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synapse/tests/replication/test_module_cache_invalidation.py

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#
2023-11-21 21:29:58 +01:00
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2022 The Matrix.org Foundation C.I.C.
2023-11-21 21:29:58 +01:00
# Copyright (C) 2023 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>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import logging
import synapse
from synapse.module_api import cached
from tests.replication._base import BaseMultiWorkerStreamTestCase
logger = logging.getLogger(__name__)
FIRST_VALUE = "one"
SECOND_VALUE = "two"
KEY = "mykey"
class TestCache:
current_value = FIRST_VALUE
@cached()
async def cached_function(self, user_id: str) -> str:
return self.current_value
class ModuleCacheInvalidationTestCase(BaseMultiWorkerStreamTestCase):
servlets = [
synapse.rest.admin.register_servlets,
]
def test_module_cache_full_invalidation(self) -> None:
main_cache = TestCache()
self.hs.get_module_api().register_cached_function(main_cache.cached_function)
worker_hs = self.make_worker_hs("synapse.app.generic_worker")
worker_cache = TestCache()
worker_hs.get_module_api().register_cached_function(
worker_cache.cached_function
)
self.assertEqual(FIRST_VALUE, self.get_success(main_cache.cached_function(KEY)))
self.assertEqual(
FIRST_VALUE, self.get_success(worker_cache.cached_function(KEY))
)
main_cache.current_value = SECOND_VALUE
worker_cache.current_value = SECOND_VALUE
# No invalidation yet, should return the cached value on both the main process and the worker
self.assertEqual(FIRST_VALUE, self.get_success(main_cache.cached_function(KEY)))
self.assertEqual(
FIRST_VALUE, self.get_success(worker_cache.cached_function(KEY))
)
# Full invalidation on the main process, should be replicated on the worker that
# should returned the updated value too
self.get_success(
self.hs.get_module_api().invalidate_cache(
main_cache.cached_function, (KEY,)
)
)
self.assertEqual(
SECOND_VALUE, self.get_success(main_cache.cached_function(KEY))
)
self.assertEqual(
SECOND_VALUE, self.get_success(worker_cache.cached_function(KEY))
)