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-rw-r--r--tests/rest/client/test_rooms.py271
1 files changed, 138 insertions, 133 deletions
diff --git a/tests/rest/client/test_rooms.py b/tests/rest/client/test_rooms.py
index e0b11e7264..37866ee330 100644
--- a/tests/rest/client/test_rooms.py
+++ b/tests/rest/client/test_rooms.py
@@ -18,11 +18,12 @@
 """Tests REST events for /rooms paths."""
 
 import json
-from typing import Iterable, List
+from typing import Any, Dict, Iterable, List, Optional
 from unittest.mock import Mock, call
 from urllib import parse as urlparse
 
 from twisted.internet import defer
+from twisted.test.proto_helpers import MemoryReactor
 
 import synapse.rest.admin
 from synapse.api.constants import (
@@ -35,7 +36,9 @@ from synapse.api.errors import Codes, HttpResponseException
 from synapse.handlers.pagination import PurgeStatus
 from synapse.rest import admin
 from synapse.rest.client import account, directory, login, profile, room, sync
+from synapse.server import HomeServer
 from synapse.types import JsonDict, RoomAlias, UserID, create_requester
+from synapse.util import Clock
 from synapse.util.stringutils import random_string
 
 from tests import unittest
@@ -45,11 +48,11 @@ PATH_PREFIX = b"/_matrix/client/api/v1"
 
 
 class RoomBase(unittest.HomeserverTestCase):
-    rmcreator_id = None
+    rmcreator_id: Optional[str] = None
 
     servlets = [room.register_servlets, room.register_deprecated_servlets]
 
-    def make_homeserver(self, reactor, clock):
+    def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
 
         self.hs = self.setup_test_homeserver(
             "red",
@@ -57,15 +60,15 @@ class RoomBase(unittest.HomeserverTestCase):
             federation_client=Mock(),
         )
 
-        self.hs.get_federation_handler = Mock()
+        self.hs.get_federation_handler = Mock()  # type: ignore[assignment]
         self.hs.get_federation_handler.return_value.maybe_backfill = Mock(
             return_value=make_awaitable(None)
         )
 
-        async def _insert_client_ip(*args, **kwargs):
+        async def _insert_client_ip(*args: Any, **kwargs: Any) -> None:
             return None
 
-        self.hs.get_datastores().main.insert_client_ip = _insert_client_ip
+        self.hs.get_datastores().main.insert_client_ip = _insert_client_ip  # type: ignore[assignment]
 
         return self.hs
 
@@ -76,7 +79,7 @@ class RoomPermissionsTestCase(RoomBase):
     user_id = "@sid1:red"
     rmcreator_id = "@notme:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
 
         self.helper.auth_user_id = self.rmcreator_id
         # create some rooms under the name rmcreator_id
@@ -108,12 +111,12 @@ class RoomPermissionsTestCase(RoomBase):
         # auth as user_id now
         self.helper.auth_user_id = self.user_id
 
-    def test_can_do_action(self):
+    def test_can_do_action(self) -> None:
         msg_content = b'{"msgtype":"m.text","body":"hello"}'
 
         seq = iter(range(100))
 
-        def send_msg_path():
+        def send_msg_path() -> str:
             return "/rooms/%s/send/m.room.message/mid%s" % (
                 self.created_rmid,
                 str(next(seq)),
@@ -148,7 +151,7 @@ class RoomPermissionsTestCase(RoomBase):
         channel = self.make_request("PUT", send_msg_path(), msg_content)
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_topic_perms(self):
+    def test_topic_perms(self) -> None:
         topic_content = b'{"topic":"My Topic Name"}'
         topic_path = "/rooms/%s/state/m.room.topic" % self.created_rmid
 
@@ -214,14 +217,14 @@ class RoomPermissionsTestCase(RoomBase):
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
     def _test_get_membership(
-        self, room=None, members: Iterable = frozenset(), expect_code=None
-    ):
+        self, room: str, members: Iterable = frozenset(), expect_code: int = 200
+    ) -> None:
         for member in members:
             path = "/rooms/%s/state/m.room.member/%s" % (room, member)
             channel = self.make_request("GET", path)
             self.assertEqual(expect_code, channel.code)
 
-    def test_membership_basic_room_perms(self):
+    def test_membership_basic_room_perms(self) -> None:
         # === room does not exist ===
         room = self.uncreated_rmid
         # get membership of self, get membership of other, uncreated room
@@ -241,7 +244,7 @@ class RoomPermissionsTestCase(RoomBase):
             self.helper.join(room=room, user=usr, expect_code=404)
             self.helper.leave(room=room, user=usr, expect_code=404)
 
-    def test_membership_private_room_perms(self):
+    def test_membership_private_room_perms(self) -> None:
         room = self.created_rmid
         # get membership of self, get membership of other, private room + invite
         # expect all 403s
@@ -264,7 +267,7 @@ class RoomPermissionsTestCase(RoomBase):
             members=[self.user_id, self.rmcreator_id], room=room, expect_code=200
         )
 
-    def test_membership_public_room_perms(self):
+    def test_membership_public_room_perms(self) -> None:
         room = self.created_public_rmid
         # get membership of self, get membership of other, public room + invite
         # expect 403
@@ -287,7 +290,7 @@ class RoomPermissionsTestCase(RoomBase):
             members=[self.user_id, self.rmcreator_id], room=room, expect_code=200
         )
 
