content: /* ========================================================================
   * JCommon : a free general purpose class library for the Java(tm) platform
   * ========================================================================
   *
   * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   * 
   * Project Info:  http://www.jfree.org/jcommon/index.html
   *
   * This library is free software; you can redistribute it and/or modify it 
   * under the terms of the GNU Lesser General Public License as published by 
   * the Free Software Foundation; either version 2.1 of the License, or 
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but 
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
   * USA.  
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
   * in the United States and other countries.]
   * 
   * --------------------
   * ArrayUtilsTests.java
   * --------------------
   * (C) Copyright 2004, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * $Id: ArrayUtilitiesTests.java,v 1.4 2007/11/02 17:50:37 taqua Exp $
   *
   * Changes
   * -------
   * 24-Aug-2004 : Version 1 (DG);
   * 04-Oct-2004 : Renamed ArrayUtilsTests --> ArrayUtilitiesTests (DG);
   *
   */
  
  package org.jfree.util.junit;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  import org.jfree.util.ArrayUtilities;
  
  /**
   * Tests for the {@link ArrayUtilities} class.
   */
  public class ArrayUtilitiesTests extends TestCase {
  
      /**
       * Returns the tests as a test suite.
       *
       * @return The test suite.
       */
      public static Test suite() {
          return new TestSuite(ArrayUtilitiesTests.class);
      }
  
      /**
       * Constructs a new set of tests.
       *
       * @param name  the name of the tests.
       */
      public ArrayUtilitiesTests(String name) {
          super(name);
      }
  
      /**
       * Some tests for the hasDuplicateItems() method.
       */
      public void testHasDuplicateItems() {
          Object[] a1 = new Object[] {"1", "2", "3"};
          Object[] a2 = new Object[] {"1", "1", "3"};
          Object[] a3 = new Object[] {null, "2", null};
          assertFalse(ArrayUtilities.hasDuplicateItems(a1));
          assertTrue(ArrayUtilities.hasDuplicateItems(a2));
          assertFalse(ArrayUtilities.hasDuplicateItems(a3));
      }
      
      /**
       * Some checks for the equalReferencesInArrays() method.
       */
      public void testEqualReferencesInArrays() {
          Object[] a1 = new Object[] {};
          Object[] a2 = new Object[] {};
          Object[] a3 = new Object[] {null};
          Object[] a4 = new Object[] {null};
          Object[] a5 = new Object[] {"A"};
          Object[] a6 = new Object[] {"A"};
          Object[] a7 = new Object[] {"A", "B"};
          Object[] a8 = new Object[] {"A", "B"};
          Object[] a9 = new Object[] {"A", null};
          Object[] a10 = new Object[] {"A", null};
          
          assertTrue(ArrayUtilities.equalReferencesInArrays(a1, a2));
          assertFalse(ArrayUtilities.equalReferencesInArrays(a1, a3));
          assertTrue(ArrayUtilities.equalReferencesInArrays(a3, a4));
          assertFalse(ArrayUtilities.equalReferencesInArrays(a3, a5));
          assertTrue(ArrayUtilities.equalReferencesInArrays(a5, a6));
          assertFalse(ArrayUtilities.equalReferencesInArrays(a5, a7));
          assertTrue(ArrayUtilities.equalReferencesInArrays(a7, a8));
          assertFalse(ArrayUtilities.equalReferencesInArrays(a7, a9));
          assertTrue(ArrayUtilities.equalReferencesInArrays(a9, a10));
      }
  }
  