From 5cab6528eae28321fcd7bea44e83bd46e91fac63 Mon Sep 17 00:00:00 2001 From: Stephen Colebourne Date: Thu, 12 Sep 2002 22:01:00 +0000 Subject: [PATCH] Add extra tests for reflection and multi dimensional arrays git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137019 13f79535-47bb-0310-9956-ffa450edef68 --- .../lang/builder/HashCodeBuilderTest.java | 422 ++++++++++++++++++ 1 file changed, 422 insertions(+) create mode 100644 src/test/org/apache/commons/lang/builder/HashCodeBuilderTest.java diff --git a/src/test/org/apache/commons/lang/builder/HashCodeBuilderTest.java b/src/test/org/apache/commons/lang/builder/HashCodeBuilderTest.java new file mode 100644 index 000000000..898c258e8 --- /dev/null +++ b/src/test/org/apache/commons/lang/builder/HashCodeBuilderTest.java @@ -0,0 +1,422 @@ +/* ==================================================================== + * 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 + * . + */ +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 Stephen Colebourne + * @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()); + } + +}