92 lines
3.5 KiB
Python
92 lines
3.5 KiB
Python
# Copyright (c) 2015 Rackspace
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# All Rights Reserved.
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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 mock
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from oslo_config import cfg
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from oslo_utils import uuidutils
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from neutron.agent.l3 import dvr_snat_ns
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from neutron.agent.l3 import namespace_manager
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from neutron.agent.l3 import namespaces
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from neutron.agent.linux import ip_lib
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from neutron.tests.functional import base
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_uuid = uuidutils.generate_uuid
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class NamespaceManagerTestFramework(base.BaseSudoTestCase):
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def setUp(self):
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super(NamespaceManagerTestFramework, self).setUp()
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self.agent_conf = cfg.CONF
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self.metadata_driver_mock = mock.Mock()
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self.namespace_manager = namespace_manager.NamespaceManager(
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self.agent_conf, driver=None,
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metadata_driver=self.metadata_driver_mock)
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def _create_namespace(self, router_id, ns_class):
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namespace = ns_class(router_id, self.agent_conf, driver=None,
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use_ipv6=False)
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namespace.create()
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self.addCleanup(self._delete_namespace, namespace)
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return namespace.name
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def _delete_namespace(self, namespace):
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try:
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namespace.delete()
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except RuntimeError as e:
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# If the namespace didn't exist when delete was attempted, mission
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# accomplished. Otherwise, re-raise the exception
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if 'No such file or directory' not in str(e):
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raise e
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def _namespace_exists(self, namespace):
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ip = ip_lib.IPWrapper(namespace=namespace)
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return ip.netns.exists(namespace)
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class NamespaceManagerTestCase(NamespaceManagerTestFramework):
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def test_namespace_manager(self):
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router_id = _uuid()
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router_id_to_delete = _uuid()
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to_keep = set()
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to_delete = set()
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to_retrieve = set()
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to_keep.add(self._create_namespace(router_id,
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namespaces.RouterNamespace))
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to_keep.add(self._create_namespace(router_id,
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dvr_snat_ns.SnatNamespace))
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to_delete.add(self._create_namespace(router_id_to_delete,
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dvr_snat_ns.SnatNamespace))
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to_retrieve = to_keep | to_delete
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with mock.patch.object(namespace_manager.NamespaceManager, 'list_all',
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return_value=to_retrieve):
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with self.namespace_manager as ns_manager:
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for ns_name in to_keep:
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id_to_keep = ns_manager.get_prefix_and_id(ns_name)[1]
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ns_manager.keep_router(id_to_keep)
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for ns_name in to_keep:
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self.assertTrue(self._namespace_exists(ns_name))
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for ns_name in to_delete:
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(self.metadata_driver_mock.destroy_monitored_metadata_proxy.
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assert_called_once_with(mock.ANY,
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router_id_to_delete,
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self.agent_conf,
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ns_name))
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self.assertFalse(self._namespace_exists(ns_name))
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