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870 lines
28 KiB
Python
870 lines
28 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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import unittest as stdlib_unittest
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from typing import Any, List, Mapping, Optional
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import attr
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from parameterized import parameterized
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from synapse.api.constants import EventContentFields
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from synapse.api.room_versions import RoomVersions
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from synapse.events import EventBase, make_event_from_dict
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from synapse.events.utils import (
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PowerLevelsContent,
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SerializeEventConfig,
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_split_field,
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clone_event,
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copy_and_fixup_power_levels_contents,
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maybe_upsert_event_field,
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prune_event,
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serialize_event,
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)
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from synapse.types import JsonDict
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from synapse.util.frozenutils import freeze
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def MockEvent(**kwargs: Any) -> EventBase:
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if "event_id" not in kwargs:
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kwargs["event_id"] = "fake_event_id"
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if "type" not in kwargs:
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kwargs["type"] = "fake_type"
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if "content" not in kwargs:
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kwargs["content"] = {}
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return make_event_from_dict(kwargs)
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class TestMaybeUpsertEventField(stdlib_unittest.TestCase):
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def test_update_okay(self) -> None:
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event = make_event_from_dict({"event_id": "$1234"})
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success = maybe_upsert_event_field(event, event.unsigned, "key", "value")
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self.assertTrue(success)
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self.assertEqual(event.unsigned["key"], "value")
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def test_update_not_okay(self) -> None:
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event = make_event_from_dict({"event_id": "$1234"})
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LARGE_STRING = "a" * 100_000
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success = maybe_upsert_event_field(event, event.unsigned, "key", LARGE_STRING)
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self.assertFalse(success)
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self.assertNotIn("key", event.unsigned)
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def test_update_not_okay_leaves_original_value(self) -> None:
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event = make_event_from_dict(
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{"event_id": "$1234", "unsigned": {"key": "value"}}
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)
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LARGE_STRING = "a" * 100_000
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success = maybe_upsert_event_field(event, event.unsigned, "key", LARGE_STRING)
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self.assertFalse(success)
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self.assertEqual(event.unsigned["key"], "value")
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class PruneEventTestCase(stdlib_unittest.TestCase):
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def run_test(self, evdict: JsonDict, matchdict: JsonDict, **kwargs: Any) -> None:
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"""
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Asserts that a new event constructed with `evdict` will look like
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`matchdict` when it is redacted.
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Args:
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evdict: The dictionary to build the event from.
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matchdict: The expected resulting dictionary.
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kwargs: Additional keyword arguments used to create the event.
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"""
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self.assertEqual(
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prune_event(make_event_from_dict(evdict, **kwargs)).get_dict(), matchdict
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)
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def test_minimal(self) -> None:
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self.run_test(
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{"type": "A", "event_id": "$test:domain"},
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{
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"type": "A",
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"event_id": "$test:domain",
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"content": {},
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"signatures": {},
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"unsigned": {},
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},
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)
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def test_basic_keys(self) -> None:
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"""Ensure that the keys that should be untouched are kept."""
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# Note that some of the values below don't really make sense, but the
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# pruning of events doesn't worry about the values of any fields (with
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# the exception of the content field).
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self.run_test(
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{
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"event_id": "$3:domain",
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"type": "A",
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"room_id": "!1:domain",
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"sender": "@2:domain",
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"state_key": "B",
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"content": {"other_key": "foo"},
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"hashes": "hashes",
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"signatures": {"domain": {"algo:1": "sigs"}},
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"depth": 4,
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"prev_events": "prev_events",
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"prev_state": "prev_state",
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"auth_events": "auth_events",
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"origin": "domain",
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"origin_server_ts": 1234,
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"membership": "join",
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# Also include a key that should be removed.
