self.directory, "link_dir")
self.file_rel_link_path = self.os.path.join(self.directory, "rel_link_file")
self.dir_rel_link_path = self.os.path.join(self.directory, "rel_link_dir")
self.create_dir(self.dir_path)
self.create_file(self.file_path, contents=b"b" * self.FILE_SIZE)
if self.supports_symlinks:
self.create_dir(self.linked_dir_path)
self.create_file(
self.linked_file_path, contents=b"a" * self.LINKED_FILE_SIZE
),
self.create_symlink(self.dir_link_path, self.linked_dir_path)
self.create_symlink(self.file_link_path, self.linked_file_path)
self.create_symlink(self.dir_rel_link_path, self.rel_linked_dir_path)
self.create_symlink(self.file_rel_link_path, self.rel_linked_file_path)
# Changing the working directory below is to make sure relative paths
# to the files and directories created above are reasonable.
# Corner-cases about relative paths are better checked in tests created
# for that purpose.
#
# WARNING: This is self.pretest_cwd and not self.cwd as the latter is
# used by superclass RealFsTestCase.
self.pretest_cwd = self.os.getcwd()
self.os.chdir(self.base_path)
self.dir_entries = list(self.do_scandir())
self.dir_entries.sort(key=lambda entry: entry.name)
def tearDown(self):
self.os.chdir(self.pretest_cwd)
super().tearDown()
def do_scandir(self):
"""Hook to override how scandir is called."""
return self.scandir(self.directory)
def scandir_path(self):
"""Hook to override the expected scandir() path in DirEntry.path."""
return self.directory
def test_paths(self):
sorted_names = ["dir", "file"]
if self.supports_symlinks:
sorted_names.extend(
["link_dir", "link_file", "rel_link_dir", "rel_link_file"]
)
self.assertEqual(len(sorted_names), len(self.dir_entries))
self.assertEqual(sorted_names, [entry.name for entry in self.dir_entries])
sorted_paths = [
self.os.path.join(self.scandir_path(), name) for name in sorted_names
]
self.assertEqual(sorted_paths, [entry.path for entry in self.dir_entries])
def test_isfile(self):
self.assertFalse(self.dir_entries[0].is_file())
self.assertTrue(self.dir_entries[1].is_file())
if self.supports_symlinks:
self.assertFalse(self.dir_entries[2].is_file())
self.assertFalse(self.dir_entries[2].is_file(follow_symlinks=False))
self.assertTrue(self.dir_entries[3].is_file())
self.assertFalse(self.dir_entries[3].is_file(follow_symlinks=False))
self.assertFalse(self.dir_entries[4].is_file())
self.assertFalse(self.dir_entries[4].is_file(follow_symlinks=False))
self.assertTrue(self.dir_entries[5].is_file())
self.assertFalse(self.dir_entries[5].is_file(follow_symlinks=False))
def test_isdir(self):
self.assertTrue(self.dir_entries[0].is_dir())
self.assertFalse(self.dir_entries[1].is_dir())
if self.supports_symlinks:
self.assertTrue(self.dir_entries[2].is_dir())
self.assertFalse(self.dir_entries[2].is_dir(follow_symlinks=False))
self.assertFalse(self.dir_entries[3].is_dir())
self.assertFalse(self.dir_entries[3].is_dir(follow_symlinks=False))
self.assertTrue(self.dir_entries[4].is_dir())
self.assertFalse(self.dir_entries[4].is_dir(follow_symlinks=False))
self.assertFalse(self.dir_entries[5].is_dir())
self.assertFalse(self.dir_entries[5].is_dir(follow_symlinks=False))
def test_is_link(self):
if self.supports_symlinks:
self.assertFalse(self.dir_entries[0].is_symlink())
self.assertFalse(self.dir_entries[1].is_symlink())
self.assertTrue(self.dir_entries[2].is_symlink())
self.assertTrue(self.dir_entries[3].is_symlink())
self.assertTrue(self.dir_entries[4].is_symlink())
self.assertTrue(self.dir_entries[5].is_symlink())
def test_path_links_not_resolved(self):
# regression test for #350
self.skip_if_symlink_not_supported()
dir_path = self.make_path("A", "B", "C")
self.os.makedirs(self.os.path.join(dir_path, "D"))
link_path = self.make_path("A", "C")
self.os.symlink(dir_path, link_path)
self.assertEqual(
[self.os.path.join(link_path, "D")],
[f.path for f in self.scandir(link_path)],
)
def test_inode(self):
if use_scandir and self.use_real_fs():
if self.is_windows:
self.skipTest("inode seems not to work in scandir module under Windows")
if IN_DOCKER:
self.skipTest("inode seems not to work in a Docker container")
self.assertEqual(
self.os.stat(self.dir_path).st_ino, self.dir_entries[0].inode()
)
self.assertEqual(
self.os.stat(self.file_path).st_ino, self.dir_entries[1].inode()
)
if self.supports_symlinks:
self.assertEqual(
self.os.lstat(self.dir_link_path).st_ino,
self.dir_entries[2].inode(),
