base16test.java

DNS Java 是java实现的DNS

// -*- Java -*-
//
// Copyright (c) 2005, Matthew J. Rutherford <[e-mail]>
// Copyright (c) 2005, University of Colorado at Boulder
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// 
// * Redistributions of source code must retain the above copyright
//   notice, this list of conditions and the following disclaimer.
// 
// * 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.
// 
// * Neither the name of the University of Colorado at Boulder nor the
//   names of its contributors may be used to endorse or promote
//   products derived from this software without specific prior written
//   permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS 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 COPYRIGHT
// OWNER OR 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.
//
package org.xbill.DNS.utils;

import junit.framework.TestCase;

public class base16Test extends TestCase
{
    public base16Test( String name )
    {
	super(name);
    }

    public void test_toString_emptyArray()
    {
	String out = base16.toString( new byte[ 0 ] );
	assertEquals( "", out );
    }

    public void test_toString_singleByte1()
    {
	byte[] data = { (byte)1 };
	String out = base16.toString( data );
	assertEquals( "01", out );
    }

    public void test_toString_singleByte2()
    {
	byte[] data = { (byte)16 };
	String out = base16.toString( data );
	assertEquals( "10", out );
    }

    public void test_toString_singleByte3()
    {
	byte[] data = { (byte)255 };
	String out = base16.toString( data );
	assertEquals( "FF", out );
    }

    public void test_toString_array1()
    {
	byte[] data = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
	String out = base16.toString( data );
	assertEquals( "0102030405060708090A0B0C0D0E0F", out );
    }

    public void test_fromString_emptyString()
    {
	String data = "";
	byte[] out = base16.fromString( data );
	assertEquals( 0, out.length );
    }

    public void test_fromString_invalidStringLength()
    {
	String data = "1";
	byte[] out = base16.fromString( data );
	assertNull( out );
    }

    public void test_fromString_nonHexChars()
    {
	String data = "GG";
	byte[] out = base16.fromString( data );
	/*
	 * the output is basically encoded as (-1<<4) + -1, not sure
	 * we want an assertion for this.
	 */
    }

    public void test_fromString_normal()
    {
	String data = "0102030405060708090A0B0C0D0E0F";
	byte[] out = base16.fromString( data );
	byte[] exp = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
	assertEquals( exp.length, out.length );
	for( int i=0; i<exp.length; ++i ){
	    assertEquals( exp[i], out[i] );
	}
    }
}