public void TestRadar()
{
Rover myRover = new Rover();
Radar myRadar = new Radar();
Battery bat1 = new Battery (50);
myRover.AddBattery (bat1);
myRover.AttachDevice(myRadar);
Assert.IsTrue(myRadar.Battery.Charge == 50);
Assert.IsTrue(myRadar.Connected == true);
myRadar.Operate ();
Assert.IsTrue(myRadar.Battery.Charge == 46);
}
