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# -*- 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.commands import ReplicateCommand
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 prepare(self, reactor, clock, hs):
# build a replication server
server_factory = ReplicationStreamProtocolFactory(self.hs)
self.streamer = server_factory.streamer
self.server = server_factory.buildProtocol(None)
self.test_handler = Mock(wraps=TestReplicationClientHandler())
self.client = ClientReplicationStreamProtocol(
hs, "client", "test", clock, self.test_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)
def replicate_stream(self):
"""Make the client end a REPLICATE command to set up a subscription to a stream"""
self.client.send_command(ReplicateCommand())
class TestReplicationClientHandler(object):
"""Drop-in for ReplicationClientHandler 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
def get_currently_syncing_users(self):
return []
def update_connection(self, connection):
pass
def finished_connecting(self):
pass
async def on_position(self, stream_name, token):
"""Called when we get new position data."""
async def on_rdata(self, stream_name, token, rows):
for r in rows:
self._received_rdata_rows.append((stream_name, token, r))
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