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AbstractTramMessageTest.java
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AbstractTramMessageTest.java
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package io.eventuate.tram.examples.basic.messages;
import io.eventuate.tram.messaging.common.Message;
import io.eventuate.tram.messaging.consumer.MessageConsumer;
import io.eventuate.tram.messaging.producer.MessageBuilder;
import io.eventuate.tram.messaging.producer.MessageProducer;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.Collections;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public abstract class AbstractTramMessageTest {
private long uniqueId = System.currentTimeMillis();
private String subscriberId = "subscriberId" + uniqueId;
private String destination = "destination" + uniqueId;
private String payload = "{" + "\"Hello\":" + uniqueId + "}";
@Autowired
private MessageProducer messageProducer;
@Autowired
private MessageConsumer messageConsumer;
private BlockingQueue<Message> queue = new LinkedBlockingDeque<>();
@Test
public void shouldReceiveMessage() throws InterruptedException {
messageConsumer.subscribe(subscriberId, Collections.singleton(destination), this::handleMessage);
messageProducer.send(destination, MessageBuilder.withPayload(payload).build());
Message m = queue.poll(10, TimeUnit.SECONDS);
assertNotNull(m);
assertEquals(payload, m.getPayload());
}
private void handleMessage(Message message) {
queue.add(message);
}
}