Shared filesystem management project for OpenStack.
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# Copyright 2012 NetApp
# Copyright 2014 Mirantis 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 the Share driver module."""
import time
import ddt
import mock
from manila import exception
from manila import network
from manila.share import configuration
from manila.share import driver
from manila import test
from manila.tests import utils as test_utils
from manila import utils
def fake_execute_with_raise(*cmd, **kwargs):
raise exception.ProcessExecutionError
def fake_sleep(duration):
pass
class ShareDriverWithExecuteMixin(driver.ShareDriver, driver.ExecuteMixin):
pass
@ddt.ddt
class ShareDriverTestCase(test.TestCase):
def setUp(self):
super(ShareDriverTestCase, self).setUp()
self.utils = utils
self.mock_object(self.utils, 'execute', fake_execute_with_raise)
self.time = time
self.mock_object(self.time, 'sleep', fake_sleep)
driver.CONF.set_default('driver_handles_share_servers', True)
def test__try_execute(self):
execute_mixin = ShareDriverWithExecuteMixin(
True, configuration=configuration.Configuration(None))
self.assertRaises(exception.ProcessExecutionError,
execute_mixin._try_execute)
def test_verify_share_driver_mode_option_type(self):
data = {'DEFAULT': {'driver_handles_share_servers': 'True'}}
with test_utils.create_temp_config_with_opts(data):
share_driver = driver.ShareDriver([True, False])
self.assertEqual(True, share_driver.driver_handles_share_servers)
def _instantiate_share_driver(self, network_config_group,
driver_handles_share_servers):
self.mock_object(network, 'API')
config = mock.Mock()
config.append_config_values = mock.Mock()
config.config_group = 'fake_config_group'
config.network_config_group = network_config_group
config.safe_get = mock.Mock(return_value=driver_handles_share_servers)
share_driver = driver.ShareDriver([True, False], configuration=config)
self.assertTrue(hasattr(share_driver, 'configuration'))
config.append_config_values.assert_called_once_with(driver.share_opts)
if driver_handles_share_servers:
if network_config_group:
network.API.assert_called_once_with(
config_group_name=config.network_config_group)
else:
network.API.assert_called_once_with(
config_group_name=config.config_group)
else:
self.assertFalse(hasattr(share_driver, 'network_api'))
self.assertFalse(network.API.called)
return share_driver
def test_instantiate_share_driver(self):
self._instantiate_share_driver(None, True)
def test_instantiate_share_driver_another_config_group(self):
self._instantiate_share_driver("fake_network_config_group", True)
def test_instantiate_share_driver_no_configuration(self):
self.mock_object(network, 'API')
share_driver = driver.ShareDriver(True, configuration=None)
self.assertIsNone(share_driver.configuration)
network.API.assert_called_once_with(config_group_name=None)
def test_get_share_stats_refresh_false(self):
share_driver = driver.ShareDriver(True, configuration=None)
share_driver._stats = {'fake_key': 'fake_value'}
result = share_driver.get_share_stats(False)
self.assertEqual(share_driver._stats, result)
def test_get_share_stats_refresh_true(self):
conf = configuration.Configuration(None)
expected_keys = [
'QoS_support', 'driver_version', 'share_backend_name',
'free_capacity_gb', 'total_capacity_gb',
'driver_handles_share_servers',
'reserved_percentage', 'vendor_name', 'storage_protocol',
'snapshot_support',
]
share_driver = driver.ShareDriver(True, configuration=conf)
fake_stats = {'fake_key': 'fake_value'}
share_driver._stats = fake_stats
result = share_driver.get_share_stats(True)
self.assertNotEqual(fake_stats, result)
for key in expected_keys:
self.assertIn(key, result)
self.assertEqual('Open Source', result['vendor_name'])
@ddt.data(
{'opt': True, 'allowed': True},
{'opt': True, 'allowed': (True, False)},
{'opt': True, 'allowed': [True, False]},
{'opt': True, 'allowed': set([True, False])},
{'opt': False, 'allowed': False},
{'opt': False, 'allowed': (True, False)},
{'opt': False, 'allowed': [True, False]},
{'opt': False, 'allowed': set([True, False])})
@ddt.unpack
def test__verify_share_server_handling_valid_cases(self, opt, allowed):
conf = configuration.Configuration(None)
self.mock_object(conf, 'safe_get', mock.Mock(return_value=opt))
share_driver = driver.ShareDriver(allowed, configuration=conf)
self.assertTrue(conf.safe_get.celled)
self.assertEqual(opt, share_driver.driver_handles_share_servers)
@ddt.data(
{'opt': False, 'allowed': True},
{'opt': True, 'allowed': False},
{'opt': None, 'allowed': True},
{'opt': 'True', 'allowed': True},
{'opt': 'False', 'allowed': False},
{'opt': [], 'allowed': True},
{'opt': True, 'allowed': []},
{'opt': True, 'allowed': ['True']},
{'opt': False, 'allowed': ['False']})
@ddt.unpack
def test__verify_share_server_handling_invalid_cases(self, opt, allowed):
conf = configuration.Configuration(None)
self.mock_object(conf, 'safe_get', mock.Mock(return_value=opt))
self.assertRaises(
exception.ManilaException,
driver.ShareDriver, allowed, configuration=conf)
self.assertTrue(conf.safe_get.celled)
def test_setup_server_handling_disabled(self):
share_driver = self._instantiate_share_driver(None, False)
# We expect successful execution, nothing to assert
share_driver.setup_server('Nothing is expected to happen.')
