720 lines
23 KiB
Python
720 lines
23 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
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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, Optional
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from unittest.mock import Mock
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from twisted.internet import defer
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from synapse.api.auth import Auth
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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.events import make_event_from_dict
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from synapse.events.snapshot import EventContext
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from synapse.state import StateHandler, StateResolutionHandler
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from tests import unittest
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from .utils import MockClock, default_config
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_next_event_id = 1000
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def create_event(
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name=None,
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type=None,
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state_key=None,
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depth=2,
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event_id=None,
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prev_events: Optional[List[str]] = None,
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**kwargs,
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):
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global _next_event_id
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if not event_id:
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_next_event_id += 1
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event_id = "$%s:test" % (_next_event_id,)
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if not name:
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if state_key is not None:
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name = "<%s-%s, %s>" % (type, state_key, event_id)
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else:
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name = "<%s, %s>" % (type, event_id)
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d = {
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"event_id": event_id,
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"type": type,
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"sender": "@user_id:example.com",
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"room_id": "!room_id:example.com",
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"depth": depth,
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"prev_events": prev_events or [],
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}
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if state_key is not None:
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d["state_key"] = state_key
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d.update(kwargs)
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event = make_event_from_dict(d)
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return event
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class StateGroupStore:
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def __init__(self):
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self._event_to_state_group = {}
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self._group_to_state = {}
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self._event_id_to_event = {}
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self._next_group = 1
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async def get_state_groups_ids(self, room_id, event_ids):
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groups = {}
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for event_id in event_ids:
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group = self._event_to_state_group.get(event_id)
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if group:
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groups[group] = self._group_to_state[group]
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return groups
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async def store_state_group(
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self, event_id, room_id, prev_group, delta_ids, current_state_ids
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):
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state_group = self._next_group
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self._next_group += 1
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self._group_to_state[state_group] = dict(current_state_ids)
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return state_group
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async def get_events(self, event_ids, **kwargs):
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return {
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e_id: self._event_id_to_event[e_id]
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for e_id in event_ids
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if e_id in self._event_id_to_event
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}
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async def get_state_group_delta(self, name):
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return (None, None)
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def register_events(self, events):
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for e in events:
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self._event_id_to_event[e.event_id] = e
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def register_event_context(self, event, context):
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self._event_to_state_group[event.event_id] = context.state_group
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def register_event_id_state_group(self, event_id, state_group):
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self._event_to_state_group[event_id] = state_group
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async def get_room_version_id(self, room_id):
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return RoomVersions.V1.identifier
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class DictObj(dict):
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def __init__(self, **kwargs):
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super().__init__(kwargs)
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self.__dict__ = self
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class Graph:
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def __init__(self, nodes, edges):
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events = {}
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clobbered = set(events.keys())
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for event_id, fields in nodes.items():
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refs = edges.get(event_id)
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if refs:
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clobbered.difference_update(refs)
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prev_events = [(r, {}) for r in refs]
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else:
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prev_events = []
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events[event_id] = create_event(