-    def test_invited_permissions(self):
+    def test_invited_permissions(self) -> None:
         room = self.created_rmid
         self.helper.invite(room=room, src=self.rmcreator_id, targ=self.user_id)
 
@@ -310,7 +313,7 @@ class RoomPermissionsTestCase(RoomBase):
             expect_code=403,
         )
 
-    def test_joined_permissions(self):
+    def test_joined_permissions(self) -> None:
         room = self.created_rmid
         self.helper.invite(room=room, src=self.rmcreator_id, targ=self.user_id)
         self.helper.join(room=room, user=self.user_id)
@@ -348,7 +351,7 @@ class RoomPermissionsTestCase(RoomBase):
         # set left of self, expect 200
         self.helper.leave(room=room, user=self.user_id)
 
-    def test_leave_permissions(self):
+    def test_leave_permissions(self) -> None:
         room = self.created_rmid
         self.helper.invite(room=room, src=self.rmcreator_id, targ=self.user_id)
         self.helper.join(room=room, user=self.user_id)
@@ -383,7 +386,7 @@ class RoomPermissionsTestCase(RoomBase):
         )
 
     # tests the "from banned" line from the table in https://spec.matrix.org/unstable/client-server-api/#mroommember
-    def test_member_event_from_ban(self):
+    def test_member_event_from_ban(self) -> None:
         room = self.created_rmid
         self.helper.invite(room=room, src=self.rmcreator_id, targ=self.user_id)
         self.helper.join(room=room, user=self.user_id)
@@ -475,21 +478,21 @@ class RoomsMemberListTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def test_get_member_list(self):
+    def test_get_member_list(self) -> None:
         room_id = self.helper.create_room_as(self.user_id)
         channel = self.make_request("GET", "/rooms/%s/members" % room_id)
         self.assertEqual(200, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_no_room(self):
+    def test_get_member_list_no_room(self) -> None:
         channel = self.make_request("GET", "/rooms/roomdoesnotexist/members")
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_no_permission(self):
+    def test_get_member_list_no_permission(self) -> None:
         room_id = self.helper.create_room_as("@some_other_guy:red")
         channel = self.make_request("GET", "/rooms/%s/members" % room_id)
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_no_permission_with_at_token(self):
+    def test_get_member_list_no_permission_with_at_token(self) -> None:
         """
         Tests that a stranger to the room cannot get the member list
         (in the case that they use an at token).
@@ -509,7 +512,7 @@ class RoomsMemberListTestCase(RoomBase):
         )
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_no_permission_former_member(self):
+    def test_get_member_list_no_permission_former_member(self) -> None:
         """
         Tests that a former member of the room can not get the member list.
         """
@@ -529,7 +532,7 @@ class RoomsMemberListTestCase(RoomBase):
         channel = self.make_request("GET", "/rooms/%s/members" % room_id)
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_no_permission_former_member_with_at_token(self):
+    def test_get_member_list_no_permission_former_member_with_at_token(self) -> None:
         """
         Tests that a former member of the room can not get the member list
         (in the case that they use an at token).
@@ -569,7 +572,7 @@ class RoomsMemberListTestCase(RoomBase):
         )
         self.assertEqual(403, channel.code, msg=channel.result["body"])
 
-    def test_get_member_list_mixed_memberships(self):
+    def test_get_member_list_mixed_memberships(self) -> None:
         room_creator = "@some_other_guy:red"
         room_id = self.helper.create_room_as(room_creator)
         room_path = "/rooms/%s/members" % room_id
@@ -594,26 +597,26 @@ class RoomsCreateTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def test_post_room_no_keys(self):
+    def test_post_room_no_keys(self) -> None:
         # POST with no config keys, expect new room id
         channel = self.make_request("POST", "/createRoom", "{}")
 
         self.assertEqual(200, channel.code, channel.result)
         self.assertTrue("room_id" in channel.json_body)
 
-    def test_post_room_visibility_key(self):
+    def test_post_room_visibility_key(self) -> None:
         # POST with visibility config key, expect new room id
         channel = self.make_request("POST", "/createRoom", b'{"visibility":"private"}')
         self.assertEqual(200, channel.code)
         self.assertTrue("room_id" in channel.json_body)
 
-    def test_post_room_custom_key(self):
+    def test_post_room_custom_key(self) -> None:
         # POST with custom config keys, expect new room id
         channel = self.make_request("POST", "/createRoom", b'{"custom":"stuff"}')
         self.assertEqual(200, channel.code)
         self.assertTrue("room_id" in channel.json_body)
 
-    def test_post_room_known_and_unknown_keys(self):
+    def test_post_room_known_and_unknown_keys(self) -> None:
         # POST with custom + known config keys, expect new room id
         channel = self.make_request(
             "POST", "/createRoom", b'{"visibility":"private","custom":"things"}'
@@ -621,7 +624,7 @@ class RoomsCreateTestCase(RoomBase):
         self.assertEqual(200, channel.code)
         self.assertTrue("room_id" in channel.json_body)
 
-    def test_post_room_invalid_content(self):
+    def test_post_room_invalid_content(self) -> None:
         # POST with invalid content / paths, expect 400
         channel = self.make_request("POST", "/createRoom", b'{"visibili')
         self.assertEqual(400, channel.code)
@@ -629,7 +632,7 @@ class RoomsCreateTestCase(RoomBase):
         channel = self.make_request("POST", "/createRoom", b'["hello"]')
         self.assertEqual(400, channel.code)
 
