public static void TestBetter()
{
Console.WriteLine("====== Test Better ======");
var dealer = new CarDealer();
var michael = new Consumer("Michael");
WeakEventManager <CarDealer, CarInfoEventArgs> .AddListener(dealer, michael);
dealer.NewCar("Mercedes");
var nick = new Consumer("Nick");
WeakEventManager <CarDealer, CarInfoEventArgs> .AddListener(dealer, nick);
dealer.NewCar("Ferrari");
WeakEventManager <CarDealer, CarInfoEventArgs> .RemoveListener(dealer, michael);
dealer.NewCar("Toyota");
var dealer_1 = new TestDealer_1();
var listener_1 = new TestListener_1();
WeakEventManager <TestDealer_1, TestArgs_1> .AddListener(dealer_1, listener_1);
dealer_1.Test("Hello");
Console.WriteLine("Setting listener to null");
michael = null;
listener_1 = null;
TriggerGC();
dealer.NewCar("Mercedes");
Console.WriteLine("Setting source to null");
dealer = null;
TriggerGC();
}