540 lines
22 KiB
Python
540 lines
22 KiB
Python
# Copyright 2014 Cloudbase Solutions Srl
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import contextlib
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import copy
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import os
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import mock
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from cinder import exception
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from cinder.image import image_utils
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from cinder import test
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from cinder.volume.drivers import smbfs
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class SmbFsTestCase(test.TestCase):
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_FAKE_SHARE = '//1.2.3.4/share1'
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_FAKE_MNT_BASE = '/mnt'
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_FAKE_VOLUME_NAME = 'volume-4f711859-4928-4cb7-801a-a50c37ceaccc'
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_FAKE_TOTAL_SIZE = '2048'
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_FAKE_TOTAL_AVAILABLE = '1024'
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_FAKE_TOTAL_ALLOCATED = 1024
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_FAKE_VOLUME = {'id': '4f711859-4928-4cb7-801a-a50c37ceaccc',
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'size': 1,
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'provider_location': _FAKE_SHARE,
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'name': _FAKE_VOLUME_NAME,
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'status': 'available'}
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_FAKE_MNT_POINT = os.path.join(_FAKE_MNT_BASE, 'fake_hash')
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_FAKE_VOLUME_PATH = os.path.join(_FAKE_MNT_POINT, _FAKE_VOLUME_NAME)
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_FAKE_SNAPSHOT_ID = '5g811859-4928-4cb7-801a-a50c37ceacba'
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_FAKE_SNAPSHOT = {'id': _FAKE_SNAPSHOT_ID,
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'volume': _FAKE_VOLUME,
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'status': 'available',
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'volume_size': 1}
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_FAKE_SNAPSHOT_PATH = (
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_FAKE_VOLUME_PATH + '-snapshot' + _FAKE_SNAPSHOT_ID)
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_FAKE_SHARE_OPTS = '-o username=Administrator,password=12345'
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_FAKE_OPTIONS_DICT = {'username': 'Administrator',
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'password': '12345'}
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_FAKE_LISTDIR = [_FAKE_VOLUME_NAME, _FAKE_VOLUME_NAME + '.vhd',
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_FAKE_VOLUME_NAME + '.vhdx', 'fake_folder']
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_FAKE_SMBFS_CONFIG = mock.MagicMock()
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_FAKE_SMBFS_CONFIG.smbfs_oversub_ratio = 2
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_FAKE_SMBFS_CONFIG.smbfs_used_ratio = 0.5
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_FAKE_SMBFS_CONFIG.smbfs_shares_config = '/fake/config/path'
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_FAKE_SMBFS_CONFIG.smbfs_default_volume_format = 'raw'
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_FAKE_SMBFS_CONFIG.smbfs_sparsed_volumes = False
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def setUp(self):
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super(SmbFsTestCase, self).setUp()
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smbfs.SmbfsDriver.__init__ = lambda x: None
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self._smbfs_driver = smbfs.SmbfsDriver()
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self._smbfs_driver._remotefsclient = mock.Mock()
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self._smbfs_driver._local_volume_dir = mock.Mock(
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return_value=self._FAKE_MNT_POINT)
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self._smbfs_driver._execute = mock.Mock()
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self._smbfs_driver.base = self._FAKE_MNT_BASE
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def test_delete_volume(self):
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drv = self._smbfs_driver
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fake_vol_info = self._FAKE_VOLUME_PATH + '.info'
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drv._ensure_share_mounted = mock.MagicMock()
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fake_ensure_mounted = drv._ensure_share_mounted
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drv._local_volume_dir = mock.Mock(
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return_value=self._FAKE_MNT_POINT)
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drv.get_active_image_from_info = mock.Mock(
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return_value=self._FAKE_VOLUME_NAME)
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drv._delete = mock.Mock()
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drv._local_path_volume_info = mock.Mock(
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return_value=fake_vol_info)
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with mock.patch('os.path.exists', lambda x: True):
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drv.delete_volume(self._FAKE_VOLUME)
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fake_ensure_mounted.assert_called_once_with(self._FAKE_SHARE)
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drv._delete.assert_any_call(
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self._FAKE_VOLUME_PATH)
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drv._delete.assert_any_call(fake_vol_info)
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def _test_setup(self, config, share_config_exists=True):
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fake_exists = mock.Mock(return_value=share_config_exists)
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fake_ensure_mounted = mock.MagicMock()
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self._smbfs_driver._ensure_shares_mounted = fake_ensure_mounted
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self._smbfs_driver.configuration = config
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with mock.patch('os.path.exists', fake_exists):
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if not (config.smbfs_shares_config and share_config_exists and
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config.smbfs_oversub_ratio > 0 and
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0 <= config.smbfs_used_ratio <= 1):
