/*
    * 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 static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  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;
  import org.junit.jupiter.api.Test;
  
  /**
   * Extension of {@link AbstractCollectionTest} for exercising the
   * {@link TransformedQueue} implementation.
   */
  public class TransformedQueueTest<E> extends AbstractQueueTest<E> {
  
      public TransformedQueueTest() {
          super(TransformedQueueTest.class.getSimpleName());
      }
  
      @Override
      public String getCompatibilityVersion() {
          return "4";
      }
  
      @Override
      public Queue<E> makeConfirmedCollection() {
          return new LinkedList<>();
      }
  
      @Override
      public Queue<E> makeConfirmedFullCollection() {
          return new LinkedList<>(Arrays.asList(getFullElements()));
      }
  
      @Override
      @SuppressWarnings("unchecked")
      public Queue<E> makeFullCollection() {
          final Queue<E> list = new LinkedList<>(Arrays.asList(getFullElements()));
          return TransformedQueue.transformingQueue(list, (Transformer<E, E>) TransformedCollectionTest.NOOP_TRANSFORMER);
      }
  
      @Override
      @SuppressWarnings("unchecked")
      public Queue<E> makeObject() {
          return TransformedQueue.transformingQueue(new LinkedList<>(),
                  (Transformer<E, E>) TransformedCollectionTest.NOOP_TRANSFORMER);
      }
  
      @Test
      public void testTransformedQueue() {
          final Queue<Object> queue = TransformedQueue.transformingQueue(new LinkedList<>(),
                  TransformedCollectionTest.STRING_TO_INTEGER_TRANSFORMER);
          assertEquals(0, queue.size());
          final Object[] elements = { "1", "3", "5", "7", "2", "4", "6" };
          for (int i = 0; i < elements.length; i++) {
              queue.add(elements[i]);
              assertEquals(i + 1, queue.size());
              assertTrue(queue.contains(Integer.valueOf((String) elements[i])));
              assertFalse(queue.contains(elements[i]));
          }
  
          assertFalse(queue.remove(elements[0]));
          assertTrue(queue.remove(Integer.valueOf((String) elements[0])));
  
      }
  
      @SuppressWarnings({ "rawtypes", "unchecked" })
      @Test
      public void testTransformedQueue_decorateTransform() {
          final Queue originalQueue = new LinkedList();
          final Object[] elements = {"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) {
             assertTrue(queue.contains(Integer.valueOf((String) el)));
             assertFalse(queue.contains(el));
         }
 
         assertFalse(queue.remove(elements[0]));
         assertTrue(queue.remove(Integer.valueOf((String) elements[0])));
     }
 
 //  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");
 //  }
 
 }