public void Register_Observer2()
{
// Arrange
var subject = new Subject();
var observer2 = new Observer2();
// Act
var unsubscriber2 = observer2.Register(subject);
// Assert
Assert.AreEqual(1, subject.Observers.Count);
}
public void Dispose_Any_Observer()
{
// Arrange
var subject = new Subject();
var observer1 = new Observer1();
var observer2 = new Observer2();
var observer3 = new Observer3();
var unsubscriber1 = observer1.Register(subject);
var unsubscriber2 = observer2.Register(subject);
var unsubscriber3 = observer3.Register(subject);
// Act
unsubscriber2.Dispose();
// Assert
Assert.AreEqual(2, subject.Observers.Count);
}
