public void Test_MessageSourceCreation_Success()
{
var queueMock = _cloudQueueClientFixture.GetQueueMock();
var messages = new List <CloudQueueMessage> {
new CloudQueueMessage("Test1"),
new CloudQueueMessage("Test2"),
new CloudQueueMessage("Test3")
};
queueMock.Setup(x => x.GetMessagesAsync(
It.IsAny <int>(),
It.IsAny <TimeSpan?>(),
It.IsAny <QueueRequestOptions>(),
It.IsAny <OperationContext>(),
It.IsAny <CancellationToken>()
)).Returns(Task.FromResult(messages as IEnumerable <CloudQueueMessage>));
queueMock.Setup(x => x.GetMessages(
It.IsAny <int>(),
It.IsAny <TimeSpan?>(),
It.IsAny <QueueRequestOptions>(),
It.IsAny <OperationContext>()
)).Returns((int numMessagesToRetrieve, TimeSpan? visibilityTimeout, QueueRequestOptions options, OperationContext context) => messages.Take(numMessagesToRetrieve));
queueMock.Setup(x => x.DeleteMessage(
It.IsAny <CloudQueueMessage>(),
It.IsAny <QueueRequestOptions>(),
It.IsAny <OperationContext>()
)).Callback((CloudQueueMessage message, QueueRequestOptions options, OperationContext context) => messages.Remove(message));
queueMock.CallBase = false;
var messageDeserializers = new List <IMessageDeserializer <ITestServiceMessage> >();
var deserializerMock = new Mock <IMessageDeserializer <ITestServiceMessage> >();
var irrelevantTestCommand = new TestCommand1();
deserializerMock.Setup(x => x.Deserialize(It.IsAny <Stream>())).Returns(irrelevantTestCommand);
messageDeserializers.Add(deserializerMock.Object);
IDictionary <Type, QueueRequestOptions> queueRequestOptions = null;
var maxMessagesToRetrieve = 2;
var pollingIntervalTicks = 1000;
var messageSource = new MessageSource <ITestServiceMessage>(
queueMock.Object,
messageDeserializers,
queueRequestOptions,
maxMessagesToRetrieve: maxMessagesToRetrieve,
pollingInterval: TimeSpan.FromTicks(pollingIntervalTicks));
var messageActionFnMock = new Mock <Action <ITestServiceMessage> >();
var rxTestScheduler = new TestScheduler();
var numPolls = 2;
(long created, long subscribed, long disposed) = (0, pollingIntervalTicks / 2, pollingIntervalTicks *numPolls);
var observer = rxTestScheduler.Start(
() => messageSource.GetMessagesObservable(rxTestScheduler),
created: created,
subscribed: subscribed,
disposed: disposed
);
var expectedMessages = Enumerable.Range(1, numPolls)
.Where(pollIndex => subscribed + pollIndex * pollingIntervalTicks <= disposed)
.SelectMany(pollIndex => Enumerable.Range(1, maxMessagesToRetrieve)
.Select(messageIndex => new { PollIndex = pollIndex, MessageIndex = messageIndex }))
.Select(tuple => new Recorded <Notification <ITestServiceMessage> >(
subscribed + tuple.PollIndex * pollingIntervalTicks,
Notification.CreateOnNext <ITestServiceMessage>(irrelevantTestCommand)))
.ToList();
observer.Messages.AssertEqual(expectedMessages);
}