other syntax

tests/test_clustering/test_things.py

@@ -16,7 +16,7 @@ class TestConnecting(unittest.TestCase):
 
     def test_on_fail(self):
         q = {'failed': False}
-        c = Cluster([NodeDefinition('127.0.0.1', 'xguest', 'xguest', heartbeat=20)], on_fail=lambda: q.update(failed=True))
+        c = Cluster(NodeDefinition('127.0.0.1', 'xguest', 'xguest', heartbeat=20), on_fail=lambda: q.update(failed=True))
         c.start()
         time.sleep(5)
         c.shutdown()