255 lines
8.9 KiB
Python
255 lines
8.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 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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import os.path
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from synapse.api.constants import EventTypes
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from synapse.storage import prepare_database
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from synapse.types import Requester, UserID
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from tests.unittest import HomeserverTestCase
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class CleanupExtremBackgroundUpdateStoreTestCase(HomeserverTestCase):
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"""Test the background update to clean forward extremities table.
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"""
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def make_homeserver(self, reactor, clock):
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# Hack until we understand why test_forked_graph_cleanup fails with v4
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config = self.default_config()
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config['default_room_version'] = '1'
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return self.setup_test_homeserver(config=config)
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def prepare(self, reactor, clock, homeserver):
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self.store = homeserver.get_datastore()
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self.event_creator = homeserver.get_event_creation_handler()
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self.room_creator = homeserver.get_room_creation_handler()
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# Create a test user and room
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self.user = UserID("alice", "test")
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self.requester = Requester(self.user, None, False, None, None)
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info = self.get_success(self.room_creator.create_room(self.requester, {}))
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self.room_id = info["room_id"]
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def create_and_send_event(self, soft_failed=False, prev_event_ids=None):
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"""Create and send an event.
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Args:
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soft_failed (bool): Whether to create a soft failed event or not
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prev_event_ids (list[str]|None): Explicitly set the prev events,
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or if None just use the default
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Returns:
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str: The new event's ID.
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"""
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prev_events_and_hashes = None
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if prev_event_ids:
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prev_events_and_hashes = [[p, {}, 0] for p in prev_event_ids]
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event, context = self.get_success(
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self.event_creator.create_event(
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self.requester,
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{
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"type": EventTypes.Message,
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"room_id": self.room_id,
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"sender": self.user.to_string(),
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"content": {"body": "", "msgtype": "m.text"},
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},
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prev_events_and_hashes=prev_events_and_hashes,
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)
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)
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if soft_failed:
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event.internal_metadata.soft_failed = True
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self.get_success(
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self.event_creator.send_nonmember_event(self.requester, event, context)
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)
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return event.event_id
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def add_extremity(self, event_id):
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"""Add the given event as an extremity to the room.
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"""
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self.get_success(
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self.store._simple_insert(
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table="event_forward_extremities",
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values={"room_id": self.room_id, "event_id": event_id},
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desc="test_add_extremity",
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)
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)
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self.store.get_latest_event_ids_in_room.invalidate((self.room_id,))
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def run_background_update(self):
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"""Re run the background update to clean up the extremities.
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"""
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# Make sure we don't clash with in progress updates.
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self.assertTrue(self.store._all_done, "Background updates are still ongoing")
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schema_path = os.path.join(
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prepare_database.dir_path,
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"schema",
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"delta",
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"54",
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"delete_forward_extremities.sql",
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)
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def run_delta_file(txn):
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prepare_database.executescript(txn, schema_path)
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self.get_success(
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self.store.runInteraction("test_delete_forward_extremities", run_delta_file)
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)
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# Ugh, have to reset this flag
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self.store._all_done = False
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while not self.get_success(self.store.has_completed_background_updates()):
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self.get_success(self.store.do_next_background_update(100), by=0.1)
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def test_soft_failed_extremities_handled_correctly(self):
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"""Test that extremities are correctly calculated in the presence of
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soft failed events.
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Tests a graph like:
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A <- SF1 <- SF2 <- B
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Where SF* are soft failed.
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"""
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# Create the room graph
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event_id_1 = self.create_and_send_event()
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event_id_2 = self.create_and_send_event(True, [event_id_1])
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event_id_3 = self.create_and_send_event(True, [event_id_2])
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event_id_4 = self.create_and_send_event(False, [event_id_3])
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# Check the latest events are as expected
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(latest_event_ids, [event_id_4])
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def test_basic_cleanup(self):
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"""Test that extremities are correctly calculated in the presence of
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soft failed events.
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Tests a graph like:
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A <- SF1 <- B
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Where SF* are soft failed, and with extremities of A and B
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"""
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# Create the room graph
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event_id_a = self.create_and_send_event()
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event_id_sf1 = self.create_and_send_event(True, [event_id_a])
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event_id_b = self.create_and_send_event(False, [event_id_sf1])
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# Add the new extremity and check the latest events are as expected
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self.add_extremity(event_id_a)
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(set(latest_event_ids), set((event_id_a, event_id_b)))
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# Run the background update and check it did the right thing
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self.run_background_update()
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(latest_event_ids, [event_id_b])
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def test_chain_of_fail_cleanup(self):
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"""Test that extremities are correctly calculated in the presence of
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soft failed events.
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Tests a graph like:
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A <- SF1 <- SF2 <- B
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Where SF* are soft failed, and with extremities of A and B
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"""
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# Create the room graph
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event_id_a = self.create_and_send_event()
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event_id_sf1 = self.create_and_send_event(True, [event_id_a])
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event_id_sf2 = self.create_and_send_event(True, [event_id_sf1])
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event_id_b = self.create_and_send_event(False, [event_id_sf2])
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# Add the new extremity and check the latest events are as expected
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self.add_extremity(event_id_a)
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(set(latest_event_ids), set((event_id_a, event_id_b)))
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# Run the background update and check it did the right thing
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self.run_background_update()
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(latest_event_ids, [event_id_b])
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def test_forked_graph_cleanup(self):
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r"""Test that extremities are correctly calculated in the presence of
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soft failed events.
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Tests a graph like, where time flows down the page:
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A B
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/ \ /
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/ \ /
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SF1 SF2
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SF3 |
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/ \ |
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| \ |
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C SF4
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Where SF* are soft failed, and with them A, B and C marked as
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extremities. This should resolve to B and C being marked as extremity.
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"""
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# Create the room graph
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event_id_a = self.create_and_send_event()
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event_id_b = self.create_and_send_event()
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event_id_sf1 = self.create_and_send_event(True, [event_id_a])
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event_id_sf2 = self.create_and_send_event(True, [event_id_a, event_id_b])
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event_id_sf3 = self.create_and_send_event(True, [event_id_sf1])
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self.create_and_send_event(True, [event_id_sf2, event_id_sf3]) # SF4
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event_id_c = self.create_and_send_event(False, [event_id_sf3])
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# Add the new extremity and check the latest events are as expected
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self.add_extremity(event_id_a)
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(
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set(latest_event_ids), set((event_id_a, event_id_b, event_id_c))
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)
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# Run the background update and check it did the right thing
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self.run_background_update()
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latest_event_ids = self.get_success(
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self.store.get_latest_event_ids_in_room(self.room_id)
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)
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self.assertEqual(set(latest_event_ids), set([event_id_b, event_id_c]))
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