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/*
* Copyright 2014-2015 Open Networking Laboratory
*
* 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.
*/
package org.onlab.nio;
import org.junit.Test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.channels.ServerSocketChannel;
import java.util.concurrent.CountDownLatch;
import static org.junit.Assert.assertEquals;
import static org.onlab.junit.TestTools.delay;
/**
* Unit tests for AcceptLoop.
*/
public class AcceptorLoopTest extends AbstractLoopTest {
private static final int PICK_EPHEMERAL = 0;
private static final SocketAddress SOCK_ADDR = new InetSocketAddress("127.0.0.1", PICK_EPHEMERAL);
private static class MyAcceptLoop extends AcceptorLoop {
private final CountDownLatch loopStarted = new CountDownLatch(1);
private final CountDownLatch loopFinished = new CountDownLatch(1);
private final CountDownLatch runDone = new CountDownLatch(1);
private final CountDownLatch ceaseLatch = new CountDownLatch(1);
private int acceptCount = 0;
MyAcceptLoop() throws IOException {
super(500, SOCK_ADDR);
}
@Override
protected void acceptConnection(ServerSocketChannel ssc) throws IOException {
acceptCount++;
}
@Override
public void loop() throws IOException {
loopStarted.countDown();
super.loop();
loopFinished.countDown();
}
@Override
public void run() {
super.run();
runDone.countDown();
}
@Override
public void shutdown() {
super.shutdown();
ceaseLatch.countDown();
}
}
@Test
public void basic() throws IOException {
MyAcceptLoop myAccLoop = new MyAcceptLoop();
AcceptorLoop accLoop = myAccLoop;
exec.execute(accLoop);
waitForLatch(myAccLoop.loopStarted, "loopStarted");
delay(200); // take a quick nap
accLoop.shutdown();
waitForLatch(myAccLoop.loopFinished, "loopFinished");
waitForLatch(myAccLoop.runDone, "runDone");
assertEquals(0, myAccLoop.acceptCount);
}
}
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