public void SubscribeAndUnsubscribeCauseChangeMessages()
{
var messenger = new MvxMessengerHub();
MvxSubscriberChangeMessage subscriberChangeMessage = null;
var changeToken = messenger.Subscribe <MvxSubscriberChangeMessage>(message => subscriberChangeMessage = message);
var token = messenger.Subscribe <TestMessage>(m =>
{
// stuff
});
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(1, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
subscriberChangeMessage = null;
messenger.Unsubscribe <TestMessage>(token);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(0, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
}
public void DisposeTokenPreventsMessagesBeingReceived()
{
var messenger = new MvxMessengerHub();
Action <TestMessage> action = _ => Assert.That(false, "This event should not fire!");
var id = messenger.Subscribe(action);
id.Dispose();
messenger.Publish(new TestMessage(this));
}
public void UnsubscribePreventsMessagesBeingReceived()
{
var messenger = new MvxMessengerHub();
Action <TestMessage> action = _ => Assert.True(false, "This event should not fire!");
var id = messenger.Subscribe(action);
messenger.Unsubscribe <TestMessage>(id);
messenger.Publish(new TestMessage(this));
}
public void MultipleSubscribeAndPublishAllowsMessageToBeReceived()
{
var messenger = new MvxMessengerHub();
var message = new TestMessage(this);
var otherMessage = new OtherTestMessage(this);
var messageReceived = 0;
messenger.Subscribe<TestMessage>(m =>
{
Assert.That(m, Is.EqualTo(message));
Assert.That(m.Sender, Is.EqualTo(this));
messageReceived++;
});
var otherMessageReceived = 0;
messenger.Subscribe<OtherTestMessage>(m =>
{
Assert.That(m, Is.EqualTo(otherMessage));
Assert.That(m.Sender, Is.EqualTo(this));
otherMessageReceived++;
});
messenger.Publish(otherMessage);
Assert.AreEqual(0, messageReceived);
Assert.AreEqual(1, otherMessageReceived);
messenger.Publish(message);
Assert.AreEqual(1, messageReceived);
Assert.AreEqual(1, otherMessageReceived);
messenger.Publish(message);
Assert.AreEqual(2, messageReceived);
Assert.AreEqual(1, otherMessageReceived);
messenger.Publish(message);
Assert.AreEqual(3, messageReceived);
Assert.AreEqual(1, otherMessageReceived);
messenger.Publish(otherMessage);
Assert.AreEqual(3, messageReceived);
Assert.AreEqual(2, otherMessageReceived);
}
public void HasSubscriptionsForIsCorrect()
{
var messenger = new MvxMessengerHub();
Assert.AreEqual(false, messenger.HasSubscriptionsFor <MvxSubscriberChangeMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsFor <TestMessage>());
var changeToken = messenger.Subscribe <MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(true, messenger.HasSubscriptionsFor <MvxSubscriberChangeMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsFor <TestMessage>());
var token = messenger.Subscribe <TestMessage>(m =>
{
// stuff
});
Assert.AreEqual(true, messenger.HasSubscriptionsFor <MvxSubscriberChangeMessage>());
Assert.AreEqual(true, messenger.HasSubscriptionsFor <TestMessage>());
messenger.Unsubscribe <TestMessage>(token);
Assert.AreEqual(true, messenger.HasSubscriptionsFor <MvxSubscriberChangeMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsFor <TestMessage>());
}
public void UnknownUnsubscribeDoesNotCauseException()
{
var messenger = new MvxMessengerHub();
messenger.Unsubscribe <TestMessage>(new MvxSubscriptionToken(Guid.NewGuid(), () => { }, new object()));
messenger.Subscribe <TestMessage>(m =>
{
// stuff
});
messenger.Unsubscribe <TestMessage>(new MvxSubscriptionToken(Guid.NewGuid(), () => { }, new object()));
messenger.Unsubscribe <TestMessage>(new MvxSubscriptionToken(Guid.Empty, () => { }, new object()));
}
public void SubscribeAndPublishAllowsMessageToBeReceived()
{
var messenger = new MvxMessengerHub();
var message = new TestMessage(this);
var messageReceived = false;
messenger.Subscribe<TestMessage>(m =>
{
Assert.That(m, Is.EqualTo(message));
Assert.That(m.Sender, Is.EqualTo(this));
messageReceived = true;
});
messenger.Publish(message);
Assert.IsTrue(messageReceived);
}
public void SubscribeAndPublishAllowsMessageToBeReceived()
{
var messenger = new MvxMessengerHub();
var message = new TestMessage(this);
var messageReceived = false;
messenger.Subscribe <TestMessage>(m =>
{
Assert.That(m, Is.EqualTo(message));
Assert.That(m.Sender, Is.EqualTo(this));
messageReceived = true;
});
messenger.Publish(message);
Assert.IsTrue(messageReceived);
}
public void PurgeCausesChangeMessage()
{
var messenger = new MvxMessengerHub();
MvxSubscriberChangeMessage subscriberChangeMessage = null;
var changeToken = messenger.Subscribe <MvxSubscriberChangeMessage>(message => subscriberChangeMessage = message);
CreateShortLivedSubscription(messenger);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(1, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
subscriberChangeMessage = null;
System.Threading.Thread.Sleep(100);
GC.Collect();
GC.WaitForFullGCComplete();
messenger.Publish(new TestMessage(this));
System.Threading.Thread.Sleep(100);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(0, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
}
public void PurgeCausesChangeMessage()
{
var messenger = new MvxMessengerHub();
MvxSubscriberChangeMessage subscriberChangeMessage = null;
var changeToken = messenger.Subscribe <MvxSubscriberChangeMessage>(message => subscriberChangeMessage = message);
