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# 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.
"""Tests for `fake_filesystem_shutil` if used in
`fake_filesystem_unittest.TestCase`.
Note that almost all of the functionality is delegated to the real `shutil`
and works correctly with the fake filesystem because of the faked `os` module.
"""
import os
import shutil
import sys
import tempfile
import unittest
from pathlib import Path
from pyfakefs import fake_filesystem_unittest
from pyfakefs.helpers import get_uid, set_uid, is_root, IS_PYPY
from pyfakefs.tests.test_utils import RealFsTestMixin
is_windows = sys.platform == "win32"
class RealFsTestCase(fake_filesystem_unittest.TestCase, RealFsTestMixin):
def __init__(self, methodName="runTest"):
fake_filesystem_unittest.TestCase.__init__(self, methodName)
RealFsTestMixin.__init__(self)
def setUp(self):
RealFsTestMixin.setUp(self)
self.cwd = os.getcwd()
self.uid = get_uid()
set_uid(1000)
if not self.use_real_fs():
self.setUpPyfakefs()
self.filesystem = self.fs
self.os = os
self.open = open
self.create_basepath()
self.fs.set_disk_usage(1000, self.base_path)
def tearDown(self):
set_uid(self.uid)
RealFsTestMixin.tearDown(self)
@property
def is_windows_fs(self):
if self.use_real_fs():
return sys.platform == "win32"
return self.filesystem.is_windows_fs
class FakeShutilModuleTest(RealFsTestCase):
@unittest.skipIf(is_windows, "Posix specific behavior")
def test_catch_permission_error(self):
root_path = self.make_path("rootpath")
self.create_dir(root_path)
dir1_path = self.os.path.join(root_path, "dir1")
dir2_path = self.os.path.join(root_path, "dir2")
self.create_dir(dir1_path)
self.os.chmod(dir1_path, 0o555) # remove write permissions
self.create_dir(dir2_path)
old_file_path = self.os.path.join(dir2_path, "f1.txt")
new_file_path = self.os.path.join(dir1_path, "f1.txt")
self.create_file(old_file_path)
with self.assertRaises(PermissionError):
shutil.move(old_file_path, new_file_path)
def test_rmtree(self):
directory = self.make_path("xyzzy")
dir_path = os.path.join(directory, "subdir")
self.create_dir(dir_path)
file_path = os.path.join(directory, "subfile")
self.create_file(file_path)
self.assertTrue(os.path.exists(directory))
shutil.rmtree(directory)
self.assertFalse(os.path.exists(directory))
self.assertFalse(os.path.exists(dir_path))
self.assertFalse(os.path.exists(file_path))
def test_rmtree_with_trailing_slash(self):
directory = self.make_path("xyzzy")
dir_path = os.path.join(directory, "subdir")
self.create_dir(dir_path)
file_path = os.path.join(directory, "subfile")
self.create_file(file_path)
shutil.rmtree(directory + "/")
self.assertFalse(os.path.exists(directory))
self.assertFalse(os.path.exists(dir_path))
self.assertFalse(os.path.exists(file_path))
@unittest.skipIf(not is_windows, "Windows specific behavior")
def test_rmtree_without_permission_for_a_file_in_windows(self):
self.check_windows_only()
dir_path = self.make_path("foo")
self.create_file(os.path.join(dir_path, "bar"))
file_path = os.path.join(dir_path, "baz")
self.create_file(file_path)
self.os.chmod(file_path, 0o444)
with self.assertRaises(OSError):
shutil.rmtree(dir_path)
self.assertTrue(os.path.exists(file_path))
self.os.chmod(file_path, 0o666)
@unittest.skipIf(is_windows, "Posix specific behavior")
def test_rmtree_without_permission_for_a_dir_in_posix(self):
self.check_posix_only()
dir_path = self.make_path("foo")
self.create_file(os.path.join(dir_path, "bar"))
file_path = os.path.join(dir_path, "baz")
self.create_file(file_path)
self.os.chmod(dir_path, 0o555)
if not is_root():
with self.assertRaises(OSError):
shutil.rmtree(dir_path)
self.assertTrue(os.path.exists(file_path))
self.os.chmod(dir_path, 0o777)
else:
shutil.rmtree(dir_path)
self.assertFalse(os.path.exists(file_path))
@unittest.skipIf(is_windows, "Posix specific behavior")
def test_rmtree_with_open_file_posix(self):
self.check_posix_only()
dir_path = self.make_path("foo")
self.create_file(os.path.join(dir_path, "bar"))
file_path = os.path.join(dir_path, "baz")
self.create_file(file_path)
with open(file_path):
shutil.rmtree(dir_path)
self.assertFalse(os.path.exists(file_path))
@unittest.skipIf(not is_windows, "Windows specific behavior")
def test_rmtree_with_open_file_fails_under_windows(self):
self.check_windows_only()
dir_path = self.make_path("foo")
self.create_file(os.path.join(dir_path, "bar"))
file_path = os.path.join(dir_path, "baz")
