/*
    * 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;
  
  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 org.junit.jupiter.api.Test;
  
  public class ArrayUtilsTest {
  
      @Test
      public void testContains() {
          final Object[] array = { "0", "1", "2", "3", null, "0" };
          assertFalse(ArrayUtils.contains(null, null));
          assertFalse(ArrayUtils.contains(null, "1"));
          assertTrue(ArrayUtils.contains(array, "0"));
          assertTrue(ArrayUtils.contains(array, "1"));
          assertTrue(ArrayUtils.contains(array, "2"));
          assertTrue(ArrayUtils.contains(array, "3"));
          assertTrue(ArrayUtils.contains(array, null));
          assertFalse(ArrayUtils.contains(array, "notInArray"));
      }
  
      @Test
      public void testContains_LANG_1261() {
          class LANG1261ParentObject {
              @Override
              public boolean equals(final Object o) {
                  return true;
              }
  
              @Override
              public int hashCode() {
                  // Pairs with equals()
                  return super.hashCode();
              }
          }
          class LANG1261ChildObject extends LANG1261ParentObject {
          }
          final Object[] array = new LANG1261ChildObject[] { new LANG1261ChildObject() };
          assertTrue(ArrayUtils.contains(array, new LANG1261ParentObject()));
      }
  
      @Test
      public void testIndexOf() {
          final Object[] array = { "0", "1", "2", "3", null, "0" };
          assertEquals(-1, ArrayUtils.indexOf(null, null));
          assertEquals(-1, ArrayUtils.indexOf(null, "0"));
          assertEquals(-1, ArrayUtils.indexOf(new Object[0], "0"));
          assertEquals(0, ArrayUtils.indexOf(array, "0"));
          assertEquals(1, ArrayUtils.indexOf(array, "1"));
          assertEquals(2, ArrayUtils.indexOf(array, "2"));
          assertEquals(3, ArrayUtils.indexOf(array, "3"));
          assertEquals(4, ArrayUtils.indexOf(array, null));
          assertEquals(-1, ArrayUtils.indexOf(array, "notInArray"));
      }
  }