Fix tests

src/main/java/stateandbehavior/StopWatch.java

@@ -43,7 +43,7 @@ public class StopWatch {
   
   /** forteller klokken at ticks antall tikk har gått. */
   public void tick(int ticks) {
-    // this.totalTicks += ticks;
+    this.totalTicks += ticks;
     if (this.hasBeenStarted ^ this.hasBeenStopped)
       this.totalTime += ticks;
   }