CreateShortLivedSubscription(messenger);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(1, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
subscriberChangeMessage = null;
Thread.Sleep(100);
GC.Collect();
GC.WaitForFullGCComplete();
messenger.Publish(new TestMessage(this));
Thread.Sleep(100);
// TODO - figure out why this test fails in NUnit console runner, but not through VS Test Execution
//Assert.NotNull(subscriberChangeMessage);
//Assert.AreEqual(0, subscriberChangeMessage.SubscriberCount);
//Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
}
public void SubscribeAndUnsubscribeCauseChangeMessages()
{
var messenger = new MvxMessengerHub();
MvxSubscriberChangeMessage subscriberChangeMessage = null;
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => subscriberChangeMessage = message);
var token = messenger.Subscribe<TestMessage>(m =>
{
// stuff
});
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(1, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
subscriberChangeMessage = null;
messenger.Unsubscribe<TestMessage>(token);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(0, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
}
public void GetSubscriptionTagsIsCorrect()
{
var testTag1 = "TestTag1";
var testTag2 = "TestTag2";
var messenger = new MvxMessengerHub();
Assert.IsEmpty(messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>());
Assert.IsEmpty(messenger.GetSubscriptionTagsFor<TestMessage>());
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.IsEmpty(messenger.GetSubscriptionTagsFor<TestMessage>());
var token = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag: testTag1);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
Assert.AreEqual(testTag1, messenger.GetSubscriptionTagsFor<TestMessage>()[0]);
var token2 = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag: testTag1);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(2, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
Assert.AreEqual(testTag1, messenger.GetSubscriptionTagsFor<TestMessage>()[0]);
Assert.AreEqual(testTag1, messenger.GetSubscriptionTagsFor<TestMessage>()[1]);
var token3 = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag: testTag2);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(3, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
Assert.AreEqual(2, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag1).Count());
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag2).Count());
messenger.Unsubscribe<TestMessage>(token);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(2, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag1).Count());
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag2).Count());
messenger.Unsubscribe<TestMessage>(token2);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
Assert.AreEqual(0, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag1).Count());
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<TestMessage>().Where(x => x == testTag2).Count());
messenger.Unsubscribe<TestMessage>(token3);
Assert.AreEqual(1, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>().Count);
Assert.AreEqual(null, messenger.GetSubscriptionTagsFor<MvxSubscriberChangeMessage>()[0]);
Assert.AreEqual(0, messenger.GetSubscriptionTagsFor<TestMessage>().Count);
}
public void CountSubscriptionsForTagIsCorrect()
{
var testTag1 = "TestTag1";
var testTag2 = "TestTag2";
var notExistingTag = "NotExistingTag";
var messenger = new MvxMessengerHub();
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
var token = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag:testTag1);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
var token2 = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag:testTag1);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(2, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
var token3 = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag: testTag2);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(2, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
messenger.Unsubscribe<TestMessage>(token);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
messenger.Unsubscribe<TestMessage>(token2);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
messenger.Unsubscribe<TestMessage>(token3);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag<TestMessage>(notExistingTag));
}
public void HasSubscriptionsForTagIsCorrect()
{
var testTag = "TestTag";
var notExistingTag = "NotExistingTag";
var messenger = new MvxMessengerHub();
Assert.AreEqual(false, messenger.HasSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsFor<TestMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(notExistingTag));
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(true, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(notExistingTag));
var token = messenger.Subscribe<TestMessage>(m =>
{
// stuff
}, tag: testTag);
Assert.AreEqual(true, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag));
Assert.AreEqual(true, messenger.HasSubscriptionsForTag<TestMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(notExistingTag));
messenger.Unsubscribe<TestMessage>(token);
Assert.AreEqual(true, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<MvxSubscriberChangeMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(testTag));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(null));
