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spring - 如何在Junit测试中等待spring jms监听线程完成执行

问题描述

我有一个使用 spring-JMS 的 spring boot 应用程序。有没有办法告诉测试方法等待 jms lister util 它完成执行而不在将要测试的实际代码中使用锁存器？

这是 JMS 侦听器代码：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;

import javax.jms.Message;
import javax.jms.QueueSession;


@Component
public class MyListener {


    @Autowired
    MyProcessor myProcessor;


    @JmsListener(destination = "myQueue", concurrency = "1-4")
    private void onMessage(Message message, QueueSession session) {
        myProcessor.processMessage(message, session);
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.jms.Message;
import javax.jms.QueueSession;

@Component
public class MyProcessor {


    public void processMessage(Message msg, QueueSession session) {
     //Here I have some code. 

    }

}

import org.apache.activemq.command.ActiveMQTextMessage;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.test.context.junit.jupiter.SpringExtension;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.QueueSession;

import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

@SpringBootTest
@ExtendWith(SpringExtension.class)
@ActiveProfiles("test")
public class IntegrationTest {



    @Autowired
    private JmsTemplate JmsTemplate;

    @Test
    public void myTest() throws JMSException {
        Message message = new ActiveMQTextMessage();

        jmsTemplate.send("myQueue", session -> message);

        /*
          Here I have some testing code. How can I tell the application 
          to not execute this testing code until all JMS lister threads 
          finish executing. 
        */


    }
}

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.jms.annotation.EnableJms;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.util.SocketUtils;

import javax.jms.ConnectionFactory;

@EnableJms
@Configuration
@Profile("test")
public class JmsTestConfig {

    public static final String BROKER_URL =
            "tcp://localhost:" + SocketUtils.findAvailableTcpPort();


    @Bean
    public BrokerService brokerService() throws Exception {
        BrokerService brokerService = new BrokerService();
        brokerService.setPersistent(false);
        brokerService.addConnector(BROKER_URL);

        return brokerService;
    }

    @Bean
    public ConnectionFactory connectionFactory() {
        return new ActiveMQConnectionFactory(BROKER_URL);
    }

    @Bean
    public JmsTemplate jmsTemplate(ConnectionFactory connectionFactory) {
        JmsTemplate jmsTemplate = new JmsTemplate(connectionFactory);
        return jmsTemplate;
    }

}

注意：是否适用于在不向实现代码（MyListener 和 MyProcessor）添加测试目的代码的情况下解决此问题。

标签： springmultithreadingspring-bootspring-jmsjunit5

解决方案

代理监听器并添加一个倒计时闩锁的建议；这是我最近为 KafkaListener 做的一个......

@Test
public void test() throws Exception {
    this.template.send("so50214261", "foo");
    assertThat(TestConfig.latch.await(10, TimeUnit.SECONDS)).isTrue();
    assertThat(TestConfig.received.get()).isEqualTo("foo");
}

@Configuration
public static class TestConfig {

    private static final AtomicReference<String> received = new AtomicReference<>();

    private static final CountDownLatch latch = new CountDownLatch(1);

    @Bean
    public static MethodInterceptor interceptor() {
        return invocation -> {
            received.set((String) invocation.getArguments()[0]);
            return invocation.proceed();
        };
    }

    @Bean
    public static BeanPostProcessor listenerAdvisor() {
        return new ListenerWrapper(interceptor());
    }

}

public static class ListenerWrapper implements BeanPostProcessor, Ordered {

    private final MethodInterceptor interceptor;

    @Override
    public int getOrder() {
        return Ordered.HIGHEST_PRECEDENCE;
    }

    public ListenerWrapper(MethodInterceptor interceptor) {
        this.interceptor = interceptor;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (bean instanceof Listener) {
            ProxyFactory pf = new ProxyFactory(bean);
            NameMatchMethodPointcutAdvisor advisor = new NameMatchMethodPointcutAdvisor(this.interceptor);
            advisor.addMethodName("listen");
            pf.addAdvisor(advisor);
            return pf.getProxy();
        }
        return bean;
    }

}

（但您应该将 countDown 移到调用之后proceed()）。

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