/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.waveprotocol.wave.client.common.util;
import com.google.gwt.junit.client.GWTTestCase;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Random;
/**
* @author piotrkaleta@google.com (Piotr Kaleta)
*/
public class FastQueueGwtTest extends GWTTestCase {
public void testAddNull() throws Exception {
Queue<Integer> queue = new FastQueue<Integer>();
queue.add(null);
Integer value = queue.remove();
assertEquals(null, value);
}
public void testQueue() throws Exception {
final int TEST_ITERS = 500;
int nextInt = 0;
Random random = new Random(1);
Queue<Integer> queue = new FastQueue<Integer>();
Queue<Integer> reference = new LinkedList<Integer>();
for (int i = 0; i < TEST_ITERS; i++) {
if (random.nextBoolean()) {
// enqueue test
Integer value = random.nextDouble() < 0.9 ? nextInt++ : null;
queue.offer(value);
reference.offer(value);
assertEquals(reference.size(), queue.size());
} else {
// dequeue test
Integer actual = queue.poll();
Integer expected = reference.poll();
assertEquals(expected, actual);
assertEquals(reference.size(), queue.size());
}
}
// try the rest
while (!reference.isEmpty()) {
Integer actual = queue.poll();
Integer expected = reference.poll();
assertEquals(expected, actual);
assertEquals(reference.size(), queue.size());
}
}
@Override
public String getModuleName() {
return "org.waveprotocol.wave.client.common.util.tests";
}
}