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watcha-synapse
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watcha-synapse/tests/test_state.py

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# -*- coding: utf-8 -*-
# Copyright 2014 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
from twisted.internet import defer
from synapse.events import FrozenEvent
from synapse.api.auth import Auth
from synapse.api.constants import EventTypes, Membership
from synapse.state import StateHandler
from .utils import MockClock
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 = str(_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, 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)
class StateTestCase(unittest.TestCase):
def setUp(self):
self.store = Mock(
spec_set=[
"get_state_groups",
"add_event_hashes",
]
)
hs = Mock(spec=[
"get_datastore", "get_auth", "get_state_handler", "get_clock",
])
hs.get_datastore.return_value = self.store
hs.get_state_handler.return_value = None
hs.get_auth.return_value = Auth(hs)
hs.get_clock.return_value = MockClock()
self.state = StateHandler(hs)
self.event_id = 0
@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,
state_key="creator",
content={"membership": "@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,
state_key="creator",
content={"membership": "@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_annotate_with_old_message(self):
event = create_event(type="test_message", name="event")
old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
context = yield self.state.compute_event_context(
event, old_state=old_state
)
for k, v in context.current_state.items():
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)
@defer.inlineCallbacks
def test_annotate_with_old_state(self):
event = create_event(type="state", state_key="", name="event")
old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
context = yield self.state.compute_event_context(
event, old_state=old_state
)
for k, v in context.current_state.items():
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)
@defer.inlineCallbacks
def test_trivial_annotate_message(self):
event = create_event(type="test_message", name="event")
old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
group_name = "group_name_1"
self.store.get_state_groups.return_value = {
group_name: old_state,
}
context = yield self.state.compute_event_context(event)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
)
self.assertEqual(group_name, context.state_group)
@defer.inlineCallbacks
def test_trivial_annotate_state(self):
event = create_event(type="state", state_key="", name="event")
old_state = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
group_name = "group_name_1"
self.store.get_state_groups.return_value = {
group_name: old_state,
}
context = yield self.state.compute_event_context(event)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
)
self.assertIsNone(context.state_group)
@defer.inlineCallbacks
def test_resolve_message_conflict(self):
event = create_event(type="test_message", name="event")
old_state_1 = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
old_state_2 = [
create_event(type="test1", state_key="1"),
create_event(type="test3", state_key="2"),
create_event(type="test4", state_key=""),
]
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(len(context.current_state), 5)
self.assertIsNone(context.state_group)
@defer.inlineCallbacks
def test_resolve_state_conflict(self):
event = create_event(type="test4", state_key="", name="event")
old_state_1 = [
create_event(type="test1", state_key="1"),
create_event(type="test1", state_key="2"),
create_event(type="test2", state_key=""),
]
old_state_2 = [
create_event(type="test1", state_key="1"),
create_event(type="test3", state_key="2"),
create_event(type="test4", state_key=""),
]
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(len(context.current_state), 5)
self.assertIsNone(context.state_group)
@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,
}
)
old_state_1 = [
member_event,
create_event(type="test1", state_key="1", depth=1),
]
old_state_2 = [
member_event,
create_event(type="test1", state_key="1", depth=2),
]
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(old_state_2[1], context.current_state[("test1", "1")])
# Reverse the depth to make sure we are actually using the depths
# during state resolution.
old_state_1 = [
member_event,
create_event(type="test1", state_key="1", depth=2),
]
old_state_2 = [
member_event,
create_event(type="test1", state_key="1", depth=1),
]
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(old_state_1[1], context.current_state[("test1", "1")])
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,
}
return self.state.compute_event_context(event)