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"other_key": "foo",
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},
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{
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"event_id": "$3:domain",
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"type": "A",
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"room_id": "!1:domain",
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"sender": "@2:domain",
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"state_key": "B",
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"hashes": "hashes",
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"depth": 4,
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"prev_events": "prev_events",
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"prev_state": "prev_state",
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"auth_events": "auth_events",
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"origin": "domain",
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"origin_server_ts": 1234,
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"membership": "join",
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"content": {},
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"signatures": {"domain": {"algo:1": "sigs"}},
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"unsigned": {},
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},
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)
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# As of room versions we now redact the membership, prev_states, and origin keys.
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self.run_test(
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{
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"type": "A",
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"prev_state": "prev_state",
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"membership": "join",
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"origin": "example.com",
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},
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{"type": "A", "content": {}, "signatures": {}, "unsigned": {}},
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room_version=RoomVersions.V11,
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)
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def test_unsigned(self) -> None:
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"""Ensure that unsigned properties get stripped (except age_ts and replaces_state)."""
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self.run_test(
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{
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"type": "B",
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"event_id": "$test:domain",
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"unsigned": {
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"age_ts": 20,
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"replaces_state": "$test2:domain",
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"other_key": "foo",
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},
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},
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{
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"type": "B",
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"event_id": "$test:domain",
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"content": {},
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"signatures": {},
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"unsigned": {"age_ts": 20, "replaces_state": "$test2:domain"},
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},
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)
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def test_content(self) -> None:
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"""The content dictionary should be stripped in most cases."""
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self.run_test(
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{"type": "C", "event_id": "$test:domain", "content": {"things": "here"}},
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{
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"type": "C",
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"event_id": "$test:domain",
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"content": {},
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"signatures": {},
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"unsigned": {},
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},
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)
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# Some events keep a single content key/value.
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EVENT_KEEP_CONTENT_KEYS = [
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("member", "membership", "join"),
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("join_rules", "join_rule", "invite"),
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("history_visibility", "history_visibility", "shared"),
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]
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for event_type, key, value in EVENT_KEEP_CONTENT_KEYS:
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self.run_test(
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{
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"type": "m.room." + event_type,
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"event_id": "$test:domain",
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"content": {key: value, "other_key": "foo"},
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},
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{
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"type": "m.room." + event_type,
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"event_id": "$test:domain",
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"content": {key: value},
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"signatures": {},
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"unsigned": {},
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},
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)
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def test_create(self) -> None:
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"""Create events are partially redacted until MSC2176."""
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self.run_test(
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{
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"type": "m.room.create",
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"event_id": "$test:domain",
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"content": {"creator": "@2:domain", "other_key": "foo"},
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},
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{
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"type": "m.room.create",
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"event_id": "$test:domain",
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"content": {"creator": "@2:domain"},
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"signatures": {},
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"unsigned": {},
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},
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)
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# After MSC2176, create events should preserve field `content`
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self.run_test(
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{
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"type": "m.room.create",
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"content": {"not_a_real_key": True},
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"origin": "some_homeserver",
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"nonsense_field": "some_random_garbage",
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},
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{
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"type": "m.room.create",
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"content": {"not_a_real_key": True},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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def test_power_levels(self) -> None:
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"""Power level events keep a variety of content keys."""
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self.run_test(
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{
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"type": "m.room.power_levels",
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"event_id": "$test:domain",
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"content": {
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"ban": 1,
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"events": {"m.room.name": 100},
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"events_default": 2,
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"invite": 3,
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"kick": 4,
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"redact": 5,
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"state_default": 6,
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"users": {"@admin:domain": 100},
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"users_default": 7,
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"other_key": 8,
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},
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},
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{
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"type": "m.room.power_levels",
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"event_id": "$test:domain",
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"content": {
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"ban": 1,
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"events": {"m.room.name": 100},
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"events_default": 2,
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# Note that invite is not here.
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"kick": 4,
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"redact": 5,
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"state_default": 6,
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"users": {"@admin:domain": 100},
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"users_default": 7,
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},
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"signatures": {},
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"unsigned": {},
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},
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)
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# After MSC2176, power levels events keep the invite key.
