/*
    * 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.comparators;
  
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.Comparator;
  import java.util.LinkedList;
  import java.util.List;
  
  import org.apache.commons.collections4.ComparatorUtils;
  import org.apache.commons.collections4.Transformer;
  import org.apache.commons.collections4.TransformerUtils;
  import org.junit.jupiter.api.Test;
  
  /**
   * Test class for TransformingComparator.
   */
  public class TransformingComparatorTest extends AbstractComparatorTest<Integer> {
  
      @Override
      @SuppressWarnings("boxing") // OK in test code
      public List<Integer> getComparableObjectsOrdered() {
          final List<Integer> list = new LinkedList<>();
          list.add(1);
          list.add(2);
          list.add(3);
          list.add(4);
          list.add(5);
          return list;
      }
  
      @Override
      public String getCompatibilityVersion() {
          return "4";
      }
  
      @Override
      public Comparator<Integer> makeObject() {
          final Comparator<String> decorated = new ComparableComparator<>();
          return ComparatorUtils.transformedComparator(decorated, TransformerUtils.<Integer>stringValueTransformer());
      }
  
      @Test
      public void testEquals() {
          final Transformer<String, String> t1 = TransformerUtils.nopTransformer();
          final TransformingComparator<String, String> comp1 = new TransformingComparator<>(t1);
          final TransformingComparator<String, String> comp2 = new TransformingComparator<>(t1, comp1);
  
          // Checks the contract: equals-hashCode on comp1 and comp2
          assertTrue(comp1.equals(comp2) ? comp1.hashCode() == comp2.hashCode() : true,
                  "Contract failed: equals-hashCode");
  
          // Checks the contract: equals-hashCode on comp1 and comp2
          assertTrue(comp2.equals(comp1) ? comp2.hashCode() == comp1.hashCode() : true,
                  "Contract failed: equals-hashCode");
      }
  
  //    public void testCreate() throws Exception {
  //        writeExternalFormToDisk((java.io.Serializable) makeObject(), "src/test/resources/data/test/TransformingComparator.version4.obj");
  //    }
  
  }