Program.cs

using System;

namespace StatePattern
{
 static class Program
 {
 public static void Main()
 {
 LegacyTest();
 Console.WriteLine();
 var gumballmachine = new GumballMachine(5);
 gumballmachine.InsertQuarter();
 gumballmachine.TurnCrank();
 gumballmachine.InsertQuarter();
 gumballmachine.TurnCrank();
 }

 private static void LegacyTest()
 {
 var machine = new Legacy.GumballMachine(2);
 machine.InsertQuarter();
 machine.TurnCrank();
 machine.InsertQuarter();
 machine.EjectQuarter();
 machine.InsertQuarter();
 }
 }
}