self.create_file(file_path)
with open(file_path):
with self.assertRaises(OSError):
shutil.rmtree(dir_path)
self.assertTrue(os.path.exists(dir_path))
def test_rmtree_non_existing_dir(self):
directory = "nonexisting"
with self.assertRaises(OSError):
shutil.rmtree(directory)
try:
shutil.rmtree(directory, ignore_errors=True)
except OSError:
self.fail("rmtree raised despite ignore_errors True")
def test_rmtree_non_existing_dir_with_handler(self):
class NonLocal:
pass
def error_handler(_, path, _error_info):
NonLocal.errorHandled = True
NonLocal.errorPath = path
directory = self.make_path("nonexisting")
NonLocal.errorHandled = False
NonLocal.errorPath = ""
try:
shutil.rmtree(directory, onerror=error_handler)
except OSError:
self.fail("rmtree raised exception despite onerror defined")
self.assertTrue(NonLocal.errorHandled)
self.assertEqual(NonLocal.errorPath, directory)
NonLocal.errorHandled = False
NonLocal.errorPath = ""
try:
shutil.rmtree(directory, ignore_errors=True, onerror=error_handler)
except OSError:
self.fail("rmtree raised exception despite ignore_errors True")
# ignore_errors is True, so the onerror() error handler was
# not executed
self.assertFalse(NonLocal.errorHandled)
self.assertEqual(NonLocal.errorPath, "")
def test_copy(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
self.create_file(src_file)
os.chmod(src_file, 0o750)
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_file))
shutil.copy(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.assertEqual(os.stat(src_file).st_mode, os.stat(dst_file).st_mode)
def test_copy_directory(self):
src_file = self.make_path("xyzzy")
parent_directory = self.make_path("parent")
dst_file = os.path.join(parent_directory, "xyzzy")
self.create_file(src_file)
self.create_dir(parent_directory)
os.chmod(src_file, 0o750)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(parent_directory))
self.assertFalse(os.path.exists(dst_file))
shutil.copy(src_file, parent_directory)
self.assertTrue(os.path.exists(dst_file))
self.assertEqual(os.stat(src_file).st_mode, os.stat(dst_file).st_mode)
def test_copystat(self):
src_file = self.make_path("xyzzy")
self.create_file(src_file)
os.chmod(src_file, 0o750)
dst_file = self.make_path("xyzzy_copy")
self.create_file(dst_file)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(dst_file))
shutil.copystat(src_file, dst_file)
src_stat = os.stat(src_file)
dst_stat = os.stat(dst_file)
self.assertEqual(src_stat.st_mode, dst_stat.st_mode)
self.assertAlmostEqual(src_stat.st_atime, dst_stat.st_atime, places=2)
self.assertAlmostEqual(src_stat.st_mtime, dst_stat.st_mtime, places=2)
@unittest.skipIf(IS_PYPY, "Functionality not supported in PyPy")
def test_copystat_symlinks(self):
"""Regression test for #799"""
self.skip_if_symlink_not_supported()
f = self.make_path("xyzzy")
self.create_file(f)
sym1 = self.make_path("sym1")
sym2 = self.make_path("sym2")
self.create_symlink(sym1, f)
self.create_symlink(sym2, f)
shutil.copystat(sym1, sym2, follow_symlinks=False)
def test_copy2(self):
src_file = self.make_path("xyzzy")
self.create_file(src_file)
os.chmod(src_file, 0o750)
dst_file = self.make_path("xyzzy_copy")
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_file))
shutil.copy2(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
src_stat = os.stat(src_file)
dst_stat = os.stat(dst_file)
self.assertEqual(src_stat.st_mode, dst_stat.st_mode)
self.assertAlmostEqual(src_stat.st_atime, dst_stat.st_atime, places=2)
self.assertAlmostEqual(src_stat.st_mtime, dst_stat.st_mtime, places=2)
def test_copy2_directory(self):
src_file = self.make_path("xyzzy")
parent_directory = self.make_path("parent")
dst_file = os.path.join(parent_directory, "xyzzy")
self.create_file(src_file)
self.create_dir(parent_directory)
os.chmod(src_file, 0o750)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(parent_directory))
self.assertFalse(os.path.exists(dst_file))
shutil.copy2(src_file, parent_directory)
self.assertTrue(os.path.exists(dst_file))
src_stat = os.stat(src_file)
dst_stat = os.stat(dst_file)
self.assertEqual(src_stat.st_mode, dst_stat.st_mode)
self.assertAlmostEqual(src_stat.st_atime, dst_stat.st_atime, places=2)
self.assertAlmostEqual(src_stat.st_mtime, dst_stat.st_mtime, places=2)
def test_copytree(self):
src_directory = self.make_path("xyzzy")
dst_directory = self.make_path("xyzzy_copy")
self.create_dir(src_directory)
