public void Should_notify_changes_in_subscribers()
{
//arrange
var subscriberCount = 0;
var changes = 0;
var subscriber1 = new SampleEventBrokerSubscriber();
//act
eventBroker.SubscriptionAdded += (sender, args) =>
{
subscriberCount = args.SubscriberCount;
changes++;
};
eventBroker.SubscriptionRemoved += (sender, args) =>
{
subscriberCount = args.SubscriberCount;
changes++;
};
eventBroker.Subscribe(0, subscriber1.GetHashCode(), new NormalTopicSubscription((o, e) => { }));
eventBroker.Unsubscribe(0, subscriber1.GetHashCode());
//assert
Assert.AreEqual(0, subscriberCount);
Assert.AreEqual(2, changes);
}
public void Should_notify_changes_in_subscribers()
{
//arrange
var subscriberCount = 0;
var changes = 0;
var subscriber1 = new SampleEventBrokerSubscriber();
//act
eventBroker.SubscriptionAdded += (sender, args) =>
{
subscriberCount = args.SubscriberCount;
changes++;
};
eventBroker.SubscriptionRemoved += (sender, args) =>
{
subscriberCount = args.SubscriberCount;
changes++;
};
eventBroker.Subscribe(0, subscriber1.GetHashCode(), new NormalTopicSubscription((o, e) => { }));
eventBroker.Unsubscribe(0, subscriber1.GetHashCode());
//assert
Assert.Equal(0, subscriberCount);
Assert.Equal(2, changes);
}
public void Should_notify_subscribers()
{
//arrange
var subscriber1 = new SampleEventBrokerSubscriber();
var subscriber2 = new SampleEventBrokerSubscriber();
//act
eventBroker.Subscribe(0, subscriber1.GetHashCode(),
new NormalTopicSubscription((o, e) => { subscriber1.ReceivedEvent = true; }));
eventBroker.Subscribe(0, subscriber2.GetHashCode(),
new NormalTopicSubscription((o, e) => { subscriber2.ReceivedEvent = true; }));
eventBroker.InvokeEvent(0, this, new EventArgs());
//assert
Assert.True(subscriber1.ReceivedEvent);
Assert.True(subscriber2.ReceivedEvent);
}
public void Should_notify_subscribers()
{
//arrange
var subscriber1 = new SampleEventBrokerSubscriber();
var subscriber2 = new SampleEventBrokerSubscriber();
//act
eventBroker.Subscribe(0, subscriber1.GetHashCode(),
new NormalTopicSubscription((o, e) => { subscriber1.ReceivedEvent = true; }));
eventBroker.Subscribe(0, subscriber2.GetHashCode(),
new NormalTopicSubscription((o, e) => { subscriber2.ReceivedEvent = true; }));
eventBroker.InvokeEvent(0, this, new EventArgs());
//assert
Assert.True(subscriber1.ReceivedEvent);
Assert.True(subscriber2.ReceivedEvent);
}
public void Should_only_notify_subscribers_on_relevant_topic()
{
//arrange
var invoked = 0;
var subscriber1 = new SampleEventBrokerSubscriber();
var subscriber2 = new SampleEventBrokerSubscriber();
var subscriber3 = new SampleEventBrokerSubscriber();
var subscriber4 = new SampleEventBrokerSubscriber();
eventBroker.Subscribe(0, subscriber1.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber1.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(0, subscriber2.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber2.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(2, subscriber3.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber3.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(1, subscriber4.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber4.ReceivedEvent = true;
invoked++;
}));
//act
eventBroker.InvokeEvent(1, this, new EventArgs());
eventBroker.InvokeEvent(0, this, new EventArgs());
//assert
Assert.AreEqual(3, invoked);
Assert.IsTrue(subscriber1.ReceivedEvent);
Assert.IsTrue(subscriber2.ReceivedEvent);
Assert.IsFalse(subscriber3.ReceivedEvent);
Assert.IsTrue(subscriber4.ReceivedEvent);
}
public void Should_only_notify_subscribers_on_relevant_topic()
{
//arrange
var invoked = 0;
var subscriber1 = new SampleEventBrokerSubscriber();
var subscriber2 = new SampleEventBrokerSubscriber();
var subscriber3 = new SampleEventBrokerSubscriber();
var subscriber4 = new SampleEventBrokerSubscriber();
eventBroker.Subscribe(0, subscriber1.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber1.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(0, subscriber2.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber2.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(2, subscriber3.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber3.ReceivedEvent = true;
invoked++;
}));
eventBroker.Subscribe(1, subscriber4.GetHashCode(), new NormalTopicSubscription((o, e) =>
{
subscriber4.ReceivedEvent = true;
invoked++;
}));
//act
eventBroker.InvokeEvent(1, this, new EventArgs());
eventBroker.InvokeEvent(0, this, new EventArgs());
//assert
Assert.Equal(3, invoked);
Assert.True(subscriber1.ReceivedEvent);
Assert.True(subscriber2.ReceivedEvent);
Assert.False(subscriber3.ReceivedEvent);
Assert.True(subscriber4.ReceivedEvent);
}