public void RunFor10Seconds_SendFailsForAllItems_DispatcherStopsOnlyIfTheQueueIsEmptyAndAllRetryAttempsHaveFailed()
{
// Arrange
int runtimeInMilliseconds = 10 * 1000;
int itemsReturnedFromSystemInformationProvider = 0;
int attemptsToSend = 0;
// prepare system information provider
var provider = new Mock<ISystemInformationProvider>();
provider.Setup(p => p.GetSystemInfo()).Returns(() =>
{
itemsReturnedFromSystemInformationProvider++;
return new SystemInformation { MachineName = Environment.MachineName, Timestamp = DateTime.UtcNow };
});
// prepare sender
var sender = new Mock<ISystemInformationSender>();
sender.Setup(s => s.Send(It.IsAny<SystemInformation>())).Callback(() => { attemptsToSend++; }).Throws(new SendSystemInformationFailedException("Send failed.", null));
IMessageQueue<SystemInformation> workQueue = new SystemInformationMessageQueue();
IMessageQueue<SystemInformation> errorQueue = new SystemInformationMessageQueue();
IMessageQueueProvider<SystemInformation> messageQueueProvider = new SystemInformationMessageQueueProvider(workQueue, errorQueue);
IMessageQueueFeeder messageQueueFeeder = new SystemInformationMessageQueueFeeder(provider.Object, workQueue);
IMessageQueueWorker messageQueueWorker = new SystemInformationMessageQueueWorker(sender.Object, workQueue, errorQueue);
var agentCoordinationService = new Mock<IAgentCoordinationService>();
var agentCoordinationServiceFactory = new Mock<IAgentCoordinationServiceFactory>();
agentCoordinationServiceFactory.Setup(f => f.GetAgentCoordinationService(It.IsAny<Action>(), It.IsAny<Action>())).Returns(
agentCoordinationService.Object);
var messageQueueFeederFactory = new Mock<IMessageQueueFeederFactory>();
messageQueueFeederFactory.Setup(f => f.GetMessageQueueFeeder()).Returns(messageQueueFeeder);
var messageQueueWorkerFactory = new Mock<IMessageQueueWorkerFactory>();
messageQueueWorkerFactory.Setup(f => f.GetMessageQueueWorker()).Returns(messageQueueWorker);
IMessageQueuePersistence<SystemInformation> messageQueuePersistence =
new JSONSystemInformationMessageQueuePersistence(this.jsonMessageQueuePersistenceConfigurationProvider, this.encodingProvider);
var systemInformationDispatchingService = new SystemInformationDispatchingService(
agentCoordinationServiceFactory.Object,
messageQueueFeederFactory.Object,
messageQueueWorkerFactory.Object,
messageQueueProvider,
messageQueuePersistence);
// Act
var stopwatch = new Stopwatch();
stopwatch.Start();
var dispatcher = new Task(systemInformationDispatchingService.Start);
dispatcher.Start();
Thread.Sleep(runtimeInMilliseconds);
systemInformationDispatchingService.Stop();
Task.WaitAll(new[] { dispatcher });
stopwatch.Stop();
// Assert
int queueSize = workQueue.GetSize();
Console.WriteLine(
"After a runtime of {0} milliseconds the dispatcher has been stopped with {1} items in queue. It took {2} milliseconds until the queue worker stopped sending out all queue items (Attempts To Send: {3}).",
runtimeInMilliseconds,
itemsReturnedFromSystemInformationProvider,
stopwatch.ElapsedMilliseconds,
attemptsToSend);
Assert.AreEqual(0, queueSize);
}
public void Stop_MessageQueueWorker_StopIsCalled()
{
// Arrange
// Arrange
var agentCoordinationService = new Mock<IAgentCoordinationService>();
var messageQueueFeeder = new Mock<IMessageQueueFeeder>();
var messageQueueWorker = new Mock<IMessageQueueWorker>();
var agentCoordinationServiceFactory = new Mock<IAgentCoordinationServiceFactory>();
agentCoordinationServiceFactory.Setup(f => f.GetAgentCoordinationService(It.IsAny<Action>(), It.IsAny<Action>())).Returns(agentCoordinationService.Object);
var messageQueueFeederFactory = new Mock<IMessageQueueFeederFactory>();
messageQueueFeederFactory.Setup(f => f.GetMessageQueueFeeder()).Returns(messageQueueFeeder.Object);
var messageQueueWorkerFactory = new Mock<IMessageQueueWorkerFactory>();
messageQueueWorkerFactory.Setup(f => f.GetMessageQueueWorker()).Returns(messageQueueWorker.Object);
var workQueue = new Mock<IMessageQueue<SystemInformation>>();
var errorQueue = new Mock<IMessageQueue<SystemInformation>>();
var messageQueueProvider = new Mock<IMessageQueueProvider<SystemInformation>>();
messageQueueProvider.Setup(m => m.WorkQueue).Returns(workQueue.Object);
messageQueueProvider.Setup(m => m.ErrorQueue).Returns(errorQueue.Object);
var messageQueuePersistence = new Mock<IMessageQueuePersistence<SystemInformation>>();
var systemInformationDispatchingService = new SystemInformationDispatchingService(
agentCoordinationServiceFactory.Object,
messageQueueFeederFactory.Object,
messageQueueWorkerFactory.Object,
messageQueueProvider.Object,
messageQueuePersistence.Object);
// Act
systemInformationDispatchingService.Stop();
// Assert
messageQueueWorker.Verify(f => f.Stop(), Times.Once());
}