353 lines
12 KiB
Java
353 lines
12 KiB
Java
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2002 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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package org.apache.poi.util;
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import junit.framework.*;
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import java.io.*;
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/**
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* @author Marc Johnson (mjohnson at apache dot org)
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*/
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public class TestHexDump
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extends TestCase
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{
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/**
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* Creates new TestHexDump
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*
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* @param name
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*/
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public TestHexDump(String name)
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{
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super(name);
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}
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private char toHex(final int n)
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{
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char[] hexChars =
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{
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C',
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'D', 'E', 'F'
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};
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return hexChars[ n % 16 ];
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}
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/**
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* test dump method
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*
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* @exception IOException
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*/
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public void testDump()
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throws IOException
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{
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byte[] testArray = new byte[ 256 ];
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for (int j = 0; j < 256; j++)
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{
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testArray[ j ] = ( byte ) j;
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}
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ByteArrayOutputStream stream = new ByteArrayOutputStream();
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HexDump.dump(testArray, 0, stream, 0);
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byte[] outputArray = new byte[ 16 * (73 + HexDump.EOL.length()) ];
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for (int j = 0; j < 16; j++)
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{
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int offset = (73 + HexDump.EOL.length()) * j;
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) ' ';
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) toHex(k);
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outputArray[ offset++ ] = ( byte ) ' ';
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}
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toAscii((j * 16) + k);
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}
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System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
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HexDump.EOL.getBytes().length);
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}
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byte[] actualOutput = stream.toByteArray();
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assertEquals("array size mismatch", outputArray.length,
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actualOutput.length);
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for (int j = 0; j < outputArray.length; j++)
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{
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assertEquals("array[ " + j + "] mismatch", outputArray[ j ],
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actualOutput[ j ]);
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}
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// verify proper behavior with non-zero offset
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stream = new ByteArrayOutputStream();
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HexDump.dump(testArray, 0x10000000, stream, 0);
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outputArray = new byte[ 16 * (73 + HexDump.EOL.length()) ];
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for (int j = 0; j < 16; j++)
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{
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int offset = (73 + HexDump.EOL.length()) * j;
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outputArray[ offset++ ] = ( byte ) '1';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) ' ';
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) toHex(k);
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outputArray[ offset++ ] = ( byte ) ' ';
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}
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toAscii((j * 16) + k);
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}
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System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
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HexDump.EOL.getBytes().length);
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}
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actualOutput = stream.toByteArray();
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assertEquals("array size mismatch", outputArray.length,
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actualOutput.length);
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for (int j = 0; j < outputArray.length; j++)
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{
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assertEquals("array[ " + j + "] mismatch", outputArray[ j ],
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actualOutput[ j ]);
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}
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// verify proper behavior with negative offset
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stream = new ByteArrayOutputStream();
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HexDump.dump(testArray, 0xFF000000, stream, 0);
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outputArray = new byte[ 16 * (73 + HexDump.EOL.length()) ];
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for (int j = 0; j < 16; j++)
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{
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int offset = (73 + HexDump.EOL.length()) * j;
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outputArray[ offset++ ] = ( byte ) 'F';
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outputArray[ offset++ ] = ( byte ) 'F';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) ' ';
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toHex(j);
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outputArray[ offset++ ] = ( byte ) toHex(k);
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outputArray[ offset++ ] = ( byte ) ' ';
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}
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for (int k = 0; k < 16; k++)
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{
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outputArray[ offset++ ] = ( byte ) toAscii((j * 16) + k);
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}
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System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
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HexDump.EOL.getBytes().length);
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}
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actualOutput = stream.toByteArray();
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assertEquals("array size mismatch", outputArray.length,
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actualOutput.length);
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for (int j = 0; j < outputArray.length; j++)
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{
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assertEquals("array[ " + j + "] mismatch", outputArray[ j ],
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actualOutput[ j ]);
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}
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// verify proper behavior with non-zero index
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stream = new ByteArrayOutputStream();
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HexDump.dump(testArray, 0x10000000, stream, 0x81);
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outputArray = new byte[ (8 * (73 + HexDump.EOL.length())) - 1 ];
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for (int j = 0; j < 8; j++)
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{
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int offset = (73 + HexDump.EOL.length()) * j;
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outputArray[ offset++ ] = ( byte ) '1';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) '0';
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outputArray[ offset++ ] = ( byte ) toHex(j + 8);
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outputArray[ offset++ ] = ( byte ) '1';
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outputArray[ offset++ ] = ( byte ) ' ';
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for (int k = 0; k < 16; k++)
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{
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int index = 0x81 + (j * 16) + k;
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if (index < 0x100)
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{
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outputArray[ offset++ ] = ( byte ) toHex(index / 16);
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outputArray[ offset++ ] = ( byte ) toHex(index);
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}
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else
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{
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outputArray[ offset++ ] = ( byte ) ' ';
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outputArray[ offset++ ] = ( byte ) ' ';
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}
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outputArray[ offset++ ] = ( byte ) ' ';
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}
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for (int k = 0; k < 16; k++)
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{
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int index = 0x81 + (j * 16) + k;
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if (index < 0x100)
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{
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outputArray[ offset++ ] = ( byte ) toAscii(index);
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}
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}
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System.arraycopy(HexDump.EOL.getBytes(), 0, outputArray, offset,
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HexDump.EOL.getBytes().length);
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}
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actualOutput = stream.toByteArray();
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assertEquals("array size mismatch", outputArray.length,
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actualOutput.length);
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for (int j = 0; j < outputArray.length; j++)
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{
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assertEquals("array[ " + j + "] mismatch", outputArray[ j ],
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actualOutput[ j ]);
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}
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// verify proper behavior with negative index
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try
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{
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HexDump.dump(testArray, 0x10000000, new ByteArrayOutputStream(),
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-1);
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fail("should have caught ArrayIndexOutOfBoundsException on negative index");
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}
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catch (ArrayIndexOutOfBoundsException ignored_exception)
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{
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// as expected
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}
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// verify proper behavior with index that is too large
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try
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{
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HexDump.dump(testArray, 0x10000000, new ByteArrayOutputStream(),
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testArray.length);
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fail("should have caught ArrayIndexOutOfBoundsException on large index");
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}
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catch (ArrayIndexOutOfBoundsException ignored_exception)
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{
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// as expected
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}
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// verify proper behavior with null stream
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try
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{
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HexDump.dump(testArray, 0x10000000, null, 0);
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fail("should have caught IllegalArgumentException on negative index");
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}
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catch (IllegalArgumentException ignored_exception)
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{
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// as expected
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}
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}
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public void testToHex()
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throws Exception
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{
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assertEquals( "000A", HexDump.toHex((short)0xA));
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assertEquals( "0A", HexDump.toHex((byte)0xA));
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assertEquals( "0000000A", HexDump.toHex((int)0xA));
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assertEquals( "FFFF", HexDump.toHex((short)0xFFFF));
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}
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private char toAscii(final int c)
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{
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char rval = '.';
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if ((c >= 32) && (c <= 126))
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{
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rval = ( char ) c;
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}
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return rval;
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}
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/**
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* main method to run the unit tests
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*
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* @param ignored_args
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*/
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public static void main(String [] ignored_args)
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{
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System.out.println("Testing util.HexDump functionality");
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junit.textui.TestRunner.run(TestHexDump.class);
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}
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}
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