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# Copyright (c) 2015 Scality
#
# 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
from unittest import mock
from os_brick.initiator import host_driver
from os_brick.tests import base
class HostDriverTestCase(base.TestCase):
def test_get_all_block_devices(self):
fake_dev = ['device1', 'device2']
expected = ['/dev/disk/by-path/' + dev for dev in fake_dev]
driver = host_driver.HostDriver()
with mock.patch('os.listdir', return_value=fake_dev):
actual = driver.get_all_block_devices()
self.assertEqual(expected, actual)
def test_get_all_block_devices_when_oserror_is_enoent(self):
driver = host_driver.HostDriver()
oserror = OSError(errno.ENOENT, "")
with mock.patch('os.listdir', side_effect=oserror):
block_devices = driver.get_all_block_devices()
self.assertEqual([], block_devices)
def test_get_all_block_devices_when_oserror_is_not_enoent(self):
driver = host_driver.HostDriver()
oserror = OSError(errno.ENOMEM, "")
with mock.patch('os.listdir', side_effect=oserror):
self.assertRaises(OSError, driver.get_all_block_devices)
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