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self.run_test(
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{"type": "m.room.power_levels", "content": {"invite": 75}},
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{
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"type": "m.room.power_levels",
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"content": {"invite": 75},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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def test_alias_event(self) -> None:
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"""Alias events have special behavior up through room version 6."""
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self.run_test(
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{
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"type": "m.room.aliases",
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"event_id": "$test:domain",
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"content": {"aliases": ["test"]},
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},
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{
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"type": "m.room.aliases",
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"event_id": "$test:domain",
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"content": {"aliases": ["test"]},
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"signatures": {},
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"unsigned": {},
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},
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)
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# After MSC2432, alias events have no special behavior.
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self.run_test(
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{"type": "m.room.aliases", "content": {"aliases": ["test"]}},
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{
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"type": "m.room.aliases",
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"content": {},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V6,
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)
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def test_redacts(self) -> None:
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"""Redaction events have no special behaviour until MSC2174/MSC2176."""
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self.run_test(
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{
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"type": "m.room.redaction",
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"content": {"redacts": "$test2:domain"},
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"redacts": "$test2:domain",
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},
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{
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"type": "m.room.redaction",
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"content": {},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V6,
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)
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# After MSC2174, redaction events keep the redacts content key.
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self.run_test(
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{
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"type": "m.room.redaction",
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"content": {"redacts": "$test2:domain"},
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"redacts": "$test2:domain",
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},
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{
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"type": "m.room.redaction",
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"content": {"redacts": "$test2:domain"},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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def test_join_rules(self) -> None:
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"""Join rules events have changed behavior starting with MSC3083."""
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self.run_test(
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{
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"type": "m.room.join_rules",
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"event_id": "$test:domain",
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"content": {
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"join_rule": "invite",
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"allow": [],
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.join_rules",
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"event_id": "$test:domain",
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"content": {"join_rule": "invite"},
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"signatures": {},
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"unsigned": {},
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},
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)
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# After MSC3083, the allow key is protected from redaction.
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self.run_test(
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{
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"type": "m.room.join_rules",
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"content": {
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"join_rule": "invite",
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"allow": [],
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.join_rules",
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"content": {
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"join_rule": "invite",
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"allow": [],
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},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V8,
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)
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def test_member(self) -> None:
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"""Member events have changed behavior in MSC3375 and MSC3821."""
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self.run_test(
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{
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"type": "m.room.member",
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"event_id": "$test:domain",
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"content": {
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"membership": "join",
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EventContentFields.AUTHORISING_USER: "@user:domain",
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.member",
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"event_id": "$test:domain",
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"content": {"membership": "join"},
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"signatures": {},
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"unsigned": {},
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},
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)
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# After MSC3375, the join_authorised_via_users_server key is protected
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# from redaction.
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self.run_test(
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{
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"type": "m.room.member",
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"content": {
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"membership": "join",
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EventContentFields.AUTHORISING_USER: "@user:domain",
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.member",
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"content": {
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"membership": "join",
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EventContentFields.AUTHORISING_USER: "@user:domain",
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},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V9,
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)
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# After MSC3821, the signed key under third_party_invite is protected
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# from redaction.
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THIRD_PARTY_INVITE = {
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"display_name": "alice",
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"signed": {
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"mxid": "@alice:example.org",
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"signatures": {
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"magic.forest": {
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"ed25519:3": "fQpGIW1Snz+pwLZu6sTy2aHy/DYWWTspTJRPyNp0PKkymfIsNffysMl6ObMMFdIJhk6g6pwlIqZ54rxo8SLmAg"
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}
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},
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"token": "abc123",
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},
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}
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self.run_test(
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{
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"type": "m.room.member",
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"content": {
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"membership": "invite",
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"third_party_invite": THIRD_PARTY_INVITE,
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.member",
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"content": {
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"membership": "invite",
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"third_party_invite": {"signed": THIRD_PARTY_INVITE["signed"]},
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},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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# Ensure this doesn't break if an invalid field is sent.
