address = InetAddress.getByName("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
    assertTrue(InetAddresses.isMaximum(address));
  }

  public void testIncrementIPv4() throws UnknownHostException {
    InetAddress address_66_0 = InetAddress.getByName("172.24.66.0");
    InetAddress address_66_255 = InetAddress.getByName("172.24.66.255");
    InetAddress address_67_0 = InetAddress.getByName("172.24.67.0");

   *
   * @param address the InetAddress to decrement
   * @return a new InetAddress that is one less than the passed in address
   * @throws IllegalArgumentException if InetAddress is at the beginning of its range
   * @since 18.0
   */
  public static InetAddress decrement(InetAddress address) {
    byte[] addr = address.getAddress();
    int i = addr.length - 1;
    while (i >= 0 && addr[i] == (byte) 0x00) {

   *
   * @param address the InetAddress to decrement
   * @return a new InetAddress that is one less than the passed in address
   * @throws IllegalArgumentException if InetAddress is at the beginning of its range
   * @since 18.0
   */
  public static InetAddress decrement(InetAddress address) {
    byte[] addr = address.getAddress();
    int i = addr.length - 1;
    while (i >= 0 && addr[i] == (byte) 0x00) {

 */
package okhttp3

import assertk.assertThat
import assertk.assertions.containsExactly
import java.net.InetAddress
import java.net.UnknownHostException
import okio.Buffer

class FakeDns : Dns {
  private val hostAddresses: MutableMap<String, List<InetAddress>> = mutableMapOf()
  private val requestedHosts: MutableList<String> = mutableListOf()

          when {
            domainName.equals(HOSTNAME_THAT_ONLY_THE_PROXY_KNOWS, ignoreCase = true) -> {
              InetAddress.getByName("localhost")
            }
            else -> InetAddress.getByName(domainName)
          }
        }

        else -> throw ProtocolException("unsupported address type: $addressType")
      }

  override fun createSocket(
    host: String,
    port: Int,
    localAddress: InetAddress,
    localPort: Int,
  ): Socket {
    val socket = delegate.createSocket(host, port, localAddress, localPort)
    return configureSocket(socket)
  }

  @Throws(IOException::class)
  override fun createSocket(
    host: InetAddress,
    port: Int,
  ): Socket {
    val socket = delegate.createSocket(host, port)

        /*
         * Determine the InetAddress of the local interface
         * if one was not specified.
         */
        InetAddress localInetAddress = tc.getConfig().getNetbiosLocalAddress();
        if ( localInetAddress == null ) {
            try {
                localInetAddress = InetAddress.getLocalHost();
            }
            catch ( UnknownHostException uhe ) {

    private val localAddress: InetAddress,
    private val localPort: Int,
    private val remoteAddress: InetAddress = localAddress,
    private val remotePort: Int = 1234,
  ) : Socket() {
    override fun getInetAddress() = remoteAddress

    override fun getLocalAddress() = localAddress

    override fun getLocalPort() = localPort

    override fun getPort() = remotePort
  }

      }
    }

    return lookupHttps(hostname)
  }

  @Throws(UnknownHostException::class)
  private fun lookupHttps(hostname: String): List<InetAddress> {
    val networkRequests = ArrayList<Call>(2)
    val failures = ArrayList<Exception>(2)
    val results = ArrayList<InetAddress>(5)

    buildRequest(hostname, networkRequests, results, failures, DnsRecordCodec.TYPE_A)

    if (includeIPv6) {

      result.close();
      throw e;
    }
    return result;
  }

  @Override public Socket createSocket(
      String host, int port, InetAddress localHost, int localPort) throws IOException {
    return createSocket(host, port);
  }

  @Override public Socket createSocket(InetAddress host, int port) throws IOException {
    Socket result = createSocket();

    try {
      result.connect(new InetSocketAddress(host, port));