126 lines
4.6 KiB
Python
126 lines
4.6 KiB
Python
# Copyright 2021 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import List
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from unittest import mock
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.app.generic_worker import GenericWorkerServer
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from synapse.server import HomeServer
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from synapse.storage.database import LoggingDatabaseConnection
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from synapse.storage.prepare_database import PrepareDatabaseException, prepare_database
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from synapse.storage.schema import SCHEMA_VERSION
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from synapse.types import JsonDict
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from synapse.util import Clock
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from tests.unittest import HomeserverTestCase
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def fake_listdir(filepath: str) -> List[str]:
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"""
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A fake implementation of os.listdir which we can use to mock out the filesystem.
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Args:
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filepath: The directory to list files for.
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Returns:
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A list of files and folders in the directory.
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"""
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if filepath.endswith("full_schemas"):
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return [str(SCHEMA_VERSION)]
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return ["99_add_unicorn_to_database.sql"]
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class WorkerSchemaTests(HomeserverTestCase):
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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hs = self.setup_test_homeserver(
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federation_http_client=None, homeserver_to_use=GenericWorkerServer
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)
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return hs
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def default_config(self) -> JsonDict:
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conf = super().default_config()
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# Mark this as a worker app.
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conf["worker_app"] = "yes"
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conf["instance_map"] = {"main": {"host": "127.0.0.1", "port": 0}}
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return conf
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def test_rolling_back(self) -> None:
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"""Test that workers can start if the DB is a newer schema version"""
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db_pool = self.hs.get_datastores().main.db_pool
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db_conn = LoggingDatabaseConnection(
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db_pool._db_pool.connect(),
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db_pool.engine,
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"tests",
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)
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cur = db_conn.cursor()
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cur.execute("UPDATE schema_version SET version = ?", (SCHEMA_VERSION + 1,))
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db_conn.commit()
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prepare_database(db_conn, db_pool.engine, self.hs.config)
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def test_not_upgraded_old_schema_version(self) -> None:
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"""Test that workers don't start if the DB has an older schema version"""
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db_pool = self.hs.get_datastores().main.db_pool
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db_conn = LoggingDatabaseConnection(
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db_pool._db_pool.connect(),
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db_pool.engine,
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"tests",
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)
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cur = db_conn.cursor()
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cur.execute("UPDATE schema_version SET version = ?", (SCHEMA_VERSION - 1,))
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db_conn.commit()
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with self.assertRaises(PrepareDatabaseException):
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prepare_database(db_conn, db_pool.engine, self.hs.config)
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def test_not_upgraded_current_schema_version_with_outstanding_deltas(self) -> None:
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"""
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Test that workers don't start if the DB is on the current schema version,
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but there are still outstanding delta migrations to run.
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"""
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db_pool = self.hs.get_datastores().main.db_pool
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db_conn = LoggingDatabaseConnection(
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db_pool._db_pool.connect(),
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db_pool.engine,
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"tests",
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)
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# Set the schema version of the database to the current version
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cur = db_conn.cursor()
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cur.execute("UPDATE schema_version SET version = ?", (SCHEMA_VERSION,))
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db_conn.commit()
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# Path `os.listdir` here to make synapse think that there is a migration
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# file ready to be run.
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# Note that we can't patch this function for the whole method, else Synapse
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# will try to find the file when building the database initially.
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with mock.patch("os.listdir", mock.Mock(side_effect=fake_listdir)):
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with self.assertRaises(PrepareDatabaseException):
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# Synapse should think that there is an outstanding migration file due to
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# patching 'os.listdir' in the function decorator.
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#
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# We expect Synapse to raise an exception to indicate the master process
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# needs to apply this migration file.
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prepare_database(db_conn, db_pool.engine, self.hs.config)
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