test(lobby): lock host transition ownership boundary

lobby/tests.py

@@ -1,3 +1,4 @@
+import inspect
 import json
 import tempfile
 from datetime import timedelta
@@ -60,6 +61,24 @@ class LobbyGameplayExtractionTests(TestCase):
         self.assertIs(lobby_views._finish_game, gameplay_services.finish_game)
         self.assertIs(lobby_views._build_scoreboard_phase_event, gameplay_payloads.build_scoreboard_phase_event)
 
+    def test_start_next_round_view_source_stays_http_thin(self):
+        source = inspect.getsource(inspect.unwrap(lobby_views.start_next_round))
+
+        self.assertIn("transition = _start_next_round(session)", source)
+        self.assertNotIn("RoundConfig", source)
+        self.assertNotIn("RoundQuestion", source)
+        self.assertNotIn("build_start_next_round_response", source)
+        self.assertNotIn("build_start_next_round_phase_event", source)
+
+    def test_finish_game_view_source_stays_http_thin(self):
+        source = inspect.getsource(inspect.unwrap(lobby_views.finish_game))
+
+        self.assertIn("transition = _finish_game(session)", source)
+        self.assertNotIn("RoundConfig", source)
+        self.assertNotIn("RoundQuestion", source)
+        self.assertNotIn("build_finish_game_response", source)
+        self.assertNotIn("build_finish_game_phase_event", source)
+
     @patch("lobby.views.sync_broadcast_phase_event")
     @patch("lobby.views._start_next_round")
     def test_start_next_round_view_delegates_transition_to_service(