diff --git a/test_optimize_node_order.py b/test_optimize_node_order.py
index c23bff7..0c4471e 100644
--- a/test_optimize_node_order.py
+++ b/test_optimize_node_order.py
@@ -24,3 +24,4 @@ def tst_optimize_node_order():
 
 if __name__ == "__main__":
     tst_optimize_node_order()
+    quit()