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https://mau.dev/maunium/synapse.git
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5019945828
Get rid of the labyrinthine `recoverer_fn` code, and clean up the startup code (it seemed to be previously inexplicably split between `ApplicationServiceScheduler.start` and `_Recoverer.start`). Add some docstrings too.
256 lines
9.9 KiB
Python
256 lines
9.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from mock import Mock
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from twisted.internet import defer
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from synapse.appservice import ApplicationServiceState
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from synapse.appservice.scheduler import (
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_Recoverer,
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_ServiceQueuer,
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_TransactionController,
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)
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from synapse.logging.context import make_deferred_yieldable
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from tests import unittest
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from ..utils import MockClock
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class ApplicationServiceSchedulerTransactionCtrlTestCase(unittest.TestCase):
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def setUp(self):
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self.clock = MockClock()
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self.store = Mock()
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self.as_api = Mock()
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self.recoverer = Mock()
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self.recoverer_fn = Mock(return_value=self.recoverer)
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self.txnctrl = _TransactionController(
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clock=self.clock, store=self.store, as_api=self.as_api
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)
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self.txnctrl.RECOVERER_CLASS = self.recoverer_fn
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def test_single_service_up_txn_sent(self):
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# Test: The AS is up and the txn is successfully sent.
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service = Mock()
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events = [Mock(), Mock()]
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txn_id = "foobar"
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txn = Mock(id=txn_id, service=service, events=events)
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# mock methods
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self.store.get_appservice_state = Mock(
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return_value=defer.succeed(ApplicationServiceState.UP)
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)
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txn.send = Mock(return_value=defer.succeed(True))
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self.store.create_appservice_txn = Mock(return_value=defer.succeed(txn))
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# actual call
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self.txnctrl.send(service, events)
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self.store.create_appservice_txn.assert_called_once_with(
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service=service, events=events # txn made and saved
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)
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self.assertEquals(0, len(self.txnctrl.recoverers)) # no recoverer made
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txn.complete.assert_called_once_with(self.store) # txn completed
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def test_single_service_down(self):
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# Test: The AS is down so it shouldn't push; Recoverers will do it.
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# It should still make a transaction though.
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service = Mock()
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events = [Mock(), Mock()]
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txn = Mock(id="idhere", service=service, events=events)
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self.store.get_appservice_state = Mock(
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return_value=defer.succeed(ApplicationServiceState.DOWN)
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)
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self.store.create_appservice_txn = Mock(return_value=defer.succeed(txn))
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# actual call
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self.txnctrl.send(service, events)
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self.store.create_appservice_txn.assert_called_once_with(
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service=service, events=events # txn made and saved
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)
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self.assertEquals(0, txn.send.call_count) # txn not sent though
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self.assertEquals(0, txn.complete.call_count) # or completed
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def test_single_service_up_txn_not_sent(self):
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# Test: The AS is up and the txn is not sent. A Recoverer is made and
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# started.
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service = Mock()
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events = [Mock(), Mock()]
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txn_id = "foobar"
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txn = Mock(id=txn_id, service=service, events=events)
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# mock methods
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self.store.get_appservice_state = Mock(
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return_value=defer.succeed(ApplicationServiceState.UP)
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)
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self.store.set_appservice_state = Mock(return_value=defer.succeed(True))
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txn.send = Mock(return_value=defer.succeed(False)) # fails to send
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self.store.create_appservice_txn = Mock(return_value=defer.succeed(txn))
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# actual call
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self.txnctrl.send(service, events)
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self.store.create_appservice_txn.assert_called_once_with(
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service=service, events=events
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)
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self.assertEquals(1, self.recoverer_fn.call_count) # recoverer made
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self.assertEquals(1, self.recoverer.recover.call_count) # and invoked
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self.assertEquals(1, len(self.txnctrl.recoverers)) # and stored
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self.assertEquals(0, txn.complete.call_count) # txn not completed
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self.store.set_appservice_state.assert_called_once_with(
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service, ApplicationServiceState.DOWN # service marked as down
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)
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class ApplicationServiceSchedulerRecovererTestCase(unittest.TestCase):
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def setUp(self):
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self.clock = MockClock()
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self.as_api = Mock()
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self.store = Mock()
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self.service = Mock()
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self.callback = Mock()
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self.recoverer = _Recoverer(
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clock=self.clock,
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as_api=self.as_api,
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store=self.store,
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service=self.service,
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callback=self.callback,
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)
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def test_recover_single_txn(self):
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txn = Mock()
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# return one txn to send, then no more old txns
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txns = [txn, None]
