84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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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 time
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from oslo_config import cfg
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from ironic.common import exception
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from ironic.common import hash_ring
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from ironic.tests.unit.db import base as db_base
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CONF = cfg.CONF
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class HashRingManagerTestCase(db_base.DbTestCase):
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def setUp(self):
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super(HashRingManagerTestCase, self).setUp()
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self.ring_manager = hash_ring.HashRingManager()
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def register_conductors(self):
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c1 = self.dbapi.register_conductor({
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'hostname': 'host1',
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'drivers': ['driver1', 'driver2'],
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})
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c2 = self.dbapi.register_conductor({
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'hostname': 'host2',
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'drivers': ['driver1'],
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})
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for c in (c1, c2):
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self.dbapi.register_conductor_hardware_interfaces(
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c.id, 'hardware-type', 'deploy', ['iscsi', 'direct'], 'iscsi')
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def test_hash_ring_manager_get_ring_success(self):
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self.register_conductors()
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ring = self.ring_manager['driver1']
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self.assertEqual(sorted(['host1', 'host2']), sorted(ring.nodes))
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def test_hash_ring_manager_hardware_type_success(self):
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self.register_conductors()
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ring = self.ring_manager['hardware-type']
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self.assertEqual(sorted(['host1', 'host2']), sorted(ring.nodes))
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def test_hash_ring_manager_driver_not_found(self):
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self.register_conductors()
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self.assertRaises(exception.DriverNotFound,
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self.ring_manager.__getitem__,
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'driver3')
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def test_hash_ring_manager_no_refresh(self):
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# If a new conductor is registered after the ring manager is
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# initialized, it won't be seen. Long term this is probably
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# undesirable, but today is the intended behavior.
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self.assertRaises(exception.DriverNotFound,
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self.ring_manager.__getitem__,
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'driver1')
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self.register_conductors()
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self.assertRaises(exception.DriverNotFound,
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self.ring_manager.__getitem__,
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'driver1')
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def test_hash_ring_manager_refresh(self):
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CONF.set_override('hash_ring_reset_interval', 30)
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# Initialize the ring manager to make _hash_rings not None, then
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# hash ring will refresh only when time interval exceeded.
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self.assertRaises(exception.DriverNotFound,
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self.ring_manager.__getitem__,
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'driver1')
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self.register_conductors()
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self.ring_manager.updated_at = time.time() - 31
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self.ring_manager.__getitem__('driver1')
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