175 lines
6.4 KiB
Python
175 lines
6.4 KiB
Python
# Copyright 2022 The Matrix.org Foundation C.I.C.
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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 Collection, Dict
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from unittest import mock
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from twisted.internet.defer import CancelledError, ensureDeferred
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from synapse.storage.util.partial_state_events_tracker import (
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PartialCurrentStateTracker,
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PartialStateEventsTracker,
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)
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from tests.unittest import TestCase
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class PartialStateEventsTrackerTestCase(TestCase):
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def setUp(self) -> None:
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# the results to be returned by the mocked get_partial_state_events
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self._events_dict: Dict[str, bool] = {}
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async def get_partial_state_events(events: Collection[str]) -> Dict[str, bool]:
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return {e: self._events_dict[e] for e in events}
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self.mock_store = mock.Mock(spec_set=["get_partial_state_events"])
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self.mock_store.get_partial_state_events.side_effect = get_partial_state_events
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self.tracker = PartialStateEventsTracker(self.mock_store)
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def test_does_not_block_for_full_state_events(self) -> None:
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self._events_dict = {"event1": False, "event2": False}
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self.successResultOf(
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ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
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)
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self.mock_store.get_partial_state_events.assert_called_once_with(
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["event1", "event2"]
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)
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def test_blocks_for_partial_state_events(self) -> None:
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self._events_dict = {"event1": True, "event2": False}
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d = ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
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# there should be no result yet
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self.assertNoResult(d)
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# notifying that the event has been de-partial-stated should unblock
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self.tracker.notify_un_partial_stated("event1")
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self.successResultOf(d)
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def test_un_partial_state_race(self) -> None:
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# if the event is un-partial-stated between the initial check and the
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# registration of the listener, it should not block.
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self._events_dict = {"event1": True, "event2": False}
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async def get_partial_state_events(events: Collection[str]) -> Dict[str, bool]:
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res = {e: self._events_dict[e] for e in events}
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# change the result for next time
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self._events_dict = {"event1": False, "event2": False}
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return res
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self.mock_store.get_partial_state_events.side_effect = get_partial_state_events
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self.successResultOf(
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ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
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)
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def test_un_partial_state_during_get_partial_state_events(self) -> None:
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# we should correctly handle a call to notify_un_partial_stated during the
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# second call to get_partial_state_events.
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self._events_dict = {"event1": True, "event2": False}
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async def get_partial_state_events1(events: Collection[str]) -> Dict[str, bool]:
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self.mock_store.get_partial_state_events.side_effect = (
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get_partial_state_events2
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)
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return {e: self._events_dict[e] for e in events}
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async def get_partial_state_events2(events: Collection[str]) -> Dict[str, bool]:
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self.tracker.notify_un_partial_stated("event1")
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self._events_dict["event1"] = False
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return {e: self._events_dict[e] for e in events}
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self.mock_store.get_partial_state_events.side_effect = get_partial_state_events1
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self.successResultOf(
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ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
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)
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def test_cancellation(self) -> None:
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self._events_dict = {"event1": True, "event2": False}
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d1 = ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
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self.assertNoResult(d1)
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d2 = ensureDeferred(self.tracker.await_full_state(["event1"]))
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self.assertNoResult(d2)
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d1.cancel()
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self.assertFailure(d1, CancelledError)
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# d2 should still be waiting!
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self.assertNoResult(d2)
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self.tracker.notify_un_partial_stated("event1")
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self.successResultOf(d2)
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class PartialCurrentStateTrackerTestCase(TestCase):
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def setUp(self) -> None:
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self.mock_store = mock.Mock(spec_set=["is_partial_state_room"])
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self.mock_store.is_partial_state_room = mock.AsyncMock()
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self.tracker = PartialCurrentStateTracker(self.mock_store)
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def test_does_not_block_for_full_state_rooms(self) -> None:
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self.mock_store.is_partial_state_room.return_value = False
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self.successResultOf(ensureDeferred(self.tracker.await_full_state("room_id")))
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def test_blocks_for_partial_room_state(self) -> None:
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self.mock_store.is_partial_state_room.return_value = True
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d = ensureDeferred(self.tracker.await_full_state("room_id"))
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# there should be no result yet
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self.assertNoResult(d)
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# notifying that the room has been de-partial-stated should unblock
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self.tracker.notify_un_partial_stated("room_id")
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self.successResultOf(d)
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def test_un_partial_state_race(self) -> None:
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# We should correctly handle race between awaiting the state and us
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# un-partialling the state
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async def is_partial_state_room(room_id: str) -> bool:
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self.tracker.notify_un_partial_stated("room_id")
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return True
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self.mock_store.is_partial_state_room.side_effect = is_partial_state_room
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self.successResultOf(ensureDeferred(self.tracker.await_full_state("room_id")))
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def test_cancellation(self) -> None:
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self.mock_store.is_partial_state_room.return_value = True
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d1 = ensureDeferred(self.tracker.await_full_state("room_id"))
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self.assertNoResult(d1)
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d2 = ensureDeferred(self.tracker.await_full_state("room_id"))
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self.assertNoResult(d2)
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d1.cancel()
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self.assertFailure(d1, CancelledError)
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# d2 should still be waiting!
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self.assertNoResult(d2)
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self.tracker.notify_un_partial_stated("room_id")
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self.successResultOf(d2)
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