Using SendLocal in integration tests

1

I would like to create tests for our NServiceBus configuration by creating an endpoint and send messages to it (to be able to test different scenarios).

To do that I’ve created a handler and then use ep.SendLocal to send a message to it.

[Fact]
public async Task SomeTest()
{
            // Our own builder that wraps the NServiceBus configuration
            var sut = new EndpointBuilder("Myname");
            sut.RegisterServices(x =>
            {
                x.RegisterType<MyService>().AsSelf().SingleInstance();
                x.RegisterType<MyMessageHandler>().AsImplementedInterfaces();
            });

            // Will call Endpoint.Start(_endpointConfiguration) and return the ep
            var ep = await sut.BuildEndpoint(ConnectionString);

            // Creates a new static TaskCompletionSource
            MyMessageHandler.Reset();

            await ep.SendLocal(new MyMessage());

            // waits on the tcs which will be completed when the handler is invoked
            await MyMessageHandler.Wait(TimeSpan.FromSeconds(5));

            await ep.Stop();
}

The handler is never invoked, do NSB wait for something before it actually sends and processes the message?

2

Hi

What do ep and endPoint variables represent? An endpoint needs to be started before it processes the messages. Does the BuildEndpoint method call Endpoint.Start or just Endpoint.Create?

Szymon

3

Sorry, typo in the code. It should just be ep. It represents a IEndpointInstance (from Endpoint.Start(endpointConfiguration);).

4

In that case it should work correctly. Can you also share the code in the BuildEndpoint method?