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# -*- coding: utf-8 -*-
# Copyright 2019 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.
import os.path
from synapse.storage import prepare_database
from synapse.types import Requester, UserID
from tests.unittest import HomeserverTestCase
class CleanupExtremBackgroundUpdateStoreTestCase(HomeserverTestCase):
"""
Test the background update to clean forward extremities table.
"""
def prepare(self, reactor, clock, homeserver):
self.store = homeserver.get_datastore()
self.room_creator = homeserver.get_room_creation_handler()
# Create a test user and room
self.user = UserID("alice", "test")
self.requester = Requester(self.user, None, False, None, None)
info = self.get_success(self.room_creator.create_room(self.requester, {}))
self.room_id = info["room_id"]
def run_background_update(self):
"""Re run the background update to clean up the extremities.
"""
# Make sure we don't clash with in progress updates.
self.assertTrue(self.store._all_done, "Background updates are still ongoing")
schema_path = os.path.join(
prepare_database.dir_path,
"schema",
"delta",
"54",
"delete_forward_extremities.sql",
)
def run_delta_file(txn):
prepare_database.executescript(txn, schema_path)
self.get_success(
self.store.runInteraction("test_delete_forward_extremities", run_delta_file)
)
# Ugh, have to reset this flag
self.store._all_done = False
while not self.get_success(self.store.has_completed_background_updates()):
self.get_success(self.store.do_next_background_update(100), by=0.1)
def test_soft_failed_extremities_handled_correctly(self):
"""Test that extremities are correctly calculated in the presence of
soft failed events.
Tests a graph like:
A <- SF1 <- SF2 <- B
Where SF* are soft failed.
"""
# Create the room graph
event_id_1 = self.create_and_send_event(self.room_id, self.user)
event_id_2 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_1]
)
event_id_3 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_2]
)
event_id_4 = self.create_and_send_event(
self.room_id, self.user, False, [event_id_3]
)
# Check the latest events are as expected
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(latest_event_ids, [event_id_4])
def test_basic_cleanup(self):
"""Test that extremities are correctly calculated in the presence of
soft failed events.
Tests a graph like:
A <- SF1 <- B
Where SF* are soft failed, and with extremities of A and B
"""
# Create the room graph
event_id_a = self.create_and_send_event(self.room_id, self.user)
event_id_sf1 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_a]
)
event_id_b = self.create_and_send_event(
self.room_id, self.user, False, [event_id_sf1]
)
# Add the new extremity and check the latest events are as expected
self.add_extremity(self.room_id, event_id_a)
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(set(latest_event_ids), set((event_id_a, event_id_b)))
# Run the background update and check it did the right thing
self.run_background_update()
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(latest_event_ids, [event_id_b])
def test_chain_of_fail_cleanup(self):
"""Test that extremities are correctly calculated in the presence of
soft failed events.
Tests a graph like:
A <- SF1 <- SF2 <- B
Where SF* are soft failed, and with extremities of A and B
"""
# Create the room graph
event_id_a = self.create_and_send_event(self.room_id, self.user)
event_id_sf1 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_a]
)
event_id_sf2 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_sf1]
)
event_id_b = self.create_and_send_event(
self.room_id, self.user, False, [event_id_sf2]
)
# Add the new extremity and check the latest events are as expected
self.add_extremity(self.room_id, event_id_a)
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(set(latest_event_ids), set((event_id_a, event_id_b)))
# Run the background update and check it did the right thing
self.run_background_update()
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(latest_event_ids, [event_id_b])
def test_forked_graph_cleanup(self):
r"""Test that extremities are correctly calculated in the presence of
soft failed events.
Tests a graph like, where time flows down the page:
A B
/ \ /
/ \ /
SF1 SF2
| |
SF3 |
/ \ |
| \ |
C SF4
Where SF* are soft failed, and with them A, B and C marked as
extremities. This should resolve to B and C being marked as extremity.
"""
# Create the room graph
event_id_a = self.create_and_send_event(self.room_id, self.user)
event_id_b = self.create_and_send_event(self.room_id, self.user)
event_id_sf1 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_a]
)
event_id_sf2 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_a, event_id_b]
)
event_id_sf3 = self.create_and_send_event(
self.room_id, self.user, True, [event_id_sf1]
)
self.create_and_send_event(
self.room_id, self.user, True, [event_id_sf2, event_id_sf3]
) # SF4
event_id_c = self.create_and_send_event(
self.room_id, self.user, False, [event_id_sf3]
)
# Add the new extremity and check the latest events are as expected
self.add_extremity(self.room_id, event_id_a)
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(
set(latest_event_ids), set((event_id_a, event_id_b, event_id_c))
)
# Run the background update and check it did the right thing
self.run_background_update()
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(set(latest_event_ids), set([event_id_b, event_id_c]))
class CleanupExtremDummyEventsTestCase(HomeserverTestCase):
def make_homeserver(self, reactor, clock):
config = self.default_config()
config["cleanup_extremities_with_dummy_events"] = True
return self.setup_test_homeserver(config=config)
def prepare(self, reactor, clock, homeserver):
self.store = homeserver.get_datastore()
self.room_creator = homeserver.get_room_creation_handler()
# Create a test user and room
self.user = UserID("alice", "test")
self.requester = Requester(self.user, None, False, None, None)
info = self.get_success(self.room_creator.create_room(self.requester, {}))
self.room_id = info["room_id"]
def test_send_dummy_event(self):
# Create a bushy graph with 50 extremities.
event_id_start = self.create_and_send_event(self.room_id, self.user)
for _ in range(50):
self.create_and_send_event(
self.room_id, self.user, prev_event_ids=[event_id_start]
)
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertEqual(len(latest_event_ids), 50)
# Pump the reactor repeatedly so that the background updates have a
# chance to run.
self.pump(10 * 60)
latest_event_ids = self.get_success(
self.store.get_latest_event_ids_in_room(self.room_id)
)
self.assertTrue(len(latest_event_ids) < 10, len(latest_event_ids))
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