fix typo

controller/test_controller.py

@@ -348,7 +348,7 @@ class ControllerTestCase(unittest.TestCase):
     def check_job_transition(self, job, prev_state, next_state, *, ignore_state=_UNSET, timeout=10):
         def get_state(job):
             self.session.refresh(job)
-            return V(job.state)
+            return J(job.state)
 
         self.assertEqual(get_state(job), prev_state)
         yield