/*
* Copyright 2006-2007 the original author or authors.
*
* 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.springframework.batch.repeat.support;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.NoSuchElementException;
import org.junit.Test;
/**
* @author Dave Syer
*
*/
public class ThrottleLimitResultQueueTests {
private ThrottleLimitResultQueue<String> queue = new ThrottleLimitResultQueue<String>(1);
@Test
public void testPutTake() throws Exception {
queue.expect();
assertTrue(queue.isExpecting());
assertTrue(queue.isEmpty());
queue.put("foo");
assertFalse(queue.isEmpty());
assertEquals("foo", queue.take());
assertFalse(queue.isExpecting());
}
@Test
public void testPutWithoutExpecting() throws Exception {
assertFalse(queue.isExpecting());
try {
queue.put("foo");
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e) {
// expected
}
}
@Test
public void testTakeWithoutExpecting() throws Exception {
assertFalse(queue.isExpecting());
try {
queue.take();
fail("Expected NoSuchElementException");
} catch (NoSuchElementException e) {
// expected
}
}
@Test
public void testThrottleLimit() throws Exception {
queue.expect();
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(100L);
}
catch (InterruptedException e) {
e.printStackTrace();
Thread.currentThread().interrupt();
}
queue.put("foo");
}
}).start();
long t0 = System.currentTimeMillis();
queue.expect();
long t1 = System.currentTimeMillis();
assertEquals("foo", queue.take());
assertTrue(queue.isExpecting());
assertTrue("Did not block on expect (throttle limit should have been hit): time taken="+(t1-t0), t1-t0>50);
}
}