public async Task Then_The_Handler_Only_Receives_The_Message_Once()
{
// Arrange
var messageLock = new MessageLockStore();
var handler = new InspectableHandler <SimpleMessage>();
var services = GivenJustSaying()
.AddSingleton <IMessageLockAsync>(messageLock)
.ConfigureJustSaying((builder) =>
builder.WithLoopbackTopic <SimpleMessage>(UniqueName,
c => c.WithMiddlewareConfiguration(m =>
m.UseExactlyOnce <SimpleMessage>("lock-simple-message")
.UseDefaults <SimpleMessage>(handler.GetType()))))
.AddJustSayingHandlers(new[] { handler });
var message = new SimpleMessage();
string json = "";
await WhenAsync(
services,
async (publisher, listener, serviceProvider, cancellationToken) =>
{
await listener.StartAsync(cancellationToken);
await publisher.StartAsync(cancellationToken);
// Act
await publisher.PublishAsync(message, cancellationToken);
await publisher.PublishAsync(message, cancellationToken);
dynamic middlewares = ((dynamic)listener.Interrogate().Data).Middleware;
json = JsonConvert.SerializeObject(middlewares, Formatting.Indented)
.Replace(UniqueName, "TestQueueName");
await Patiently.AssertThatAsync(() =>
{
handler.ReceivedMessages.Where(m => m.Id.ToString() == message.UniqueKey())
.ShouldHaveSingleItem();
});
});
json.ShouldMatchApproved(c => c.SubFolder("Approvals"));
}
public async Task Then_Both_Handlers_Receive_The_Message()
{
var messageLock = new MessageLockStore();
var handler1 = new InspectableHandler <SimpleMessage>();
var handler2 = new InspectableHandler <SimpleMessage>();
var services = GivenJustSaying()
.AddSingleton <IMessageLockAsync>(messageLock)
.ConfigureJustSaying((builder) =>
builder.WithLoopbackTopic <SimpleMessage>(UniqueName,
t => t.WithMiddlewareConfiguration(m =>
{
m.UseExactlyOnce <SimpleMessage>("some-key");
m.UseDefaults <SimpleMessage>(handler1.GetType());
})))
.AddJustSayingHandlers(new[] { handler1, handler2 });
await WhenAsync(
services,
async (publisher, listener, serviceProvider, cancellationToken) =>
{
await listener.StartAsync(cancellationToken);
await publisher.StartAsync(cancellationToken);
var message = new SimpleMessage();
// Act
await publisher.PublishAsync(message, cancellationToken);
// Assert
await Patiently.AssertThatAsync(OutputHelper,
() =>
{
handler1.ReceivedMessages.ShouldHaveSingleItem().Id.ShouldBe(message.Id);
handler2.ReceivedMessages.ShouldHaveSingleItem().Id.ShouldBe(message.Id);
});
});
}