public void OnFlow_CancelsPreviousTask_WhenCalledMultipleTimes()
{
ListenerLink link = Construct.Uninitialized <ListenerLink>();
FlowContext flowContext = Construct.ForPrivate <FlowContext>(link, 1, new Fields());
IDeliveryQueue queue = Substitute.For <IDeliveryQueue>();
var endpoint = new OutgoingLinkEndpoint(queue);
endpoint.OnFlow(flowContext);
Should.NotThrow(() => endpoint.OnFlow(flowContext));
}
public void Process_DoesNotProcessDeliveryIfItDoesntExist()
{
var message = new Message();
message.InitializePrivateProperty("Delivery");
ListenerLink link = Construct.Uninitialized <ListenerLink>();
MessageContext messageContext = Construct.ForPrivate <MessageContext>(link, message);
var queue = new DeliveryQueue();
Should.NotThrow(() => queue.Process(messageContext));
}
public void OnMessage_PostsMessageToEntityAndCompletesMessageContext()
{
var message = new Message();
message.InitializePrivateProperty("Delivery");
ListenerLink link = Construct.Uninitialized <ListenerLink>();
MessageContext messageContext = Construct.ForPrivate <MessageContext>(link, message);
IEntity entity = Substitute.For <IEntity>();
var endpoint = new IncomingLinkEndpoint(entity);
endpoint.OnMessage(messageContext);
endpoint.ShouldSatisfyAllConditions(
() => entity.Received(1).Post(Arg.Is <Message>(m => !ReferenceEquals(m, message))),
() => messageContext.State.ShouldBe(ContextState.Completed)
);
}
public void Process_ProcessesDelivery()
{
var message = new Message();
message.InitializePrivateProperty("Delivery");
ListenerLink link = Construct.Uninitialized <ListenerLink>();
MessageContext messageContext = Construct.ForPrivate <MessageContext>(link, message);
var delivery = new Delivery(message);
var queue = new DeliveryQueue();
queue.Enqueue(delivery);
queue.Dequeue(CancellationToken.None);
queue.Process(messageContext);
delivery.Processed.ShouldNotBeNull();
}
public void OnLinkClosed_CancelsSendingMessages()
{
var backingQueue = new BlockingCollection <Message>(new ConcurrentQueue <Message>());
ListenerLink link = Construct.Uninitialized <ListenerLink>();
FlowContext flowContext = Construct.ForPrivate <FlowContext>(link, 1, new Fields());
IDeliveryQueue queue = Substitute.For <IDeliveryQueue>();
queue.Dequeue(Arg.Any <CancellationToken>())
.Returns(ci => backingQueue.Take(ci.Arg <CancellationToken>()));
var endpoint = new OutgoingLinkEndpoint(queue);
endpoint.OnFlow(flowContext);
endpoint.OnLinkClosed(null, null);
backingQueue.Add(new Message());
Thread.Sleep(10);
backingQueue.Count.ShouldBe(1);
}
public void OnDisposition_CallsIDeliveryQueueProcess()
{
var message = new Message();
message.InitializePrivateProperty("Delivery");
IDeliveryQueue queue = Substitute.For <IDeliveryQueue>();
DispositionContext dispositionContext = Construct.ForPrivate <DispositionContext>(
Construct.Uninitialized <ListenerLink>(),
message,
new Accepted(),
true
);
var endpoint = new OutgoingLinkEndpoint(queue);
endpoint.OnDisposition(dispositionContext);
queue.Received(1).Process(dispositionContext);
dispositionContext.State.ShouldBe(ContextState.Completed);
}
public async Task OnFlow_StartsSendingMessagesAsynchronously()
{
var backingQueue = new BlockingCollection <Message>(new ConcurrentQueue <Message>());
ListenerLink link = Construct.Uninitialized <ListenerLink>();
FlowContext flowContext = Construct.ForPrivate <FlowContext>(link, 1, new Fields());
IDeliveryQueue queue = Substitute.For <IDeliveryQueue>();
queue.Dequeue(Arg.Any <CancellationToken>())
.Returns(ci => backingQueue.Take(ci.Arg <CancellationToken>()));
var endpoint = new OutgoingLinkEndpoint(queue);
endpoint.OnFlow(flowContext);
backingQueue.Add(new Message());
await Task.Delay(500);
queue.Received(1).Dequeue(Arg.Any <CancellationToken>());
backingQueue.ShouldBeEmpty();
}
public void OnMessage_DoesNotCompleteMessageContext_WhenPostingFails()
{
var message = new Message();
message.InitializePrivateProperty("Delivery");
ListenerLink link = Construct.Uninitialized <ListenerLink>();
MessageContext messageContext = Construct.ForPrivate <MessageContext>(link, message);
IEntity entity = Substitute.For <IEntity>();
entity.When(instance => instance.Post(Arg.Any <Message>()))
.Do(_ => throw new NotSupportedException());
var endpoint = new IncomingLinkEndpoint(entity);
Action action = () => endpoint.OnMessage(messageContext);
endpoint.ShouldSatisfyAllConditions(
() => action.ShouldThrow <NotSupportedException>(),
() => messageContext.State.ShouldBe(ContextState.Active)
);
}
