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From scolebou...@apache.org
Subject cvs commit: jakarta-commons/lang/src/test/org/apache/commons/lang/builder HashCodeBuilderTest.java
Date Thu, 12 Sep 2002 22:01:01 GMT
scolebourne    2002/09/12 15:01:01

  Added:       lang/src/test/org/apache/commons/lang/builder
                        HashCodeBuilderTest.java
  Log:
  Add extra tests for reflection and multi dimensional arrays
  
  Revision  Changes    Path
  1.1                  jakarta-commons/lang/src/test/org/apache/commons/lang/builder/HashCodeBuilderTest.java
  
  Index: HashCodeBuilderTest.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.commons.lang.builder;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  import junit.textui.TestRunner;
  /**
   * Unit tests {@link org.apache.commons.lang.HashCodeBuilder}.
   *
   * @author <a href="mailto:scolebourne@joda.org">Stephen Colebourne</a>
   * @version $Id: HashCodeBuilderTest.java,v 1.1 2002/09/12 22:01:00 scolebourne Exp $
   */
  public class HashCodeBuilderTest extends TestCase {
  
      public HashCodeBuilderTest(String name) {
          super(name);
      }
  
      public static void main(String[] args) {
          TestRunner.run(suite());
      }
  
      public static Test suite() {
          TestSuite suite = new TestSuite(HashCodeBuilderTest.class);
          suite.setName("HashCodeBuilder Tests");
          return suite;
      }
  
      protected void setUp() throws Exception {
          super.setUp();
      }
  
      protected void tearDown() throws Exception {
          super.tearDown();
      }
  
      //-----------------------------------------------------------------------
  
      public void testConstructorEx1() {
          try {
              new HashCodeBuilder(0, 0);
              
          } catch (IllegalArgumentException ex) {
              return;
          }
          fail();
      }
  
      public void testConstructorEx2() {
          try {
              new HashCodeBuilder(2, 2);
              
          } catch (IllegalArgumentException ex) {
              return;
          }
          fail();
      }
  
      static class TestObject {
          private int a;
          public TestObject(int a) {
              this.a = a;
          }
          public boolean equals(Object o) {
              if (o == this) {
                  return true;
              }
              if (!(o instanceof TestObject)) {
                  return false;
              }
              TestObject rhs = (TestObject) o;
              return (a == rhs.a);
          }
  
          public void setA(int a) {
              this.a = a;
          }
  
          public int getA() {
              return a;
          }
      }
  
      public void testReflectionHashCode() {
          assertEquals(17 * 37, HashCodeBuilder.reflectionHashCode(new TestObject(0)));
          assertEquals(17 * 37 + 123456, HashCodeBuilder.reflectionHashCode(new TestObject(123456)));
      }
  
      public void testReflectionHashCodeEx1() {
          try {
              HashCodeBuilder.reflectionHashCode(0, 0, new TestObject(0), true);
          } catch (IllegalArgumentException ex) {
              return;
          }
          fail();
      }
  
      public void testReflectionHashCodeEx2() {
          try {
              HashCodeBuilder.reflectionHashCode(2, 2, new TestObject(0), true);
          } catch (IllegalArgumentException ex) {
              return;
          }
          fail();
      }
  
      public void testReflectionHashCodeEx3() {
          try {
              HashCodeBuilder.reflectionHashCode(13, 19, null, true);
          } catch (IllegalArgumentException ex) {
              return;
          }
          fail();
      }
  
      public void testObject() {
          Object obj = null;
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj = new Object();
          assertEquals(17 * 37 + obj.hashCode(), new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testLong() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((long) 0L).toHashCode());
          assertEquals(17 * 37 + (int) (123456789L ^ (123456789L >> 32)), new HashCodeBuilder(17,
37).append((long) 123456789L).toHashCode());
      }
  
      public void testInt() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((int) 0).toHashCode());
          assertEquals(17 * 37 + 123456, new HashCodeBuilder(17, 37).append((int) 123456).toHashCode());
      }
  
      public void testShort() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((short) 0).toHashCode());
          assertEquals(17 * 37 + 12345, new HashCodeBuilder(17, 37).append((short) 12345).toHashCode());
      }
  
      public void testChar() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((char) 0).toHashCode());
          assertEquals(17 * 37 + 1234, new HashCodeBuilder(17, 37).append((char) 1234).toHashCode());
      }
  
      public void testByte() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((byte) 0).toHashCode());
          assertEquals(17 * 37 + 123, new HashCodeBuilder(17, 37).append((byte) 123).toHashCode());
      }
  
      public void testDouble() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((double) 0d).toHashCode());
          double d = 1234567.89;
          long l = Double.doubleToLongBits(d);
          assertEquals(17 * 37 + (int) (l ^ (l >> 32)), new HashCodeBuilder(17, 37).append(d).toHashCode());
      }
  
      public void testFloat() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((float) 0f).toHashCode());
          float f = 1234.89f;
          int i = Float.floatToIntBits(f);
          assertEquals(17 * 37 + i, new HashCodeBuilder(17, 37).append(f).toHashCode());
      }
  
