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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.concurrent;
import static org.junit.Assert.*;
import org.junit.Test;
import com.yahoo.collections.Tuple2;
/**
* Check for com.yahoo.concurrent.Receiver.
*
* @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
*/
public class ReceiverTestCase {
private static class Worker implements Runnable {
private static final String HELLO_WORLD = "Hello, World!";
private final Receiver<String> receiver;
private final long timeToWait;
Worker(Receiver<String> receiver, long timeToWait) {
this.receiver = receiver;
this.timeToWait = timeToWait;
}
@Override
public void run() {
try {
Thread.sleep(timeToWait);
} catch (InterruptedException e) {
fail("Test was interrupted.");
}
receiver.put(HELLO_WORLD);
}
}
@Test
public void testPut() throws InterruptedException {
Receiver<String> receiver = new Receiver<>();
Worker runnable = new Worker(receiver, 0);
Thread worker = new Thread(runnable);
worker.start();
Tuple2<Receiver.MessageState, String> answer = receiver.get(1000L * 1000L * 1000L);
assertEquals(Receiver.MessageState.VALID, answer.first);
assertEquals(answer.second, Worker.HELLO_WORLD);
}
@Test
public void testTimeOut() throws InterruptedException {
Receiver<String> receiver = new Receiver<>();
Worker runnable = new Worker(receiver, 1000L * 1000L * 1000L);
Thread worker = new Thread(runnable);
worker.start();
Tuple2<Receiver.MessageState, String> answer = receiver.get(500L);
assertEquals(Receiver.MessageState.TIMEOUT, answer.first);
}
}
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