-    def test_post_room_invitees_invalid_mxid(self):
+    def test_post_room_invitees_invalid_mxid(self) -> None:
         # POST with invalid invitee, see https://github.com/matrix-org/synapse/issues/4088
         # Note the trailing space in the MXID here!
         channel = self.make_request(
@@ -638,7 +641,7 @@ class RoomsCreateTestCase(RoomBase):
         self.assertEqual(400, channel.code)
 
     @unittest.override_config({"rc_invites": {"per_room": {"burst_count": 3}}})
-    def test_post_room_invitees_ratelimit(self):
+    def test_post_room_invitees_ratelimit(self) -> None:
         """Test that invites sent when creating a room are ratelimited by a RateLimiter,
         which ratelimits them correctly, including by not limiting when the requester is
         exempt from ratelimiting.
@@ -674,7 +677,7 @@ class RoomsCreateTestCase(RoomBase):
         channel = self.make_request("POST", "/createRoom", content)
         self.assertEqual(200, channel.code)
 
-    def test_spam_checker_may_join_room(self):
+    def test_spam_checker_may_join_room(self) -> None:
         """Tests that the user_may_join_room spam checker callback is correctly bypassed
         when creating a new room.
         """
@@ -704,12 +707,12 @@ class RoomTopicTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         # create the room
         self.room_id = self.helper.create_room_as(self.user_id)
         self.path = "/rooms/%s/state/m.room.topic" % (self.room_id,)
 
-    def test_invalid_puts(self):
+    def test_invalid_puts(self) -> None:
         # missing keys or invalid json
         channel = self.make_request("PUT", self.path, "{}")
         self.assertEqual(400, channel.code, msg=channel.result["body"])
@@ -736,7 +739,7 @@ class RoomTopicTestCase(RoomBase):
         channel = self.make_request("PUT", self.path, content)
         self.assertEqual(400, channel.code, msg=channel.result["body"])
 
-    def test_rooms_topic(self):
+    def test_rooms_topic(self) -> None:
         # nothing should be there
         channel = self.make_request("GET", self.path)
         self.assertEqual(404, channel.code, msg=channel.result["body"])
@@ -751,7 +754,7 @@ class RoomTopicTestCase(RoomBase):
         self.assertEqual(200, channel.code, msg=channel.result["body"])
         self.assert_dict(json.loads(content), channel.json_body)
 
-    def test_rooms_topic_with_extra_keys(self):
+    def test_rooms_topic_with_extra_keys(self) -> None:
         # valid put with extra keys
         content = '{"topic":"Seasons","subtopic":"Summer"}'
         channel = self.make_request("PUT", self.path, content)
@@ -768,10 +771,10 @@ class RoomMemberStateTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.room_id = self.helper.create_room_as(self.user_id)
 
-    def test_invalid_puts(self):
+    def test_invalid_puts(self) -> None:
         path = "/rooms/%s/state/m.room.member/%s" % (self.room_id, self.user_id)
         # missing keys or invalid json
         channel = self.make_request("PUT", path, "{}")
@@ -801,7 +804,7 @@ class RoomMemberStateTestCase(RoomBase):
         channel = self.make_request("PUT", path, content.encode("ascii"))
         self.assertEqual(400, channel.code, msg=channel.result["body"])
 
-    def test_rooms_members_self(self):
+    def test_rooms_members_self(self) -> None:
         path = "/rooms/%s/state/m.room.member/%s" % (
             urlparse.quote(self.room_id),
             self.user_id,
@@ -812,13 +815,13 @@ class RoomMemberStateTestCase(RoomBase):
         channel = self.make_request("PUT", path, content.encode("ascii"))
         self.assertEqual(200, channel.code, msg=channel.result["body"])
 
-        channel = self.make_request("GET", path, None)
+        channel = self.make_request("GET", path, content=b"")
         self.assertEqual(200, channel.code, msg=channel.result["body"])
 
         expected_response = {"membership": Membership.JOIN}
         self.assertEqual(expected_response, channel.json_body)
 
-    def test_rooms_members_other(self):
+    def test_rooms_members_other(self) -> None:
         self.other_id = "@zzsid1:red"
         path = "/rooms/%s/state/m.room.member/%s" % (
             urlparse.quote(self.room_id),
@@ -830,11 +833,11 @@ class RoomMemberStateTestCase(RoomBase):
         channel = self.make_request("PUT", path, content)
         self.assertEqual(200, channel.code, msg=channel.result["body"])
 
-        channel = self.make_request("GET", path, None)
+        channel = self.make_request("GET", path, content=b"")
         self.assertEqual(200, channel.code, msg=channel.result["body"])
         self.assertEqual(json.loads(content), channel.json_body)
 
-    def test_rooms_members_other_custom_keys(self):
+    def test_rooms_members_other_custom_keys(self) -> None:
         self.other_id = "@zzsid1:red"
         path = "/rooms/%s/state/m.room.member/%s" % (
             urlparse.quote(self.room_id),
@@ -849,7 +852,7 @@ class RoomMemberStateTestCase(RoomBase):
         channel = self.make_request("PUT", path, content)
         self.assertEqual(200, channel.code, msg=channel.result["body"])
 
