001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    package org.apache.commons.net;
019    
020    import org.apache.commons.net.util.SubnetUtils;
021    import org.apache.commons.net.util.SubnetUtils.SubnetInfo;
022    
023    import junit.framework.TestCase;
024    
025    public class SubnetUtilsTest extends TestCase {
026        
027        public void testParseSimpleNetmask() {
028            final String address = "192.168.0.1";
029            final String masks[] = new String[] { "255.0.0.0", "255.255.0.0", "255.255.255.0", "255.255.255.248"};
030            final String bcastAddresses[] = new String[] { "192.255.255.255", "192.168.255.255", "192.168.0.255", "192.168.0.7"};
031            final String lowAddresses[] = new String[] { "192.0.0.1", "192.168.0.1", "192.168.0.1", "192.168.0.1" };
032            final String highAddresses[] = new String[] { "192.255.255.254", "192.168.255.254", "192.168.0.254", "192.168.0.6" };
033            final String networkAddresses[] = new String[] { "192.0.0.0", "192.168.0.0", "192.168.0.0", "192.168.0.0" };
034            final String cidrSignatures[] = new String[] { "192.168.0.1/8", "192.168.0.1/16", "192.168.0.1/24", "192.168.0.1/29" };
035            final int usableAddresses[] = new int[] { 16777214, 65534, 254, 6 };
036            
037            for (int i = 0; i < masks.length; ++i) {
038                SubnetUtils utils = new SubnetUtils(address, masks[i]);
039                SubnetInfo info = utils.getInfo();
040                assertEquals(bcastAddresses[i], info.getBroadcastAddress());
041                assertEquals(cidrSignatures[i], info.getCidrSignature());
042                assertEquals(lowAddresses[i], info.getLowAddress());
043                assertEquals(highAddresses[i], info.getHighAddress());
044                assertEquals(networkAddresses[i], info.getNetworkAddress());
045                assertEquals(usableAddresses[i], info.getAddressCount());
046            }
047        }
048        
049        public void testAddresses() {
050            SubnetUtils utils = new SubnetUtils("192.168.0.1/29");
051            SubnetInfo info = utils.getInfo();
052            assertTrue(info.isInRange("192.168.0.1"));
053            // We dont count the broadcast address as usable
054            assertFalse(info.isInRange("192.168.0.7"));
055            assertFalse(info.isInRange("192.168.0.8"));
056            assertFalse(info.isInRange("10.10.2.1"));
057            assertFalse(info.isInRange("192.168.1.1"));
058            assertFalse(info.isInRange("192.168.0.255"));
059        }
060    }