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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright (C) 2025 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
from twisted.internet.testing import MemoryReactor
from synapse.replication.tcp.streams._base import (
_STREAM_UPDATE_TARGET_ROW_COUNT,
ThreadSubscriptionsStream,
)
from synapse.server import HomeServer
from synapse.storage.database import LoggingTransaction
from synapse.util.clock import Clock
from tests.replication._base import BaseStreamTestCase
class ThreadSubscriptionsStreamTestCase(BaseStreamTestCase):
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
super().prepare(reactor, clock, hs)
# Postgres
def f(txn: LoggingTransaction) -> None:
txn.execute(
"""
ALTER TABLE thread_subscriptions
DROP CONSTRAINT thread_subscriptions_fk_users,
DROP CONSTRAINT thread_subscriptions_fk_rooms,
DROP CONSTRAINT thread_subscriptions_fk_events;
""",
)
self.get_success(
self.hs.get_datastores().main.db_pool.runInteraction(
"disable_foreign_keys", f
)
)
def test_thread_subscription_updates(self) -> None:
"""Test replication with thread subscription updates"""
store = self.hs.get_datastores().main
# Create thread subscription updates
updates = []
room_id = "!test_room:example.com"
# Generate several thread subscription updates
for i in range(_STREAM_UPDATE_TARGET_ROW_COUNT + 5):
thread_root_id = f"$thread_{i}:example.com"
self.get_success(
store.subscribe_user_to_thread(
"@test_user:example.org",
room_id,
thread_root_id,
automatic_event_orderings=None,
)
)
updates.append(thread_root_id)
# Also add one in a different room
other_room_id = "!other_room:example.com"
other_thread_root_id = "$other_thread:example.com"
self.get_success(
store.subscribe_user_to_thread(
"@test_user:example.org",
other_room_id,
other_thread_root_id,
automatic_event_orderings=None,
)
)
# Not yet connected: no rows should yet have been received
self.assertEqual([], self.test_handler.received_rdata_rows)
# Now reconnect to pull the updates
self.reconnect()
self.replicate()
# We should have received all the expected rows in the right order
# Filter the updates to only include thread subscription changes
received_thread_subscription_rows = [
row
for row in self.test_handler.received_rdata_rows
if row[0] == ThreadSubscriptionsStream.NAME
]
# Verify all the thread subscription updates
for thread_id in updates:
(stream_name, token, row) = received_thread_subscription_rows.pop(0)
self.assertEqual(stream_name, ThreadSubscriptionsStream.NAME)
self.assertIsInstance(row, ThreadSubscriptionsStream.ROW_TYPE)
self.assertEqual(row.user_id, "@test_user:example.org")
self.assertEqual(row.room_id, room_id)
self.assertEqual(row.event_id, thread_id)
# Verify the last update in the different room
(stream_name, token, row) = received_thread_subscription_rows.pop(0)
self.assertEqual(stream_name, ThreadSubscriptionsStream.NAME)
self.assertIsInstance(row, ThreadSubscriptionsStream.ROW_TYPE)
self.assertEqual(row.user_id, "@test_user:example.org")
self.assertEqual(row.room_id, other_room_id)
self.assertEqual(row.event_id, other_thread_root_id)
self.assertEqual([], received_thread_subscription_rows)
def test_multiple_users_thread_subscription_updates(self) -> None:
"""Test replication with thread subscription updates for multiple users"""
store = self.hs.get_datastores().main
room_id = "!test_room:example.com"
thread_root_id = "$thread_root:example.com"
# Create updates for multiple users
users = ["@user1:example.com", "@user2:example.com", "@user3:example.com"]
for user_id in users:
self.get_success(
store.subscribe_user_to_thread(
user_id, room_id, thread_root_id, automatic_event_orderings=None
)
)
# Check no rows have been received yet
self.replicate()
self.assertEqual([], self.test_handler.received_rdata_rows)
# Not yet connected: no rows should yet have been received
self.reconnect()
self.replicate()
# We should have received all the expected rows
# Filter the updates to only include thread subscription changes
received_thread_subscription_rows = [
row
for row in self.test_handler.received_rdata_rows
if row[0] == ThreadSubscriptionsStream.NAME
]
# Should have one update per user
self.assertEqual(len(received_thread_subscription_rows), len(users))
# Verify all updates
for i, user_id in enumerate(users):
(stream_name, token, row) = received_thread_subscription_rows[i]
self.assertEqual(stream_name, ThreadSubscriptionsStream.NAME)
self.assertIsInstance(row, ThreadSubscriptionsStream.ROW_TYPE)
self.assertEqual(row.user_id, user_id)
self.assertEqual(row.room_id, room_id)
self.assertEqual(row.event_id, thread_root_id)
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