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Posted to dev@commons.apache.org by sc...@apache.org on 2002/09/13 00:01:01 UTC
cvs commit: jakarta-commons/lang/src/test/org/apache/commons/lang/builder HashCodeBuilderTest.java
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"
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*
* 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,
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* ====================================================================
*
* 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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