synapse/tests/test_state.py

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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
#
# 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.
from tests import unittest
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from twisted.internet import defer
from synapse.events import FrozenEvent
from synapse.api.auth import Auth
from synapse.api.constants import EventTypes, Membership
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from synapse.state import StateHandler
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from .utils import MockClock
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from mock import Mock
_next_event_id = 1000
def create_event(name=None, type=None, state_key=None, depth=2, event_id=None,
prev_events=[], **kwargs):
global _next_event_id
if not event_id:
_next_event_id += 1
event_id = "$%s:test" % (_next_event_id,)
if not name:
if state_key is not None:
name = "<%s-%s, %s>" % (type, state_key, event_id,)
else:
name = "<%s, %s>" % (type, event_id,)
d = {
"event_id": event_id,
"type": type,
"sender": "@user_id:example.com",
"room_id": "!room_id:example.com",
"depth": depth,
"prev_events": prev_events,
}
if state_key is not None:
d["state_key"] = state_key
d.update(kwargs)
event = FrozenEvent(d)
return event
class StateGroupStore(object):
def __init__(self):
self._event_to_state_group = {}
self._group_to_state = {}
self._next_group = 1
def get_state_groups(self, room_id, event_ids):
groups = {}
for event_id in event_ids:
group = self._event_to_state_group.get(event_id)
if group:
groups[group] = self._group_to_state[group]
return defer.succeed(groups)
def store_state_groups(self, event, context):
if context.current_state is None:
return
state_events = context.current_state
if event.is_state():
state_events[(event.type, event.state_key)] = event
state_group = context.state_group
if not state_group:
state_group = self._next_group
self._next_group += 1
self._group_to_state[state_group] = state_events.values()
self._event_to_state_group[event.event_id] = state_group
class DictObj(dict):
def __init__(self, **kwargs):
super(DictObj, self).__init__(kwargs)
self.__dict__ = self
class Graph(object):
def __init__(self, nodes, edges):
events = {}
clobbered = set(events.keys())
for event_id, fields in nodes.items():
refs = edges.get(event_id)
if refs:
clobbered.difference_update(refs)
prev_events = [(r, {}) for r in refs]
else:
prev_events = []
events[event_id] = create_event(
event_id=event_id,
prev_events=prev_events,
**fields
)
self._leaves = clobbered
self._events = sorted(events.values(), key=lambda e: e.depth)
def walk(self):
return iter(self._events)
def get_leaves(self):
return (self._events[i] for i in self._leaves)
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class StateTestCase(unittest.TestCase):
def setUp(self):
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self.store = Mock(
spec_set=[
"get_state_groups",
"add_event_hashes",
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]
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)
hs = Mock(spec_set=[
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"get_datastore", "get_auth", "get_state_handler", "get_clock",
])
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hs.get_datastore.return_value = self.store
hs.get_state_handler.return_value = None
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hs.get_clock.return_value = MockClock()
hs.get_auth.return_value = Auth(hs)
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self.state = StateHandler(hs)
self.event_id = 0
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@defer.inlineCallbacks
def test_branch_no_conflict(self):
graph = Graph(
nodes={
"START": DictObj(
type=EventTypes.Create,
state_key="",
depth=1,
),
"A": DictObj(
type=EventTypes.Message,
depth=2,
),
"B": DictObj(
type=EventTypes.Message,
depth=3,
),
"C": DictObj(
type=EventTypes.Name,
state_key="",
depth=3,
),
"D": DictObj(
type=EventTypes.Message,
depth=4,
),
},
edges={
"A": ["START"],
"B": ["A"],
"C": ["A"],
"D": ["B", "C"]
}
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
context_store = {}
for event in graph.walk():
context = yield self.state.compute_event_context(event)
store.store_state_groups(event, context)
context_store[event.event_id] = context
self.assertEqual(2, len(context_store["D"].current_state))
@defer.inlineCallbacks
def test_branch_basic_conflict(self):
graph = Graph(
nodes={
"START": DictObj(
type=EventTypes.Create,
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state_key="",
content={"creator": "@user_id:example.com"},
depth=1,
),
"A": DictObj(
type=EventTypes.Member,
state_key="@user_id:example.com",
content={"membership": Membership.JOIN},
membership=Membership.JOIN,
depth=2,
),
"B": DictObj(
type=EventTypes.Name,
state_key="",
depth=3,
),
"C": DictObj(
type=EventTypes.Name,
state_key="",
depth=4,
),
"D": DictObj(
type=EventTypes.Message,
depth=5,
),
},
edges={
"A": ["START"],
"B": ["A"],
"C": ["A"],
"D": ["B", "C"]
}
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
context_store = {}
for event in graph.walk():
context = yield self.state.compute_event_context(event)
store.store_state_groups(event, context)
context_store[event.event_id] = context
self.assertSetEqual(
{"START", "A", "C"},
