neutron-lib/neutron_lib/tests/unit/utils/test_file.py

82 lines
2.7 KiB
Python

# 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.
import errno
import os.path
import stat
import mock
from neutron_lib.tests import _base as base
from neutron_lib.utils import file
class TestEnsureDir(base.BaseTestCase):
@mock.patch('os.makedirs')
def test_ensure_dir_no_fail_if_exists(self, makedirs):
error = OSError()
error.errno = errno.EEXIST
makedirs.side_effect = error
file.ensure_dir("/etc/create/concurrently")
@mock.patch('os.makedirs')
def test_ensure_dir_oserr(self, makedirs):
error = OSError()
error.errno = errno.EPERM
makedirs.side_effect = error
self.assertRaises(OSError,
file.ensure_dir,
"/etc/create/directory")
makedirs.assert_called_once_with("/etc/create/directory", 0o755)
@mock.patch('os.makedirs')
def test_ensure_dir_calls_makedirs(self, makedirs):
file.ensure_dir("/etc/create/directory")
makedirs.assert_called_once_with("/etc/create/directory", 0o755)
class TestReplaceFile(base.BaseTestCase):
def setUp(self):
super(TestReplaceFile, self).setUp()
temp_dir = self.get_default_temp_dir().path
self.file_name = os.path.join(temp_dir, "new_file")
self.data = "data to copy"
def _verify_result(self, file_mode):
self.assertTrue(os.path.exists(self.file_name))
with open(self.file_name) as f:
content = f.read()
self.assertEqual(self.data, content)
mode = os.stat(self.file_name).st_mode
self.assertEqual(file_mode, stat.S_IMODE(mode))
def test_replace_file_default_mode(self):
file_mode = 0o644
file.replace_file(self.file_name, self.data)
self._verify_result(file_mode)
def test_replace_file_custom_mode(self):
file_mode = 0o722
file.replace_file(self.file_name, self.data, file_mode)
self._verify_result(file_mode)
def test_replace_file_custom_mode_twice(self):
file_mode = 0o722
file.replace_file(self.file_name, self.data, file_mode)
self.data = "new data to copy"
file_mode = 0o777
file.replace_file(self.file_name, self.data, file_mode)
self._verify_result(file_mode)