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path: root/tests/events/test_snapshot.py
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# Copyright 2020 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 synapse.events.snapshot import EventContext
from synapse.rest import admin
from synapse.rest.client import login, room

from tests import unittest
from tests.test_utils.event_injection import create_event


class TestEventContext(unittest.HomeserverTestCase):
    servlets = [
        admin.register_servlets,
        login.register_servlets,
        room.register_servlets,
    ]

    def prepare(self, reactor, clock, hs):
        self.store = hs.get_datastores().main
        self._storage_controllers = hs.get_storage_controllers()

        self.user_id = self.register_user("u1", "pass")
        self.user_tok = self.login("u1", "pass")
        self.room_id = self.helper.create_room_as(tok=self.user_tok)

    def test_serialize_deserialize_msg(self):
        """Test that an EventContext for a message event is the same after
        serialize/deserialize.
        """

        event, context = self.get_success(
            create_event(
                self.hs,
                room_id=self.room_id,
                type="m.test",
                sender=self.user_id,
            )
        )

        self._check_serialize_deserialize(event, context)

    def test_serialize_deserialize_state_no_prev(self):
        """Test that an EventContext for a state event (with not previous entry)
        is the same after serialize/deserialize.
        """
        event, context = self.get_success(
            create_event(
                self.hs,
                room_id=self.room_id,
                type="m.test",
                sender=self.user_id,
                state_key="",
            )
        )

        self._check_serialize_deserialize(event, context)

    def test_serialize_deserialize_state_prev(self):
        """Test that an EventContext for a state event (which replaces a
        previous entry) is the same after serialize/deserialize.
        """
        event, context = self.get_success(
            create_event(
                self.hs,
                room_id=self.room_id,
                type="m.room.member",
                sender=self.user_id,
                state_key=self.user_id,
                content={"membership": "leave"},
            )
        )

        self._check_serialize_deserialize(event, context)

    def _check_serialize_deserialize(self, event, context):
        serialized = self.get_success(context.serialize(event, self.store))

        d_context = EventContext.deserialize(self._storage_controllers, serialized)

        self.assertEqual(context.state_group, d_context.state_group)
        self.assertEqual(context.rejected, d_context.rejected)
        self.assertEqual(
            context.state_group_before_event, d_context.state_group_before_event
        )
        self.assertEqual(context.prev_group, d_context.prev_group)
        self.assertEqual(context.delta_ids, d_context.delta_ids)
        self.assertEqual(context.app_service, d_context.app_service)

        self.assertEqual(
            self.get_success(context.get_current_state_ids()),
            self.get_success(d_context.get_current_state_ids()),
        )
        self.assertEqual(
            self.get_success(context.get_prev_state_ids()),
            self.get_success(d_context.get_prev_state_ids()),
        )