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event_id=event_id, prev_events=prev_events, **fields
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)
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self._leaves = clobbered
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self._events = sorted(events.values(), key=lambda e: e.depth)
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def walk(self):
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return iter(self._events)
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def get_leaves(self):
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return (self._events[i] for i in self._leaves)
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class StateTestCase(unittest.TestCase):
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def setUp(self):
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self.store = StateGroupStore()
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storage = Mock(main=self.store, state=self.store)
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hs = Mock(
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spec_set=[
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"config",
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"get_datastore",
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"get_storage",
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"get_auth",
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"get_state_handler",
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"get_clock",
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"get_state_resolution_handler",
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"hostname",
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]
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)
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hs.config = default_config("tesths", True)
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hs.get_datastore.return_value = self.store
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hs.get_state_handler.return_value = None
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hs.get_clock.return_value = MockClock()
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hs.get_auth.return_value = Auth(hs)
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hs.get_state_resolution_handler = lambda: StateResolutionHandler(hs)
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hs.get_storage.return_value = storage
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self.state = StateHandler(hs)
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self.event_id = 0
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@defer.inlineCallbacks
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def test_branch_no_conflict(self):
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graph = Graph(
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nodes={
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"START": DictObj(
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type=EventTypes.Create, state_key="", content={}, depth=1
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),
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"A": DictObj(type=EventTypes.Message, depth=2),
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"B": DictObj(type=EventTypes.Message, depth=3),
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"C": DictObj(type=EventTypes.Name, state_key="", depth=3),
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"D": DictObj(type=EventTypes.Message, depth=4),
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},
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edges={"A": ["START"], "B": ["A"], "C": ["A"], "D": ["B", "C"]},
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)
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self.store.register_events(graph.walk())
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context_store = {} # type: dict[str, EventContext]
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for event in graph.walk():
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event)
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)
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self.store.register_event_context(event, context)
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context_store[event.event_id] = context
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ctx_c = context_store["C"]
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ctx_d = context_store["D"]
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prev_state_ids = yield defer.ensureDeferred(ctx_d.get_prev_state_ids())
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self.assertEqual(2, len(prev_state_ids))
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self.assertEqual(ctx_c.state_group, ctx_d.state_group_before_event)
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self.assertEqual(ctx_d.state_group_before_event, ctx_d.state_group)
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@defer.inlineCallbacks
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def test_branch_basic_conflict(self):
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graph = Graph(
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nodes={
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"START": DictObj(
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type=EventTypes.Create,
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state_key="",
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content={"creator": "@user_id:example.com"},
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depth=1,
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),
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"A": DictObj(
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type=EventTypes.Member,
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state_key="@user_id:example.com",
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content={"membership": Membership.JOIN},
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membership=Membership.JOIN,
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depth=2,
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),
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"B": DictObj(type=EventTypes.Name, state_key="", depth=3),
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"C": DictObj(type=EventTypes.Name, state_key="", depth=4),
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"D": DictObj(type=EventTypes.Message, depth=5),
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},
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edges={"A": ["START"], "B": ["A"], "C": ["A"], "D": ["B", "C"]},
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)
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self.store.register_events(graph.walk())
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context_store = {}
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for event in graph.walk():
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event)
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)
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self.store.register_event_context(event, context)
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context_store[event.event_id] = context
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# C ends up winning the resolution between B and C
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ctx_c = context_store["C"]
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ctx_d = context_store["D"]
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prev_state_ids = yield defer.ensureDeferred(ctx_d.get_prev_state_ids())