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self.assertRaises(exception.SmbfsException,
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self._smbfs_driver.do_setup,
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None)
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else:
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self._smbfs_driver.do_setup(None)
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self.assertEqual(self._smbfs_driver.shares, {})
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fake_ensure_mounted.assert_called_once()
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def test_setup_missing_shares_config_option(self):
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fake_config = copy.copy(self._FAKE_SMBFS_CONFIG)
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fake_config.smbfs_shares_config = None
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self._test_setup(fake_config, None)
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def test_setup_missing_shares_config_file(self):
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self._test_setup(self._FAKE_SMBFS_CONFIG, False)
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def test_setup_invlid_oversub_ratio(self):
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fake_config = copy.copy(self._FAKE_SMBFS_CONFIG)
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fake_config.smbfs_oversub_ratio = -1
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self._test_setup(fake_config)
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def test_setup_invalid_used_ratio(self):
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fake_config = copy.copy(self._FAKE_SMBFS_CONFIG)
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fake_config.smbfs_used_ratio = -1
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self._test_setup(fake_config)
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def _test_create_volume(self, volume_exists=False, volume_format=None):
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fake_method = mock.MagicMock()
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self._smbfs_driver.configuration = copy.copy(self._FAKE_SMBFS_CONFIG)
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self._smbfs_driver._set_rw_permissions_for_all = mock.MagicMock()
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fake_set_permissions = self._smbfs_driver._set_rw_permissions_for_all
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self._smbfs_driver.get_volume_format = mock.MagicMock()
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windows_image_format = False
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fake_vol_path = self._FAKE_VOLUME_PATH
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self._smbfs_driver.get_volume_format.return_value = volume_format
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if volume_format:
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if volume_format in ('vhd', 'vhdx'):
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windows_image_format = volume_format
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if volume_format == 'vhd':
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windows_image_format = 'vpc'
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method = '_create_windows_image'
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fake_vol_path += '.' + volume_format
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else:
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method = '_create_%s_file' % volume_format
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if volume_format == 'sparsed':
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self._smbfs_driver.configuration.smbfs_sparsed_volumes = (
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True)
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else:
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method = '_create_regular_file'
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setattr(self._smbfs_driver, method, fake_method)
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with mock.patch('os.path.exists', new=lambda x: volume_exists):
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if volume_exists:
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self.assertRaises(exception.InvalidVolume,
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self._smbfs_driver._do_create_volume,
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self._FAKE_VOLUME)
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return
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self._smbfs_driver._do_create_volume(self._FAKE_VOLUME)
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if windows_image_format:
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fake_method.assert_called_once_with(
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fake_vol_path,
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self._FAKE_VOLUME['size'],
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windows_image_format)
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else:
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fake_method.assert_called_once_with(
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fake_vol_path, self._FAKE_VOLUME['size'])
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fake_set_permissions.assert_called_once_with(fake_vol_path)
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def test_create_existing_volume(self):
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self._test_create_volume(volume_exists=True)
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def test_create_vhdx(self):
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self._test_create_volume(volume_format='vhdx')
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def test_create_qcow2(self):
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self._test_create_volume(volume_format='qcow2')
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def test_create_sparsed(self):
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self._test_create_volume(volume_format='sparsed')
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def test_create_regular(self):
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self._test_create_volume()
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def _test_find_share(self, existing_mounted_shares=True,
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eligible_shares=True):
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if existing_mounted_shares:
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mounted_shares = ('fake_share1', 'fake_share2', 'fake_share3')
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else:
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mounted_shares = None
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self._smbfs_driver._mounted_shares = mounted_shares
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self._smbfs_driver._is_share_eligible = mock.Mock(
