* the format specified by RFC 3986 section 3.2.2.
   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.
   *
   * <p>This method is the inverse of {@link InetAddresses#toUriString(java.net.InetAddress)}.
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth

        InetAddresses.toAddrString(InetAddresses.forString("2001:0:0:4:5:6:7:8")));
    assertEquals(
        "2001:0:3:4:5:6:7:8",
        InetAddresses.toAddrString(InetAddresses.forString("2001:0:3:4:5:6:7:8")));
    assertEquals(
        "0:0:3::ffff", InetAddresses.toAddrString(InetAddresses.forString("0:0:3:0:0:0:0:ffff")));
    assertEquals(
        "::4:0:0:0:ffff",

        InetAddresses.toAddrString(InetAddresses.forString("2001:0:0:4:5:6:7:8")));
    assertEquals(
        "2001:0:3:4:5:6:7:8",
        InetAddresses.toAddrString(InetAddresses.forString("2001:0:3:4:5:6:7:8")));
    assertEquals(
        "0:0:3::ffff", InetAddresses.toAddrString(InetAddresses.forString("0:0:3:0:0:0:0:ffff")));
    assertEquals(
        "::4:0:0:0:ffff",

   */
  private var dnsResults = listOf<InetAddress>()

  @BeforeEach
  internal fun setUp() {
    val inetAddresses = InetAddress.getAllByName("localhost")
    localhostIpv4 = inetAddresses.firstOrNull { it is Inet4Address }
      ?: throw TestAbortedException()
    localhostIpv6 = inetAddresses.firstOrNull { it is Inet6Address }
      ?: throw TestAbortedException()

    serverIpv4 = MockWebServer()

    // use InetAddresses.toUriString to convert the result to a string in
    // canonical form.
    InetAddress addr = null;
    try {
      addr = InetAddresses.forString(host);
    } catch (IllegalArgumentException e) {
      // It is not an IPv4 or IPv6 literal
    }

    if (addr != null) {
      return new HostSpecifier(InetAddresses.toUriString(addr));
    }

import java.text.ParseException;
import junit.framework.TestCase;

/**
 * {@link TestCase} for {@link HostSpecifier}. This is a relatively cursory test, as HostSpecifier
 * is a thin wrapper around {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
 * those classes explore numerous corner cases. The intent here is to confirm that everything is
 * wired up properly.
 *
 * @author Craig Berry
 */

import java.text.ParseException;
import junit.framework.TestCase;

/**
 * {@link TestCase} for {@link HostSpecifier}. This is a relatively cursory test, as HostSpecifier
 * is a thin wrapper around {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
 * those classes explore numerous corner cases. The intent here is to confirm that everything is
 * wired up properly.
 *
 * @author Craig Berry
 */

   *
   * <p>Note that this parser identifies IPv6 literals solely based on the presence of a colon. To
   * perform actual validation of IP addresses, see the {@link InetAddresses#forString(String)}
   * method.
   *
   * @return {@code this}, to enable chaining of calls.
   * @throws IllegalArgumentException if bracketless IPv6 is detected.
   */
  @CanIgnoreReturnValue