public void GetWaitingTime()
        {
            TrafficLight t = new TrafficLight(true, 1, 2);

            double waitingTime=t.GetWaitingTime(.5);
               Assert.AreEqual(0, waitingTime);

            waitingTime = t.GetWaitingTime(2);
               Assert.AreEqual(1, waitingTime);

            waitingTime = t.GetWaitingTime(3.5);
               Assert.AreEqual(0, waitingTime);

               waitingTime = t.GetWaitingTime(1);
               Assert.AreEqual(2, waitingTime);

               waitingTime = t.GetWaitingTime(3);
               Assert.AreEqual(0, waitingTime);
        }