public void TestAddRemoveSubscriber()
{
var foo = new Mock <EventHandler>();
var bar = new Mock <EventHandler>();
var eventSubscriber = new Mock <IEventSubscriber>();
eventSubscriber.Setup((o) => o.GetSubscribedEvents())
.Returns(new Dictionary <string, EventHandler>()
{
{ "foo", foo.Object },
{ "bar", bar.Object },
});
dispatcher.AddSubscriber(eventSubscriber.Object);
dispatcher.Dispatch("foo", this);
foo.Verify((o) => o.Invoke(this, It.IsAny <BucketEventArgs>()), Times.Once);
bar.Verify((o) => o.Invoke(this, It.IsAny <BucketEventArgs>()), Times.Never);
dispatcher.RemoveSubscriber(eventSubscriber.Object);
dispatcher.Dispatch("bar", this);
foo.Verify((o) => o.Invoke(this, It.IsAny <BucketEventArgs>()), Times.Once);
bar.Verify((o) => o.Invoke(this, It.IsAny <BucketEventArgs>()), Times.Never);
}