public void GetLamp_GivenTrafficLightAndLampID_ReturnsLamp()
{
var greenLamp = new Lamp(1, LampColor.Green);
var trafficLight = new TrafficLight(0, new[] { greenLamp });
Mock.Get(trafficLightRepo).Setup(x => x.GetTrafficLightById(0)).Returns(trafficLight);
var actualLamp = trafficLightController.GetLamp(0, 1);
Assert.Equal(greenLamp, actualLamp);
}