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# Copyright (c) 2018 Intel Corporation
#
# 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 multiprocessing
import time
from yardstick.common.messaging import consumer
from yardstick.common.messaging import payloads
from yardstick.common.messaging import producer
from yardstick.tests.functional import base
TOPIC = 'topic_MQ'
METHOD_INFO = 'info'
class DummyPayload(payloads.Payload):
REQUIRED_FIELDS = {'version', 'data'}
class DummyEndpoint(consumer.NotificationHandler):
def info(self, ctxt, **kwargs):
if ctxt['pid'] in self._ctx_pids:
self._queue.put('ID {}, data: {}, pid: {}'.format(
self._id, kwargs['data'], ctxt['pid']))
class DummyConsumer(consumer.MessagingConsumer):
def __init__(self, _id, ctx_pids, queue):
self._id = _id
endpoints = [DummyEndpoint(_id, ctx_pids, queue)]
super(DummyConsumer, self).__init__(TOPIC, ctx_pids, endpoints)
class DummyProducer(producer.MessagingProducer):
pass
def _run_consumer(_id, ctx_pids, queue):
_consumer = DummyConsumer(_id, ctx_pids, queue)
_consumer.start_rpc_server()
_consumer.wait()
class MessagingTestCase(base.BaseFunctionalTestCase):
@staticmethod
def _terminate_consumers(num_consumers, processes):
for i in range(num_consumers):
processes[i].terminate()
def test_run_five_consumers(self):
output_queue = multiprocessing.Queue()
num_consumers = 10
ctx_1 = 100001
ctx_2 = 100002
producers = [DummyProducer(TOPIC, pid=ctx_1),
DummyProducer(TOPIC, pid=ctx_2)]
processes = []
for i in range(num_consumers):
processes.append(multiprocessing.Process(
name='consumer_{}'.format(i),
target=_run_consumer,
args=(i, [ctx_1, ctx_2], output_queue)))
processes[i].start()
self.addCleanup(self._terminate_consumers, num_consumers, processes)
time.sleep(2) # Let consumers to create the listeners
for producer in producers:
for message in ['message 0', 'message 1']:
producer.send_message(METHOD_INFO,
DummyPayload(version=1, data=message))
time.sleep(2) # Let consumers attend the calls
output = []
while not output_queue.empty():
output.append(output_queue.get(True, 1))
self.assertEqual(num_consumers * 4, len(output))
msg_template = 'ID {}, data: {}, pid: {}'
for i in range(num_consumers):
for ctx in [ctx_1, ctx_2]:
for message in ['message 0', 'message 1']:
msg = msg_template.format(i, message, ctx)
self.assertIn(msg, output)
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