Assert.AreEqual(false, messenger.HasSubscriptionsForTag<TestMessage>(notExistingTag));
}
public void CountSubscriptionsForIsCorrect()
{
var messenger = new MvxMessengerHub();
Assert.AreEqual(false, messenger.HasSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(false, messenger.HasSubscriptionsFor<TestMessage>());
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(1, messenger.CountSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(0, messenger.CountSubscriptionsFor<TestMessage>());
var token = messenger.Subscribe<TestMessage>(m =>
{
// stuff
});
Assert.AreEqual(1, messenger.CountSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(1, messenger.CountSubscriptionsFor<TestMessage>());
var token2 = messenger.Subscribe<TestMessage>(m =>
{
// stuff
});
Assert.AreEqual(1, messenger.CountSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(2, messenger.CountSubscriptionsFor<TestMessage>());
messenger.Unsubscribe<TestMessage>(token);
Assert.AreEqual(1, messenger.CountSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(1, messenger.CountSubscriptionsFor<TestMessage>());
messenger.Unsubscribe<TestMessage>(token2);
Assert.AreEqual(1, messenger.CountSubscriptionsFor<MvxSubscriberChangeMessage>());
Assert.AreEqual(0, messenger.CountSubscriptionsFor<TestMessage>());
}
protected void Subscribe <T>() where T : MvxMessage
{
var token = _messengerHub.Subscribe <T>(OnMessageReceived);
_subscriptionTokens.Add(token);
}
public void CountSubscriptionsForTagIsCorrect()
{
var testTag1 = "TestTag1";
var testTag2 = "TestTag2";
var notExistingTag = "NotExistingTag";
var messenger = new MvxMessengerHub();
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
var changeToken = messenger.Subscribe <MvxSubscriberChangeMessage>(message => { });
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
var token = messenger.Subscribe <TestMessage>(m =>
{
// stuff
}, tag: testTag1);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
var token2 = messenger.Subscribe <TestMessage>(m =>
{
// stuff
}, tag: testTag1);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(2, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
var token3 = messenger.Subscribe <TestMessage>(m =>
{
// stuff
}, tag: testTag2);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(2, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
messenger.Unsubscribe <TestMessage>(token);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
messenger.Unsubscribe <TestMessage>(token2);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
messenger.Unsubscribe <TestMessage>(token3);
Assert.AreEqual(1, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(null));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <MvxSubscriberChangeMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag1));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(testTag2));
Assert.AreEqual(0, messenger.CountSubscriptionsForTag <TestMessage>(notExistingTag));
}
public void NullSubscribeCausesException()
{
var messenger = new MvxMessengerHub();
Assert.Throws<ArgumentNullException>(() => {
messenger.Subscribe<TestMessage>(null);
});
}
public void PurgeCausesChangeMessage()
{
var messenger = new MvxMessengerHub();
MvxSubscriberChangeMessage subscriberChangeMessage = null;
var changeToken = messenger.Subscribe<MvxSubscriberChangeMessage>(message => subscriberChangeMessage = message);
CreateShortLivedSubscription(messenger);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(1, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
subscriberChangeMessage = null;
System.Threading.Thread.Sleep(100);
GC.Collect();
GC.WaitForFullGCComplete();
messenger.Publish(new TestMessage(this));
System.Threading.Thread.Sleep(100);
Assert.NotNull(subscriberChangeMessage);
Assert.AreEqual(0, subscriberChangeMessage.SubscriberCount);
Assert.AreEqual(typeof(TestMessage), subscriberChangeMessage.MessageType);
}
public void NullSubscribeCausesException()
{
var messenger = new MvxMessengerHub();
messenger.Subscribe<TestMessage>(null);
}
private void CreateShortLivedSubscription(MvxMessengerHub messenger)
{
// put a large byte array in place - this encourages the garbage collector to collect
var b = new byte[100000];
var action = new Action<TestMessage>((message) => { b[0] = 0; });
messenger.Subscribe<TestMessage>(action, MvxReference.Weak);
action = null;
}
public void UnknownUnsubscribeDoesNotCauseException()
{
var messenger = new MvxMessengerHub();
messenger.Unsubscribe<TestMessage>(new MvxSubscriptionToken(Guid.NewGuid(), () => { }, new object()));
messenger.Subscribe<TestMessage>(m =>
{
// stuff
});
messenger.Unsubscribe<TestMessage>(new MvxSubscriptionToken(Guid.NewGuid(), () => { }, new object()));
messenger.Unsubscribe<TestMessage>(new MvxSubscriptionToken(Guid.Empty, () => { }, new object()));
}
public void DisposeTokenPreventsMessagesBeingReceived()
{
var messenger = new MvxMessengerHub();
Action<TestMessage> action = _ => Assert.That(false, "This event should not fire!");
var id = messenger.Subscribe(action);
id.Dispose();
messenger.Publish(new TestMessage(this));
}
public void NullSubscribeCausesException()
{
var messenger = new MvxMessengerHub();
messenger.Subscribe <TestMessage>(null);
}