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Posted to dev@commons.apache.org by ba...@apache.org on 2002/02/22 07:13:44 UTC
cvs commit: jakarta-commons-sandbox/io/src/test/org/apache/commons/io HexDumpTest.java
bayard 02/02/21 22:13:44
Added: io/src/test/org/apache/commons/io HexDumpTest.java
Log:
Moved over from the Commons.Utils package.
Revision Changes Path
1.1 jakarta-commons-sandbox/io/src/test/org/apache/commons/io/HexDumpTest.java
Index: HexDumpTest.java
===================================================================
/*
* $Header: /home/cvs/jakarta-commons-sandbox/io/src/test/org/apache/commons/io/HexDumpTest.java,v 1.1 2002/02/22 06:13:44 bayard Exp $
* $Revision: 1.1 $
* $Date: 2002/02/22 06:13:44 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2002 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 Group.
*
* 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.io;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import junit.framework.TestCase;
/**
* @author Scott Sanders (sanders at apache dot org)
* @author Marc Johnson (mjohnson at apache dot org)
* @version $Revision: 1.1 $ $Date: 2002/02/22 06:13:44 $
*/
public class HexDumpTest extends TestCase {
/**
* Creates new HexDumpTest
*
* @param name
*/
public HexDumpTest(String name) {
super(name);
}
private char toHex(final int n) {
char[] hexChars =
{
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
return hexChars[n % 16];
}
/**
* test dump method
*
* @exception IOException
*/
public void testDump()
throws IOException {
byte[] testArray = new byte[256];
for (int j = 0; j < 256; j++) {
testArray[j] = (byte) j;
}
ByteArrayOutputStream stream = new ByteArrayOutputStream();
HexDump.dump(testArray, 0, stream, 0);
byte[] outputArray = new byte[16 * (73 + HexDump.EOL.length())];
for (int j = 0; j < 16; j++) {
int offset = (73 + HexDump.EOL.length()) * j;
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) ' ';
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) toHex(k);
outputArray[offset++] = (byte) ' ';
}
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toAscii((j * 16) + k);
}
System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
HexDump.EOL.getBytes().length);
}
byte[] actualOutput = stream.toByteArray();
assertEquals("array size mismatch", outputArray.length,
actualOutput.length);
for (int j = 0; j < outputArray.length; j++) {
assertEquals("array[ " + j + "] mismatch", outputArray[j],
actualOutput[j]);
}
// verify proper behavior with non-zero offset
stream = new ByteArrayOutputStream();
HexDump.dump(testArray, 0x10000000, stream, 0);
outputArray = new byte[16 * (73 + HexDump.EOL.length())];
for (int j = 0; j < 16; j++) {
int offset = (73 + HexDump.EOL.length()) * j;
outputArray[offset++] = (byte) '1';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) ' ';
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) toHex(k);
outputArray[offset++] = (byte) ' ';
}
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toAscii((j * 16) + k);
}
System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
HexDump.EOL.getBytes().length);
}
actualOutput = stream.toByteArray();
assertEquals("array size mismatch", outputArray.length,
actualOutput.length);
for (int j = 0; j < outputArray.length; j++) {
assertEquals("array[ " + j + "] mismatch", outputArray[j],
actualOutput[j]);
}
// verify proper behavior with negative offset
stream = new ByteArrayOutputStream();
HexDump.dump(testArray, 0xFF000000, stream, 0);
outputArray = new byte[16 * (73 + HexDump.EOL.length())];
for (int j = 0; j < 16; j++) {
int offset = (73 + HexDump.EOL.length()) * j;
outputArray[offset++] = (byte) 'F';
outputArray[offset++] = (byte) 'F';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) ' ';
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toHex(j);
outputArray[offset++] = (byte) toHex(k);
outputArray[offset++] = (byte) ' ';
}
for (int k = 0; k < 16; k++) {
outputArray[offset++] = (byte) toAscii((j * 16) + k);
}
System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
HexDump.EOL.getBytes().length);
}
actualOutput = stream.toByteArray();
assertEquals("array size mismatch", outputArray.length,
actualOutput.length);
for (int j = 0; j < outputArray.length; j++) {
assertEquals("array[ " + j + "] mismatch", outputArray[j],
actualOutput[j]);
}
// verify proper behavior with non-zero index
stream = new ByteArrayOutputStream();
HexDump.dump(testArray, 0x10000000, stream, 0x81);
outputArray = new byte[(8 * (73 + HexDump.EOL.length())) - 1];
for (int j = 0; j < 8; j++) {
int offset = (73 + HexDump.EOL.length()) * j;
outputArray[offset++] = (byte) '1';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) '0';
outputArray[offset++] = (byte) toHex(j + 8);
outputArray[offset++] = (byte) '1';
outputArray[offset++] = (byte) ' ';
for (int k = 0; k < 16; k++) {
int index = 0x81 + (j * 16) + k;
if (index < 0x100) {
outputArray[offset++] = (byte) toHex(index / 16);
outputArray[offset++] = (byte) toHex(index);
} else {
outputArray[offset++] = (byte) ' ';
outputArray[offset++] = (byte) ' ';
}
outputArray[offset++] = (byte) ' ';
}
for (int k = 0; k < 16; k++) {
int index = 0x81 + (j * 16) + k;
if (index < 0x100) {
outputArray[offset++] = (byte) toAscii(index);
}
}
System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
HexDump.EOL.getBytes().length);
}
actualOutput = stream.toByteArray();
assertEquals("array size mismatch", outputArray.length,
actualOutput.length);
for (int j = 0; j < outputArray.length; j++) {
assertEquals("array[ " + j + "] mismatch", outputArray[j],
actualOutput[j]);
}
// verify proper behavior with negative index
try {
HexDump.dump(testArray, 0x10000000, new ByteArrayOutputStream(),
-1);
fail("should have caught ArrayIndexOutOfBoundsException on negative index");
} catch (ArrayIndexOutOfBoundsException ignored_exception) {
// as expected
}
// verify proper behavior with index that is too large
try {
HexDump.dump(testArray, 0x10000000, new ByteArrayOutputStream(),
testArray.length);
fail("should have caught ArrayIndexOutOfBoundsException on large index");
} catch (ArrayIndexOutOfBoundsException ignored_exception) {
// as expected
}
// verify proper behavior with null stream
try {
HexDump.dump(testArray, 0x10000000, null, 0);
fail("should have caught IllegalArgumentException on negative index");
} catch (IllegalArgumentException ignored_exception) {
// as expected
}
}
private char toAscii(final int c) {
char rval = '.';
if ((c >= 32) && (c <= 126)) {
rval = (char) c;
}
return rval;
}
/**
* main method to run the unit tests
*
* @param ignored_args
*/
public static void main(String[] ignored_args) {
System.out.println("Testing io.HexDump functionality");
junit.textui.TestRunner.run(HexDumpTest.class);
}
}
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