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self.run_test(
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{
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"type": "m.room.member",
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"content": {
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"membership": "invite",
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"third_party_invite": {},
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.member",
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"content": {"membership": "invite", "third_party_invite": {}},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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self.run_test(
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{
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"type": "m.room.member",
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"content": {
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"membership": "invite",
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"third_party_invite": "stripped",
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"other_key": "stripped",
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},
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},
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{
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"type": "m.room.member",
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"content": {"membership": "invite"},
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"signatures": {},
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"unsigned": {},
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},
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room_version=RoomVersions.V11,
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)
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def test_relations(self) -> None:
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"""Event relations get redacted until MSC3389."""
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# Normally the m._relates_to field is redacted.
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self.run_test(
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{
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"type": "m.room.message",
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"content": {
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"body": "foo",
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"m.relates_to": {
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"rel_type": "rel_type",
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"event_id": "$parent:domain",
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"other": "stripped",
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},
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},
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},
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{
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"type": "m.room.message",
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"content": {},
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"signatures": {},
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"unsigned": {},
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|
},
|
|
room_version=RoomVersions.V10,
|
|
)
|
|
|
|
# Create a new room version.
|
|
msc3389_room_ver = attr.evolve(
|
|
RoomVersions.V10, msc3389_relation_redactions=True
|
|
)
|
|
|
|
self.run_test(
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {
|
|
"body": "foo",
|
|
"m.relates_to": {
|
|
"rel_type": "rel_type",
|
|
"event_id": "$parent:domain",
|
|
"other": "stripped",
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {
|
|
"m.relates_to": {
|
|
"rel_type": "rel_type",
|
|
"event_id": "$parent:domain",
|
|
},
|
|
},
|
|
"signatures": {},
|
|
"unsigned": {},
|
|
},
|
|
room_version=msc3389_room_ver,
|
|
)
|
|
|
|
# If the field is not an object, redact it.
|
|
self.run_test(
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {
|
|
"body": "foo",
|
|
"m.relates_to": "stripped",
|
|
},
|
|
},
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {},
|
|
"signatures": {},
|
|
"unsigned": {},
|
|
},
|
|
room_version=msc3389_room_ver,
|
|
)
|
|
|
|
# If the m.relates_to property would be empty, redact it.
|
|
self.run_test(
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {"body": "foo", "m.relates_to": {"foo": "stripped"}},
|
|
},
|
|
{
|
|
"type": "m.room.message",
|
|
"content": {},
|
|
