neutron/neutron/tests/unit/nicira/test_nsx_utils.py

97 lines
4.4 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2013 VMware.
#
# 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.db import api as db_api
from neutron.openstack.common import uuidutils
from neutron.plugins.nicira.common import nsx_utils
from neutron.tests import base
from neutron.tests.unit.nicira import nicira_method
class NsxUtilsTestCase(base.BaseTestCase):
def _mock_db_calls(self, get_switch_port_id_ret_value):
# Mock relevant db calls
# This will allow for avoiding setting up the plugin
# for creating db entries
mock.patch(nicira_method('get_nsx_switch_and_port_id',
module_name='dbexts.nicira_db'),
return_value=get_switch_port_id_ret_value).start()
mock.patch(nicira_method('add_neutron_nsx_port_mapping',
module_name='dbexts.nicira_db')).start()
mock.patch(nicira_method('delete_neutron_nsx_port_mapping',
module_name='dbexts.nicira_db')).start()
self.addCleanup(mock.patch.stopall)
def _verify_get_nsx_switch_and_port_id(self, exp_ls_uuid, exp_lp_uuid):
# The nvplib and db calls are mocked, therefore the cluster
# and the neutron_port_id parameters can be set to None
ls_uuid, lp_uuid = nsx_utils.get_nsx_switch_and_port_id(
db_api.get_session(), None, None)
self.assertEqual(exp_ls_uuid, ls_uuid)
self.assertEqual(exp_lp_uuid, lp_uuid)
def test_get_nsx_switch_and_port_id_from_db_mappings(self):
# This test is representative of the 'standard' case in which both the
# switch and the port mappings were stored in the neutron db
exp_ls_uuid = uuidutils.generate_uuid()
exp_lp_uuid = uuidutils.generate_uuid()
ret_value = exp_ls_uuid, exp_lp_uuid
self._mock_db_calls(ret_value)
self._verify_get_nsx_switch_and_port_id(exp_ls_uuid, exp_lp_uuid)
def test_get_nsx_switch_and_port_id_only_port_db_mapping(self):
# This test is representative of the case in which a port with a nvp
# db mapping in the havana db was upgraded to icehouse
exp_ls_uuid = uuidutils.generate_uuid()
exp_lp_uuid = uuidutils.generate_uuid()
ret_value = None, exp_lp_uuid
self._mock_db_calls(ret_value)
with mock.patch(nicira_method('query_lswitch_lports'),
return_value=[{'uuid': exp_lp_uuid,
'_relations': {
'LogicalSwitchConfig': {
'uuid': exp_ls_uuid}
}}]):
self._verify_get_nsx_switch_and_port_id(exp_ls_uuid, exp_lp_uuid)
def test_get_nsx_switch_and_port_id_no_db_mapping(self):
# This test is representative of the case where db mappings where not
# found for a given port identifier
exp_ls_uuid = uuidutils.generate_uuid()
exp_lp_uuid = uuidutils.generate_uuid()
ret_value = None, None
self._mock_db_calls(ret_value)
with mock.patch(nicira_method('query_lswitch_lports'),
return_value=[{'uuid': exp_lp_uuid,
'_relations': {
'LogicalSwitchConfig': {
'uuid': exp_ls_uuid}
}}]):
self._verify_get_nsx_switch_and_port_id(exp_ls_uuid, exp_lp_uuid)
def test_get_nsx_switch_and_port_id_no_mappings_returns_none(self):
# This test verifies that the function return (None, None) if the
# mappings are not found both in the db and the backend
ret_value = None, None
self._mock_db_calls(ret_value)
with mock.patch(nicira_method('query_lswitch_lports'),
return_value=[]):
self._verify_get_nsx_switch_and_port_id(None, None)