      public void testBoolean() {
          assertEquals(17 * 37 + 0, new HashCodeBuilder(17, 37).append(true).toHashCode());
          assertEquals(17 * 37 + 1, new HashCodeBuilder(17, 37).append(false).toHashCode());
      }
  
      public void testObjectArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((Object[]) null).toHashCode());
          Object[] obj = new Object[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = new Object();
          assertEquals((17 * 37 + obj[0].hashCode()) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = new Object();
          assertEquals( (17 * 37 + obj[0].hashCode()) * 37 + obj[1].hashCode(), new HashCodeBuilder(17,
37).append(obj).toHashCode());
      }
  
      public void testObjectArrayAsObject() {
          Object[] obj = new Object[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = new Object();
          assertEquals((17 * 37 + obj[0].hashCode()) * 37, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
          obj[1] = new Object();
          assertEquals( (17 * 37 + obj[0].hashCode()) * 37 + obj[1].hashCode(), new HashCodeBuilder(17,
37).append((Object) obj).toHashCode());
      }
  
      public void testLongArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((long[]) null).toHashCode());
          long[] obj = new long[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = 5L;
          int h1 = (int) (5L ^ (5L >> 32));
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = 6L;
          int h2 = (int) (6L ^ (6L >> 32));
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testLongArrayAsObject() {
          long[] obj = new long[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = 5L;
          int h1 = (int) (5L ^ (5L >> 32));
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = 6L;
          int h2 = (int) (6L ^ (6L >> 32));
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testIntArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((int[]) null).toHashCode());
          int[] obj = new int[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testIntArrayAsObject() {
          int[] obj = new int[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testShortArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((short[]) null).toHashCode());
          short[] obj = new short[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = (short) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = (short) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testShortArrayAsObject() {
          short[] obj = new short[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = (short) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = (short) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testCharArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((char[]) null).toHashCode());
          char[] obj = new char[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = (char) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = (char) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testCharArrayAsObject() {
          char[] obj = new char[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = (char) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = (char) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testByteArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((byte[]) null).toHashCode());
          byte[] obj = new byte[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = (byte) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = (byte) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testByteArrayAsObject() {
          byte[] obj = new byte[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = (byte) 5;
          assertEquals((17 * 37 + 5) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = (byte) 6;
          assertEquals( (17 * 37 + 5) * 37 + 6, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testDoubleArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((double[]) null).toHashCode());
          double[] obj = new double[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = 5.4d;
          long l1 = Double.doubleToLongBits(5.4d);
          int h1 = (int) (l1 ^ (l1 >> 32));
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = 6.3d;
          long l2 = Double.doubleToLongBits(6.3d);
          int h2 = (int) (l2 ^ (l2 >> 32));
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testDoubleArrayAsObject() {
          double[] obj = new double[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = 5.4d;
          long l1 = Double.doubleToLongBits(5.4d);
          int h1 = (int) (l1 ^ (l1 >> 32));
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = 6.3d;
          long l2 = Double.doubleToLongBits(6.3d);
          int h2 = (int) (l2 ^ (l2 >> 32));
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testFloatArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((float[]) null).toHashCode());
          float[] obj = new float[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = 5.4f;
          int h1 = Float.floatToIntBits(5.4f);
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = 6.3f;
          int h2 = Float.floatToIntBits(6.3f);
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testFloatArrayAsObject() {
          float[] obj = new float[2];
          assertEquals((17 * 37) * 37 , new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[0] = 5.4f;
          int h1 = Float.floatToIntBits(5.4f);
          assertEquals((17 * 37 + h1) * 37, new HashCodeBuilder(17, 37).append((Object) obj).toHashCode());
          obj[1] = 6.3f;
          int h2 = Float.floatToIntBits(6.3f);
          assertEquals( (17 * 37 + h1) * 37 + h2, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testBooleanArray() {
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append((boolean[]) null).toHashCode());
          boolean[] obj = new boolean[2];
          assertEquals((17 * 37 + 1) * 37 + 1 , new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = true;
          assertEquals((17 * 37 + 0) * 37 + 1, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = false;
          assertEquals( (17 * 37 + 0) * 37 + 1, new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
      public void testBooleanArrayAsObject() {
          boolean[] obj = new boolean[2];
          assertEquals((17 * 37 + 1) * 37 + 1 , new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
          obj[0] = true;
          assertEquals((17 * 37 + 0) * 37 + 1, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
          obj[1] = false;
          assertEquals( (17 * 37 + 0) * 37 + 1, new HashCodeBuilder(17, 37).append((Object)
obj).toHashCode());
      }
  
      public void testBooleanMultiArray() {
          boolean[][] obj = new boolean[2][];
          assertEquals((17 * 37) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = new boolean[0];
          assertEquals(17 * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = new boolean[1];
          assertEquals((17 * 37 + 1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0] = new boolean[2];
          assertEquals(((17 * 37 + 1) * 37 + 1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[0][0] = true;
          assertEquals(((17 * 37 + 0) * 37 + 1) * 37, new HashCodeBuilder(17, 37).append(obj).toHashCode());
          obj[1] = new boolean[1];
          assertEquals( (((17 * 37 + 0) * 37 + 1) * 37 + 1), new HashCodeBuilder(17, 37).append(obj).toHashCode());
      }
  
  }
  
  
  

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