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+
+/* ====================================================================
+ * 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 acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ * "Apache POI" 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",
+ * "Apache POI", nor may "Apache" appear in their name, 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.poi.util;
+
+import junit.framework.*;
+
+import java.io.*;
+
+/**
+ * @author Marc Johnson (mjohnson at apache dot org)
+ */
+
+public class TestHexDump
+ extends TestCase
+{
+
+ /**
+ * Creates new TestHexDump
+ *
+ * @param name
+ */
+
+ public TestHexDump(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 util.HexDump functionality");
+ junit.textui.TestRunner.run(TestHexDump.class);
+ }
+}
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