packetcable-driver/src/test/java/org/umu/cops/stack/COPSIpv6AddressTest.java

   1 package org.umu.cops.stack;
   2
   3 import org.junit.Assert;
   4 import org.junit.Test;
   5
   6 import java.net.Inet4Address;
   7 import java.net.Inet6Address;
   8 import java.net.InetAddress;
   9 import java.net.UnknownHostException;
  10
  11 /**
  12  * Tests for the COPSIpv6Address class.
  13  */
  14 public class COPSIpv6AddressTest {
  15
  16     @Test(expected = UnknownHostException.class)
  17     public void badHost() throws Exception {
  18         new COPSIpv6Address("foo");
  19     }
  20
  21     @Test
  22     public void localhost() throws Exception {
  23         final COPSIpv6Address address = new COPSIpv6Address("localhost");
  24         Assert.assertEquals(16, address.getDataLength());
  25         Assert.assertArrayEquals(getLocalhostIpv6Address(), address.getAddressBytes());
  26         Assert.assertEquals("localhost", address.getIpName());
  27     }
  28
  29     @Test
  30     public void addrBytes() throws Exception {
  31         final byte[] addr = getLocalhostIpv6Address();
  32         final COPSIpv6Address address = new COPSIpv6Address(addr);
  33         Assert.assertEquals(16, address.getDataLength());
  34         Assert.assertArrayEquals(addr, address.getAddressBytes());
  35         Assert.assertEquals("localhost", address.getIpName());
  36     }
  37
  38     private byte[] getLocalhostIpv6Address() throws UnknownHostException {
  39         final InetAddress[] addrs = Inet4Address.getAllByName("localhost");
  40         for (final InetAddress addr : addrs) {
  41             if (addr instanceof Inet6Address) {
  42                 return addr.getAddress();
  43             }
  44         }
  45         throw new UnknownHostException("InetAddress could not be found");
  46     }
  47 }