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self.assertSetEqual({"START", "A", "C"}, set(prev_state_ids.values()))
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self.assertEqual(ctx_c.state_group, ctx_d.state_group_before_event)
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self.assertEqual(ctx_d.state_group_before_event, ctx_d.state_group)
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@defer.inlineCallbacks
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def test_branch_have_banned_conflict(self):
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graph = Graph(
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nodes={
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"START": DictObj(
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type=EventTypes.Create,
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state_key="",
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content={"creator": "@user_id:example.com"},
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depth=1,
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),
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"A": DictObj(
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type=EventTypes.Member,
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state_key="@user_id:example.com",
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content={"membership": Membership.JOIN},
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membership=Membership.JOIN,
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depth=2,
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),
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"B": DictObj(type=EventTypes.Name, state_key="", depth=3),
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"C": DictObj(
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type=EventTypes.Member,
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state_key="@user_id_2:example.com",
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content={"membership": Membership.BAN},
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membership=Membership.BAN,
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depth=4,
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),
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"D": DictObj(
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type=EventTypes.Name,
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state_key="",
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depth=4,
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sender="@user_id_2:example.com",
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),
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"E": DictObj(type=EventTypes.Message, depth=5),
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},
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edges={"A": ["START"], "B": ["A"], "C": ["B"], "D": ["B"], "E": ["C", "D"]},
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)
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self.store.register_events(graph.walk())
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context_store = {}
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for event in graph.walk():
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event)
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)
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self.store.register_event_context(event, context)
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context_store[event.event_id] = context
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# C ends up winning the resolution between C and D because bans win over other
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# changes
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ctx_c = context_store["C"]
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ctx_e = context_store["E"]
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prev_state_ids = yield defer.ensureDeferred(ctx_e.get_prev_state_ids())
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self.assertSetEqual({"START", "A", "B", "C"}, set(prev_state_ids.values()))
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self.assertEqual(ctx_c.state_group, ctx_e.state_group_before_event)
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self.assertEqual(ctx_e.state_group_before_event, ctx_e.state_group)
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@defer.inlineCallbacks
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def test_branch_have_perms_conflict(self):
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userid1 = "@user_id:example.com"
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userid2 = "@user_id2:example.com"
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nodes = {
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"A1": DictObj(
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type=EventTypes.Create,
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state_key="",
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content={"creator": userid1},
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depth=1,
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),
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"A2": DictObj(
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type=EventTypes.Member,
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state_key=userid1,
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content={"membership": Membership.JOIN},
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membership=Membership.JOIN,
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),
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"A3": DictObj(
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type=EventTypes.Member,
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state_key=userid2,
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content={"membership": Membership.JOIN},
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membership=Membership.JOIN,
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),
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"A4": DictObj(
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type=EventTypes.PowerLevels,
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state_key="",
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content={
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"events": {"m.room.name": 50},
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"users": {userid1: 100, userid2: 60},
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},
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),
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"A5": DictObj(type=EventTypes.Name, state_key=""),
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"B": DictObj(
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type=EventTypes.PowerLevels,
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state_key="",
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content={"events": {"m.room.name": 50}, "users": {userid2: 30}},
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),
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"C": DictObj(type=EventTypes.Name, state_key="", sender=userid2),
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"D": DictObj(type=EventTypes.Message),
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}
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edges = {
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"A2": ["A1"],
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"A3": ["A2"],
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"A4": ["A3"],
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"A5": ["A4"],
