test: Fix incorrect assertions in conductor tests

tests/test_conductor_tech_lead.py

@@ -61,13 +61,13 @@ class TestTopologicalSort(unittest.TestCase):
   self.assertEqual(conductor_tech_lead.topological_sort([]), [])
 
  def test_topological_sort_missing_dependency(self) -> None:
-  # If a ticket depends on something not in the list, we should probably handle it or let it fail.
-  # Usually in our context, we only care about dependencies within the same track.
+  # If a ticket depends on something not in the list, we should handle it or let it fail.
+  # The TrackDAG silently ignores missing dependencies, causing cycle detection to trigger.
   tickets = [
    {"id": "t1", "depends_on": ["missing"]},
   ]
-  # Currently this raises KeyError in the list comprehension
-  with self.assertRaises(KeyError):
+  # Currently this raises ValueError due to cycle detection on incomplete sort
+  with self.assertRaises(ValueError):
    conductor_tech_lead.topological_sort(tickets)
 
 def test_topological_sort_vlog(vlogger) -> None: