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neutron/neutron/tests/unit/services/l3_router/service_providers/test_driver_controller.py

201 lines
9.6 KiB

# 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.
import mock
from neutron_lib.callbacks import events
from neutron_lib import constants
from neutron_lib import context
from neutron_lib import exceptions as lib_exc
from neutron_lib.plugins import constants as p_cons
from neutron_lib.plugins import directory
from oslo_utils import uuidutils
import testtools
from neutron.services.l3_router.service_providers import driver_controller
from neutron.services import provider_configuration
from neutron.tests import base
from neutron.tests.unit import testlib_api
DB_PLUGIN_KLASS = 'neutron.db.db_base_plugin_v2.NeutronDbPluginV2'
class TestDriverController(testlib_api.SqlTestCase):
def setUp(self):
super(TestDriverController, self).setUp()
self.setup_coreplugin(DB_PLUGIN_KLASS)
self.fake_l3 = mock.Mock()
self.dc = driver_controller.DriverController(self.fake_l3)
self.fake_l3.l3_driver_controller = self.dc
self.ctx = context.get_admin_context()
def _return_provider_for_flavor(self, provider):
self.dc._flavor_plugin_ref = mock.Mock()
self.dc._flavor_plugin_ref.get_flavor.return_value = {'id': 'abc'}
provider = {'provider': provider}
self.dc._flavor_plugin_ref.get_flavor_next_provider.return_value = [
provider]
def test_uses_scheduler(self):
self._return_provider_for_flavor('dvrha')
router_db = mock.Mock()
flavor_id = uuidutils.generate_uuid()
router_id = uuidutils.generate_uuid()
router = dict(id=router_id, flavor_id=flavor_id)
self.dc._set_router_provider('router', 'PRECOMMIT_CREATE', self,
self.ctx, router, router_db)
self.assertTrue(self.dc.uses_scheduler(self.ctx, router_id))
self.dc.drivers['dvrha'].use_integrated_agent_scheduler = False
self.assertFalse(self.dc.uses_scheduler(self.ctx, router_id))
def test_driver_owns_router(self):
self._return_provider_for_flavor('dvrha')
router_db = mock.Mock()
flavor_id = uuidutils.generate_uuid()
r1 = uuidutils.generate_uuid()
r2 = uuidutils.generate_uuid()
router = dict(id=r1, flavor_id=flavor_id)
self.dc._set_router_provider('router', 'PRECOMMIT_CREATE', self,
self.ctx, router, router_db)
self.assertTrue(self.dc.drivers['dvrha'].owns_router(self.ctx, r1))
self.assertFalse(self.dc.drivers['dvr'].owns_router(self.ctx, r1))
self.assertFalse(self.dc.drivers['dvr'].owns_router(self.ctx, r2))
self.assertFalse(self.dc.drivers['dvr'].owns_router(self.ctx, None))
def test__set_router_provider_flavor_specified(self):
self._return_provider_for_flavor('dvrha')
router_db = mock.Mock()
flavor_id = uuidutils.generate_uuid()
router_id = uuidutils.generate_uuid()
router = dict(id=router_id, flavor_id=flavor_id)
self.dc._set_router_provider('router', 'PRECOMMIT_CREATE', self,
self.ctx, router, router_db)
self.assertEqual(flavor_id, router_db.flavor_id)
self.assertEqual(self.dc.drivers['dvrha'],
self.dc.get_provider_for_router(self.ctx,
router_id))
def test__update_router_provider_invalid(self):
test_dc = driver_controller.DriverController(self.fake_l3)
with mock.patch.object(test_dc, "get_provider_for_router"):
with mock.patch.object(
driver_controller,
"_ensure_driver_supports_request") as _ensure:
_ensure.side_effect = lib_exc.InvalidInput(
error_message='message')
self.assertRaises(
lib_exc.InvalidInput,
test_dc._update_router_provider,
None, None, None,
payload=events.DBEventPayload(
None, request_body={'name': 'testname'},
states=({'flavor_id': 'old_fid'},)))
def test__update_router_provider_with_flags(self):
test_dc = driver_controller.DriverController(self.fake_l3)
with mock.patch.object(test_dc, "get_provider_for_router"):
with mock.patch.object(
driver_controller,
"_ensure_driver_supports_request") as _ensure:
_ensure.side_effect = lib_exc.InvalidInput(
error_message='message')
with mock.patch(
"neutron.services.l3_router.service_providers."
