public void Why_Need_Event_When_Delegate_Can_Do_What_Event_Do()
{
MyConsolWrite myConsolWrite = MyTest.ConsoleWrite;
//Event version
var test1 = new MyTest();
test1.DummyEvent += myConsolWrite;
test1.OnDummyEventHappened("I am event");
//Event version with field
var test1_1 = new MyTest();
test1_1.DummyEventProperty += myConsolWrite;
test1_1.OnDummyEventHappened("I am event");
//delegate version
var test2 = new MyTest();
test2.DummyDelegate = myConsolWrite;
test2.OnDummyDelegateHappened("I am delegate");
test2.DummyDelegate = null;
TestDelegate testDelegate = () => test2.OnDummyDelegateHappened("I will have exception, that's why i should not be a public property/field. danger to be easily override");
Assert.Throws <NullReferenceException>(testDelegate);
}