Fix type hints in knocking tests

changelog.d/14887.misc

@@ -0,0 +1 @@
+Add missing type hints.

mypy.ini

@@ -40,7 +40,6 @@ exclude = (?x)
    |tests/events/test_utils.py
    |tests/federation/test_federation_catch_up.py
    |tests/federation/test_federation_sender.py
-   |tests/federation/transport/test_knocking.py
    |tests/handlers/test_typing.py
    |tests/http/federation/test_matrix_federation_agent.py
    |tests/http/federation/test_srv_resolver.py

tests/federation/transport/test_knocking.py

@@ -23,10 +23,10 @@
 from synapse.types import RoomAlias
 
 from tests.test_utils import event_injection
-from tests.unittest import FederatingHomeserverTestCase, TestCase
+from tests.unittest import FederatingHomeserverTestCase, HomeserverTestCase
 
 
-class KnockingStrippedStateEventHelperMixin(TestCase):
+class KnockingStrippedStateEventHelperMixin(HomeserverTestCase):
     def send_example_state_events_to_room(
         self,
         hs: "HomeServer",
@@ -49,7 +49,7 @@ def send_example_state_events_to_room(
         # To set a canonical alias, we'll need to point an alias at the room first.
         canonical_alias = "#fancy_alias:test"
         self.get_success(
-            self.store.create_room_alias_association(
+            self.hs.get_datastores().main.create_room_alias_association(
                 RoomAlias.from_string(canonical_alias), room_id, ["test"]
             )
         )

tests/rest/client/test_sync.py

@@ -294,9 +294,7 @@ def test_sync_backwards_typing(self) -> None:
             self.make_request("GET", sync_url % (access_token, next_batch))
 
 
-class SyncKnockTestCase(
-    unittest.HomeserverTestCase, KnockingStrippedStateEventHelperMixin
-):
+class SyncKnockTestCase(KnockingStrippedStateEventHelperMixin):
     servlets = [
         synapse.rest.admin.register_servlets,
         login.register_servlets,