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");
}
}
//--- Constructors ---
public Listener(SqsPollingClient container)
{
this._container = container;
}
//--- Constructors ---
public Listener(SqsPollingClient container)
{
this._container = container;
}
public void polling_client_pulls_from_sqs_and_calls_callback_but_does_not_automatically_deletes_messages()
{
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 queueName = new SqsQueueName("foo");
pollster.Listen(new SqsPollingClientSettings(
queueName: queueName,
callback: posted.AddRange,
longPollInterval: 10.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: {0} != {1}", 3, mockSqsClient.ReceiveCalled)
);
Assert.AreEqual(15, mockSqsClient.Delivered.Count, "delivered has the wrong number of messages");
Assert.AreNotEqual(
mockSqsClient.Delivered.Count,
mockSqsClient.Deleted.Count,
"delivered and deleted don't match");
Assert.AreEqual(
mockSqsClient.Delivered.Count,
posted.Count,
"delivered and posted don't match");
}
public void polling_client_retries_if_sqs_client_throws_on_receive()
{
// Arrange
var exceptionSqsClient = new ExceptionalSqsClient();
var pollster = new SqsPollingClient(exceptionSqsClient);
// Act
var messages = 0;
pollster.Listen(new SqsPollingClientSettings(
queueName: new SqsQueueName("test"),
callback: msgs => messages++,
longPollInterval: (0.5).Seconds(),
maxNumberOfMessages: SqsUtils.MAX_NUMBER_OF_MESSAGES_TO_FETCH,
waitTimeOnError: (0.5).Seconds()
));
// Assert
Assert.IsTrue(Wait.For(() => exceptionSqsClient.Calls > 3, 10.Seconds()), "never got past the first receive call, calls = {0}", exceptionSqsClient.Calls);
Assert.IsTrue(Wait.For(() => exceptionSqsClient.Threw, 1.Seconds()), "exception was never thrown in receive call");
Assert.AreEqual(0, messages, "somehow received messages");
pollster.Dispose();
}
