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# Copyright 2023 The Matrix.org Foundation C.I.C.
#
# 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 unittest.mock import Mock, call
from synapse.storage.database import LoggingTransaction
from tests.replication._base import BaseMultiWorkerStreamTestCase
from tests.unittest import HomeserverTestCase
class CacheInvalidationTestCase(HomeserverTestCase):
def setUp(self) -> None:
super().setUp()
self.store = self.hs.get_datastores().main
def test_bulk_invalidation(self) -> None:
master_invalidate = Mock()
self.store._get_cached_user_device.invalidate = master_invalidate
keys_to_invalidate = [
("a", "b"),
("c", "d"),
("e", "f"),
("g", "h"),
]
def test_txn(txn: LoggingTransaction) -> None:
self.store._invalidate_cache_and_stream_bulk(
txn,
# This is an arbitrarily chosen cached store function. It was chosen
# because it takes more than one argument. We'll use this later to
# check that the invalidation was actioned over replication.
cache_func=self.store._get_cached_user_device,
key_tuples=keys_to_invalidate,
)
self.get_success(
self.store.db_pool.runInteraction(
"test_invalidate_cache_and_stream_bulk", test_txn
)
)
master_invalidate.assert_has_calls(
[call(key_list) for key_list in keys_to_invalidate],
any_order=True,
)
class CacheInvalidationOverReplicationTestCase(BaseMultiWorkerStreamTestCase):
def setUp(self) -> None:
super().setUp()
self.store = self.hs.get_datastores().main
def test_bulk_invalidation_replicates(self) -> None:
"""Like test_bulk_invalidation, but also checks the invalidations replicate."""
master_invalidate = Mock()
worker_invalidate = Mock()
self.store._get_cached_user_device.invalidate = master_invalidate
worker = self.make_worker_hs("synapse.app.generic_worker")
worker_ds = worker.get_datastores().main
worker_ds._get_cached_user_device.invalidate = worker_invalidate
keys_to_invalidate = [
("a", "b"),
("c", "d"),
("e", "f"),
("g", "h"),
]
def test_txn(txn: LoggingTransaction) -> None:
self.store._invalidate_cache_and_stream_bulk(
txn,
# This is an arbitrarily chosen cached store function. It was chosen
# because it takes more than one argument. We'll use this later to
# check that the invalidation was actioned over replication.
cache_func=self.store._get_cached_user_device,
key_tuples=keys_to_invalidate,
)
assert self.store._cache_id_gen is not None
initial_token = self.store._cache_id_gen.get_current_token()
self.get_success(
self.database_pool.runInteraction(
"test_invalidate_cache_and_stream_bulk", test_txn
)
)
second_token = self.store._cache_id_gen.get_current_token()
self.assertGreaterEqual(second_token, initial_token + len(keys_to_invalidate))
self.get_success(
worker.get_replication_data_handler().wait_for_stream_position(
"master", "caches", second_token
)
)
master_invalidate.assert_has_calls(
[call(key_list) for key_list in keys_to_invalidate],
any_order=True,
)
worker_invalidate.assert_has_calls(
[call(key_list) for key_list in keys_to_invalidate],
any_order=True,
)
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