-        channel = self.make_request("GET", path, None)
+        channel = self.make_request("GET", path, content=b"")
         self.assertEqual(200, channel.code, msg=channel.result["body"])
         self.assertEqual(json.loads(content), channel.json_body)
 
@@ -866,7 +869,7 @@ class RoomInviteRatelimitTestCase(RoomBase):
     @unittest.override_config(
         {"rc_invites": {"per_room": {"per_second": 0.5, "burst_count": 3}}}
     )
-    def test_invites_by_rooms_ratelimit(self):
+    def test_invites_by_rooms_ratelimit(self) -> None:
         """Tests that invites in a room are actually rate-limited."""
         room_id = self.helper.create_room_as(self.user_id)
 
@@ -878,7 +881,7 @@ class RoomInviteRatelimitTestCase(RoomBase):
     @unittest.override_config(
         {"rc_invites": {"per_user": {"per_second": 0.5, "burst_count": 3}}}
     )
-    def test_invites_by_users_ratelimit(self):
+    def test_invites_by_users_ratelimit(self) -> None:
         """Tests that invites to a specific user are actually rate-limited."""
 
         for _ in range(3):
@@ -897,7 +900,7 @@ class RoomJoinTestCase(RoomBase):
         room.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user1 = self.register_user("thomas", "hackme")
         self.tok1 = self.login("thomas", "hackme")
 
@@ -908,7 +911,7 @@ class RoomJoinTestCase(RoomBase):
         self.room2 = self.helper.create_room_as(room_creator=self.user1, tok=self.tok1)
         self.room3 = self.helper.create_room_as(room_creator=self.user1, tok=self.tok1)
 
-    def test_spam_checker_may_join_room(self):
+    def test_spam_checker_may_join_room(self) -> None:
         """Tests that the user_may_join_room spam checker callback is correctly called
         and blocks room joins when needed.
         """
@@ -975,8 +978,8 @@ class RoomJoinRatelimitTestCase(RoomBase):
         room.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
-        super().prepare(reactor, clock, homeserver)
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
+        super().prepare(reactor, clock, hs)
         # profile changes expect that the user is actually registered
         user = UserID.from_string(self.user_id)
         self.get_success(self.register_user(user.localpart, "supersecretpassword"))
@@ -984,7 +987,7 @@ class RoomJoinRatelimitTestCase(RoomBase):
     @unittest.override_config(
         {"rc_joins": {"local": {"per_second": 0.5, "burst_count": 3}}}
     )
-    def test_join_local_ratelimit(self):
+    def test_join_local_ratelimit(self) -> None:
         """Tests that local joins are actually rate-limited."""
         for _ in range(3):
             self.helper.create_room_as(self.user_id)
@@ -994,7 +997,7 @@ class RoomJoinRatelimitTestCase(RoomBase):
     @unittest.override_config(
         {"rc_joins": {"local": {"per_second": 0.5, "burst_count": 3}}}
     )
-    def test_join_local_ratelimit_profile_change(self):
+    def test_join_local_ratelimit_profile_change(self) -> None:
         """Tests that sending a profile update into all of the user's joined rooms isn't
         rate-limited by the rate-limiter on joins."""
 
@@ -1031,7 +1034,7 @@ class RoomJoinRatelimitTestCase(RoomBase):
     @unittest.override_config(
         {"rc_joins": {"local": {"per_second": 0.5, "burst_count": 3}}}
     )
-    def test_join_local_ratelimit_idempotent(self):
+    def test_join_local_ratelimit_idempotent(self) -> None:
         """Tests that the room join endpoints remain idempotent despite rate-limiting
         on room joins."""
         room_id = self.helper.create_room_as(self.user_id)
@@ -1056,7 +1059,7 @@ class RoomJoinRatelimitTestCase(RoomBase):
             "autocreate_auto_join_rooms": True,
         },
     )
-    def test_autojoin_rooms(self):
+    def test_autojoin_rooms(self) -> None:
         user_id = self.register_user("testuser", "password")
 
         # Check that the new user successfully joined the four rooms
@@ -1071,10 +1074,10 @@ class RoomMessagesTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.room_id = self.helper.create_room_as(self.user_id)
 
-    def test_invalid_puts(self):
+    def test_invalid_puts(self) -> None:
         path = "/rooms/%s/send/m.room.message/mid1" % (urlparse.quote(self.room_id))
         # missing keys or invalid json
         channel = self.make_request("PUT", path, b"{}")
@@ -1095,7 +1098,7 @@ class RoomMessagesTestCase(RoomBase):
         channel = self.make_request("PUT", path, b"")
         self.assertEqual(400, channel.code, msg=channel.result["body"])
 
-    def test_rooms_messages_sent(self):
+    def test_rooms_messages_sent(self) -> None:
         path = "/rooms/%s/send/m.room.message/mid1" % (urlparse.quote(self.room_id))
 
         content = b'{"body":"test","msgtype":{"type":"a"}}'
@@ -1119,11 +1122,11 @@ class RoomInitialSyncTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         # create the room
         self.room_id = self.helper.create_room_as(self.user_id)
 
-    def test_initial_sync(self):
+    def test_initial_sync(self) -> None:
         channel = self.make_request("GET", "/rooms/%s/initialSync" % self.room_id)
         self.assertEqual(200, channel.code)
 
@@ -1131,7 +1134,7 @@ class RoomInitialSyncTestCase(RoomBase):
         self.assertEqual("join", channel.json_body["membership"])
 
