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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.messagebus.test;
import com.yahoo.messagebus.Message;
import com.yahoo.messagebus.Reply;
import com.yahoo.text.Utf8String;
import org.junit.jupiter.api.Test;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class QueueAdapterTestCase {
private static final int NO_WAIT = 0;
private static final int WAIT_FOREVER = 60;
@Test
void requireThatAccessorsWork() {
QueueAdapter queue = new QueueAdapter();
assertTrue(queue.isEmpty());
assertEquals(0, queue.size());
Message msg = new MyMessage();
queue.handleMessage(msg);
assertFalse(queue.isEmpty());
assertEquals(1, queue.size());
MyReply reply = new MyReply();
queue.handleReply(reply);
assertFalse(queue.isEmpty());
assertEquals(2, queue.size());
assertSame(msg, queue.dequeue());
assertSame(reply, queue.dequeue());
}
@Test
void requireThatSizeCanBeWaitedFor() {
final QueueAdapter queue = new QueueAdapter();
assertTrue(queue.waitSize(0, NO_WAIT));
assertFalse(queue.waitSize(1, NO_WAIT));
queue.handleMessage(new MyMessage());
assertFalse(queue.waitSize(0, NO_WAIT));
assertTrue(queue.waitSize(1, NO_WAIT));
Thread thread = new Thread() {
@Override
public void run() {
try {
Thread.sleep(100);
queue.handleMessage(new MyMessage());
} catch (InterruptedException e) {
}
}
};
thread.start();
assertTrue(queue.waitSize(2, WAIT_FOREVER));
}
@Test
void requireThatWaitCanBeInterrupted() throws InterruptedException {
final QueueAdapter queue = new QueueAdapter();
final AtomicReference<Boolean> result = new AtomicReference<>();
Thread thread = new Thread() {
@Override
public void run() {
result.set(queue.waitSize(1, WAIT_FOREVER));
}
};
thread.start();
thread.interrupt();
thread.join();
assertEquals(Boolean.FALSE, result.get());
}
private static class MyMessage extends Message {
@Override
public Utf8String getProtocol() {
return null;
}
@Override
public int getType() {
return 0;
}
}
private static class MyReply extends Reply {
@Override
public Utf8String getProtocol() {
return null;
}
@Override
public int getType() {
return 0;
}
}
}
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