)
self.assertEqual(
self.os.lstat(self.file_link_path).st_ino,
self.dir_entries[3].inode(),
)
self.assertEqual(
self.os.lstat(self.dir_rel_link_path).st_ino,
self.dir_entries[4].inode(),
)
self.assertEqual(
self.os.lstat(self.file_rel_link_path).st_ino,
self.dir_entries[5].inode(),
)
def test_scandir_stat_nlink(self):
# regression test for #350
stat_nlink = self.os.stat(self.file_path).st_nlink
self.assertEqual(1, stat_nlink)
dir_iter = self.scandir(self.directory)
for item in dir_iter:
if item.path == self.file_path:
scandir_stat_nlink = item.stat().st_nlink
if self.is_windows_fs:
self.assertEqual(0, scandir_stat_nlink)
else:
self.assertEqual(1, scandir_stat_nlink)
self.assertEqual(1, self.os.stat(self.file_path).st_nlink)
@unittest.skipIf(not hasattr(os, "O_DIRECTORY"), "opening directory not supported")
@unittest.skipIf(sys.version_info < (3, 7), "fd not supported for scandir")
def test_scandir_with_fd(self):
# regression test for #723
temp_dir = self.make_path("tmp", "dir")
self.create_dir(temp_dir)
self.create_file(self.os.path.join(temp_dir, "file1"))
self.create_file(self.os.path.join(temp_dir, "file2"))
self.create_dir(self.os.path.join(temp_dir, "subdir"))
self.os.chdir(temp_dir)
fd = self.os.open(temp_dir, flags=os.O_RDONLY | os.O_DIRECTORY)
children = [dir_entry.name for dir_entry in self.os.scandir(fd)]
assert sorted(children) == ["file1", "file2", "subdir"]
def check_stat(
self, absolute_symlink_expected_size, relative_symlink_expected_size
):
self.assertEqual(self.FILE_SIZE, self.dir_entries[1].stat().st_size)
if not self.is_windows_fs or sys.version_info < (3, 12):
# behavior of st_ctime changed in 3.12, to be adapted later
self.assertEqual(
int(self.os.stat(self.dir_path).st_ctime),
int(self.dir_entries[0].stat().st_ctime),
)
if self.supports_symlinks:
self.assertEqual(self.LINKED_FILE_SIZE, self.dir_entries[3].stat().st_size)
self.assertEqual(
absolute_symlink_expected_size,
self.dir_entries[3].stat(follow_symlinks=False).st_size,
)
self.assertEqual(
int(self.os.stat(self.linked_dir_path).st_mtime),
int(self.dir_entries[2].stat().st_mtime),
)
self.assertEqual(self.LINKED_FILE_SIZE, self.dir_entries[5].stat().st_size)
self.assertEqual(
relative_symlink_expected_size,
self.dir_entries[5].stat(follow_symlinks=False).st_size,
)
self.assertEqual(
int(self.os.stat(self.linked_dir_path).st_mtime),
int(self.dir_entries[4].stat().st_mtime),
)
@unittest.skipIf(TestCase.is_windows, "POSIX specific behavior")
def test_stat_posix(self):
self.check_stat(len(self.linked_file_path), len(self.rel_linked_file_path))
@unittest.skipIf(not TestCase.is_windows, "Windows specific behavior")
def test_stat_windows(self):
self.check_stat(0, 0)
def test_index_access_to_stat_times_returns_int(self):
if not self.is_windows_fs or sys.version_info < (3, 12):
# behavior of st_ctime changed in 3.12, to be adapted later
self.assertEqual(
self.os.stat(self.dir_path)[stat.ST_CTIME],
int(self.dir_entries[0].stat().st_ctime),
)
if self.supports_symlinks:
self.assertEqual(
self.os.stat(self.linked_dir_path)[stat.ST_MTIME],
int(self.dir_entries[2].stat().st_mtime),
)
self.assertEqual(
self.os.stat(self.linked_dir_path)[stat.ST_MTIME],
int(self.dir_entries[4].stat().st_mtime),
)
def test_stat_ino_dev(self):
if self.supports_symlinks:
file_stat = self.os.stat(self.linked_file_path)
self.assertEqual(file_stat.st_ino, self.dir_entries[3].stat().st_ino)
self.assertEqual(file_stat.st_dev, self.dir_entries[3].stat().st_dev)
self.assertEqual(file_stat.st_ino, self.dir_entries[5].stat().st_ino)
self.assertEqual(file_stat.st_dev, self.dir_entries[5].stat().st_dev)
@unittest.skipIf(
sys.version_info < (3, 6) or not use_builtin_scandir,
"Path-like objects have been introduced in Python 3.6",
)
def test_path_like(self):
self.assertTrue(isinstance(self.dir_entries[0], os.PathLike))
self.assertEqual(
self.os.path.join(self.scandir_path(), "dir"),
os.fspath(self.dir_entries[0]),
)
self.assertEqual(
self.os.path.join(self.scandir_path(), "file"),
os.fspath(self.dir_entries[1]),
)
def test_non_existing_dir(self):
# behaves differently in different systems, so we skip the real fs test
self.skip_real_fs()
self.assert_raises_os_error(errno.ENOENT, self.scandir, "non_existing/fake_dir")
class RealScandirTest(FakeScandirTest):
def use_real_fs(self):
return True
class FakeScandirRelTest(FakeScandirTest):
def scandir_path(self):
