private void Start()
{
SubjectA sA = new SubjectA();
ObserverA oA = new ObserverA(sA);
//ObserverB oB = new ObserverB(sA);
sA.AttachObserver(oA);
sA.AttachObserver(new ObserverB(sA));
sA.SetSubjectName("状态2");
}
public void Test_Subscribe_OneSub_SubCreateAndSubscribe()
{
ObsInt oiA = new ObsInt(17);
ObserverA obsA = new ObserverA();
Assert.AreEqual(obsA.InitialState, obsA.State);
oiA.Value = 22;
Assert.AreEqual(obsA.InitialState, obsA.State);
oiA.ValueChanged += obsA.MethodA;
Assert.AreEqual(obsA.InitialState, obsA.State);
}
private static void TraditionalDemo()
{
using (var subject = new Traditional.Observables.Subject())
using (var observerA = new ObserverA(subject))
using (var observerB = new ObserverB(subject))
{
for (int i = 0; i < 10; i++)
{
subject.ChangeState();
Thread.Sleep(i);
}
}
}
public void Observer_Test()
{
var sub = new Subject();
var obsA = new ObserverA(sub);
var obsB = new ObserverB(sub);
sub.State = "Mike";
var resA = obsA.State;
var resB = obsB.State;
Assert.IsTrue(resA.Contains(sub.State));
Assert.IsTrue(resB.Contains(sub.State));
}
public void Test_Subscribe_TwoSub_Complete()
{
ObsInt oiA = new ObsInt(17);
ObserverA obsA = new ObserverA();
ObserverB obsB = new ObserverB();
Assert.AreEqual(obsA.InitialState, obsA.State);
Assert.AreEqual(obsB.InitialState, obsB.State);
oiA.ValueChanged += obsA.MethodA;
oiA.ValueChanged += obsB.MethodB;
oiA.Value = 35;
Assert.AreEqual($"Value was updated to 35", obsA.State);
Assert.AreEqual($"Value is now 35", obsB.State);
}
public void Test_Subscribe_OneSub_Complete()
{
ObsInt oiA = new ObsInt(17);
ObserverA obsA = new ObserverA();
Assert.AreEqual(obsA.InitialState, obsA.State);
oiA.Value = 22;
Assert.AreEqual(obsA.InitialState, obsA.State);
oiA.ValueChanged += obsA.MethodA;
oiA.Value = 35;
Assert.AreNotEqual(obsA.InitialState, obsA.State);
Assert.AreNotEqual($"Value was updated to 22", obsA.State);
Assert.AreEqual($"Value was updated to 35", obsA.State);
}
public void ObserverPattern_TestIfObbserversWerNotified()
{
// Arrange
var subject = new SubjectObserver();
var observerA = new ObserverA(subject);
var observerB = new ObserverB(subject);
// Act
const string state = "bla bla";
subject.BuisnessMethod(state);
subject.Notify();
// Assert
Assert.AreEqual(observerA.State, state);
Assert.AreEqual(observerB.State, state);
}
static void Main(string[] args)
{
var subject = new Subject();
var observerA = new ObserverA();
subject.Attach(observerA);
var observerB = new ObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.Detach(observerB);
subject.SomeBusinessLogic();
}
public void DisplayExample()
{
var subject = new Subject();
var observerA = new ObserverA();
var observerB = new ObserverB();
subject.Attach(observerA);
subject.Attach(observerB);
subject.TriggerExample();
subject.Detach(observerA);
Thread.Sleep(20); // Simulate time
subject.TriggerExample();
}
public void Observer()
{
// permet à des objets de s'inscrire à des events d'un autre objet
// permet d'éviter de boucler périodiquement pour checker l'état #Hedia #Polling
Subject subject = new Subject();
ObserverA observerA = new ObserverA();
subject.Attach(observerA);
ObserverB observerB = new ObserverB();
subject.Attach(observerB);
subject.SomeWork();
subject.SomeWork();
subject.Detach(observerB);
subject.SomeWork();
}
public void Test_Subscribe_OneSub_SubCreate()
{
ObserverA obsA = new ObserverA();
Assert.AreEqual(obsA.InitialState, obsA.State);
}