def test_setup_server_handling_enabled(self):
share_driver = self._instantiate_share_driver(None, True)
self.assertRaises(
NotImplementedError,
share_driver.setup_server,
'fake_network_info')
def test_teardown_server_handling_disabled(self):
share_driver = self._instantiate_share_driver(None, False)
# We expect successful execution, nothing to assert
share_driver.teardown_server('Nothing is expected to happen.')
def test_teardown_server_handling_enabled(self):
share_driver = self._instantiate_share_driver(None, True)
self.assertRaises(
NotImplementedError,
share_driver.teardown_server,
'fake_share_server_details')
@ddt.data('manage_existing',
'unmanage')
def test_drivers_methods_needed_by_manage_functionality(self, method):
share_driver = self._instantiate_share_driver(None, False)
def assert_is_callable(obj, attr):
self.assertTrue(callable(getattr(obj, attr)))
assert_is_callable(share_driver, method)
@ddt.data(True, False)
def test_get_share_server_pools(self, value):
driver.CONF.set_default('driver_handles_share_servers', value)
share_driver = driver.ShareDriver(value)
self.assertEqual([],
share_driver.get_share_server_pools('fake_server'))
@ddt.data(0.8, 1.0, 10.5, 20.0, None, '1', '1.1')
def test_check_for_setup_error(self, value):
driver.CONF.set_default('driver_handles_share_servers', False)
share_driver = driver.ShareDriver(False)
share_driver.configuration = configuration.Configuration(None)
self.mock_object(share_driver.configuration, 'safe_get',
mock.Mock(return_value=value))
if value and float(value) >= 1.0:
share_driver.check_for_setup_error()
else:
self.assertRaises(exception.InvalidParameterValue,
share_driver.check_for_setup_error)
def test_snapshot_support_exists(self):
driver.CONF.set_default('driver_handles_share_servers', True)
fake_method = lambda *args, **kwargs: None
child_methods = {
"create_snapshot": fake_method,
"delete_snapshot": fake_method,
"create_share_from_snapshot": fake_method,
}
child_class_instance = type(
"NotRedefined", (driver.ShareDriver, ), child_methods)(True)
self.mock_object(child_class_instance, "configuration")
child_class_instance._update_share_stats()
self.assertEqual(
True, child_class_instance._stats["snapshot_support"])
self.assertTrue(child_class_instance.configuration.safe_get.called)
@ddt.data(
(),
("create_snapshot"),
("delete_snapshot"),
("create_share_from_snapshot"),
("create_snapshot", "delete_snapshot"),
("create_snapshot", "create_share_from_snapshot"),
("delete_snapshot", "create_share_from_snapshot"),
("create_snapshot", "delete_snapshot",
"create_share_from_snapshotFOO"),
("create_snapshot", "delete_snapshot",
"FOOcreate_share_from_snapshot"),
)
def test_snapshot_support_absent(self, methods):
driver.CONF.set_default('driver_handles_share_servers', True)
fake_method = lambda *args, **kwargs: None
child_methods = {}
for method in methods:
child_methods[method] = fake_method
child_class_instance = type(
"NotRedefined", (driver.ShareDriver, ), child_methods)(True)
self.mock_object(child_class_instance, "configuration")
child_class_instance._update_share_stats()
self.assertEqual(
False, child_class_instance._stats["snapshot_support"])
self.assertTrue(child_class_instance.configuration.safe_get.called)
@ddt.data(True, False)
def test_snapshot_support_not_exists_and_set_explicitly(
self, snapshots_are_supported):
driver.CONF.set_default('driver_handles_share_servers', True)
child_class_instance = type(
"NotRedefined", (driver.ShareDriver, ), {})(True)
self.mock_object(child_class_instance, "configuration")
child_class_instance._update_share_stats(
{"snapshot_support": snapshots_are_supported})
self.assertEqual(
snapshots_are_supported,
child_class_instance._stats["snapshot_support"])
self.assertTrue(child_class_instance.configuration.safe_get.called)
@ddt.data(True, False)
def test_snapshot_support_exists_and_set_explicitly(
self, snapshots_are_supported):
driver.CONF.set_default('driver_handles_share_servers', True)
fake_method = lambda *args, **kwargs: None
child_methods = {
"create_snapshot": fake_method,
"delete_snapshot": fake_method,
"create_share_from_snapshot": fake_method,
}
child_class_instance = type(
"NotRedefined", (driver.ShareDriver, ), child_methods)(True)
self.mock_object(child_class_instance, "configuration")
child_class_instance._update_share_stats(
{"snapshot_support": snapshots_are_supported})
self.assertEqual(
snapshots_are_supported,
child_class_instance._stats["snapshot_support"])
self.assertTrue(child_class_instance.configuration.safe_get.called)
def test_get_periodic_hook_data(self):
share_driver = self._instantiate_share_driver(None, False)
share_instances = ["list", "of", "share", "instances"]
result = share_driver.get_periodic_hook_data(
"fake_context", share_instances)
self.assertEqual(share_instances, result)