# When scandir is called with a relative path, that relative path is
# used in the path attribute of the DirEntry objects.
return self.os.path.relpath(self.directory)
def do_scandir(self):
return self.scandir(self.os.path.relpath(self.directory))
class RealScandirRelTest(FakeScandirRelTest):
def use_real_fs(self):
return True
@unittest.skipIf(TestCase.is_windows, "dir_fd not supported for os.scandir in Windows")
@unittest.skipIf(use_scandir_package, "no dir_fd support for scandir package")
class FakeScandirFdTest(FakeScandirTest):
def tearDown(self):
self.os.close(self.dir_fd)
super(FakeScandirFdTest, self).tearDown()
def scandir_path(self):
# When scandir is called with a filedescriptor, only the name of the
# entry is returned in the path attribute of the DirEntry objects.
return ""
def do_scandir(self):
self.dir_fd = self.os.open(self.directory, os.O_RDONLY)
return self.scandir(self.dir_fd)
class RealScandirFdTest(FakeScandirFdTest):
def use_real_fs(self):
return True
class FakeScandirFdRelTest(FakeScandirFdTest):
def do_scandir(self):
self.dir_fd = self.os.open(self.os.path.relpath(self.directory), os.O_RDONLY)
return self.scandir(self.dir_fd)
class RealScandirFdRelTest(FakeScandirFdRelTest):
def use_real_fs(self):
return True
class FakeExtendedAttributeTest(FakeOsModuleTestBase):
def setUp(self):
super(FakeExtendedAttributeTest, self).setUp()
self.check_linux_only()
self.dir_path = self.make_path("foo")
self.file_path = self.os.path.join(self.dir_path, "bar")
self.create_file(self.file_path)
def test_empty_xattr(self):
self.assertEqual([], self.os.listxattr(self.dir_path))
self.assertEqual([], self.os.listxattr(self.file_path))
def test_setxattr(self):
self.assertRaises(TypeError, self.os.setxattr, self.file_path, "test", "value")
self.assert_raises_os_error(
errno.EEXIST,
self.os.setxattr,
self.file_path,
"test",
b"value",
self.os.XATTR_REPLACE,
)
self.os.setxattr(self.file_path, "test", b"value")
self.assertEqual(b"value", self.os.getxattr(self.file_path, "test"))
self.assert_raises_os_error(
errno.ENODATA,
self.os.setxattr,
self.file_path,
"test",
b"value",
self.os.XATTR_CREATE,
)
def test_removeattr(self):
self.os.removexattr(self.file_path, "test")
self.assertEqual([], self.os.listxattr(self.file_path))
self.os.setxattr(self.file_path, b"test", b"value")
self.assertEqual(["test"], self.os.listxattr(self.file_path))
self.assertEqual(b"value", self.os.getxattr(self.file_path, "test"))
self.os.removexattr(self.file_path, "test")
self.assertEqual([], self.os.listxattr(self.file_path))
self.assertIsNone(self.os.getxattr(self.file_path, "test"))
def test_default_path(self):
self.os.chdir(self.dir_path)
self.os.setxattr(self.dir_path, b"test", b"value")
self.assertEqual(["test"], self.os.listxattr())
self.assertEqual(b"value", self.os.getxattr(self.dir_path, "test"))
class FakeOsUnreadableDirTest(FakeOsModuleTestBase):
def setUp(self):
if self.use_real_fs():
# unreadable dirs in Windows are only simulated
# and cannot be created in the real OS using file system
# functions only
self.check_posix_only()
super(FakeOsUnreadableDirTest, self).setUp()
self.dir_path = self.make_path("some_dir")
self.file_path = self.os.path.join(self.dir_path, "some_file")
self.create_file(self.file_path)
self.chmod(self.dir_path, 0o000)
def chmod(self, path, mode):
if self.is_windows_fs:
self.filesystem.chmod(path, mode, force_unix_mode=True)
else:
self.os.chmod(path, mode)
def test_getuid(self):
self.skip_real_fs() # won't change user in real fs
self.check_posix_only()
uid = self.os.getuid()
set_uid(uid + 10)
self.assertEqual(uid + 10, self.os.getuid())
self.assertEqual(uid + 10, get_uid())
set_uid(uid)