         # Room state is easier to assert on if we unpack it into a dict
-        state = {}
+        state: JsonDict = {}
         for event in channel.json_body["state"]:
             if "state_key" not in event:
                 continue
@@ -1160,10 +1163,10 @@ class RoomMessageListTestCase(RoomBase):
 
     user_id = "@sid1:red"
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.room_id = self.helper.create_room_as(self.user_id)
 
-    def test_topo_token_is_accepted(self):
+    def test_topo_token_is_accepted(self) -> None:
         token = "t1-0_0_0_0_0_0_0_0_0"
         channel = self.make_request(
             "GET", "/rooms/%s/messages?access_token=x&from=%s" % (self.room_id, token)
@@ -1174,7 +1177,7 @@ class RoomMessageListTestCase(RoomBase):
         self.assertTrue("chunk" in channel.json_body)
         self.assertTrue("end" in channel.json_body)
 
-    def test_stream_token_is_accepted_for_fwd_pagianation(self):
+    def test_stream_token_is_accepted_for_fwd_pagianation(self) -> None:
         token = "s0_0_0_0_0_0_0_0_0"
         channel = self.make_request(
             "GET", "/rooms/%s/messages?access_token=x&from=%s" % (self.room_id, token)
@@ -1185,7 +1188,7 @@ class RoomMessageListTestCase(RoomBase):
         self.assertTrue("chunk" in channel.json_body)
         self.assertTrue("end" in channel.json_body)
 
-    def test_room_messages_purge(self):
+    def test_room_messages_purge(self) -> None:
         store = self.hs.get_datastores().main
         pagination_handler = self.hs.get_pagination_handler()
 
@@ -1278,10 +1281,10 @@ class RoomSearchTestCase(unittest.HomeserverTestCase):
     user_id = True
     hijack_auth = False
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
 
         # Register the user who does the searching
-        self.user_id = self.register_user("user", "pass")
+        self.user_id2 = self.register_user("user", "pass")
         self.access_token = self.login("user", "pass")
 
         # Register the user who sends the message
@@ -1289,12 +1292,12 @@ class RoomSearchTestCase(unittest.HomeserverTestCase):
         self.other_access_token = self.login("otheruser", "pass")
 
         # Create a room
-        self.room = self.helper.create_room_as(self.user_id, tok=self.access_token)
+        self.room = self.helper.create_room_as(self.user_id2, tok=self.access_token)
 
         # Invite the other person
         self.helper.invite(
             room=self.room,
-            src=self.user_id,
+            src=self.user_id2,
             tok=self.access_token,
             targ=self.other_user_id,
         )
@@ -1304,7 +1307,7 @@ class RoomSearchTestCase(unittest.HomeserverTestCase):
             room=self.room, user=self.other_user_id, tok=self.other_access_token
         )
 
-    def test_finds_message(self):
+    def test_finds_message(self) -> None:
         """
         The search functionality will search for content in messages if asked to
         do so.
@@ -1333,7 +1336,7 @@ class RoomSearchTestCase(unittest.HomeserverTestCase):
         # No context was requested, so we should get none.
         self.assertEqual(results["results"][0]["context"], {})
 
-    def test_include_context(self):
+    def test_include_context(self) -> None:
         """
         When event_context includes include_profile, profile information will be
         included in the search response.
@@ -1379,7 +1382,7 @@ class PublicRoomsRestrictedTestCase(unittest.HomeserverTestCase):
         login.register_servlets,
     ]
 
-    def make_homeserver(self, reactor, clock):
+    def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
 
         self.url = b"/_matrix/client/r0/publicRooms"
 
@@ -1389,11 +1392,11 @@ class PublicRoomsRestrictedTestCase(unittest.HomeserverTestCase):
 
         return self.hs
 
-    def test_restricted_no_auth(self):
+    def test_restricted_no_auth(self) -> None:
         channel = self.make_request("GET", self.url)
         self.assertEqual(channel.code, 401, channel.result)
 
-    def test_restricted_auth(self):
+    def test_restricted_auth(self) -> None:
         self.register_user("user", "pass")
         tok = self.login("user", "pass")
 
@@ -1412,19 +1415,19 @@ class PublicRoomsTestRemoteSearchFallbackTestCase(unittest.HomeserverTestCase):
         login.register_servlets,
     ]
 
-    def make_homeserver(self, reactor, clock):
+    def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
         return self.setup_test_homeserver(federation_client=Mock())
 
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.register_user("user", "pass")
         self.token = self.login("user", "pass")
 
         self.federation_client = hs.get_federation_client()
 
-    def test_simple(self):
+    def test_simple(self) -> None:
         "Simple test for searching rooms over federation"
-        self.federation_client.get_public_rooms.side_effect = (
-            lambda *a, **k: defer.succeed({})
+        self.federation_client.get_public_rooms.side_effect = lambda *a, **k: defer.succeed(  # type: ignore[attr-defined]
+            {}
         )
 
         search_filter = {"generic_search_term": "foobar"}
@@ -1437,7 +1440,7 @@ class PublicRoomsTestRemoteSearchFallbackTestCase(unittest.HomeserverTestCase):
         )
         self.assertEqual(channel.code, 200, channel.result)
 
