vmware-nsx/neutron/tests/unit/ml2/test_port_binding.py
Salvatore Orlando 2d216389bb Do not trigger agent notification if bindings do not change
The method _process_port_bindings for the ml2 plugin should not
return True when the host binding does not change, otherwise an
unnecessary notification will be sent to the agent

Closes-Bug: #1255680
Related-Bug: #1253896
Partially Implements: neutron-tempest-parallel

Change-Id: I8a40090af347ca430ff6c8e2211fa34bb2bd0f8c
2013-12-11 05:24:55 -08:00

122 lines
5.1 KiB
Python

# Copyright (c) 2013 OpenStack Foundation
# 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 import context
from neutron.extensions import portbindings
from neutron import manager
from neutron.plugins.ml2 import config as config
from neutron.tests.unit import test_db_plugin as test_plugin
PLUGIN_NAME = 'neutron.plugins.ml2.plugin.Ml2Plugin'
class PortBindingTestCase(test_plugin.NeutronDbPluginV2TestCase):
_plugin_name = PLUGIN_NAME
def setUp(self):
# Enable the test mechanism driver to ensure that
# we can successfully call through to all mechanism
# driver apis.
config.cfg.CONF.set_override('mechanism_drivers',
['logger', 'test'],
'ml2')
self.addCleanup(config.cfg.CONF.reset)
super(PortBindingTestCase, self).setUp(PLUGIN_NAME)
self.port_create_status = 'DOWN'
self.plugin = manager.NeutronManager.get_plugin()
def _check_response(self, port, vif_type, has_port_filter):
self.assertEqual(port['binding:vif_type'], vif_type)
port_cap = port[portbindings.CAPABILITIES]
self.assertEqual(port_cap[portbindings.CAP_PORT_FILTER],
has_port_filter)
def _test_port_binding(self, host, vif_type, has_port_filter, bound):
host_arg = {portbindings.HOST_ID: host}
with self.port(name='name', arg_list=(portbindings.HOST_ID,),
**host_arg) as port:
self._check_response(port['port'], vif_type, has_port_filter)
port_id = port['port']['id']
details = self.plugin.callbacks.get_device_details(
None, agent_id="theAgentId", device=port_id)
if bound:
self.assertEqual(details['network_type'], 'local')
else:
self.assertNotIn('network_type', details)
def test_unbound(self):
self._test_port_binding("",
portbindings.VIF_TYPE_UNBOUND,
False, False)
def test_binding_failed(self):
self._test_port_binding("host-fail",
portbindings.VIF_TYPE_BINDING_FAILED,
False, False)
def test_binding_no_filter(self):
self._test_port_binding("host-ovs-no_filter",
portbindings.VIF_TYPE_OVS,
False, True)
def test_binding_filter(self):
self._test_port_binding("host-bridge-filter",
portbindings.VIF_TYPE_BRIDGE,
True, True)
def _test_update_port_binding(self, host, new_host=None):
with mock.patch.object(self.plugin,
'_notify_port_updated') as notify_mock:
host_arg = {portbindings.HOST_ID: host}
update_body = {'name': 'test_update'}
if new_host is not None:
update_body[portbindings.HOST_ID] = new_host
with self.port(name='name', arg_list=(portbindings.HOST_ID,),
**host_arg) as port:
neutron_context = context.get_admin_context()
updated_port = self._update('ports', port['port']['id'],
{'port': update_body},
neutron_context=neutron_context)
port_data = updated_port['port']
if new_host is not None:
self.assertEqual(port_data['binding:host_id'], new_host)
else:
self.assertEqual(port_data['binding:host_id'], host)
if new_host is not None and new_host != host:
notify_mock.assert_called_once_with(mock.ANY)
else:
self.assertFalse(notify_mock.called)
def test_update_with_new_host_binding_notifies_agent(self):
self._test_update_port_binding('host-ovs-no-filter',
'host-bridge-no-filter')
def test_update_with_same_host_binding_does_not_notify(self):
self._test_update_port_binding('host-ovs-no-filter',
'host-ovs-no-filter')
def test_update_without_binding_does_not_notify(self):
self._test_update_port_binding('host-ovs-no-filter')
def testt_update_from_empty_to_host_binding_notifies_agent(self):
self._test_update_port_binding('', 'host-ovs-no-filter')
def test_update_from_host_to_empty_binding_notifies_agent(self):
self._test_update_port_binding('host-ovs-no-filter', '')