public void unfinished_messages_will_be_dead_lettered_even_if_they_have_been_started_up_in_the_past()
{
var queueName = "Test_Destination_TTL_500";
var deadQueueName = MessagingBaseConfiguration.DeadLetterPrefix + queueName;
messaging.CreateDestination <IMsg>(queueName, Expires.AfterMilliseconds(500)); // Very short TTL. Real-world is more likely to be hours or days.
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(queueName);
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(deadQueueName);
messaging.SendMessage(testMessage);
var message = messaging.TryStartMessage <IMsg>(queueName);
message.Cancel(); // equivalent of the process crashing etc.
Thread.Sleep(1000); // 'huge' delay
message = messaging.TryStartMessage <IMsg>(queueName);
Assert.That(message, Is.Null, "Message should NOT be in the original queue, but it was");
message = messaging.TryStartMessage <IMsg>(deadQueueName);
Assert.That(message, Is.Not.Null, "Message should be in the DLQ, but I didn't find it");
message.Finish();
}
public void if_a_time_restriction_has_been_set__an_expired_message_will_be_written_to_a_dead_letter_queue()
{
var queueName = "Test_Destination_TTL_500";
var deadQueueName = MessagingBaseConfiguration.DeadLetterPrefix + queueName;
messaging.CreateDestination <IMsg>(queueName, Expires.AfterMilliseconds(500)); // Very short TTL. Real-world is more likely to be hours or days.
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(queueName);
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(deadQueueName);
messaging.SendMessage(testMessage);
Thread.Sleep(1000); // 'huge' delay
var message = messaging.TryStartMessage <IMsg>(queueName);
Assert.That(message, Is.Null, "Message should NOT be in the original queue, but it was");
message = messaging.TryStartMessage <IMsg>(deadQueueName);
Assert.That(message, Is.Not.Null, "Message should be in the DLQ, but I didn't find it");
message.Finish(); // Should be able to complete the message to take it out of the DLQ
message = messaging.TryStartMessage <IMsg>(deadQueueName);
Assert.That(message, Is.Null, "Message should have been removed from DLQ, but it stayed");
}
public void a_queue_with_a_time_restriction_set_can_receive_messages_within_its_TTL()
{
messaging.CreateDestination <IMsg>("Test_Destination_TTL_500", Expires.AfterMilliseconds(500)); // Very short TTL. Real-world is more likely to be hours or days.
messaging.SendMessage(testMessage);
// Hopefully, no delay here
var message = messaging.TryStartMessage <IMsg>("Test_Destination_TTL_500");
Assert.That(message, Is.Not.Null);
message.Finish();
}
public void a_list_of_dead_letter_queues_can_be_read_with_their_message_counts()
{
var queueName = "Test_Destination_TTL_500";
var deadQueueName = MessagingBaseConfiguration.DeadLetterPrefix + queueName;
messaging.CreateDestination <IMsg>(queueName, Expires.AfterMilliseconds(500)); // Very short TTL. Real-world is more likely to be hours or days.
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(queueName);
MessagingBaseConfiguration.LastConfiguration.Get <IMessageRouter>().Purge(deadQueueName);
messaging.SendMessage(testMessage);
Thread.Sleep(2500); // enough delay to expire the message
var message = messaging.TryStartMessage <IMsg>(queueName);
Assert.That(message, Is.Null, "Message should NOT be in the original queue, but it was");
Thread.Sleep(2500); // enough delay to read the meta-data
var DLQs = query.GetDeadLetterStatus();
Assert.That(DLQs.Length, Is.GreaterThan(0), "Expected to find a dead-letter-queue, but there are none");
Assert.That(DLQs.Single(q => q.name.Contains(queueName)).messages, Is.GreaterThan(0), "Expected to find a queue with the message I sent, but didn't find it");
}