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return_value=eligible_shares)
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fake_capacity_info = ((2, 1, 5), (2, 1, 4), (2, 1, 1))
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self._smbfs_driver._get_capacity_info = mock.Mock(
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side_effect=fake_capacity_info)
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if not mounted_shares:
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self.assertRaises(exception.SmbfsNoSharesMounted,
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self._smbfs_driver._find_share,
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self._FAKE_VOLUME['size'])
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elif not eligible_shares:
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self.assertRaises(exception.SmbfsNoSuitableShareFound,
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self._smbfs_driver._find_share,
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self._FAKE_VOLUME['size'])
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else:
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ret_value = self._smbfs_driver._find_share(
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self._FAKE_VOLUME['size'])
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# The eligible share with the minimum allocated space
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# will be selected
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self.assertEqual(ret_value, 'fake_share3')
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def test_find_share(self):
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self._test_find_share()
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def test_find_share_missing_mounted_shares(self):
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self._test_find_share(existing_mounted_shares=False)
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def test_find_share_missing_eligible_shares(self):
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self._test_find_share(eligible_shares=False)
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def _test_is_share_eligible(self, capacity_info, volume_size):
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self._smbfs_driver._get_capacity_info = mock.Mock(
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return_value=[float(x << 30) for x in capacity_info])
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self._smbfs_driver.configuration = self._FAKE_SMBFS_CONFIG
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return self._smbfs_driver._is_share_eligible(self._FAKE_SHARE,
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volume_size)
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def test_share_volume_above_used_ratio(self):
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fake_capacity_info = (4, 1, 1)
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fake_volume_size = 2
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ret_value = self._test_is_share_eligible(fake_capacity_info,
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fake_volume_size)
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self.assertEqual(ret_value, False)
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def test_eligible_share(self):
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fake_capacity_info = (4, 4, 0)
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fake_volume_size = 1
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ret_value = self._test_is_share_eligible(fake_capacity_info,
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fake_volume_size)
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self.assertEqual(ret_value, True)
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def test_share_volume_above_oversub_ratio(self):
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fake_capacity_info = (4, 4, 7)
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fake_volume_size = 2
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ret_value = self._test_is_share_eligible(fake_capacity_info,
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fake_volume_size)
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self.assertEqual(ret_value, False)
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def test_share_reserved_above_oversub_ratio(self):
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fake_capacity_info = (4, 4, 10)
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fake_volume_size = 1
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ret_value = self._test_is_share_eligible(fake_capacity_info,
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fake_volume_size)
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self.assertEqual(ret_value, False)
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def test_parse_options(self):
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(opt_list,
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opt_dict) = self._smbfs_driver.parse_options(
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self._FAKE_SHARE_OPTS)
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expected_ret = ([], self._FAKE_OPTIONS_DICT)
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self.assertEqual(expected_ret, (opt_list, opt_dict))
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def test_parse_credentials(self):
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fake_smb_options = r'-o user=MyDomain\Administrator,noperm'
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expected_flags = '-o username=Administrator,noperm'
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flags = self._smbfs_driver.parse_credentials(fake_smb_options)
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self.assertEqual(expected_flags, flags)
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def test_get_volume_path(self):
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self._smbfs_driver.get_volume_format = mock.Mock(
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return_value='vhd')
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self._smbfs_driver._local_volume_dir = mock.Mock(
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return_value=self._FAKE_MNT_POINT)
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expected = self._FAKE_VOLUME_PATH + '.vhd'
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ret_val = self._smbfs_driver.local_path(self._FAKE_VOLUME)
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self.assertEqual(expected, ret_val)
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def test_initialize_connection(self):
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self._smbfs_driver.get_active_image_from_info = mock.Mock(
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return_value=self._FAKE_VOLUME_NAME)
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self._smbfs_driver._get_mount_point_base = mock.Mock(