-        self.federation_client.get_public_rooms.assert_called_once_with(
+        self.federation_client.get_public_rooms.assert_called_once_with(  # type: ignore[attr-defined]
             "testserv",
             limit=100,
             since_token=None,
@@ -1446,12 +1449,12 @@ class PublicRoomsTestRemoteSearchFallbackTestCase(unittest.HomeserverTestCase):
             third_party_instance_id=None,
         )
 
-    def test_fallback(self):
+    def test_fallback(self) -> None:
         "Test that searching public rooms over federation falls back if it gets a 404"
 
         # The `get_public_rooms` should be called again if the first call fails
         # with a 404, when using search filters.
-        self.federation_client.get_public_rooms.side_effect = (
+        self.federation_client.get_public_rooms.side_effect = (  # type: ignore[attr-defined]
             HttpResponseException(404, "Not Found", b""),
             defer.succeed({}),
         )
@@ -1466,7 +1469,7 @@ class PublicRoomsTestRemoteSearchFallbackTestCase(unittest.HomeserverTestCase):
         )
         self.assertEqual(channel.code, 200, channel.result)
 
-        self.federation_client.get_public_rooms.assert_has_calls(
+        self.federation_client.get_public_rooms.assert_has_calls(  # type: ignore[attr-defined]
             [
                 call(
                     "testserv",
@@ -1497,14 +1500,14 @@ class PerRoomProfilesForbiddenTestCase(unittest.HomeserverTestCase):
         profile.register_servlets,
     ]
 
-    def make_homeserver(self, reactor, clock):
+    def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
         config = self.default_config()
         config["allow_per_room_profiles"] = False
         self.hs = self.setup_test_homeserver(config=config)
 
         return self.hs
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user_id = self.register_user("test", "test")
         self.tok = self.login("test", "test")
 
@@ -1522,7 +1525,7 @@ class PerRoomProfilesForbiddenTestCase(unittest.HomeserverTestCase):
 
         self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
 
-    def test_per_room_profile_forbidden(self):
+    def test_per_room_profile_forbidden(self) -> None:
         data = {"membership": "join", "displayname": "other test user"}
         request_data = json.dumps(data)
         channel = self.make_request(
@@ -1557,7 +1560,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
         login.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.creator = self.register_user("creator", "test")
         self.creator_tok = self.login("creator", "test")
 
@@ -1566,7 +1569,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self.room_id = self.helper.create_room_as(self.creator, tok=self.creator_tok)
 
-    def test_join_reason(self):
+    def test_join_reason(self) -> None:
         reason = "hello"
         channel = self.make_request(
             "POST",
@@ -1578,7 +1581,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_leave_reason(self):
+    def test_leave_reason(self) -> None:
         self.helper.join(self.room_id, user=self.second_user_id, tok=self.second_tok)
 
         reason = "hello"
@@ -1592,7 +1595,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_kick_reason(self):
+    def test_kick_reason(self) -> None:
         self.helper.join(self.room_id, user=self.second_user_id, tok=self.second_tok)
 
         reason = "hello"
@@ -1606,7 +1609,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_ban_reason(self):
+    def test_ban_reason(self) -> None:
         self.helper.join(self.room_id, user=self.second_user_id, tok=self.second_tok)
 
         reason = "hello"
@@ -1620,7 +1623,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_unban_reason(self):
+    def test_unban_reason(self) -> None:
         reason = "hello"
         channel = self.make_request(
             "POST",
@@ -1632,7 +1635,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_invite_reason(self):
+    def test_invite_reason(self) -> None:
         reason = "hello"
         channel = self.make_request(
             "POST",
@@ -1644,7 +1647,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def test_reject_invite_reason(self):
+    def test_reject_invite_reason(self) -> None:
         self.helper.invite(
             self.room_id,
             src=self.creator,
@@ -1663,7 +1666,7 @@ class RoomMembershipReasonTestCase(unittest.HomeserverTestCase):
 
         self._check_for_reason(reason)
 
-    def _check_for_reason(self, reason):
+    def _check_for_reason(self, reason: str) -> None:
         channel = self.make_request(
             "GET",
             "/_matrix/client/r0/rooms/{}/state/m.room.member/{}".format(
@@ -1704,12 +1707,12 @@ class LabelsTestCase(unittest.HomeserverTestCase):
         "org.matrix.not_labels": ["#notfun"],
     }
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user_id = self.register_user("test", "test")
         self.tok = self.login("test", "test")
         self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
 
-    def test_context_filter_labels(self):
+    def test_context_filter_labels(self) -> None:
         """Test that we can filter by a label on a /context request."""
         event_id = self._send_labelled_messages_in_room()
 
@@ -1739,7 +1742,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             events_after[0]["content"]["body"], "with right label", events_after[0]
         )
 
-    def test_context_filter_not_labels(self):
+    def test_context_filter_not_labels(self) -> None:
         """Test that we can filter by the absence of a label on a /context request."""
         event_id = self._send_labelled_messages_in_room()
 
@@ -1772,7 +1775,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             events_after[1]["content"]["body"], "with two wrong labels", events_after[1]
         )
 
-    def test_context_filter_labels_not_labels(self):
+    def test_context_filter_labels_not_labels(self) -> None:
         """Test that we can filter by both a label and the absence of another label on a
         /context request.
         """
@@ -1801,7 +1804,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             events_after[0]["content"]["body"], "with wrong label", events_after[0]
         )
 
