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synapse/tests/handlers/test_space_summary.py
Patrick Cloke 27c375f812
Sort child events according to MSC1772 for the spaces summary API. (#9954)
This should help ensure that equivalent results are achieved between
homeservers querying for the summary of a space.

This implements modified MSC1772 rules, according to MSC2946.
The different is that the origin_server_ts of the m.room.create event
is not used as a tie-breaker since this might not be known if the
homeserver is not part of the room.
2021-05-11 12:57:39 -04:00

81 lines
2.7 KiB
Python

# Copyright 2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Any, Optional
from unittest import mock
from synapse.handlers.space_summary import _child_events_comparison_key
from tests import unittest
def _create_event(room_id: str, order: Optional[Any] = None):
result = mock.Mock()
result.room_id = room_id
result.content = {}
if order is not None:
result.content["order"] = order
return result
def _order(*events):
return sorted(events, key=_child_events_comparison_key)
class TestSpaceSummarySort(unittest.TestCase):
def test_no_order_last(self):
"""An event with no ordering is placed behind those with an ordering."""
ev1 = _create_event("!abc:test")
ev2 = _create_event("!xyz:test", "xyz")
self.assertEqual([ev2, ev1], _order(ev1, ev2))
def test_order(self):
"""The ordering should be used."""
ev1 = _create_event("!abc:test", "xyz")
ev2 = _create_event("!xyz:test", "abc")
self.assertEqual([ev2, ev1], _order(ev1, ev2))
def test_order_room_id(self):
"""Room ID is a tie-breaker for ordering."""
ev1 = _create_event("!abc:test", "abc")
ev2 = _create_event("!xyz:test", "abc")
self.assertEqual([ev1, ev2], _order(ev1, ev2))
def test_invalid_ordering_type(self):
"""Invalid orderings are considered the same as missing."""
ev1 = _create_event("!abc:test", 1)
ev2 = _create_event("!xyz:test", "xyz")
self.assertEqual([ev2, ev1], _order(ev1, ev2))
ev1 = _create_event("!abc:test", {})
self.assertEqual([ev2, ev1], _order(ev1, ev2))
ev1 = _create_event("!abc:test", [])
self.assertEqual([ev2, ev1], _order(ev1, ev2))
ev1 = _create_event("!abc:test", True)
self.assertEqual([ev2, ev1], _order(ev1, ev2))
def test_invalid_ordering_value(self):
"""Invalid orderings are considered the same as missing."""
ev1 = _create_event("!abc:test", "foo\n")
ev2 = _create_event("!xyz:test", "xyz")
self.assertEqual([ev2, ev1], _order(ev1, ev2))
ev1 = _create_event("!abc:test", "a" * 51)
self.assertEqual([ev2, ev1], _order(ev1, ev2))