/*
* 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.apache.commons.collections4.queue;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Queue;
import org.apache.commons.collections4.Transformer;
import org.apache.commons.collections4.collection.AbstractCollectionTest;
import org.apache.commons.collections4.collection.TransformedCollectionTest;
/**
* Extension of {@link AbstractCollectionTest} for exercising the
* {@link TransformedQueue} implementation.
*
* @since 4.0
* @version $Id$
*/
public class TransformedQueueTest<E> extends AbstractQueueTest<E> {
public TransformedQueueTest(final String testName) {
super(testName);
}
//-----------------------------------------------------------------------
@Override
public Queue<E> makeConfirmedCollection() {
return new LinkedList<E>();
}
@Override
public Queue<E> makeConfirmedFullCollection() {
final Queue<E> list = new LinkedList<E>();
list.addAll(Arrays.asList(getFullElements()));
return list;
}
@Override
@SuppressWarnings("unchecked")
public Queue<E> makeObject() {
return TransformedQueue.transformingQueue(new LinkedList<E>(),
(Transformer<E, E>) TransformedCollectionTest.NOOP_TRANSFORMER);
}
@Override
@SuppressWarnings("unchecked")
public Queue<E> makeFullCollection() {
final Queue<E> list = new LinkedList<E>();
list.addAll(Arrays.asList(getFullElements()));
return TransformedQueue.transformingQueue(list, (Transformer<E, E>) TransformedCollectionTest.NOOP_TRANSFORMER);
}
//-----------------------------------------------------------------------
public void testTransformedQueue() {
final Queue<Object> queue = TransformedQueue.transformingQueue(new LinkedList<Object>(),
TransformedCollectionTest.STRING_TO_INTEGER_TRANSFORMER);
assertEquals(0, queue.size());
final Object[] elements = new Object[] { "1", "3", "5", "7", "2", "4", "6" };
for (int i = 0; i < elements.length; i++) {
queue.add(elements[i]);
assertEquals(i + 1, queue.size());
assertEquals(true, queue.contains(Integer.valueOf((String) elements[i])));
assertEquals(false, queue.contains(elements[i]));
}
assertEquals(false, queue.remove(elements[0]));
assertEquals(true, queue.remove(Integer.valueOf((String) elements[0])));
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public void testTransformedQueue_decorateTransform() {
final Queue originalQueue = new LinkedList();
final Object[] elements = new Object[] {"1", "3", "5", "7", "2", "4", "6"};
Collections.addAll(originalQueue, elements);
final Queue<?> queue = TransformedQueue.transformedQueue(originalQueue,
TransformedCollectionTest.STRING_TO_INTEGER_TRANSFORMER);
assertEquals(elements.length, queue.size());
for (final Object el : elements) {
assertEquals(true, queue.contains(Integer.valueOf((String) el)));
assertEquals(false, queue.contains(el));
}
assertEquals(false, queue.remove(elements[0]));
assertEquals(true, queue.remove(Integer.valueOf((String) elements[0])));
}
@Override
public String getCompatibilityVersion() {
return "4";
}
// public void testCreate() throws Exception {
// resetEmpty();
// writeExternalFormToDisk((java.io.Serializable) getCollection(), "src/test/resources/data/test/TransformedQueue.emptyCollection.version4.obj");
// resetFull();
// writeExternalFormToDisk((java.io.Serializable) getCollection(), "src/test/resources/data/test/TransformedQueue.fullCollection.version4.obj");
// }
}