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"B": ["A5"],
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"C": ["A5"],
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"D": ["B", "C"],
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}
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self._add_depths(nodes, edges)
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graph = Graph(nodes, edges)
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self.store.register_events(graph.walk())
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context_store = {}
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for event in graph.walk():
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event)
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)
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self.store.register_event_context(event, context)
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context_store[event.event_id] = context
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# B ends up winning the resolution between B and C because power levels
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# win over other changes.
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ctx_b = context_store["B"]
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ctx_d = context_store["D"]
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prev_state_ids = yield defer.ensureDeferred(ctx_d.get_prev_state_ids())
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self.assertSetEqual({"A1", "A2", "A3", "A5", "B"}, set(prev_state_ids.values()))
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self.assertEqual(ctx_b.state_group, ctx_d.state_group_before_event)
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self.assertEqual(ctx_d.state_group_before_event, ctx_d.state_group)
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def _add_depths(self, nodes, edges):
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def _get_depth(ev):
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node = nodes[ev]
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if "depth" not in node:
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prevs = edges[ev]
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depth = max(_get_depth(prev) for prev in prevs) + 1
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node["depth"] = depth
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return node["depth"]
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for n in nodes:
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_get_depth(n)
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@defer.inlineCallbacks
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def test_annotate_with_old_message(self):
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event = create_event(type="test_message", name="event")
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old_state = [
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create_event(type="test1", state_key="1"),
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create_event(type="test1", state_key="2"),
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create_event(type="test2", state_key=""),
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]
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event, old_state=old_state)
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)
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prev_state_ids = yield defer.ensureDeferred(context.get_prev_state_ids())
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self.assertCountEqual((e.event_id for e in old_state), prev_state_ids.values())
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current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
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self.assertCountEqual(
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(e.event_id for e in old_state), current_state_ids.values()
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)
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self.assertIsNotNone(context.state_group_before_event)
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self.assertEqual(context.state_group_before_event, context.state_group)
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@defer.inlineCallbacks
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def test_annotate_with_old_state(self):
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event = create_event(type="state", state_key="", name="event")
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old_state = [
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create_event(type="test1", state_key="1"),
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create_event(type="test1", state_key="2"),
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create_event(type="test2", state_key=""),
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]
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context = yield defer.ensureDeferred(
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self.state.compute_event_context(event, old_state=old_state)
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)
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prev_state_ids = yield defer.ensureDeferred(context.get_prev_state_ids())
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self.assertCountEqual((e.event_id for e in old_state), prev_state_ids.values())
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current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
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self.assertCountEqual(
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(e.event_id for e in old_state + [event]), current_state_ids.values()
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)
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self.assertIsNotNone(context.state_group_before_event)
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self.assertNotEqual(context.state_group_before_event, context.state_group)
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self.assertEqual(context.state_group_before_event, context.prev_group)
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self.assertEqual({("state", ""): event.event_id}, context.delta_ids)
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@defer.inlineCallbacks
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def test_trivial_annotate_message(self):
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prev_event_id = "prev_event_id"
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event = create_event(
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type="test_message", name="event2", prev_events=[(prev_event_id, {})]
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)
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old_state = [
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create_event(type="test1", state_key="1"),
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create_event(type="test1", state_key="2"),
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create_event(type="test2", state_key=""),
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]
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group_name = yield defer.ensureDeferred(
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self.store.store_state_group(
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prev_event_id,
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event.room_id,
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None,
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None,
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{(e.type, e.state_key): e.event_id for e in old_state},