{e.event_id for e in context_store["D"].current_state.values()}
)
@defer.inlineCallbacks
def test_branch_have_banned_conflict(self):
graph = Graph(
nodes={
"START": DictObj(
type=EventTypes.Create,
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state_key="",
content={"creator": "@user_id:example.com"},
depth=1,
),
"A": DictObj(
type=EventTypes.Member,
state_key="@user_id:example.com",
content={"membership": Membership.JOIN},
membership=Membership.JOIN,
depth=2,
),
"B": DictObj(
type=EventTypes.Name,
state_key="",
depth=3,
),
"C": DictObj(
type=EventTypes.Member,
state_key="@user_id_2:example.com",
content={"membership": Membership.BAN},
membership=Membership.BAN,
depth=4,
),
"D": DictObj(
type=EventTypes.Name,
state_key="",
depth=4,
sender="@user_id_2:example.com",
),
"E": DictObj(
type=EventTypes.Message,
depth=5,
),
},
edges={
"A": ["START"],
"B": ["A"],
"C": ["B"],
"D": ["B"],
"E": ["C", "D"]
}
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
context_store = {}
for event in graph.walk():
context = yield self.state.compute_event_context(event)
store.store_state_groups(event, context)
context_store[event.event_id] = context
self.assertSetEqual(
{"START", "A", "B", "C"},
{e.event_id for e in context_store["E"].current_state.values()}
)
@defer.inlineCallbacks
def test_branch_have_perms_conflict(self):
userid1 = "@user_id:example.com"
userid2 = "@user_id2:example.com"
nodes = {
"A1": DictObj(
type=EventTypes.Create,
state_key="",
content={"creator": userid1},
depth=1,
),
"A2": DictObj(
type=EventTypes.Member,
state_key=userid1,
content={"membership": Membership.JOIN},
membership=Membership.JOIN,
),
"A3": DictObj(
type=EventTypes.Member,
state_key=userid2,
content={"membership": Membership.JOIN},
membership=Membership.JOIN,
),
"A4": DictObj(
type=EventTypes.PowerLevels,
state_key="",
content={
"events": {"m.room.name": 50},
"users": {userid1: 100,
userid2: 60},
},
),
"A5": DictObj(
type=EventTypes.Name,
state_key="",
),
"B": DictObj(
type=EventTypes.PowerLevels,
state_key="",
content={
"events": {"m.room.name": 50},
"users": {userid2: 30},
},
),
"C": DictObj(
type=EventTypes.Name,
state_key="",
sender=userid2,
),
"D": DictObj(
type=EventTypes.Message,
),
}
edges = {
"A2": ["A1"],
"A3": ["A2"],
"A4": ["A3"],
"A5": ["A4"],
"B": ["A5"],
"C": ["A5"],
"D": ["B", "C"]
}
self._add_depths(nodes, edges)
graph = Graph(nodes, edges)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
context_store = {}
for event in graph.walk():
context = yield self.state.compute_event_context(event)
store.store_state_groups(event, context)
context_store[event.event_id] = context
self.assertSetEqual(
{"A1", "A2", "A3", "A5", "B"},
{e.event_id for e in context_store["D"].current_state.values()}
)
def _add_depths(self, nodes, edges):
def _get_depth(ev):
node = nodes[ev]
if 'depth' not in node:
prevs = edges[ev]
depth = max(_get_depth(prev) for prev in prevs) + 1
node['depth'] = depth
return node['depth']
for n in nodes:
_get_depth(n)
@defer.inlineCallbacks
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def test_annotate_with_old_message(self):
event = create_event(type="test_message", name="event")
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old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
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]
context = yield self.state.compute_event_context(
event, old_state=old_state
)
for k, v in context.current_state.items():
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type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set(old_state), set(context.current_state.values())
)
self.assertIsNone(context.state_group)
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@defer.inlineCallbacks
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def test_annotate_with_old_state(self):
event = create_event(type="state", state_key="", name="event")
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old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
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]
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context = yield self.state.compute_event_context(
event, old_state=old_state
)
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for k, v in context.current_state.items():
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type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
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self.assertEqual(
set(old_state),
set(context.current_state.values())
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)
self.assertIsNone(context.state_group)
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@defer.inlineCallbacks
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def test_trivial_annotate_message(self):
event = create_event(type="test_message", name="event")
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old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
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]
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group_name = "group_name_1"
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self.store.get_state_groups.return_value = {
group_name: old_state,
}
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context = yield self.state.compute_event_context(event)
