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# Copyright 2014 Canonical, Ltd.
#
# 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 testtools
from oslo.utils import importutils
from tests import utils as test_utils
# NOTE(jamespage) matchmaker tied directly to eventlet
# which is not yet py3 compatible - skip if import fails
matchmaker_ring = (
importutils.try_import('oslo.messaging._drivers.matchmaker_ring'))
@testtools.skipIf(not matchmaker_ring, "matchmaker/eventlet unavailable")
class MatchmakerRingTest(test_utils.BaseTestCase):
def setUp(self):
super(MatchmakerRingTest, self).setUp()
self.ring_data = {
"conductor": ["controller1", "node1", "node2", "node3"],
"scheduler": ["controller1", "node1", "node2", "node3"],
"network": ["controller1", "node1", "node2", "node3"],
"cert": ["controller1"],
"console": ["controller1"],
"consoleauth": ["controller1"]}
self.matcher = matchmaker_ring.MatchMakerRing(self.ring_data)
def test_direct(self):
self.assertEqual(
self.matcher.queues('cert.controller1'),
[('cert.controller1', 'controller1')])
self.assertEqual(
self.matcher.queues('conductor.node1'),
[('conductor.node1', 'node1')])
def test_fanout(self):
self.assertEqual(
self.matcher.queues('fanout~conductor'),
[('fanout~conductor.controller1', 'controller1'),
('fanout~conductor.node1', 'node1'),
('fanout~conductor.node2', 'node2'),
('fanout~conductor.node3', 'node3')])
def test_bare_topic(self):
# Round robins through the hosts on the topic
self.assertEqual(
self.matcher.queues('scheduler'),
[('scheduler.controller1', 'controller1')])
self.assertEqual(
self.matcher.queues('scheduler'),
[('scheduler.node1', 'node1')])
self.assertEqual(
self.matcher.queues('scheduler'),
[('scheduler.node2', 'node2')])
self.assertEqual(
self.matcher.queues('scheduler'),
[('scheduler.node3', 'node3')])
# Cycles loop
self.assertEqual(
self.matcher.queues('scheduler'),
[('scheduler.controller1', 'controller1')])
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