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      1 /*
      2  *  Licensed to the Apache Software Foundation (ASF) under one or more
      3  *  contributor license agreements.  See the NOTICE file distributed with
      4  *  this work for additional information regarding copyright ownership.
      5  *  The ASF licenses this file to You under the Apache License, Version 2.0
      6  *  (the "License"); you may not use this file except in compliance with
      7  *  the License.  You may obtain a copy of the License at
      8  *
      9  *     http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  */
     17 
     18 package org.apache.harmony.tests.java.net;
     19 
     20 import java.net.Inet4Address;
     21 import java.net.Inet6Address;
     22 import java.net.InetAddress;
     23 import java.net.InterfaceAddress;
     24 import java.net.NetworkInterface;
     25 import java.util.Enumeration;
     26 import java.util.List;
     27 
     28 import junit.framework.TestCase;
     29 
     30 public class InterfaceAddressTest extends TestCase {
     31     private InterfaceAddress interfaceAddr;
     32 
     33     private InterfaceAddress anotherInterfaceAddr;
     34 
     35     /**
     36      * java.net.InterfaceAddress.hashCode()
     37      * @since 1.6
     38      */
     39     public void test_hashCode() {
     40         // RI may fail on this when both broadcast addresses are null
     41         if (interfaceAddr != null) {
     42             assertEquals(anotherInterfaceAddr, interfaceAddr);
     43             assertEquals(anotherInterfaceAddr.hashCode(), interfaceAddr
     44                     .hashCode());
     45         }
     46     }
     47 
     48     /**
     49      * java.net.InterfaceAddress.equals(Object)
     50      * @since 1.6
     51      */
     52     public void test_equals_LObject() {
     53         // RI may fail on this when both broadcast addresses are null
     54         if (interfaceAddr != null) {
     55             assertFalse(interfaceAddr.equals(null));
     56             assertFalse(interfaceAddr.equals(new Object()));
     57 
     58             assertTrue(interfaceAddr.equals(anotherInterfaceAddr));
     59             assertNotSame(anotherInterfaceAddr, interfaceAddr);
     60         }
     61     }
     62 
     63     /**
     64      * java.net.InterfaceAddress.toString()
     65      * @since 1.6
     66      */
     67     public void test_toString() {
     68         if (interfaceAddr != null) {
     69             assertNotNull(interfaceAddr.toString());
     70             assertEquals(anotherInterfaceAddr.toString(), interfaceAddr
     71                     .toString());
     72             assertTrue(interfaceAddr.toString().contains("/"));
     73             assertTrue(interfaceAddr.toString().contains("["));
     74             assertTrue(interfaceAddr.toString().contains("]"));
     75         }
     76     }
     77 
     78     /**
     79      * java.net.InterfaceAddress.getAddress()
     80      * @since 1.6
     81      */
     82     public void test_getAddress() {
     83         if (interfaceAddr != null) {
     84             InetAddress addr1 = interfaceAddr.getAddress();
     85             assertNotNull(addr1);
     86             InetAddress addr2 = anotherInterfaceAddr.getAddress();
     87             assertNotNull(addr2);
     88             assertEquals(addr2, addr1);
     89         }
     90     }
     91 
     92     /**
     93      * java.net.InterfaceAddress.getBroadcast()
     94      * @since 1.6
     95      */
     96     public void test_getBroadcast() {
     97         if (interfaceAddr != null) {
     98             InetAddress addr = interfaceAddr.getAddress();
     99             InetAddress addr1 = interfaceAddr.getBroadcast();
    100             InetAddress addr2 = anotherInterfaceAddr.getBroadcast();
    101             if (addr instanceof Inet4Address) {
    102                 assertEquals(addr2, addr1);
    103             } else if (addr instanceof Inet6Address) {
    104                 assertNull(addr1);
    105                 assertNull(addr2);
    106             }
    107         }
    108     }
    109 
    110     /**
    111      * java.net.InterfaceAddress.getNetworkPrefixLength()
    112      * @since 1.6
    113      */
    114     public void test_getNetworkPrefixLength() {
    115         if (interfaceAddr != null) {
    116             short prefix1 = interfaceAddr.getNetworkPrefixLength();
    117             short prefix2 = anotherInterfaceAddr.getNetworkPrefixLength();
    118             assertEquals(prefix2, prefix1);
    119         }
    120     }
    121 
    122     @Override
    123     protected void setUp() throws Exception {
    124         super.setUp();
    125 
    126         Enumeration<NetworkInterface> netifs = NetworkInterface
    127                 .getNetworkInterfaces();
    128         NetworkInterface theInterface = null;
    129         if (netifs != null) {
    130             while (netifs.hasMoreElements()) {
    131                 theInterface = netifs.nextElement();
    132                 if (theInterface != null) {
    133                     List<InterfaceAddress> addrs = theInterface
    134                             .getInterfaceAddresses();
    135                     if (!(addrs == null || addrs.isEmpty())) {
    136                         interfaceAddr = addrs.get(0);
    137                         break;
    138                     }
    139                 }
    140             }
    141         }
    142 
    143         // get another InterfaceAddress object if the interfaceAddr exists. It
    144         // equals to interfaceAddr, but is not the same one.
    145         if (theInterface != null && interfaceAddr != null) {
    146             Enumeration<InetAddress> addresses = theInterface
    147                     .getInetAddresses();
    148             if (addresses != null && addresses.hasMoreElements()) {
    149                 NetworkInterface anotherNetworkInter = NetworkInterface
    150                         .getByInetAddress(addresses.nextElement());
    151                 anotherInterfaceAddr = anotherNetworkInter
    152                         .getInterfaceAddresses().get(0);
    153             }
    154         }
    155     }
    156 
    157     @Override
    158     protected void tearDown() throws Exception {
    159         interfaceAddr = null;
    160         anotherInterfaceAddr = null;
    161         super.tearDown();
    162     }
    163 
    164 }
    165