d1b6776435
Instead of having the dispatcher target be a tuple or a single callback, have it be an actual type with comments as to what the types fields are and how they are used. This makes it more obvious as to what those fields are and how they are used so that it is easier to understand how the WBE engine and components work. Change-Id: I5541ccd5a7aa6ae73ed9adceeac2c0524e2a1dc9
144 lines
4.8 KiB
Python
144 lines
4.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2014 Yahoo! Inc. 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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from oslo_utils import uuidutils
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from taskflow.engines.worker_based import dispatcher
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from taskflow.engines.worker_based import protocol as pr
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from taskflow.engines.worker_based import proxy
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from taskflow import test
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from taskflow.test import mock
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from taskflow.tests import utils as test_utils
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from taskflow.types import latch
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from taskflow.utils import threading_utils
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TEST_EXCHANGE, TEST_TOPIC = ('test-exchange', 'test-topic')
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POLLING_INTERVAL = 0.01
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class TestMessagePump(test.TestCase):
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def test_notify(self):
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barrier = threading_utils.Event()
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on_notify = mock.MagicMock()
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on_notify.side_effect = lambda *args, **kwargs: barrier.set()
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handlers = {pr.NOTIFY: dispatcher.Handler(on_notify)}
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p = proxy.Proxy(TEST_TOPIC, TEST_EXCHANGE, handlers,
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transport='memory',
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transport_options={
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'polling_interval': POLLING_INTERVAL,
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})
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t = threading_utils.daemon_thread(p.start)
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t.start()
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p.wait()
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p.publish(pr.Notify(), TEST_TOPIC)
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self.assertTrue(barrier.wait(test_utils.WAIT_TIMEOUT))
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p.stop()
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t.join()
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self.assertTrue(on_notify.called)
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on_notify.assert_called_with({}, mock.ANY)
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def test_response(self):
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barrier = threading_utils.Event()
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on_response = mock.MagicMock()
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on_response.side_effect = lambda *args, **kwargs: barrier.set()
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handlers = {pr.RESPONSE: dispatcher.Handler(on_response)}
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p = proxy.Proxy(TEST_TOPIC, TEST_EXCHANGE, handlers,
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transport='memory',
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transport_options={
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'polling_interval': POLLING_INTERVAL,
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})
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t = threading_utils.daemon_thread(p.start)
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t.start()
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p.wait()
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resp = pr.Response(pr.RUNNING)
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p.publish(resp, TEST_TOPIC)
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self.assertTrue(barrier.wait(test_utils.WAIT_TIMEOUT))
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self.assertTrue(barrier.is_set())
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p.stop()
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t.join()
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self.assertTrue(on_response.called)
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on_response.assert_called_with(resp.to_dict(), mock.ANY)
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def test_multi_message(self):
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message_count = 30
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barrier = latch.Latch(message_count)
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countdown = lambda data, message: barrier.countdown()
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on_notify = mock.MagicMock()
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on_notify.side_effect = countdown
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on_response = mock.MagicMock()
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on_response.side_effect = countdown
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on_request = mock.MagicMock()
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on_request.side_effect = countdown
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handlers = {
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pr.NOTIFY: dispatcher.Handler(on_notify),
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pr.RESPONSE: dispatcher.Handler(on_response),
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pr.REQUEST: dispatcher.Handler(on_request),
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}
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p = proxy.Proxy(TEST_TOPIC, TEST_EXCHANGE, handlers,
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transport='memory',
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transport_options={
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'polling_interval': POLLING_INTERVAL,
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})
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t = threading_utils.daemon_thread(p.start)
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t.start()
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p.wait()
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for i in range(0, message_count):
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j = i % 3
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if j == 0:
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p.publish(pr.Notify(), TEST_TOPIC)
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elif j == 1:
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p.publish(pr.Response(pr.RUNNING), TEST_TOPIC)
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else:
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p.publish(pr.Request(test_utils.DummyTask("dummy_%s" % i),
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uuidutils.generate_uuid(),
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pr.EXECUTE, [], None), TEST_TOPIC)
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self.assertTrue(barrier.wait(test_utils.WAIT_TIMEOUT))
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self.assertEqual(0, barrier.needed)
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p.stop()
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t.join()
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self.assertTrue(on_notify.called)
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self.assertTrue(on_response.called)
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self.assertTrue(on_request.called)
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self.assertEqual(10, on_notify.call_count)
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self.assertEqual(10, on_response.call_count)
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self.assertEqual(10, on_request.call_count)
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call_count = sum([
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on_notify.call_count,
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on_response.call_count,
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on_request.call_count,
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])
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self.assertEqual(message_count, call_count)
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