| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2003 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 |
| } |
| |
| // verify proper behaviour with a 0 length dump on 0 length dataset |
| HexDump.dump(new byte[0], 0, new ByteArrayOutputStream(), 0, 0); |
| } |
| |
| public void testToHex() |
| throws Exception |
| { |
| assertEquals( "000A", HexDump.toHex((short)0xA)); |
| assertEquals( "0A", HexDump.toHex((byte)0xA)); |
| assertEquals( "0000000A", HexDump.toHex((int)0xA)); |
| |
| assertEquals( "FFFF", HexDump.toHex((short)0xFFFF)); |
| |
| } |
| |
| 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); |
| } |
| } |