public void AircraftFactoryCreatesRocketTest()
        {
            var factory = new AircraftFactory();
            var rocket  = factory.CreateVehicle <Rocket>();

            Assert.IsInstanceOfType(rocket, typeof(Rocket));
        }
        public void AircraftFactoryCreatesPlaneTest()
        {
            var factory = new AircraftFactory();
            var plane   = factory.CreateVehicle <Plane>();

            Assert.IsInstanceOfType(plane, typeof(Plane));
        }
        public void AircraftFactoryCreatesDroneTest()
        {
            var factory = new AircraftFactory();
            var drone   = factory.CreateVehicle <Drone>();

            Assert.IsInstanceOfType(drone, typeof(Drone));
        }