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4b965c862d
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
331 lines
13 KiB
Python
331 lines
13 KiB
Python
# Copyright 2020 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 synapse.api.constants import EventTypes, Membership
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from synapse.api.room_versions import RoomVersions
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from synapse.federation.federation_base import event_from_pdu_json
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from synapse.rest import admin
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from synapse.rest.client.v1 import login, room
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from tests.unittest import HomeserverTestCase
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class ExtremPruneTestCase(HomeserverTestCase):
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servlets = [
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admin.register_servlets,
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room.register_servlets,
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login.register_servlets,
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]
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def prepare(self, reactor, clock, homeserver):
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self.state = self.hs.get_state_handler()
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self.persistence = self.hs.get_storage().persistence
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self.store = self.hs.get_datastore()
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self.register_user("user", "pass")
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self.token = self.login("user", "pass")
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self.room_id = self.helper.create_room_as(
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"user", room_version=RoomVersions.V6.identifier, tok=self.token
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)
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body = self.helper.send(self.room_id, body="Test", tok=self.token)
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local_message_event_id = body["event_id"]
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# Fudge a remote event and persist it. This will be the extremity before
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# the gap.
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self.remote_event_1 = event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"state_key": "@user:other",
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"content": {},
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"room_id": self.room_id,
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"sender": "@user:other",
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"depth": 5,
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"prev_events": [local_message_event_id],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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self.persist_event(self.remote_event_1)
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# Check that the current extremities is the remote event.
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self.assert_extremities([self.remote_event_1.event_id])
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def persist_event(self, event, state=None):
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"""Persist the event, with optional state"""
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context = self.get_success(
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self.state.compute_event_context(event, old_state=state)
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)
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self.get_success(self.persistence.persist_event(event, context))
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def assert_extremities(self, expected_extremities):
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"""Assert the current extremities for the room"""
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extremities = self.get_success(
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self.store.get_prev_events_for_room(self.room_id)
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)
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self.assertCountEqual(extremities, expected_extremities)
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def test_prune_gap(self):
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"""Test that we drop extremities after a gap when we see an event from
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the same domain.
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"""
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other",
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"depth": 50,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([remote_event_2.event_id])
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def test_do_not_prune_gap_if_state_different(self):
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"""Test that we don't prune extremities after a gap if the resolved
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state is different.
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"""
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# Fudge a second event which points to an event we don't have.
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Message,
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"state_key": "@user:other",
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"content": {},
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"room_id": self.room_id,
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"sender": "@user:other",
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"depth": 10,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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# Now we persist it with state with a dropped history visibility
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# setting. The state resolution across the old and new event will then
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# include it, and so the resolved state won't match the new state.
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state_before_gap = dict(
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self.get_success(self.state.get_current_state(self.room_id))
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)
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state_before_gap.pop(("m.room.history_visibility", ""))
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context = self.get_success(
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self.state.compute_event_context(
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remote_event_2, old_state=state_before_gap.values()
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)
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)
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self.get_success(self.persistence.persist_event(remote_event_2, context))
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# Check that we haven't dropped the old extremity.
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self.assert_extremities([self.remote_event_1.event_id, remote_event_2.event_id])
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def test_prune_gap_if_old(self):
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"""Test that we drop extremities after a gap when the previous extremity
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is "old"
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"""
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# Advance the clock for many days to make the old extremity "old". We
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# also set the depth to "lots".
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self.reactor.advance(7 * 24 * 60 * 60)
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other2",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other2",
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"depth": 10000,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([remote_event_2.event_id])
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def test_do_not_prune_gap_if_other_server(self):
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"""Test that we do not drop extremities after a gap when we see an event
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from a different domain.
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"""
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other2",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other2",
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"depth": 10,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([self.remote_event_1.event_id, remote_event_2.event_id])
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def test_prune_gap_if_dummy_remote(self):
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"""Test that we drop extremities after a gap when the previous extremity
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is a local dummy event and only points to remote events.
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"""
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body = self.helper.send_event(
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self.room_id, type=EventTypes.Dummy, content={}, tok=self.token
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)
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local_message_event_id = body["event_id"]
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self.assert_extremities([local_message_event_id])
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# Advance the clock for many days to make the old extremity "old". We
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# also set the depth to "lots".
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self.reactor.advance(7 * 24 * 60 * 60)
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other2",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other2",
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"depth": 10000,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([remote_event_2.event_id])
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def test_prune_gap_if_dummy_local(self):
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"""Test that we don't drop extremities after a gap when the previous
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extremity is a local dummy event and points to local events.
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"""
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body = self.helper.send(self.room_id, body="Test", tok=self.token)
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body = self.helper.send_event(
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self.room_id, type=EventTypes.Dummy, content={}, tok=self.token
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)
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local_message_event_id = body["event_id"]
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self.assert_extremities([local_message_event_id])
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# Advance the clock for many days to make the old extremity "old". We
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# also set the depth to "lots".
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self.reactor.advance(7 * 24 * 60 * 60)
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other2",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other2",
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"depth": 10000,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([remote_event_2.event_id, local_message_event_id])
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def test_do_not_prune_gap_if_not_dummy(self):
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"""Test that we do not drop extremities after a gap when the previous extremity
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is not a dummy event.
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"""
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body = self.helper.send(self.room_id, body="test", tok=self.token)
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local_message_event_id = body["event_id"]
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self.assert_extremities([local_message_event_id])
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# Fudge a second event which points to an event we don't have. This is a
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# state event so that the state changes (otherwise we won't prune the
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# extremity as they'll have the same state group).
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remote_event_2 = event_from_pdu_json(
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{
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"type": EventTypes.Member,
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"state_key": "@user:other2",
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"content": {"membership": Membership.JOIN},
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"room_id": self.room_id,
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"sender": "@user:other2",
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"depth": 10000,
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"prev_events": ["$some_unknown_message"],
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"auth_events": [],
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"origin_server_ts": self.clock.time_msec(),
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},
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RoomVersions.V6,
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)
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state_before_gap = self.get_success(self.state.get_current_state(self.room_id))
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self.persist_event(remote_event_2, state=state_before_gap.values())
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# Check the new extremity is just the new remote event.
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self.assert_extremities([local_message_event_id, remote_event_2.event_id])
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