public void polling_client_pulls_from_sqs_and_calls_callback()
{
var mockSqsClient = new MockSqsClient();
mockSqsClient.FillQueue(15);
var pollster = new SqsPollingClient(mockSqsClient);
Assert.AreEqual(15, mockSqsClient.Queued.Count, "queue was accessed prematurely");
var posted = new List<SqsMessage>();
var fooQueue = new SqsQueueName("foo");
pollster.Listen(new SqsPollingClientSettings(
queueName: fooQueue,
callback: messages => {
posted.AddRange(messages);
foreach(var msg in messages) {
mockSqsClient.DeleteMessage(fooQueue, msg.MessageReceipt);
}
},
longPollInterval: 0.Seconds(),
maxNumberOfMessages: SqsUtils.MAX_NUMBER_OF_MESSAGES_TO_FETCH,
waitTimeOnError: 1.Seconds()));
Assert.IsTrue(Wait.For(() => mockSqsClient.Queued.Count == 0, 10.Seconds()), "queue did not get depleted in time");
Assert.IsTrue(
Wait.For(() => mockSqsClient.ReceiveCalled > 0, 5.Seconds()),
string.Format("receive called the wrong number of times: Expected {0} != {1}", 3, mockSqsClient.ReceiveCalled)
);
Assert.AreEqual(15, mockSqsClient.Delivered.Count, "delivered has the wrong number of messages");
// Compare delivered and deleted
Assert.AreEqual(mockSqsClient.Delivered.Count(), mockSqsClient.Deleted.Count(), "The count of delivered messages and deleted messages does not match and it must");
for(var i = 0; i < mockSqsClient.Delivered.Count(); i++) {
Assert.AreEqual(
mockSqsClient.Delivered[i].MessageReceipt,
mockSqsClient.Deleted[i],
"delivered message and deleted message don't match on index " + i);
}
Assert.AreEqual(mockSqsClient.Delivered.Count(), posted.Count(), "The number of delivered messages and posted messages does not match and it should");
for(var i = 0; i < mockSqsClient.Delivered.Count(); i++) {
Assert.AreEqual(
mockSqsClient.Delivered[i],
posted[i],
"delivered and posted don't match");
}
}
