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-rw-r--r--tests/storage/test_roommember.py40
1 files changed, 24 insertions, 16 deletions
diff --git a/tests/storage/test_roommember.py b/tests/storage/test_roommember.py
index f4c4661aaf..36fcab06b5 100644
--- a/tests/storage/test_roommember.py
+++ b/tests/storage/test_roommember.py
@@ -12,6 +12,8 @@
 # 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 typing import List, Optional, Tuple, cast
+
 from twisted.test.proto_helpers import MemoryReactor
 
 from synapse.api.constants import Membership
@@ -110,21 +112,24 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase):
     def test__null_byte_in_display_name_properly_handled(self) -> None:
         room = self.helper.create_room_as(self.u_alice, tok=self.t_alice)
 
-        res = self.get_success(
-            self.store.db_pool.simple_select_list(
-                "room_memberships",
-                {"user_id": "@alice:test"},
-                ["display_name", "event_id"],
-            )
+        res = cast(
+            List[Tuple[Optional[str], str]],
+            self.get_success(
+                self.store.db_pool.simple_select_list(
+                    "room_memberships",
+                    {"user_id": "@alice:test"},
+                    ["display_name", "event_id"],
+                )
+            ),
         )
         # Check that we only got one result back
         self.assertEqual(len(res), 1)
 
         # Check that alice's display name is "alice"
-        self.assertEqual(res[0]["display_name"], "alice")
+        self.assertEqual(res[0][0], "alice")
 
         # Grab the event_id to use later
-        event_id = res[0]["event_id"]
+        event_id = res[0][1]
 
         # Create a profile with the offending null byte in the display name
         new_profile = {"displayname": "ali\u0000ce"}
@@ -139,21 +144,24 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase):
             tok=self.t_alice,
         )
 
-        res2 = self.get_success(
-            self.store.db_pool.simple_select_list(
-                "room_memberships",
-                {"user_id": "@alice:test"},
-                ["display_name", "event_id"],
-            )
+        res2 = cast(
+            List[Tuple[Optional[str], str]],
+            self.get_success(
+                self.store.db_pool.simple_select_list(
+                    "room_memberships",
+                    {"user_id": "@alice:test"},
+                    ["display_name", "event_id"],
+                )
+            ),
         )
         # Check that we only have two results
         self.assertEqual(len(res2), 2)
 
         # Filter out the previous event using the event_id we grabbed above
-        row = [row for row in res2 if row["event_id"] != event_id]
+        row = [row for row in res2 if row[1] != event_id]
 
         # Check that alice's display name is now None
-        self.assertEqual(row[0]["display_name"], None)
+        self.assertIsNone(row[0][0])
 
     def test_room_is_locally_forgotten(self) -> None:
         """Test that when the last local user has forgotten a room it is known as forgotten."""