self.assertEqual(uid, self.os.getuid())
def test_getgid(self):
self.skip_real_fs() # won't change group in real fs
self.check_posix_only()
gid = self.os.getgid()
set_gid(gid + 10)
self.assertEqual(gid + 10, self.os.getgid())
self.assertEqual(gid + 10, get_gid())
set_gid(gid)
self.assertEqual(gid, self.os.getgid())
def test_listdir_unreadable_dir(self):
if not is_root():
self.assert_raises_os_error(errno.EACCES, self.os.listdir, self.dir_path)
else:
self.assertEqual(["some_file"], self.os.listdir(self.dir_path))
def test_listdir_user_readable_dir(self):
self.chmod(self.dir_path, 0o600)
self.assertEqual(["some_file"], self.os.listdir(self.dir_path))
self.chmod(self.dir_path, 0o000)
def test_listdir_user_readable_dir_from_other_user(self):
self.skip_real_fs() # won't change user in real fs
self.check_posix_only()
user_id = get_uid()
set_uid(user_id + 1)
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o600)
self.assertTrue(self.os.path.exists(dir_path))
set_uid(user_id)
if not is_root():
with self.assertRaises(PermissionError):
self.os.listdir(dir_path)
else:
self.assertEqual(["some_file"], self.os.listdir(self.dir_path))
def test_listdir_group_readable_dir_from_other_user(self):
self.skip_real_fs() # won't change user in real fs
user_id = get_uid()
set_uid(user_id + 1)
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o660)
self.assertTrue(self.os.path.exists(dir_path))
set_uid(user_id)
self.assertEqual([], self.os.listdir(dir_path))
def test_listdir_group_readable_dir_from_other_group(self):
self.skip_real_fs() # won't change user in real fs
self.check_posix_only()
group_id = self.os.getgid()
set_gid(group_id + 1)
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o060)
self.assertTrue(self.os.path.exists(dir_path))
set_gid(group_id)
if not is_root():
with self.assertRaises(PermissionError):
self.os.listdir(dir_path)
else:
self.assertEqual([], self.os.listdir(dir_path))
def test_listdir_other_readable_dir_from_other_group(self):
self.skip_real_fs() # won't change user in real fs
group_id = get_gid()
set_gid(group_id + 1)
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o004)
self.assertTrue(self.os.path.exists(dir_path))
set_gid(group_id)
self.assertEqual([], self.os.listdir(dir_path))
def test_stat_unreadable_dir(self):
self.assertEqual(0, self.os.stat(self.dir_path).st_mode & 0o666)
def test_chmod_unreadable_dir(self):
self.chmod(self.dir_path, 0o666)
self.assertEqual(0o666, self.os.stat(self.dir_path).st_mode & 0o666)
self.chmod(self.dir_path, 0o000)
self.assertEqual(0, self.os.stat(self.dir_path).st_mode & 0o666)
def test_stat_file_in_unreadable_dir(self):
if not is_root():
self.assert_raises_os_error(errno.EACCES, self.os.stat, self.file_path)
else:
self.assertEqual(0, self.os.stat(self.file_path).st_size)
def test_remove_unreadable_dir(self):
self.check_posix_only()
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o000)
self.assertTrue(self.os.path.exists(dir_path))
self.os.rmdir(dir_path)
self.assertFalse(self.os.path.exists(dir_path))
def test_remove_unreadable_dir_from_other_user(self):
self.skip_real_fs() # won't change user in real fs
user_id = get_uid()
set_uid(user_id + 1)
dir_path = self.make_path("dir1")
self.create_dir(dir_path, perm=0o000)
self.assertTrue(self.os.path.exists(dir_path))
set_uid(user_id)
if not is_root():
with self.assertRaises(PermissionError):
self.os.rmdir(dir_path)
self.assertTrue(self.os.path.exists(dir_path))
else:
self.os.rmdir(dir_path)
self.assertFalse(self.os.path.exists(dir_path))
class RealOsUnreadableDirTest(FakeOsUnreadableDirTest):
def use_real_fs(self):
return True
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