Index: tests/test_syringe.py
===================================================================
diff -u -r70a23d4addc204861b2b65181725ae41279d7acd -rdcc724fe28fdd2600c916f6e6ac4a9ad6f0b4a9b
--- tests/test_syringe.py	(.../test_syringe.py)	(revision 70a23d4addc204861b2b65181725ae41279d7acd)
+++ tests/test_syringe.py	(.../test_syringe.py)	(revision dcc724fe28fdd2600c916f6e6ac4a9ad6f0b4a9b)
@@ -25,9 +25,9 @@
     sleep(2)
 
     # log in to HD and DG as tester
-#    if hd.cmd_log_in_to_hd() == 0:
-#        exit(1)
-#    sleep(1)
+    if hd.cmd_log_in_to_hd() == 0:
+        exit(1)
+    sleep(1)
 
 #    hd.syringe_pump.cmd_syringe_pump_operation(0,0.0,0.0)  # stop
 #    hd.syringe_pump.cmd_syringe_pump_operation(1,0.0,0.0)  # retract