3 files changed, 11 insertions, 6 deletions
diff --git a/tests/rest/client/test_account.py b/tests/rest/client/test_account.py
index a43a137273..1f9b65351e 100644
--- a/tests/rest/client/test_account.py
+++ b/tests/rest/client/test_account.py
@@ -949,7 +949,7 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
         client_secret: str,
         next_link: Optional[str] = None,
         expect_code: int = 200,
-    ) -> str:
+    ) -> Optional[str]:
         """Request a validation token to add an email address to a user's account
 
         Args:
@@ -959,7 +959,8 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
             expect_code: Expected return code of the call
 
         Returns:
-            The ID of the new threepid validation session
+            The ID of the new threepid validation session, or None if the response
+            did not contain a session ID.
         """
         body = {"client_secret": client_secret, "email": email, "send_attempt": 1}
         if next_link:
diff --git a/tests/rest/client/test_profile.py b/tests/rest/client/test_profile.py
index 29bed0e872..8de5a342ae 100644
--- a/tests/rest/client/test_profile.py
+++ b/tests/rest/client/test_profile.py
@@ -153,18 +153,22 @@ class ProfileTestCase(unittest.HomeserverTestCase):
         )
         self.assertEqual(channel.code, 400, channel.result)
 
-    def _get_displayname(self, name: Optional[str] = None) -> str:
+    def _get_displayname(self, name: Optional[str] = None) -> Optional[str]:
         channel = self.make_request(
             "GET", "/profile/%s/displayname" % (name or self.owner,)
         )
         self.assertEqual(channel.code, 200, channel.result)
-        return channel.json_body["displayname"]
+        # FIXME: If a user has no displayname set, Synapse returns 200 and omits a
+        # displayname from the response. This contradicts the spec, see #13137.
+        return channel.json_body.get("displayname")
 
-    def _get_avatar_url(self, name: Optional[str] = None) -> str:
+    def _get_avatar_url(self, name: Optional[str] = None) -> Optional[str]:
         channel = self.make_request(
             "GET", "/profile/%s/avatar_url" % (name or self.owner,)
         )
         self.assertEqual(channel.code, 200, channel.result)
+        # FIXME: If a user has no avatar set, Synapse returns 200 and omits an
+        # avatar_url from the response. This contradicts the spec, see #13137.
         return channel.json_body.get("avatar_url")
 
     @unittest.override_config({"max_avatar_size": 50})
diff --git a/tests/rest/client/test_relations.py b/tests/rest/client/test_relations.py
index aa84906548..ad03eee17b 100644
--- a/tests/rest/client/test_relations.py
+++ b/tests/rest/client/test_relations.py
@@ -800,7 +800,7 @@ class RelationPaginationTestCase(BaseRelationsTestCase):
             )
             expected_event_ids.append(channel.json_body["event_id"])
 
-        prev_token = ""
+        prev_token: Optional[str] = ""
         found_event_ids: List[str] = []
         for _ in range(20):
             from_token = ""