synapse-product/tests/replication/tcp/streams/_base.py
Erik Johnston 5016b162fc
Move client command handling out of TCP protocol (#7185)
The aim here is to move the command handling out of the TCP protocol classes and to also merge the client and server command handling (so that we can reuse them for redis protocol). This PR simply moves the client paths to the new `ReplicationCommandHandler`, a future PR will move the server paths too.
2020-04-06 09:58:42 +01:00

98 lines
3.3 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2019 New Vector 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.
from mock import Mock
from synapse.replication.tcp.handler import ReplicationCommandHandler
from synapse.replication.tcp.protocol import ClientReplicationStreamProtocol
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from tests import unittest
from tests.server import FakeTransport
class BaseStreamTestCase(unittest.HomeserverTestCase):
"""Base class for tests of the replication streams"""
def make_homeserver(self, reactor, clock):
self.test_handler = Mock(wraps=TestReplicationDataHandler())
return self.setup_test_homeserver(replication_data_handler=self.test_handler)
def prepare(self, reactor, clock, hs):
# build a replication server
server_factory = ReplicationStreamProtocolFactory(hs)
self.streamer = hs.get_replication_streamer()
self.server = server_factory.buildProtocol(None)
repl_handler = ReplicationCommandHandler(hs)
repl_handler.handler = self.test_handler
self.client = ClientReplicationStreamProtocol(
hs, "client", "test", clock, repl_handler,
)
self._client_transport = None
self._server_transport = None
def reconnect(self):
if self._client_transport:
self.client.close()
if self._server_transport:
self.server.close()
self._client_transport = FakeTransport(self.server, self.reactor)
self.client.makeConnection(self._client_transport)
self._server_transport = FakeTransport(self.client, self.reactor)
self.server.makeConnection(self._server_transport)
def disconnect(self):
if self._client_transport:
self._client_transport = None
self.client.close()
if self._server_transport:
self._server_transport = None
self.server.close()
def replicate(self):
"""Tell the master side of replication that something has happened, and then
wait for the replication to occur.
"""
self.streamer.on_notifier_poke()
self.pump(0.1)
class TestReplicationDataHandler:
"""Drop-in for ReplicationDataHandler which just collects RDATA rows"""
def __init__(self):
self.streams = set()
self._received_rdata_rows = []
def get_streams_to_replicate(self):
positions = {s: 0 for s in self.streams}
for stream, token, _ in self._received_rdata_rows:
if stream in self.streams:
positions[stream] = max(token, positions.get(stream, 0))
return positions
async def on_rdata(self, stream_name, token, rows):
for r in rows:
self._received_rdata_rows.append((stream_name, token, r))
async def on_position(self, stream_name, token):
pass