public void DuckSimulatorTest()
{
var mallardDuck = new MallardDuck(new FlyWithWings(), new Quack());
mallardDuck.Display();
mallardDuck.PerformFly();
mallardDuck.PerformQuack();
//Dynamically change behavior
mallardDuck.ChangeFlyBehaviour(new FlyRocketPower());
mallardDuck.PerformFly();
Assert.True(true);
}