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for k, v in context.current_state.items():
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type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
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self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
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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):
event = create_event(type="state", state_key="", name="event")
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old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
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]
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group_name = "group_name_1"
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self.store.get_state_groups.return_value = {
group_name: old_state,
}
context = yield self.state.compute_event_context(event)
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for k, v in context.current_state.items():
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type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
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self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
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)
self.assertIsNone(context.state_group)
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@defer.inlineCallbacks
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def test_resolve_message_conflict(self):
event = create_event(type="test_message", name="event")
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creation = create_event(
type=EventTypes.Create, state_key=""
)
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old_state_1 = [
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creation,
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
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old_state_2 = [
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creation,
create_event(type="test1", state_key="1"),
create_event(type="test3", state_key="2"),
create_event(type="test4", state_key=""),
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]
context = yield self._get_context(event, old_state_1, old_state_2)
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self.assertEqual(len(context.current_state), 6)
self.assertIsNone(context.state_group)
@defer.inlineCallbacks
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def test_resolve_state_conflict(self):
event = create_event(type="test4", state_key="", name="event")
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creation = create_event(
type=EventTypes.Create, state_key=""
)
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old_state_1 = [
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creation,
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
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old_state_2 = [
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creation,
create_event(type="test1", state_key="1"),
create_event(type="test3", state_key="2"),
create_event(type="test4", state_key=""),
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]
context = yield self._get_context(event, old_state_1, old_state_2)
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self.assertEqual(len(context.current_state), 6)
self.assertIsNone(context.state_group)
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@defer.inlineCallbacks
def test_standard_depth_conflict(self):
event = create_event(type="test4", name="event")
member_event = create_event(
type=EventTypes.Member,
state_key="@user_id:example.com",
content={
"membership": Membership.JOIN,
}
)
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creation = create_event(
type=EventTypes.Create, state_key="",
content={"creator": "@foo:bar"}
)
old_state_1 = [
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creation,
member_event,
create_event(type="test1", state_key="1", depth=1),
]
old_state_2 = [
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creation,
member_event,
create_event(type="test1", state_key="1", depth=2),
]
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context = yield self._get_context(event, old_state_1, old_state_2)
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self.assertEqual(old_state_2[2], context.current_state[("test1", "1")])
# Reverse the depth to make sure we are actually using the depths
# during state resolution.
old_state_1 = [
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creation,
member_event,
create_event(type="test1", state_key="1", depth=2),
]
old_state_2 = [
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creation,
member_event,
create_event(type="test1", state_key="1", depth=1),
]
context = yield self._get_context(event, old_state_1, old_state_2)
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self.assertEqual(old_state_1[2], context.current_state[("test1", "1")])
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def _get_context(self, event, old_state_1, old_state_2):
group_name_1 = "group_name_1"
group_name_2 = "group_name_2"
self.store.get_state_groups.return_value = {
group_name_1: old_state_1,
group_name_2: old_state_2,
}
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return self.state.compute_event_context(event)