public void TestMethod1()
{
var mediator = new ConcreteMediator();
var colleague1 = new ConcreteColleague(mediator);
var colleague2 = new ConcreteColleague(mediator);
mediator.AddColleague(colleague1);
mediator.AddColleague(colleague2);
colleague1.Send("form C1");
colleague2.Send("from C2");
}