self.create_dir("%s/subdir" % src_directory)
self.create_file(os.path.join(src_directory, "subfile"))
self.assertTrue(os.path.exists(src_directory))
self.assertFalse(os.path.exists(dst_directory))
shutil.copytree(src_directory, dst_directory)
self.assertTrue(os.path.exists(dst_directory))
self.assertTrue(os.path.exists(os.path.join(dst_directory, "subdir")))
self.assertTrue(os.path.exists(os.path.join(dst_directory, "subfile")))
def test_copytree_src_is_file(self):
src_file = self.make_path("xyzzy")
dst_directory = self.make_path("xyzzy_copy")
self.create_file(src_file)
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_directory))
with self.assertRaises(OSError):
shutil.copytree(src_file, dst_directory)
def test_move_file_in_same_filesystem(self):
self.skip_real_fs()
src_file = "/original_xyzzy"
dst_file = "/moved_xyzzy"
src_object = self.fs.create_file(src_file)
src_ino = src_object.st_ino
src_dev = src_object.st_dev
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_file))
shutil.move(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.assertFalse(os.path.exists(src_file))
dst_object = self.fs.get_object(dst_file)
self.assertEqual(src_ino, dst_object.st_ino)
self.assertEqual(src_dev, dst_object.st_dev)
def test_move_file_into_other_filesystem(self):
self.skip_real_fs()
mount_point = self.create_mount_point()
src_file = self.make_path("original_xyzzy")
dst_file = self.os.path.join(mount_point, "moved_xyzzy")
src_object = self.fs.create_file(src_file)
src_ino = src_object.st_ino
src_dev = src_object.st_dev
shutil.move(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.assertFalse(os.path.exists(src_file))
dst_object = self.fs.get_object(dst_file)
self.assertNotEqual(src_ino, dst_object.st_ino)
self.assertNotEqual(src_dev, dst_object.st_dev)
def test_move_file_into_directory(self):
src_file = self.make_path("xyzzy")
dst_directory = self.make_path("directory")
dst_file = os.path.join(dst_directory, "xyzzy")
self.create_file(src_file)
self.create_dir(dst_directory)
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_file))
shutil.move(src_file, dst_directory)
self.assertTrue(os.path.exists(dst_file))
self.assertFalse(os.path.exists(src_file))
def test_move_directory(self):
src_directory = self.make_path("original_xyzzy")
dst_directory = self.make_path("moved_xyzzy")
self.create_dir(src_directory)
self.create_file(os.path.join(src_directory, "subfile"))
self.create_dir(os.path.join(src_directory, "subdir"))
self.assertTrue(os.path.exists(src_directory))
self.assertFalse(os.path.exists(dst_directory))
shutil.move(src_directory, dst_directory)
self.assertTrue(os.path.exists(dst_directory))
self.assertTrue(os.path.exists(os.path.join(dst_directory, "subfile")))
self.assertTrue(os.path.exists(os.path.join(dst_directory, "subdir")))
self.assertFalse(os.path.exists(src_directory))
def test_disk_usage(self):
self.skip_real_fs()
file_path = self.make_path("foo", "bar")
self.fs.create_file(file_path, st_size=400)
disk_usage = shutil.disk_usage(file_path)
self.assertEqual(1000, disk_usage.total)
self.assertEqual(400, disk_usage.used)
self.assertEqual(600, disk_usage.free)
self.assertEqual((1000, 400, 600), disk_usage)
mount_point = self.create_mount_point()
dir_path = self.os.path.join(mount_point, "foo")
file_path = self.os.path.join(dir_path, "bar")
self.fs.create_file(file_path, st_size=400)
disk_usage = shutil.disk_usage(dir_path)
self.assertEqual((500, 400, 100), disk_usage)
def test_disk_usage_with_path(self):
self.skip_real_fs()
file_path = self.make_path("foo", "bar")
self.fs.create_file(file_path, st_size=400)
path = Path(file_path)
disk_usage = shutil.disk_usage(path)
self.assertEqual(1000, disk_usage.total)
self.assertEqual(400, disk_usage.used)
self.assertEqual(600, disk_usage.free)
self.assertEqual((1000, 400, 600), disk_usage)
def create_mount_point(self):
mount_point = "M:" if self.is_windows_fs else "/mount"
self.fs.add_mount_point(mount_point, total_size=500)
return mount_point
class RealShutilModuleTest(FakeShutilModuleTest):
def use_real_fs(self):
return True
class FakeCopyFileTest(RealFsTestCase):
def tearDown(self):
super(FakeCopyFileTest, self).tearDown()
def test_common_case(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
contents = "contents of file"
self.create_file(src_file, contents=contents)
self.assertTrue(os.path.exists(src_file))
self.assertFalse(os.path.exists(dst_file))
