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OpenStack Study: test_maclearning.py

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# 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 contextlib

import mock

from oslo.config import cfg

from neutron.api.v2 import attributes

from neutron.common.test_lib import test_config

from neutron import context

from neutron.extensions import agent

from neutron.plugins.vmware.api_client.version import Version

from neutron.plugins.vmware.common import sync

from neutron.tests.unit import test_db_plugin

from neutron.tests.unit.vmware.apiclient import fake

from neutron.tests.unit.vmware import get_fake_conf

from neutron.tests.unit.vmware import NSXAPI_NAME

from neutron.tests.unit.vmware import NSXEXT_PATH

from neutron.tests.unit.vmware import PLUGIN_NAME

from neutron.tests.unit.vmware import STUBS_PATH

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class MacLearningExtensionManager(object):

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    def get_resources(self):

        # Add the resources to the global attribute map

        # This is done here as the setup process won't

        # initialize the main API router which extends

        # the global attribute map

        attributes.RESOURCE_ATTRIBUTE_MAP.update(

            agent.RESOURCE_ATTRIBUTE_MAP)

        return agent.Agent.get_resources()

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    def get_actions(self):

        return []

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    def get_request_extensions(self):

        return []

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class MacLearningDBTestCase(test_db_plugin.NeutronDbPluginV2TestCase):

fmt = 'json'

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    def setUp(self):

        self.adminContext = context.get_admin_context()

        test_config['config_files'] = [get_fake_conf('nsx.ini.full.test')]

        cfg.CONF.set_override('api_extensions_path', NSXEXT_PATH)

        # Save the original RESOURCE_ATTRIBUTE_MAP

        self.saved_attr_map = {}

        for resource, attrs in attributes.RESOURCE_ATTRIBUTE_MAP.iteritems():

            self.saved_attr_map[resource] = attrs.copy()

        ext_mgr = MacLearningExtensionManager()

        # mock api client

        self.fc = fake.FakeClient(STUBS_PATH)

        self.mock_nsx = mock.patch(NSXAPI_NAME, autospec=True)

        instance = self.mock_nsx.start()

        # Avoid runs of the synchronizer looping call

        patch_sync = mock.patch.object(sync, '_start_loopingcall')

        patch_sync.start()

        # Emulate tests against NSX 2.x

        instance.return_value.get_version.return_value = Version("3.0")

        instance.return_value.request.side_effect = self.fc.fake_request

        cfg.CONF.set_override('metadata_mode', None, 'NSX')

        self.addCleanup(self.fc.reset_all)

        self.addCleanup(self.restore_resource_attribute_map)

        super(MacLearningDBTestCase, self).setUp(plugin=PLUGIN_NAME,

                                                 ext_mgr=ext_mgr)

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    def restore_resource_attribute_map(self):

        # Restore the original RESOURCE_ATTRIBUTE_MAP

        attributes.RESOURCE_ATTRIBUTE_MAP = self.saved_attr_map

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    def test_create_with_mac_learning(self):

        with self.port(arg_list=('mac_learning_enabled',),

                       mac_learning_enabled=True) as port:

            # Validate create operation response

            self.assertEqual(True, port['port']['mac_learning_enabled'])

            # Verify that db operation successfully set mac learning state

            req = self.new_show_request('ports', port['port']['id'], self.fmt)

            sport = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertEqual(True, sport['port']['mac_learning_enabled'])

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    def test_create_and_show_port_without_mac_learning(self):

        with self.port() as port:

            req = self.new_show_request('ports', port['port']['id'], self.fmt)

            sport = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertNotIn('mac_learning_enabled', sport['port'])

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    def test_update_port_with_mac_learning(self):

        with self.port(arg_list=('mac_learning_enabled',),

                       mac_learning_enabled=False) as port:

            data = {'port': {'mac_learning_enabled': True}}

            req = self.new_update_request('ports', data, port['port']['id'])

            res = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertEqual(True, res['port']['mac_learning_enabled'])

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    def test_update_preexisting_port_with_mac_learning(self):

        with self.port() as port:

            req = self.new_show_request('ports', port['port']['id'], self.fmt)

            sport = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertNotIn('mac_learning_enabled', sport['port'])

            data = {'port': {'mac_learning_enabled': True}}

            req = self.new_update_request('ports', data, port['port']['id'])

            # Validate update operation response

            res = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertEqual(True, res['port']['mac_learning_enabled'])

            # Verify that db operation successfully updated mac learning state

            req = self.new_show_request('ports', port['port']['id'], self.fmt)

            sport = self.deserialize(self.fmt, req.get_response(self.api))

            self.assertEqual(True, sport['port']['mac_learning_enabled'])

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    def test_list_ports(self):

        # for this test we need to enable overlapping ips

        cfg.CONF.set_default('allow_overlapping_ips', True)

        with contextlib.nested(self.port(arg_list=('mac_learning_enabled',),

                                         mac_learning_enabled=True),

                               self.port(arg_list=('mac_learning_enabled',),

                                         mac_learning_enabled=True),

                               self.port(arg_list=('mac_learning_enabled',),

                                         mac_learning_enabled=True)):

            for port in self._list('ports')['ports']:

                self.assertEqual(True, port['mac_learning_enabled'])

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    def test_show_port(self):

        with self.port(arg_list=('mac_learning_enabled',),

                       mac_learning_enabled=True) as p:

            port_res = self._show('ports', p['port']['id'])['port']

            self.assertEqual(True, port_res['mac_learning_enabled'])