"signatures": {},
|
|
"unsigned": {},
|
|
},
|
|
room_version=msc3389_room_ver,
|
|
)
|
|
|
|
|
|
class CloneEventTestCase(stdlib_unittest.TestCase):
|
|
def test_unsigned_is_copied(self) -> None:
|
|
original = make_event_from_dict(
|
|
{
|
|
"type": "A",
|
|
"event_id": "$test:domain",
|
|
"unsigned": {"a": 1, "b": 2},
|
|
},
|
|
RoomVersions.V1,
|
|
{"txn_id": "txn"},
|
|
)
|
|
original.internal_metadata.stream_ordering = 1234
|
|
self.assertEqual(original.internal_metadata.stream_ordering, 1234)
|
|
|
|
cloned = clone_event(original)
|
|
cloned.unsigned["b"] = 3
|
|
|
|
self.assertEqual(original.unsigned, {"a": 1, "b": 2})
|
|
self.assertEqual(cloned.unsigned, {"a": 1, "b": 3})
|
|
self.assertEqual(cloned.internal_metadata.stream_ordering, 1234)
|
|
self.assertEqual(cloned.internal_metadata.txn_id, "txn")
|
|
|
|
|
|
class SerializeEventTestCase(stdlib_unittest.TestCase):
|
|
def serialize(self, ev: EventBase, fields: Optional[List[str]]) -> JsonDict:
|
|
return serialize_event(
|
|
ev, 1479807801915, config=SerializeEventConfig(only_event_fields=fields)
|
|
)
|
|
|
|
def test_event_fields_works_with_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(sender="@alice:localhost", room_id="!foo:bar"), ["room_id"]
|
|
),
|
|
{"room_id": "!foo:bar"},
|
|
)
|
|
|
|
def test_event_fields_works_with_nested_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={"body": "A message"},
|
|
),
|
|
["content.body"],
|
|
),
|
|
{"content": {"body": "A message"}},
|
|
)
|
|
|
|
def test_event_fields_works_with_dot_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={"key.with.dots": {}},
|
|
),
|
|
[r"content.key\.with\.dots"],
|
|
),
|
|
{"content": {"key.with.dots": {}}},
|
|
)
|
|
|
|
def test_event_fields_works_with_nested_dot_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={
|
|
"not_me": 1,
|
|
"nested.dot.key": {"leaf.key": 42, "not_me_either": 1},
|
|
},
|
|
),
|
|
[r"content.nested\.dot\.key.leaf\.key"],
|
|
),
|
|
{"content": {"nested.dot.key": {"leaf.key": 42}}},
|
|
)
|
|
|
|
def test_event_fields_nops_with_unknown_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={"foo": "bar"},
|
|
),
|
|
["content.foo", "content.notexists"],
|
|
),
|
|
{"content": {"foo": "bar"}},
|
|
)
|
|
|
|
def test_event_fields_nops_with_non_dict_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={"foo": ["I", "am", "an", "array"]},
|
|
),
|
|
["content.foo.am"],
|
|
),
|
|
{},
|
|
)
|
|
|
|
def test_event_fields_nops_with_array_keys(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
sender="@alice:localhost",
|
|
room_id="!foo:bar",
|
|
content={"foo": ["I", "am", "an", "array"]},
|
|
),
|
|
["content.foo.1"],
|
|
),
|
|
{},
|
|
)
|
|
|
|
def test_event_fields_all_fields_if_empty(self) -> None:
|
|
self.assertEqual(
|
|
self.serialize(
|
|
MockEvent(
|
|
type="foo",
|
|
event_id="test",
|
|
room_id="!foo:bar",
|
|
content={"foo": "bar"},
|
|
),
|
|
[],
|
|
),
|
|
{
|
|
"type": "foo",
|
|
"event_id": "test",
|
|
"room_id": "!foo:bar",
|
|
"content": {"foo": "bar"},
|
|
"unsigned": {},
|
|
},
|
|
)
|
|
|
|
def test_event_fields_fail_if_fields_not_str(self) -> None:
|
|
with self.assertRaises(TypeError):
|
|
self.serialize(
|
|
MockEvent(room_id="!foo:bar", content={"foo": "bar"}), ["room_id", 4] # type: ignore[list-item]
|
|
)
|
|
|
|
|
|
class CopyPowerLevelsContentTestCase(stdlib_unittest.TestCase):
|
|
def setUp(self) -> None:
|
|
self.test_content: PowerLevelsContent = {
|
|
"ban": 50,
|
|
"events": {"m.room.name": 100, "m.room.power_levels": 100},
|
|
"events_default": 0,
|
|
"invite": 50,
|
|
"kick": 50,
|
|
"notifications": {"room": 20},
|
|
"redact": 50,
|
|
"state_default": 50,
|
|
"users": {"@example:localhost": 100},
|
|
"users_default": 0,
|
|
}
|
|
|
|
def _test(self, input: PowerLevelsContent) -> None:
|
|
a = copy_and_fixup_power_levels_contents(input)
|
|
|
|
self.assertEqual(a["ban"], 50)
|
|
assert isinstance(a["events"], Mapping)
|
|
self.assertEqual(a["events"]["m.room.name"], 100)
|
|
|
|
# make sure that changing the copy changes the copy and not the orig
|
|
a["ban"] = 10
|
|
a["events"]["m.room.power_levels"] = 20
|
|
|
|
self.assertEqual(input["ban"], 50)
|
|
assert isinstance(input["events"], Mapping)
|
|
self.assertEqual(input["events"]["m.room.power_levels"], 100)
|
|
|
|
def test_unfrozen(self) -> None:
|
|
self._test(self.test_content)
|
|
|
|
def test_frozen(self) -> None:
|
|
input = freeze(self.test_content)
|
|
self._test(input)
|
|
|
|
def test_stringy_integers(self) -> None:
|
|
"""String representations of decimal integers are converted to integers."""