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return_value=self._FAKE_MNT_BASE)
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self._smbfs_driver.shares = {self._FAKE_SHARE: self._FAKE_SHARE_OPTS}
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self._smbfs_driver._qemu_img_info = mock.Mock(
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return_value=mock.Mock(file_format='raw'))
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fake_data = {'export': self._FAKE_SHARE,
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'format': 'raw',
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'name': self._FAKE_VOLUME_NAME,
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'options': self._FAKE_SHARE_OPTS}
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expected = {
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'driver_volume_type': 'smbfs',
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'data': fake_data,
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'mount_point_base': self._FAKE_MNT_BASE}
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ret_val = self._smbfs_driver.initialize_connection(
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self._FAKE_VOLUME, None)
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self.assertEqual(expected, ret_val)
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def _test_extend_volume(self, extend_failed=False, image_format='raw'):
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drv = self._smbfs_driver
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drv.local_path = mock.Mock(
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return_value=self._FAKE_VOLUME_PATH)
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drv._check_extend_volume_support = mock.Mock(
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return_value=True)
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drv._is_file_size_equal = mock.Mock(
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return_value=not extend_failed)
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drv._qemu_img_info = mock.Mock(
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return_value=mock.Mock(file_format=image_format))
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with contextlib.nested(
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mock.patch.object(image_utils, 'resize_image'),
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mock.patch.object(image_utils, 'convert_image')) as (
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fake_resize, fake_convert):
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if extend_failed:
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self.assertRaises(exception.ExtendVolumeError,
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drv._extend_volume,
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self._FAKE_VOLUME, mock.sentinel.new_size)
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else:
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drv._extend_volume(
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self._FAKE_VOLUME,
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mock.sentinel.new_size)
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if image_format in (drv._DISK_FORMAT_VHDX,
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drv._DISK_FORMAT_VHD_LEGACY):
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fake_tmp_path = self._FAKE_VOLUME_PATH + '.tmp'
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fake_convert.assert_any_call(self._FAKE_VOLUME_PATH,
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fake_tmp_path, 'raw')
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fake_resize.assert_called_once_with(
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fake_tmp_path, mock.sentinel.new_size)
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fake_convert.assert_any_call(fake_tmp_path,
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self._FAKE_VOLUME_PATH,
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image_format)
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else:
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fake_resize.assert_called_once_with(
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self._FAKE_VOLUME_PATH, mock.sentinel.new_size)
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def test_extend_volume(self):
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self._test_extend_volume()
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def test_extend_volume_failed(self):
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self._test_extend_volume(extend_failed=True)
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def test_extend_vhd_volume(self):
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self._test_extend_volume(image_format='vpc')
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def _test_check_extend_support(self, has_snapshots=False,
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is_eligible=True):
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self._smbfs_driver.local_path = mock.Mock(
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return_value=self._FAKE_VOLUME_PATH)
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if has_snapshots:
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active_file_path = self._FAKE_SNAPSHOT_PATH
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else:
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active_file_path = self._FAKE_VOLUME_PATH
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self._smbfs_driver.get_active_image_from_info = mock.Mock(
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return_value=active_file_path)
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self._smbfs_driver._is_share_eligible = mock.Mock(
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return_value=is_eligible)
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if has_snapshots:
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self.assertRaises(exception.InvalidVolume,
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self._smbfs_driver._check_extend_volume_support,
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self._FAKE_VOLUME, 2)
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elif not is_eligible:
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self.assertRaises(exception.ExtendVolumeError,
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self._smbfs_driver._check_extend_volume_support,
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self._FAKE_VOLUME, 2)
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else:
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self._smbfs_driver._check_extend_volume_support(
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self._FAKE_VOLUME, 2)
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self._smbfs_driver._is_share_eligible.assert_called_once_with(
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self._FAKE_SHARE, 1)
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def test_check_extend_support(self):
