public void ConstructorWithParameter()
{
var subject = new DelegateObserver <int>();
IDisposable exec(IObserver <int> o)
{
subject.Next += o.OnNext;
subject.Error += o.OnError;
subject.Completed += o.OnCompleted;
return(new DelegateDisposable(() =>
{
subject.Next -= o.OnNext;
subject.Error -= o.OnError;
subject.Completed -= o.OnCompleted;
}));
}
var observable = new DelegateObservable <int>(exec);
int next = 0;
Exception exception = null;
bool completed = false;
var observer = new DelegateObserver <int>(i => next = i, eee => exception = eee, () => completed = true);
var disposer = observable.Subscribe(observer);
subject.OnNext(3);
subject.OnError(new ArgumentNullException(TEST));
subject.OnCompleted();
// assert
next.Is(3);
exception.IsInstanceOf <ArgumentNullException>();
(exception as ArgumentNullException)?.ParamName.Is(TEST);
completed.IsTrue();
next = 0;
exception = null;
completed = false;
// release subscribe.
disposer.Dispose();
subject.OnNext(3);
subject.OnError(new ArgumentOutOfRangeException(TEST));
subject.OnCompleted();
next.Is(0);
exception.IsNull();
completed.IsFalse();
}
public void CallOnCompleted()
{
string completeMessage = null;
var observer = new DelegateObserver <string>(null, onCompleted: () => completeMessage = TEST);
observer.OnCompleted();
completeMessage.Is(TEST);
}
public void SetNull()
{
var subject = new DelegateObserver <int>();
IDisposable exec(IObserver <int> o)
{
subject.Next += o.OnNext;
subject.Error += o.OnError;
subject.Completed += o.OnCompleted;
return(new DelegateDisposable(() =>
{
subject.Next -= o.OnNext;
subject.Error -= o.OnError;
subject.Completed -= o.OnCompleted;
}));
}
var observable = new DelegateObservable <int>(exec);
int next = 0;
Exception exception = null;
bool completed = false;
var observer = new DelegateObserver <int>(i => next = i, eee => exception = eee, () => completed = true);
var disposer = observable.Subscribe(observer);
// Since it should be related to the subject, it should react even if replacing delegate.
observable.DelegateOfSubscribe = null;
subject.OnNext(6);
next.Is(6);
subject.OnError(new ArgumentNullException(TEST));
exception.IsInstanceOf <ArgumentNullException>();
(exception as ArgumentNullException)?.ParamName.Is(TEST);
subject.OnCompleted();
completed.IsTrue();
}
public void ManySubscriber()
{
var subject = new DelegateObserver <int>();
IDisposable exec(IObserver <int> o)
{
subject.Next += o.OnNext;
subject.Error += o.OnError;
subject.Completed += o.OnCompleted;
return(new DelegateDisposable(() =>
{
subject.Next -= o.OnNext;
subject.Error -= o.OnError;
subject.Completed -= o.OnCompleted;
}));
}
var observable = new DelegateObservable <int>();
observable.DelegateOfSubscribe = exec;
int next1 = 0;
Exception exception1 = null;
bool completed1 = false;
var observer1 = new DelegateObserver <int>(i => next1 = i, eee => exception1 = eee, () => completed1 = true);
var disposer1 = observable.Subscribe(observer1);
int next2 = 0;
Exception exception2 = null;
bool completed2 = false;
var observer2 = new DelegateObserver <int>(i => next2 = i, eee => exception2 = eee, () => completed2 = true);
var disposer2 = observable.Subscribe(observer2);
// onNext
subject.OnNext(3);
next1.Is(3);
next2.Is(3);
// onError
subject.OnError(new ArgumentOutOfRangeException(TEST));
exception1.IsInstanceOf <ArgumentOutOfRangeException>();
(exception1 as ArgumentOutOfRangeException)?.ParamName.Is(TEST);
exception2.IsInstanceOf <ArgumentOutOfRangeException>();
(exception2 as ArgumentOutOfRangeException)?.ParamName.Is(TEST);
// onComplete
subject.OnCompleted();
completed1.IsTrue();
completed2.IsTrue();
// re-initialize
next1 = 0;
exception1 = null;
completed1 = false;
next2 = 0;
exception2 = null;
completed2 = false;
// disposing only disposer1.
disposer1.Dispose();
subject.OnNext(6);
next1.Is(0);
next2.Is(6);
subject.OnError(new NotSupportedException(TEST));
exception1.IsNull();
//
exception2.IsInstanceOf <NotSupportedException>();
(exception2 as NotSupportedException)?.Message.Is(TEST);
subject.OnCompleted();
completed1.IsFalse();
completed2.IsTrue();
}