-    def test_messages_filter_labels(self):
+    def test_messages_filter_labels(self) -> None:
         """Test that we can filter by a label on a /messages request."""
         self._send_labelled_messages_in_room()
 
@@ -1818,7 +1821,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
         self.assertEqual(events[0]["content"]["body"], "with right label", events[0])
         self.assertEqual(events[1]["content"]["body"], "with right label", events[1])
 
-    def test_messages_filter_not_labels(self):
+    def test_messages_filter_not_labels(self) -> None:
         """Test that we can filter by the absence of a label on a /messages request."""
         self._send_labelled_messages_in_room()
 
@@ -1839,7 +1842,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             events[3]["content"]["body"], "with two wrong labels", events[3]
         )
 
-    def test_messages_filter_labels_not_labels(self):
+    def test_messages_filter_labels_not_labels(self) -> None:
         """Test that we can filter by both a label and the absence of another label on a
         /messages request.
         """
@@ -1862,7 +1865,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
         self.assertEqual(len(events), 1, [event["content"] for event in events])
         self.assertEqual(events[0]["content"]["body"], "with wrong label", events[0])
 
-    def test_search_filter_labels(self):
+    def test_search_filter_labels(self) -> None:
         """Test that we can filter by a label on a /search request."""
         request_data = json.dumps(
             {
@@ -1899,7 +1902,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             results[1]["result"]["content"]["body"],
         )
 
-    def test_search_filter_not_labels(self):
+    def test_search_filter_not_labels(self) -> None:
         """Test that we can filter by the absence of a label on a /search request."""
         request_data = json.dumps(
             {
@@ -1946,7 +1949,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             results[3]["result"]["content"]["body"],
         )
 
-    def test_search_filter_labels_not_labels(self):
+    def test_search_filter_labels_not_labels(self) -> None:
         """Test that we can filter by both a label and the absence of another label on a
         /search request.
         """
@@ -1980,7 +1983,7 @@ class LabelsTestCase(unittest.HomeserverTestCase):
             results[0]["result"]["content"]["body"],
         )
 
-    def _send_labelled_messages_in_room(self):
+    def _send_labelled_messages_in_room(self) -> str:
         """Sends several messages to a room with different labels (or without any) to test
         filtering by label.
         Returns:
@@ -2056,12 +2059,12 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         login.register_servlets,
     ]
 
-    def default_config(self):
+    def default_config(self) -> Dict[str, Any]:
         config = super().default_config()
         config["experimental_features"] = {"msc3440_enabled": True}
         return config
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user_id = self.register_user("test", "test")
         self.tok = self.login("test", "test")
         self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
@@ -2136,7 +2139,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
 
         return channel.json_body["chunk"]
 
-    def test_filter_relation_senders(self):
+    def test_filter_relation_senders(self) -> None:
         # Messages which second user reacted to.
         filter = {"io.element.relation_senders": [self.second_user_id]}
         chunk = self._filter_messages(filter)
@@ -2159,7 +2162,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
             [c["event_id"] for c in chunk], [self.event_id_1, self.event_id_2]
         )
 
-    def test_filter_relation_type(self):
+    def test_filter_relation_type(self) -> None:
         # Messages which have annotations.
         filter = {"io.element.relation_types": [RelationTypes.ANNOTATION]}
         chunk = self._filter_messages(filter)
@@ -2185,7 +2188,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
             [c["event_id"] for c in chunk], [self.event_id_1, self.event_id_2]
         )
 
-    def test_filter_relation_senders_and_type(self):
+    def test_filter_relation_senders_and_type(self) -> None:
         # Messages which second user reacted to.
         filter = {
             "io.element.relation_senders": [self.second_user_id],
@@ -2205,7 +2208,7 @@ class ContextTestCase(unittest.HomeserverTestCase):
         account.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user_id = self.register_user("user", "password")
         self.tok = self.login("user", "password")
         self.room_id = self.helper.create_room_as(
@@ -2218,7 +2221,7 @@ class ContextTestCase(unittest.HomeserverTestCase):
         self.helper.invite(self.room_id, self.user_id, self.other_user_id, tok=self.tok)
         self.helper.join(self.room_id, self.other_user_id, tok=self.other_tok)
 
-    def test_erased_sender(self):
+    def test_erased_sender(self) -> None:
         """Test that an erasure request results in the requester's events being hidden
         from any new member of the room.
         """
@@ -2332,7 +2335,7 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
         room.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.room_owner = self.register_user("room_owner", "test")
         self.room_owner_tok = self.login("room_owner", "test")
 
@@ -2340,17 +2343,17 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
             self.room_owner, tok=self.room_owner_tok
         )
 
-    def test_no_aliases(self):
+    def test_no_aliases(self) -> None:
         res = self._get_aliases(self.room_owner_tok)
         self.assertEqual(res["aliases"], [])
 
-    def test_not_in_room(self):
+    def test_not_in_room(self) -> None:
         self.register_user("user", "test")
         user_tok = self.login("user", "test")
         res = self._get_aliases(user_tok, expected_code=403)
         self.assertEqual(res["errcode"], "M_FORBIDDEN")
 
-    def test_admin_user(self):
+    def test_admin_user(self) -> None:
         alias1 = self._random_alias()
         self._set_alias_via_directory(alias1)
 
@@ -2360,7 +2363,7 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
         res = self._get_aliases(user_tok)
         self.assertEqual(res["aliases"], [alias1])
 
