我有一个命令处理程序,它调用域对象上的操作,然后在执行操作时触发事件。我想测试事件处理程序在发送相应命令时接收事件(参见下文,为简洁起见省略了一些代码)。即使事件消息在总线上发布(在这种情况下为环回总线),也永远不会调用事件处理程序(MyEventConsumer.Consume)。有什么想法吗?
//Test
[TestFixture]
public class TestSendCommandReceiveEvent
{
[Given]
public void installation_of_infrastructure_objects()
{
container.Register(Component.For<MyEventConsumer>().UsingFactoryMethod(() => new MyEventConsumer(_received)));
container.Register(
Component.For<IServiceBus>()
.UsingFactoryMethod(() => ServiceBusFactory.New(x => { x.ReceiveFrom("loopback://localhost/mt_client"); x.Subscribe(conf => conf.LoadFrom(container)); })));
}
[When]
public void sending_a_command()
{
var LocalBus = container.Resolve<IServiceBus>();
LocalBus.Publish(new DoSomething(_aggregateId));
}
[Then]
public void corresponding_event_should_be_received_by_consumer()
{
_received.WaitOne(5000).ShouldBeTrue();
}
}
public class MyEventConsumer : Consumes<SomethingDone>.All
{
private readonly ManualResetEvent _received;
public MyEventConsumer(ManualResetEvent received)
{
_received = received;
}
public void Consume(SomethingDone message)
{
_received.Set();
}
}
//Command handler
public class DoSomethingCommandHandler : Consumes<DoSomething>.All where T:class
{
public void Consume(DoSomething message)
{
var ar = Repository.GetById<SomeAR>(message.ArId);
ar.DoSomething();
Repository.Save(ar, Guid.NewGuid(), null);
}
}
//Domain object
public class SomeDomainObject : AggregateBase
{
public void DoSomething()
{
RaiseEvent(new SomethingDone(Id, 1));
}
}
答案 0 :(得分:5)
这传递给我:
// Copyright 2012 Henrik Feldt
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
using System;
using System.Threading;
using Castle.MicroKernel.Registration;
using Castle.Windsor;
using Magnum.Extensions;
using Magnum.TestFramework;
using MassTransit;
using NUnit.Framework;
namespace ConsoleApplication11
{
[TestFixture]
public class TestSendCommandReceiveEvent
{
ManualResetEventSlim _received = new ManualResetEventSlim(false);
IWindsorContainer _container;
[Given]
public void installation_of_infrastructure_objects()
{
_container = new WindsorContainer();
_container.Register(
Component.For<IServiceBus>()
.UsingFactoryMethod(() => ServiceBusFactory.New(x =>
{
x.ReceiveFrom("loopback://localhost/mt_client");
x.Subscribe(conf =>
{
conf.Consumer(() => new MyEventConsumer(_received));
conf.Consumer(() => new MyCmdConsumer());
});
})));
when();
}
public void when()
{
var localBus = _container.Resolve<IServiceBus>();
// wait for startup
localBus.Endpoint.InboundTransport.Receive(c1 => c2 => { }, 1.Milliseconds());
localBus.Publish(new DoSomething());
}
[Then]
public void corresponding_event_should_be_received_by_consumer()
{
_received.Wait(5000).ShouldBeTrue();
}
}
[Serializable]
public class DoSomething
{
}
[Serializable]
public class SomethingDone
{
}
public class MyEventConsumer : Consumes<SomethingDone>.All
{
readonly ManualResetEventSlim _received;
public MyEventConsumer(ManualResetEventSlim received)
{
_received = received;
}
public void Consume(SomethingDone message)
{
_received.Set();
}
}
public class MyCmdConsumer : Consumes<DoSomething>.Context
{
public void Consume(IConsumeContext<DoSomething> ctx)
{
Console.WriteLine("consumed cmd");
ctx.Bus.Publish(new SomethingDone());
}
}
}
答案 1 :(得分:0)
根据我的经验,在创建总线实例之后,有一段很短的时间,在此期间任何已发布的消息都将丢失。必须进行某种异步初始化。
尝试在container.Resolve<IServiceBus>()
和LocalBus.Publish(new DoSomething(_aggregateId))
之间添加延迟。
Thread.Sleep
在我的情况下不起作用,但Console.ReadLine()
出乎意料地做了!