Add vlan type driver unittests
Closes-Bug: #1269127 Change-Id: Ie2c1c5d2eea6627063dd77a08591d972060f59ee
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Cedric Brandily
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187
neutron/tests/unit/ml2/test_type_vlan.py
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187
neutron/tests/unit/ml2/test_type_vlan.py
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# Copyright (c) 2014 Thales Services SAS
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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 testtools import matchers
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from neutron.common import exceptions as exc
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import neutron.db.api as db
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from neutron.plugins.common import constants as p_const
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from neutron.plugins.ml2 import driver_api as api
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from neutron.plugins.ml2.drivers import type_vlan
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from neutron.tests import base
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PROVIDER_NET = 'phys_net1'
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TENANT_NET = 'phys_net2'
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VLAN_MIN = 200
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VLAN_MAX = 209
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NETWORK_VLAN_RANGES = {
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PROVIDER_NET: [],
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TENANT_NET: [(VLAN_MIN, VLAN_MAX)],
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}
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UPDATED_VLAN_RANGES = {
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PROVIDER_NET: [],
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TENANT_NET: [(VLAN_MIN + 5, VLAN_MAX + 5)],
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}
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class VlanTypeTest(base.BaseTestCase):
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def setUp(self):
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super(VlanTypeTest, self).setUp()
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db.configure_db()
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self.driver = type_vlan.VlanTypeDriver()
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self.driver.network_vlan_ranges = NETWORK_VLAN_RANGES
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self.driver._sync_vlan_allocations()
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self.session = db.get_session()
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self.addCleanup(db.clear_db)
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def _get_allocation(self, session, segment):
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return session.query(type_vlan.VlanAllocation).filter_by(
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physical_network=segment[api.PHYSICAL_NETWORK],
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vlan_id=segment[api.SEGMENTATION_ID]).first()
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def test_validate_provider_segment(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 1}
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self.assertIsNone(self.driver.validate_provider_segment(segment))
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def test_validate_provider_segment_with_missing_physical_network(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.SEGMENTATION_ID: 1}
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self.assertRaises(exc.InvalidInput,
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self.driver.validate_provider_segment,
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segment)
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def test_validate_provider_segment_with_missing_segmentation_id(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET}
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self.assertRaises(exc.InvalidInput,
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self.driver.validate_provider_segment,
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segment)
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def test_validate_provider_segment_with_invalid_physical_network(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: 'other_phys_net',
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api.SEGMENTATION_ID: 1}
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self.assertRaises(exc.InvalidInput,
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self.driver.validate_provider_segment,
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segment)
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def test_validate_provider_segment_with_invalid_segmentation_id(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 5000}
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self.assertRaises(exc.InvalidInput,
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self.driver.validate_provider_segment,
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segment)
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def test_validate_provider_segment_with_invalid_input(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 1,
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'invalid': 1}
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self.assertRaises(exc.InvalidInput,
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self.driver.validate_provider_segment,
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segment)
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def test_sync_vlan_allocations(self):
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def check_in_ranges(network_vlan_ranges):
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vlan_min, vlan_max = network_vlan_ranges[TENANT_NET][0]
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: TENANT_NET}
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segment[api.SEGMENTATION_ID] = vlan_min - 1
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self.assertIsNone(
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self._get_allocation(self.session, segment))
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segment[api.SEGMENTATION_ID] = vlan_max + 1
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self.assertIsNone(
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self._get_allocation(self.session, segment))
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segment[api.SEGMENTATION_ID] = vlan_min
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self.assertFalse(
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self._get_allocation(self.session, segment).allocated)
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segment[api.SEGMENTATION_ID] = vlan_max
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self.assertFalse(
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self._get_allocation(self.session, segment).allocated)
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check_in_ranges(NETWORK_VLAN_RANGES)
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self.driver.network_vlan_ranges = UPDATED_VLAN_RANGES
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self.driver._sync_vlan_allocations()
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check_in_ranges(UPDATED_VLAN_RANGES)
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def test_reserve_provider_segment(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 101}
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alloc = self._get_allocation(self.session, segment)
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self.assertIsNone(alloc)
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self.driver.reserve_provider_segment(self.session, segment)
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alloc = self._get_allocation(self.session, segment)
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self.assertTrue(alloc.allocated)
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def test_reserve_provider_segment_already_allocated(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 101}
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self.driver.reserve_provider_segment(self.session, segment)
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self.assertRaises(exc.VlanIdInUse,
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self.driver.reserve_provider_segment,
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self.session,
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segment)
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def test_reserve_provider_segment_in_tenant_pools(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: TENANT_NET,
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api.SEGMENTATION_ID: VLAN_MIN}
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alloc = self._get_allocation(self.session, segment)
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self.assertFalse(alloc.allocated)
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self.driver.reserve_provider_segment(self.session, segment)
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alloc = self._get_allocation(self.session, segment)
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self.assertTrue(alloc.allocated)
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def test_allocate_tenant_segment(self):
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for __ in range(VLAN_MIN, VLAN_MAX + 1):
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segment = self.driver.allocate_tenant_segment(self.session)
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alloc = self._get_allocation(self.session, segment)
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self.assertTrue(alloc.allocated)
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vlan_id = segment[api.SEGMENTATION_ID]
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self.assertThat(vlan_id, matchers.GreaterThan(VLAN_MIN - 1))
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self.assertThat(vlan_id, matchers.LessThan(VLAN_MAX + 1))
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self.assertEqual(TENANT_NET, segment[api.PHYSICAL_NETWORK])
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def test_allocate_tenant_segment_no_available(self):
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for __ in range(VLAN_MIN, VLAN_MAX + 1):
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self.driver.allocate_tenant_segment(self.session)
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segment = self.driver.allocate_tenant_segment(self.session)
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self.assertIsNone(segment)
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def test_release_segment(self):
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segment = self.driver.allocate_tenant_segment(self.session)
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self.driver.release_segment(self.session, segment)
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alloc = self._get_allocation(self.session, segment)
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self.assertFalse(alloc.allocated)
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def test_release_segment_unallocated(self):
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segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
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api.PHYSICAL_NETWORK: PROVIDER_NET,
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api.SEGMENTATION_ID: 101}
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with mock.patch.object(type_vlan.LOG, 'warning') as log_warn:
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self.driver.release_segment(self.session, segment)
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log_warn.assert_called_once_with(
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"No vlan_id %(vlan_id)s found on physical network "
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"%(physical_network)s",
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{'vlan_id': 101, 'physical_network': PROVIDER_NET})
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