-    def test_with_aliases(self):
+    def test_with_aliases(self) -> None:
         alias1 = self._random_alias()
         alias2 = self._random_alias()
 
@@ -2370,7 +2373,7 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
         res = self._get_aliases(self.room_owner_tok)
         self.assertEqual(set(res["aliases"]), {alias1, alias2})
 
-    def test_peekable_room(self):
+    def test_peekable_room(self) -> None:
         alias1 = self._random_alias()
         self._set_alias_via_directory(alias1)
 
@@ -2404,7 +2407,7 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
     def _random_alias(self) -> str:
         return RoomAlias(random_string(5), self.hs.hostname).to_string()
 
-    def _set_alias_via_directory(self, alias: str, expected_code: int = 200):
+    def _set_alias_via_directory(self, alias: str, expected_code: int = 200) -> None:
         url = "/_matrix/client/r0/directory/room/" + alias
         data = {"room_id": self.room_id}
         request_data = json.dumps(data)
@@ -2423,7 +2426,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         room.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.room_owner = self.register_user("room_owner", "test")
         self.room_owner_tok = self.login("room_owner", "test")
 
@@ -2434,7 +2437,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         self.alias = "#alias:test"
         self._set_alias_via_directory(self.alias)
 
-    def _set_alias_via_directory(self, alias: str, expected_code: int = 200):
+    def _set_alias_via_directory(self, alias: str, expected_code: int = 200) -> None:
         url = "/_matrix/client/r0/directory/room/" + alias
         data = {"room_id": self.room_id}
         request_data = json.dumps(data)
@@ -2456,7 +2459,9 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         self.assertIsInstance(res, dict)
         return res
 
-    def _set_canonical_alias(self, content: str, expected_code: int = 200) -> JsonDict:
+    def _set_canonical_alias(
+        self, content: JsonDict, expected_code: int = 200
+    ) -> JsonDict:
         """Calls the endpoint under test. returns the json response object."""
         channel = self.make_request(
             "PUT",
@@ -2469,7 +2474,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         self.assertIsInstance(res, dict)
         return res
 
-    def test_canonical_alias(self):
+    def test_canonical_alias(self) -> None:
         """Test a basic alias message."""
         # There is no canonical alias to start with.
         self._get_canonical_alias(expected_code=404)
@@ -2488,7 +2493,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         res = self._get_canonical_alias()
         self.assertEqual(res, {})
 
-    def test_alt_aliases(self):
+    def test_alt_aliases(self) -> None:
         """Test a canonical alias message with alt_aliases."""
         # Create an alias.
         self._set_canonical_alias({"alt_aliases": [self.alias]})
@@ -2504,7 +2509,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         res = self._get_canonical_alias()
         self.assertEqual(res, {})
 
-    def test_alias_alt_aliases(self):
+    def test_alias_alt_aliases(self) -> None:
         """Test a canonical alias message with an alias and alt_aliases."""
         # Create an alias.
         self._set_canonical_alias({"alias": self.alias, "alt_aliases": [self.alias]})
@@ -2520,7 +2525,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         res = self._get_canonical_alias()
         self.assertEqual(res, {})
 
-    def test_partial_modify(self):
+    def test_partial_modify(self) -> None:
         """Test removing only the alt_aliases."""
         # Create an alias.
         self._set_canonical_alias({"alias": self.alias, "alt_aliases": [self.alias]})
@@ -2536,7 +2541,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         res = self._get_canonical_alias()
         self.assertEqual(res, {"alias": self.alias})
 
-    def test_add_alias(self):
+    def test_add_alias(self) -> None:
         """Test removing only the alt_aliases."""
         # Create an additional alias.
         second_alias = "#second:test"
@@ -2556,7 +2561,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
             res, {"alias": self.alias, "alt_aliases": [self.alias, second_alias]}
         )
 
-    def test_bad_data(self):
+    def test_bad_data(self) -> None:
         """Invalid data for alt_aliases should cause errors."""
         self._set_canonical_alias({"alt_aliases": "@bad:test"}, expected_code=400)
         self._set_canonical_alias({"alt_aliases": None}, expected_code=400)
@@ -2566,7 +2571,7 @@ class RoomCanonicalAliasTestCase(unittest.HomeserverTestCase):
         self._set_canonical_alias({"alt_aliases": True}, expected_code=400)
         self._set_canonical_alias({"alt_aliases": {}}, expected_code=400)
 
-    def test_bad_alias(self):
+    def test_bad_alias(self) -> None:
         """An alias which does not point to the room raises a SynapseError."""
         self._set_canonical_alias({"alias": "@unknown:test"}, expected_code=400)
         self._set_canonical_alias({"alt_aliases": ["@unknown:test"]}, expected_code=400)
@@ -2580,13 +2585,13 @@ class ThreepidInviteTestCase(unittest.HomeserverTestCase):
         room.register_servlets,
     ]
 
-    def prepare(self, reactor, clock, homeserver):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.user_id = self.register_user("thomas", "hackme")
         self.tok = self.login("thomas", "hackme")
 
         self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
 
-    def test_threepid_invite_spamcheck(self):
+    def test_threepid_invite_spamcheck(self) -> None:
         # Mock a few functions to prevent the test from failing due to failing to talk to
         # a remote IS. We keep the mock for _mock_make_and_store_3pid_invite around so we
         # can check its call_count later on during the test.