subnetipv4test.java

mina是以Java实现的一个开源的网络程序框架

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 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
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 *  specific language governing permissions and limitations
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package org.apache.mina.filter.firewall;

import java.net.InetAddress;
import java.net.UnknownHostException;

import junit.framework.TestCase;

/**
 * TODO Add documentation
 * 
 * @author The Apache MINA Project ([e-mail])
 * @version $Rev$, $Date$
 */
public class SubnetIPv4Test extends TestCase {

	public void test24() throws UnknownHostException {
		InetAddress a = InetAddress.getByName("127.2.3.0");
		InetAddress b = InetAddress.getByName("127.2.3.4");
		InetAddress c = InetAddress.getByName("127.2.3.255");
		InetAddress d = InetAddress.getByName("127.2.4.4");
		
		Subnet mask = new Subnet(a, 24);
		
		assertTrue(mask.inSubnet(a));
		assertTrue(mask.inSubnet(b));
		assertTrue(mask.inSubnet(c));
		assertFalse(mask.inSubnet(d));
	}

	public void test16() throws UnknownHostException {
		InetAddress a = InetAddress.getByName("127.2.0.0");
		InetAddress b = InetAddress.getByName("127.2.3.4");
		InetAddress c = InetAddress.getByName("127.2.129.255");
		InetAddress d = InetAddress.getByName("127.3.4.4");
		
		Subnet mask = new Subnet(a, 16);
		
		assertTrue(mask.inSubnet(a));
		assertTrue(mask.inSubnet(b));
		assertTrue(mask.inSubnet(c));
		assertFalse(mask.inSubnet(d));
	}
	
	public void testSingleIp() throws UnknownHostException {
		InetAddress a = InetAddress.getByName("127.2.3.4");
		InetAddress b = InetAddress.getByName("127.2.3.3");
		InetAddress c = InetAddress.getByName("127.2.3.255");
		InetAddress d = InetAddress.getByName("127.2.3.0");
		
		Subnet mask = new Subnet(a, 32);
		
		assertTrue(mask.inSubnet(a));
		assertFalse(mask.inSubnet(b));
		assertFalse(mask.inSubnet(c));
		assertFalse(mask.inSubnet(d));
	}
	
	public void testToString() throws UnknownHostException {
		InetAddress a = InetAddress.getByName("127.2.3.0");
		Subnet mask = new Subnet(a, 24);
		
		assertEquals("127.2.3.0/24", mask.toString());
	}

	public void testToStringLiteral() throws UnknownHostException {
		InetAddress a = InetAddress.getByName("localhost");
		Subnet mask = new Subnet(a, 32);
		
		assertEquals("127.0.0.1/32", mask.toString());
	}
	
	
	public void testEquals() throws UnknownHostException {
		Subnet a = new Subnet(InetAddress.getByName("127.2.3.4"), 32);
		Subnet b = new Subnet(InetAddress.getByName("127.2.3.4"), 32);
		Subnet c = new Subnet(InetAddress.getByName("127.2.3.5"), 32);
		Subnet d = new Subnet(InetAddress.getByName("127.2.3.5"), 24);
		
		assertTrue(a.equals(b));
		assertFalse(a.equals(c));
		assertFalse(a.equals(d));
		assertFalse(a.equals(null));
	}
}