public void Visitor_Test()
{
var structure = new Structure();
var e1 = new Element01()
{
State = 0
};
var e2 = new Element02()
{
State = 1
};
var v1 = new VisitorA();
var v2 = new VisitorB();
structure.Elements.Add(e1);
structure.Elements.Add(e2);
structure.Accept(v1);
Assert.IsTrue(e1.State == 2 && e2.State == 3);
structure.Accept(v2);
Assert.IsTrue(e1.State == 12 && e2.State == 13);
}
static void Main(string[] args)
{
IBase obj = new BaseElement();
IElement obj1 = new Element01();
obj.method01(); //call base
obj1.method01();
Console.ReadLine();
}
