public void OnCompleted_CallsCompleted()
{
// Arrange
var updateSource = new AsyncUpdateSource();
var observer = Substitute.For <IObserver <float> >();
updateSource.Subscribe(observer);
// Act
updateSource.OnCompleted();
// Assert
observer.Received().OnCompleted();
}
public void Unsubscribe_CanBeCalledFromOnCompleted()
{
// Arrange
var updateSource = new AsyncUpdateSource();
var observer = Substitute.For <IObserver <float> >();
var subscription = updateSource.Subscribe(observer);
observer.When(x => x.OnCompleted()).Do(x => subscription.Dispose());
// Act
updateSource.OnCompleted();
// Assert
observer.Received(1).OnCompleted();
}