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self._test_check_extend_support()
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def test_check_extend_volume_with_snapshots(self):
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self._test_check_extend_support(has_snapshots=True)
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def test_check_extend_volume_uneligible_share(self):
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self._test_check_extend_support(is_eligible=False)
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def test_create_volume_from_in_use_snapshot(self):
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fake_snapshot = {'status': 'in-use'}
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self.assertRaises(
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exception.InvalidSnapshot,
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self._smbfs_driver.create_volume_from_snapshot,
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self._FAKE_VOLUME, fake_snapshot)
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def test_copy_volume_from_snapshot(self):
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drv = self._smbfs_driver
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fake_volume_info = {self._FAKE_SNAPSHOT_ID: 'fake_snapshot_file_name'}
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fake_img_info = mock.MagicMock()
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fake_img_info.backing_file = self._FAKE_VOLUME_NAME
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drv.get_volume_format = mock.Mock(
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return_value='raw')
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drv._local_path_volume_info = mock.Mock(
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return_value=self._FAKE_VOLUME_PATH + '.info')
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drv._local_volume_dir = mock.Mock(
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return_value=self._FAKE_MNT_POINT)
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drv._read_info_file = mock.Mock(
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return_value=fake_volume_info)
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drv._qemu_img_info = mock.Mock(
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return_value=fake_img_info)
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drv.local_path = mock.Mock(
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return_value=self._FAKE_VOLUME_PATH[:-1])
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drv._extend_volume = mock.Mock()
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drv._set_rw_permissions_for_all = mock.Mock()
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with mock.patch.object(image_utils, 'convert_image') as (
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fake_convert_image):
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drv._copy_volume_from_snapshot(
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self._FAKE_SNAPSHOT, self._FAKE_VOLUME,
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self._FAKE_VOLUME['size'])
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drv._extend_volume.assert_called_once_with(
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self._FAKE_VOLUME, self._FAKE_VOLUME['size'])
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fake_convert_image.assert_called_once_with(
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self._FAKE_VOLUME_PATH, self._FAKE_VOLUME_PATH[:-1], 'raw')
|
|
|
|
def test_ensure_mounted(self):
|
|
self._smbfs_driver.shares = {self._FAKE_SHARE: self._FAKE_SHARE_OPTS}
|
|
|
|
self._smbfs_driver._ensure_share_mounted(self._FAKE_SHARE)
|
|
self._smbfs_driver._remotefsclient.mount.assert_called_once_with(
|
|
self._FAKE_SHARE, self._FAKE_SHARE_OPTS.split())
|
|
|
|
def _test_copy_image_to_volume(self, unsupported_qemu_version=False,
|
|
wrong_size_after_fetch=False):
|
|
drv = self._smbfs_driver
|
|
|
|
vol_size_bytes = self._FAKE_VOLUME['size'] << 30
|
|
fake_image_service = mock.MagicMock()
|
|
fake_image_service.show.return_value = (
|
|
{'id': 'fake_image_id', 'disk_format': 'raw'})
|
|
|
|
fake_img_info = mock.MagicMock()
|
|
|
|
if wrong_size_after_fetch:
|
|
fake_img_info.virtual_size = 2 * vol_size_bytes
|
|
else:
|
|
fake_img_info.virtual_size = vol_size_bytes
|
|
|
|
if unsupported_qemu_version:
|
|
qemu_version = [1, 5]
|
|
else:
|
|
qemu_version = [1, 7]
|
|
|
|
drv.get_volume_format = mock.Mock(
|
|
return_value=drv._DISK_FORMAT_VHDX)
|
|
drv.local_path = mock.Mock(
|
|
return_value=self._FAKE_VOLUME_PATH)
|
|
drv.get_qemu_version = mock.Mock(
|
|
return_value=qemu_version)
|
|
drv._do_extend_volume = mock.Mock()
|
|
drv.configuration = mock.MagicMock()
|
|
drv.configuration.volume_dd_blocksize = (
|
|
mock.sentinel.block_size)
|
|
|
|
exc = None
|
|
with contextlib.nested(
|
|
mock.patch.object(image_utils,
|
|
'fetch_to_volume_format'),
|
|
mock.patch.object(image_utils,
|
|
'qemu_img_info')) as (
|
|
fake_fetch,
|
|
fake_qemu_img_info):
|
|
|
|
if wrong_size_after_fetch:
|
|
exc = exception.ImageUnacceptable
|
|
elif unsupported_qemu_version:
|
|
exc = exception.InvalidVolume
|
|
|
|
fake_qemu_img_info.return_value = fake_img_info
|
|
|
|
if exc:
|
|
self.assertRaises(
|
|
exc, drv.copy_image_to_volume,
|
|
mock.sentinel.context, self._FAKE_VOLUME,
|
|
fake_image_service,
|
|
mock.sentinel.image_id)
|
|
else:
|
|
drv.copy_image_to_volume(
|
|
mock.sentinel.context, self._FAKE_VOLUME,
|
|
fake_image_service,
|
|
mock.sentinel.image_id)
|
|
fake_fetch.assert_called_once_with(
|
|
mock.sentinel.context, fake_image_service,
|
|
mock.sentinel.image_id, self._FAKE_VOLUME_PATH,
|
|
drv._DISK_FORMAT_VHDX,
|
|
mock.sentinel.block_size)
|
|
drv._do_extend_volume.assert_called_once_with(
|
|
self._FAKE_VOLUME_PATH,
|
|
self._FAKE_VOLUME['size'],
|
|
self._FAKE_VOLUME['name'])
|
|
|
|
def test_copy_image_to_volume(self):
|
|
self._test_copy_image_to_volume()
|
|
|
|
def test_copy_image_to_volume_wrong_size_after_fetch(self):
|
|
self._test_copy_image_to_volume(wrong_size_after_fetch=True)
|
|
|
|
def test_copy_image_to_volume_unsupported_qemu_version(self):
|
|
self._test_copy_image_to_volume(unsupported_qemu_version=True)
|
|
|
|
def test_get_capacity_info(self):
|
|
fake_block_size = 4096.0
|
|
fake_total_blocks = 1024
|
|
fake_avail_blocks = 512
|
|
fake_total_allocated = fake_total_blocks * fake_block_size
|
|
|
|
fake_df = ('%s %s %s' % (fake_block_size, fake_total_blocks,
|
|
fake_avail_blocks), None)
|
|
fake_du = (str(fake_total_allocated), None)
|
|
|
|
self._smbfs_driver._get_mount_point_for_share = mock.Mock(
|
|
return_value=self._FAKE_MNT_POINT)
|
|
self._smbfs_driver._execute = mock.Mock(
|
|
side_effect=(fake_df, fake_du))
|
|
|
|
ret_val = self._smbfs_driver._get_capacity_info(self._FAKE_SHARE)
|
|
expected = (fake_block_size * fake_total_blocks,
|
|
fake_block_size * fake_avail_blocks,
|
|
fake_total_allocated)
|
|
self.assertEqual(expected, ret_val)
|