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)
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)
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self.store.register_event_id_state_group(prev_event_id, group_name)
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context = yield defer.ensureDeferred(self.state.compute_event_context(event))
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current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
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self.assertEqual(
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{e.event_id for e in old_state}, set(current_state_ids.values())
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)
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self.assertEqual(group_name, context.state_group)
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@defer.inlineCallbacks
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def test_trivial_annotate_state(self):
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prev_event_id = "prev_event_id"
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event = create_event(
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type="state", state_key="", name="event2", prev_events=[(prev_event_id, {})]
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)
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old_state = [
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create_event(type="test1", state_key="1"),
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create_event(type="test1", state_key="2"),
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create_event(type="test2", state_key=""),
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]
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group_name = yield defer.ensureDeferred(
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self.store.store_state_group(
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prev_event_id,
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event.room_id,
|
|
None,
|
|
None,
|
|
{(e.type, e.state_key): e.event_id for e in old_state},
|
|
)
|
|
)
|
|
self.store.register_event_id_state_group(prev_event_id, group_name)
|
|
|
|
context = yield defer.ensureDeferred(self.state.compute_event_context(event))
|
|
|
|
prev_state_ids = yield defer.ensureDeferred(context.get_prev_state_ids())
|
|
|
|
self.assertEqual({e.event_id for e in old_state}, set(prev_state_ids.values()))
|
|
|
|
self.assertIsNotNone(context.state_group)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_resolve_message_conflict(self):
|
|
prev_event_id1 = "event_id1"
|
|
prev_event_id2 = "event_id2"
|
|
event = create_event(
|
|
type="test_message",
|
|
name="event3",
|
|
prev_events=[(prev_event_id1, {}), (prev_event_id2, {})],
|
|
)
|
|
|
|
creation = create_event(type=EventTypes.Create, state_key="")
|
|
|
|
old_state_1 = [
|
|
creation,
|
|
create_event(type="test1", state_key="1"),
|
|
create_event(type="test1", state_key="2"),
|
|
create_event(type="test2", state_key=""),
|
|
]
|
|
|
|
old_state_2 = [
|
|
creation,
|
|
create_event(type="test1", state_key="1"),
|
|
create_event(type="test3", state_key="2"),
|
|
create_event(type="test4", state_key=""),
|
|
]
|
|
|
|
self.store.register_events(old_state_1)
|
|
self.store.register_events(old_state_2)
|
|
|
|
context = yield self._get_context(
|
|
event, prev_event_id1, old_state_1, prev_event_id2, old_state_2
|
|
)
|
|
|
|
current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
|
|
|
|
self.assertEqual(len(current_state_ids), 6)
|
|
|
|
self.assertIsNotNone(context.state_group)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_resolve_state_conflict(self):
|
|
prev_event_id1 = "event_id1"
|
|
prev_event_id2 = "event_id2"
|
|
event = create_event(
|
|
type="test4",
|
|
state_key="",
|
|
name="event",
|
|
prev_events=[(prev_event_id1, {}), (prev_event_id2, {})],
|
|
)
|
|
|
|
creation = create_event(type=EventTypes.Create, state_key="")
|
|
|
|
old_state_1 = [
|
|
creation,
|
|
create_event(type="test1", state_key="1"),
|
|
create_event(type="test1", state_key="2"),
|
|
create_event(type="test2", state_key=""),
|
|
]
|
|
|
|
old_state_2 = [
|
|
creation,
|
|
create_event(type="test1", state_key="1"),
|
|
create_event(type="test3", state_key="2"),
|
|
create_event(type="test4", state_key=""),
|
|
]
|
|
|
|
store = StateGroupStore()
|
|
store.register_events(old_state_1)
|
|
store.register_events(old_state_2)
|
|
self.store.get_events = store.get_events
|
|
|
|
context = yield self._get_context(
|
|
event, prev_event_id1, old_state_1, prev_event_id2, old_state_2
|
|
)
|
|
|
|
current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
|
|
|
|
self.assertEqual(len(current_state_ids), 6)
|
|
|
|
self.assertIsNotNone(context.state_group)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_standard_depth_conflict(self):
|
|
prev_event_id1 = "event_id1"
|
|
prev_event_id2 = "event_id2"
|
|
event = create_event(
|
|
type="test4",
|
|
name="event",
|
|
prev_events=[(prev_event_id1, {}), (prev_event_id2, {})],
|
|
)
|
|
|
|
member_event = create_event(
|
|
type=EventTypes.Member,
|
|
state_key="@user_id:example.com",
|
|
content={"membership": Membership.JOIN},
|
|
)
|
|
|
|
power_levels = create_event(
|
|
type=EventTypes.PowerLevels,
|
|
state_key="",
|
|
content={"users": {"@foo:bar": "100", "@user_id:example.com": "100"}},
|
|
)
|
|
|
|
creation = create_event(
|
|
type=EventTypes.Create, state_key="", content={"creator": "@foo:bar"}
|
|
)
|
|
|
|
old_state_1 = [
|
|
creation,
|
|
power_levels,
|
|
member_event,
|
|
create_event(type="test1", state_key="1", depth=1),
|
|
]
|
|
|
|
old_state_2 = [
|
|
creation,
|
|
power_levels,
|
|
member_event,
|
|
create_event(type="test1", state_key="1", depth=2),
|
|
]
|
|
|
|
store = StateGroupStore()
|
|
store.register_events(old_state_1)
|
|
store.register_events(old_state_2)
|
|
self.store.get_events = store.get_events
|
|
|
|
context = yield self._get_context(
|
|
event, prev_event_id1, old_state_1, prev_event_id2, old_state_2
|
|
)
|
|
|
|
current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
|
|
|
|
self.assertEqual(old_state_2[3].event_id, current_state_ids[("test1", "1")])
|
|
|
|
# Reverse the depth to make sure we are actually using the depths
|
|
# during state resolution.
|
|
|
|
old_state_1 = [
|
|
creation,
|
|
power_levels,
|
|
member_event,
|
|
create_event(type="test1", state_key="1", depth=2),
|
|
]
|
|
|
|
old_state_2 = [
|
|
creation,
|
|
power_levels,
|
|
member_event,
|
|
create_event(type="test1", state_key="1", depth=1),
|
|
]
|
|
|
|
store.register_events(old_state_1)
|
|
store.register_events(old_state_2)
|
|
|
|
context = yield self._get_context(
|
|
event, prev_event_id1, old_state_1, prev_event_id2, old_state_2
|
|
)
|
|
|
|
current_state_ids = yield defer.ensureDeferred(context.get_current_state_ids())
|
|
|
|
self.assertEqual(old_state_1[3].event_id, current_state_ids[("test1", "1")])
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_context(
|
|
self, event, prev_event_id_1, old_state_1, prev_event_id_2, old_state_2
|
|
):
|
|
sg1 = yield defer.ensureDeferred(
|
|
self.store.store_state_group(
|
|
prev_event_id_1,
|
|
event.room_id,
|
|
None,
|
|
None,
|
|
{(e.type, e.state_key): e.event_id for e in old_state_1},
|
|
)
|
|
)
|
|
self.store.register_event_id_state_group(prev_event_id_1, sg1)
|
|
|
|
sg2 = yield defer.ensureDeferred(
|
|
self.store.store_state_group(
|
|
prev_event_id_2,
|
|
event.room_id,
|
|
None,
|
|
None,
|
|
{(e.type, e.state_key): e.event_id for e in old_state_2},
|
|
)
|
|
)
|
|
self.store.register_event_id_state_group(prev_event_id_2, sg2)
|
|
|
|
result = yield defer.ensureDeferred(self.state.compute_event_context(event))
|
|
return result
|