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def take_txn(*args, **kwargs):
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return defer.succeed(txns.pop(0))
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self.store.get_oldest_unsent_txn = Mock(side_effect=take_txn)
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self.recoverer.recover()
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# shouldn't have called anything prior to waiting for exp backoff
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self.assertEquals(0, self.store.get_oldest_unsent_txn.call_count)
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txn.send = Mock(return_value=True)
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# wait for exp backoff
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self.clock.advance_time(2)
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self.assertEquals(1, txn.send.call_count)
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self.assertEquals(1, txn.complete.call_count)
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# 2 because it needs to get None to know there are no more txns
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self.assertEquals(2, self.store.get_oldest_unsent_txn.call_count)
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self.callback.assert_called_once_with(self.recoverer)
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self.assertEquals(self.recoverer.service, self.service)
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def test_recover_retry_txn(self):
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txn = Mock()
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txns = [txn, None]
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pop_txn = False
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def take_txn(*args, **kwargs):
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if pop_txn:
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return defer.succeed(txns.pop(0))
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else:
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return defer.succeed(txn)
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self.store.get_oldest_unsent_txn = Mock(side_effect=take_txn)
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self.recoverer.recover()
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self.assertEquals(0, self.store.get_oldest_unsent_txn.call_count)
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txn.send = Mock(return_value=False)
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self.clock.advance_time(2)
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self.assertEquals(1, txn.send.call_count)
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self.assertEquals(0, txn.complete.call_count)
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self.assertEquals(0, self.callback.call_count)
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self.clock.advance_time(4)
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self.assertEquals(2, txn.send.call_count)
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self.assertEquals(0, txn.complete.call_count)
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self.assertEquals(0, self.callback.call_count)
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self.clock.advance_time(8)
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self.assertEquals(3, txn.send.call_count)
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self.assertEquals(0, txn.complete.call_count)
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self.assertEquals(0, self.callback.call_count)
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txn.send = Mock(return_value=True) # successfully send the txn
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pop_txn = True # returns the txn the first time, then no more.
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self.clock.advance_time(16)
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self.assertEquals(1, txn.send.call_count) # new mock reset call count
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self.assertEquals(1, txn.complete.call_count)
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self.callback.assert_called_once_with(self.recoverer)
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class ApplicationServiceSchedulerQueuerTestCase(unittest.TestCase):
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def setUp(self):
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self.txn_ctrl = Mock()
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self.queuer = _ServiceQueuer(self.txn_ctrl, MockClock())
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def test_send_single_event_no_queue(self):
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# Expect the event to be sent immediately.
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service = Mock(id=4)
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event = Mock()
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self.queuer.enqueue(service, event)
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self.txn_ctrl.send.assert_called_once_with(service, [event])
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def test_send_single_event_with_queue(self):
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d = defer.Deferred()
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self.txn_ctrl.send = Mock(side_effect=lambda x, y: make_deferred_yieldable(d))
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service = Mock(id=4)
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event = Mock(event_id="first")
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event2 = Mock(event_id="second")
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event3 = Mock(event_id="third")
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# Send an event and don't resolve it just yet.
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self.queuer.enqueue(service, event)
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# Send more events: expect send() to NOT be called multiple times.
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self.queuer.enqueue(service, event2)
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self.queuer.enqueue(service, event3)
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self.txn_ctrl.send.assert_called_with(service, [event])
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self.assertEquals(1, self.txn_ctrl.send.call_count)
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# Resolve the send event: expect the queued events to be sent
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d.callback(service)
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self.txn_ctrl.send.assert_called_with(service, [event2, event3])
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self.assertEquals(2, self.txn_ctrl.send.call_count)
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def test_multiple_service_queues(self):
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# Tests that each service has its own queue, and that they don't block
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# on each other.
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srv1 = Mock(id=4)
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srv_1_defer = defer.Deferred()
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srv_1_event = Mock(event_id="srv1a")
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srv_1_event2 = Mock(event_id="srv1b")
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srv2 = Mock(id=6)
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srv_2_defer = defer.Deferred()
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srv_2_event = Mock(event_id="srv2a")
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srv_2_event2 = Mock(event_id="srv2b")
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send_return_list = [srv_1_defer, srv_2_defer]
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def do_send(x, y):
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return make_deferred_yieldable(send_return_list.pop(0))
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self.txn_ctrl.send = Mock(side_effect=do_send)
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# send events for different ASes and make sure they are sent
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self.queuer.enqueue(srv1, srv_1_event)
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self.queuer.enqueue(srv1, srv_1_event2)
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self.txn_ctrl.send.assert_called_with(srv1, [srv_1_event])
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self.queuer.enqueue(srv2, srv_2_event)
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self.queuer.enqueue(srv2, srv_2_event2)
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self.txn_ctrl.send.assert_called_with(srv2, [srv_2_event])
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# make sure callbacks for a service only send queued events for THAT
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# service
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srv_2_defer.callback(srv2)
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self.txn_ctrl.send.assert_called_with(srv2, [srv_2_event2])
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self.assertEquals(3, self.txn_ctrl.send.call_count)
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