|
|
input: PowerLevelsContent = {
|
|
"a": "100",
|
|
"b": {
|
|
"foo": 99,
|
|
"bar": "-98",
|
|
},
|
|
"d": "0999",
|
|
}
|
|
output = copy_and_fixup_power_levels_contents(input)
|
|
expected_output = {
|
|
"a": 100,
|
|
"b": {
|
|
"foo": 99,
|
|
"bar": -98,
|
|
},
|
|
"d": 999,
|
|
}
|
|
|
|
self.assertEqual(output, expected_output)
|
|
|
|
def test_strings_that_dont_represent_decimal_integers(self) -> None:
|
|
"""Should raise when given inputs `s` for which `int(s, base=10)` raises."""
|
|
for invalid_string in ["0x123", "123.0", "123.45", "hello", "0b1", "0o777"]:
|
|
with self.assertRaises(TypeError):
|
|
copy_and_fixup_power_levels_contents({"a": invalid_string})
|
|
|
|
def test_invalid_types_raise_type_error(self) -> None:
|
|
with self.assertRaises(TypeError):
|
|
copy_and_fixup_power_levels_contents({"a": ["hello", "grandma"]}) # type: ignore[dict-item]
|
|
copy_and_fixup_power_levels_contents({"a": None}) # type: ignore[dict-item]
|
|
|
|
def test_invalid_nesting_raises_type_error(self) -> None:
|
|
with self.assertRaises(TypeError):
|
|
copy_and_fixup_power_levels_contents({"a": {"b": {"c": 1}}}) # type: ignore[dict-item]
|
|
|
|
|
|
class SplitFieldTestCase(stdlib_unittest.TestCase):
|
|
@parameterized.expand(
|
|
[
|
|
# A field with no dots.
|
|
["m", ["m"]],
|
|
# Simple dotted fields.
|
|
["m.foo", ["m", "foo"]],
|
|
["m.foo.bar", ["m", "foo", "bar"]],
|
|
# Backslash is used as an escape character.
|
|
[r"m\.foo", ["m.foo"]],
|
|
[r"m\\.foo", ["m\\", "foo"]],
|
|
[r"m\\\.foo", [r"m\.foo"]],
|
|
[r"m\\\\.foo", ["m\\\\", "foo"]],
|
|
[r"m\foo", [r"m\foo"]],
|
|
[r"m\\foo", [r"m\foo"]],
|
|
[r"m\\\foo", [r"m\\foo"]],
|
|
[r"m\\\\foo", [r"m\\foo"]],
|
|
# Ensure that escapes at the end don't cause issues.
|
|
["m.foo\\", ["m", "foo\\"]],
|
|
["m.foo\\", ["m", "foo\\"]],
|
|
[r"m.foo\.", ["m", "foo."]],
|
|
[r"m.foo\\.", ["m", "foo\\", ""]],
|
|
[r"m.foo\\\.", ["m", r"foo\."]],
|
|
# Empty parts (corresponding to properties which are an empty string) are allowed.
|
|
[".m", ["", "m"]],
|
|
["..m", ["", "", "m"]],
|
|
["m.", ["m", ""]],
|
|
["m..", ["m", "", ""]],
|
|
["m..foo", ["m", "", "foo"]],
|
|
# Invalid escape sequences.
|
|
[r"\m", [r"\m"]],
|
|
]
|
|
)
|
|
def test_split_field(self, input: str, expected: str) -> None:
|
|
self.assertEqual(_split_field(input), expected)
|