dclasstest.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
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// (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;

import junit.framework.TestCase;

public class DClassTest extends TestCase
{
    public void test_string()
    {
	// a regular one
	assertEquals("IN", DClass.string(DClass.IN));

	// one with an alias
	assertEquals("CH", DClass.string(DClass.CH));

	// one that doesn't exist
	assertTrue(DClass.string(20).startsWith("CLASS"));

	try {
	    DClass.string(-1);
	    fail("IllegalArgumentException not thrown");
	}
	catch( IllegalArgumentException e ){
	}
	
	//  (max is 0xFFFF)
	try {
	    DClass.string(0x10000);
	    fail("IllegalArgumentException not thrown");
	}
	catch( IllegalArgumentException e ){
	}
    }

    public void test_value()
    {
	// regular one
	assertEquals(DClass.NONE, DClass.value("NONE"));

	// one with alias
	assertEquals(DClass.HS, DClass.value("HS"));
	assertEquals(DClass.HS, DClass.value("HESIOD"));

	// one thats undefined but within range
	assertEquals(21, DClass.value("CLASS21"));

	// something that unknown
	assertEquals(-1, DClass.value("THIS IS DEFINITELY UNKNOWN"));

	// empty string
	assertEquals(-1, DClass.value(""));
    }
}