"driver_controller.LOG.debug") as mock_log:
self.assertRaises(
lib_exc.InvalidInput,
test_dc._update_router_provider,
None, None, None,
payload=events.DBEventPayload(
None, request_body={'name': 'testname',
'distributed': False},
states=({'flavor_id': None,
'distributed': True, 'ha': False},)))
# To validate that the 'ha' attribute of the router
# stays unchanged from the previous state while
# updating 'distributed' from True to False.
mock_log.assert_any_call(
"Get a provider driver handle based on the ha "
"flag: %(ha_flag)s and distributed flag: "
"%(distributed_flag)s",
{'ha_flag': False, 'distributed_flag': False})
def test__set_router_provider_attr_lookups(self):
# ensure correct drivers are looked up based on attrs
router_id1 = uuidutils.generate_uuid()
router_id2 = uuidutils.generate_uuid()
router_id3 = uuidutils.generate_uuid()
router_id4 = uuidutils.generate_uuid()
router_id5 = uuidutils.generate_uuid()
router_id6 = uuidutils.generate_uuid()
router_id7 = uuidutils.generate_uuid()
router_id8 = uuidutils.generate_uuid()
router_id9 = uuidutils.generate_uuid()
cases = [
('dvrha', dict(id=router_id1, distributed=True, ha=True)),
('dvr', dict(id=router_id2, distributed=True, ha=False)),
('ha', dict(id=router_id3, distributed=False, ha=True)),
('single_node', dict(id=router_id4, distributed=False,
ha=False)),
('ha', dict(id=router_id5, ha=True,
distributed=constants.ATTR_NOT_SPECIFIED)),
('dvr', dict(id=router_id6, distributed=True,
ha=constants.ATTR_NOT_SPECIFIED)),
('single_node', dict(id=router_id7, ha=False,
distributed=constants.ATTR_NOT_SPECIFIED)),
('single_node', dict(id=router_id8, distributed=False,
ha=constants.ATTR_NOT_SPECIFIED)),
('single_node', dict(id=router_id9,
distributed=constants.ATTR_NOT_SPECIFIED,
ha=constants.ATTR_NOT_SPECIFIED)),
]
for driver, body in cases:
self.dc._set_router_provider('router', 'PRECOMMIT_CREATE', self,
self.ctx, body, mock.Mock())
self.assertEqual(self.dc.drivers[driver],
self.dc.get_provider_for_router(self.ctx,
body['id']),
'Expecting %s for body %s' % (driver, body))
def test__clear_router_provider(self):
# ensure correct drivers are looked up based on attrs
router_id1 = uuidutils.generate_uuid()
body = dict(id=router_id1, distributed=True, ha=True)
self.dc._set_router_provider('router', 'PRECOMMIT_CREATE', self,
self.ctx, body, mock.Mock())
self.assertEqual(self.dc.drivers['dvrha'],
self.dc.get_provider_for_router(self.ctx,
body['id']))
self.dc._clear_router_provider('router', 'PRECOMMIT_DELETE', self,
self.ctx, body['id'])
with testtools.ExpectedException(ValueError):
# if association was cleared, get_router will be called
self.fake_l3.get_router.side_effect = ValueError
self.dc.get_provider_for_router(self.ctx, body['id'])
def test__flavor_plugin(self):
directory.add_plugin(p_cons.FLAVORS, mock.Mock())
_dc = driver_controller.DriverController(self.fake_l3)
self.assertEqual(
directory.get_plugin(p_cons.FLAVORS), _dc._flavor_plugin)
class Test_LegacyPlusProviderConfiguration(base.BaseTestCase):
@mock.patch.object(provider_configuration.ProviderConfiguration,
"add_provider")
def test__update_router_provider_invalid(self, mock_method):
mock_method.side_effect = lib_exc.Invalid(message='message')
driver_controller._LegacyPlusProviderConfiguration()