shutil.copyfile(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.check_contents(dst_file, contents)
def test_raises_if_source_and_dest_are_the_same_file(self):
src_file = self.make_path("xyzzy")
dst_file = src_file
contents = "contents of file"
self.create_file(src_file, contents=contents)
self.assertTrue(os.path.exists(src_file))
with self.assertRaises(shutil.Error):
shutil.copyfile(src_file, dst_file)
def test_raises_if_dest_is_a_symlink_to_src(self):
self.skip_if_symlink_not_supported()
src_file = self.make_path("foo")
dst_file = self.make_path("bar")
contents = "contents of file"
self.create_file(src_file, contents=contents)
self.create_symlink(dst_file, src_file)
self.assertTrue(os.path.exists(src_file))
with self.assertRaises(shutil.Error):
shutil.copyfile(src_file, dst_file)
def test_succeeds_if_dest_exists_and_is_writable(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
src_contents = "contents of source file"
dst_contents = "contents of dest file"
self.create_file(src_file, contents=src_contents)
self.create_file(dst_file, contents=dst_contents)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(dst_file))
shutil.copyfile(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.check_contents(dst_file, src_contents)
def test_raises_if_dest_exists_and_is_not_writable(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
src_contents = "contents of source file"
dst_contents = "contents of dest file"
self.create_file(src_file, contents=src_contents)
self.create_file(dst_file, contents=dst_contents)
os.chmod(dst_file, 0o400)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(dst_file))
if is_root():
shutil.copyfile(src_file, dst_file)
self.assertTrue(self.os.path.exists(dst_file))
with self.open(dst_file) as f:
self.assertEqual("contents of source file", f.read())
else:
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_file)
os.chmod(dst_file, 0o666)
@unittest.skipIf(is_windows, "Posix specific behavior")
def test_raises_if_dest_dir_is_not_writable_under_posix(self):
self.check_posix_only()
src_file = self.make_path("xyzzy")
dst_dir = self.make_path("tmp", "foo")
dst_file = os.path.join(dst_dir, "xyzzy")
src_contents = "contents of source file"
self.create_file(src_file, contents=src_contents)
self.create_dir(dst_dir)
os.chmod(dst_dir, 0o555)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(dst_dir))
if not is_root():
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_file)
else:
shutil.copyfile(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.check_contents(dst_file, src_contents)
def test_raises_if_src_doesnt_exist(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
self.assertFalse(os.path.exists(src_file))
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_file)
@unittest.skipIf(is_windows, "Posix specific behavior")
def test_raises_if_src_not_readable(self):
self.check_posix_only()
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
src_contents = "contents of source file"
self.create_file(src_file, contents=src_contents)
os.chmod(src_file, 0o000)
self.assertTrue(os.path.exists(src_file))
if not is_root():
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_file)
else:
shutil.copyfile(src_file, dst_file)
self.assertTrue(os.path.exists(dst_file))
self.check_contents(dst_file, src_contents)
def test_raises_if_src_is_a_directory(self):
src_file = self.make_path("xyzzy")
dst_file = self.make_path("xyzzy_copy")
self.create_dir(src_file)
self.assertTrue(os.path.exists(src_file))
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_file)
def test_raises_if_dest_is_a_directory(self):
src_file = self.make_path("xyzzy")
dst_dir = self.make_path("tmp", "foo")
src_contents = "contents of source file"
self.create_file(src_file, contents=src_contents)
self.create_dir(dst_dir)
self.assertTrue(os.path.exists(src_file))
self.assertTrue(os.path.exists(dst_dir))
with self.assertRaises(OSError):
shutil.copyfile(src_file, dst_dir)
def test_moving_dir_into_dir(self):
# regression test for #515
source_dir = tempfile.mkdtemp()
target_dir = tempfile.mkdtemp()
filename = "foo.pdf"
with open(os.path.join(source_dir, filename), "wb") as fp:
fp.write(b"stub")
shutil.move(source_dir, target_dir)
shutil.rmtree(target_dir)
class RealCopyFileTest(FakeCopyFileTest):
def use_real_fs(self):
return True
if __name__ == "__main__":
unittest.main()
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