public void Given_The_Message_Cannot_Be_Processed_When_I_Set_A_DeadLetter_Then_The_Message_Is_Only_Handled_The_Correct_Amount_Of_Times()
{
//arrange
const int maxAttempts = 5;
var message1 = $"Hello, world {Guid.NewGuid()}";
_messageHandler.SetResult(false);
//act
_sut
.WithProject(_projectId)
.WithTopic(_topicId)
.CreateSubscription(_subscriptionId, 60)
.WithDeadLetter(_deadLetterTopicId, maxAttempts)
.StartConsuming(_messageHandler, true);
PublishMessage(message1);
Thread.Sleep(20000); // allow time for processing the messages off the queue
//assert
Assert.IsNotNull(_messageHandler.MessagesHandled);
Assert.AreEqual(0, _messageHandler.MessagesHandled.Count);
Assert.IsTrue(_messageHandler.MessagesNotHandled.Count == maxAttempts || _messageHandler.MessagesNotHandled.Count == maxAttempts + 1);
Assert.IsTrue(_messageHandler.MessagesNotHandled.Contains(message1));
}
public void Given_The_Same_DeadLetter_For_Two_Subscriptions_When_A_Message_Fails_Then_The_Message__Put_On_The_One_Deadletter_Topic()
{
//arrange
const int maxAttempts = 5;
var message1 = $"Hello, world {Guid.NewGuid()}";
var message2 = $"Hello, world {Guid.NewGuid()}";
_messageHandler1.SetResult(false);
_messageHandler2.SetResult(false);
//act
_sut1
.WithProject(_projectId)
.WithTopic(_topic1Id)
.CreateSubscription(_subscription1Id, 60)
.WithDeadLetter(_deadLetterTopicId, maxAttempts)
.StartConsuming(_messageHandler1, true);
_sut2
.WithProject(_projectId)
.WithTopic(_topic2Id)
.CreateSubscription(_subscription2Id, 60)
.WithDeadLetter(_deadLetterTopicId, maxAttempts)
.StartConsuming(_messageHandler2, true);
PublishMessage(message1, _topic1Id);
PublishMessage(message2, _topic2Id);
Thread.Sleep(20000); // allow time for processing the messages off the queue
var subscription1Message = _messageHelper.GetMessage(_projectId, _subscription1Id);
var subscription2Message = _messageHelper.GetMessage(_projectId, _subscription2Id);
Thread.Sleep(20000); // allow time for processing the messages onto the deadletter queue
var deadletterMessage1 = _messageHelper.GetMessage(_projectId, _deadLetterSubscriptionId);
var deadletterMessage2 = _messageHelper.GetMessage(_projectId, _deadLetterSubscriptionId);
//assert
Assert.IsNull(subscription1Message);
Assert.IsNull(subscription2Message);
Assert.IsNotNull(deadletterMessage1);
Assert.IsNotNull(deadletterMessage2);
Assert.IsTrue(deadletterMessage1 == message1 || deadletterMessage2 == message1);
Assert.IsTrue(deadletterMessage1 == message2 || deadletterMessage2 == message2);
}
