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| -rw-r--r-- | tests/storage/test_cleanup_extrems.py | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/tests/storage/test_cleanup_extrems.py b/tests/storage/test_cleanup_extrems.py new file mode 100644 index 0000000000..6dda66ecd3 --- /dev/null +++ b/tests/storage/test_cleanup_extrems.py @@ -0,0 +1,248 @@ +# -*- 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.api.constants import EventTypes +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.event_creator = homeserver.get_event_creation_handler() + 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 create_and_send_event(self, soft_failed=False, prev_event_ids=None): + """Create and send an event. + + Args: + soft_failed (bool): Whether to create a soft failed event or not + prev_event_ids (list[str]|None): Explicitly set the prev events, + or if None just use the default + + Returns: + str: The new event's ID. + """ + prev_events_and_hashes = None + if prev_event_ids: + prev_events_and_hashes = [[p, {}, 0] for p in prev_event_ids] + + event, context = self.get_success( + self.event_creator.create_event( + self.requester, + { + "type": EventTypes.Message, + "room_id": self.room_id, + "sender": self.user.to_string(), + "content": {"body": "", "msgtype": "m.text"}, + }, + prev_events_and_hashes=prev_events_and_hashes, + ) + ) + + if soft_failed: + event.internal_metadata.soft_failed = True + + self.get_success( + self.event_creator.send_nonmember_event(self.requester, event, context) + ) + + return event.event_id + + def add_extremity(self, event_id): + """Add the given event as an extremity to the room. + """ + self.get_success( + self.store._simple_insert( + table="event_forward_extremities", + values={"room_id": self.room_id, "event_id": event_id}, + desc="test_add_extremity", + ) + ) + + self.store.get_latest_event_ids_in_room.invalidate((self.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() + event_id_2 = self.create_and_send_event(True, [event_id_1]) + event_id_3 = self.create_and_send_event(True, [event_id_2]) + event_id_4 = self.create_and_send_event(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() + event_id_sf1 = self.create_and_send_event(True, [event_id_a]) + event_id_b = self.create_and_send_event(False, [event_id_sf1]) + + # Add the new extremity and check the latest events are as expected + self.add_extremity(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() + event_id_sf1 = self.create_and_send_event(True, [event_id_a]) + event_id_sf2 = self.create_and_send_event(True, [event_id_sf1]) + event_id_b = self.create_and_send_event(False, [event_id_sf2]) + + # Add the new extremity and check the latest events are as expected + self.add_extremity(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() + event_id_b = self.create_and_send_event() + event_id_sf1 = self.create_and_send_event(True, [event_id_a]) + event_id_sf2 = self.create_and_send_event(True, [event_id_a, event_id_b]) + event_id_sf3 = self.create_and_send_event(True, [event_id_sf1]) + self.create_and_send_event(True, [event_id_sf2, event_id_sf3]) # SF4 + event_id_c = self.create_and_send_event(False, [event_id_sf3]) + + # Add the new extremity and check the latest events are as expected + self.add_extremity(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])) |