Index: tests/test_demo.py
===================================================================
diff -u -rc6c42e21248dd7f4bf391b75541aaaae14a1ab42 -rae1e423f7cf68432e1e3daf01b50a162de4563e4
--- tests/test_demo.py	(.../test_demo.py)	(revision c6c42e21248dd7f4bf391b75541aaaae14a1ab42)
+++ tests/test_demo.py	(.../test_demo.py)	(revision ae1e423f7cf68432e1e3daf01b50a162de4563e4)
@@ -94,5 +94,24 @@
     print(dialin.__version__)
 
 
+def test_valves():
+    dg = DG()
+    if dg.cmd_log_in_to_dg():
+        print(dg.valves.get_valve_states())
+
+        for valve_id in range(0, 13):
+            dg.valves.cmd_valve_override(False, valve_id, RESET)
+
+        for valve_id in range(0, 13):
+            if valve_id % 2 == 0:
+                dg.valves.cmd_valve_override(True, valve_id, NO_RESET)
+            else:
+                dg.valves.cmd_valve_override(False, valve_id, RESET)
+
+        print("Sleeping...")
+        time.sleep(5)
+        print(dg.valves.get_valve_states())
+
+
 if __name__ == '__main__':
-    test_dialin_version()
+    test_valves()