Server utilisation, ensure doctests run

geraintpalmer · geraintpalmer · commit 8aed3c6b8822 · 2017-06-23T11:18:34.000+01:00
diff --git a/ciw/node.py b/ciw/node.py
@@ -432,9 +432,9 @@ def wrap_up_servers(self, current_time):
         """
         if self.c != float('Inf'):
             for srvr in self.servers:
-                srvr.total_time = current_time - srvr.start_date
+                srvr.total_time = self.increment_time(current_time, -srvr.start_date)
                 if srvr.busy:
-                    srvr.busy_time += (current_time - srvr.cust.arrival_date)
+                    srvr.busy_time += self.increment_time(current_time, -srvr.cust.arrival_date)
 
 
     def write_individual_record(self, individual):
