/**
   * Don't call through to the proxy selector if we don't have a host name.
   * https://github.com/square/okhttp/issues/5770
   */
  @Test fun proxySelectorNotCalledForNullHost() {
    // The string '>' is okay in a hostname in HttpUrl, which does very light hostname validation.
    // It is not okay in URI, and so it's stripped and we get a URI with a null host.
    val bogusHostname = ">"
    val address =

            writer.write("1.2.3.4 HOST1\n");
            writer.write("192.168.1.100 HOST2\n");
            writer.write("255.255.255.255 HOST3\n");
            writer.write("10.0.0.1 HOST4\n");
        }

        when(mockConfig.getLmHostsFileName()).thenReturn(lmhostsFile.getAbsolutePath());

        // Use getByName to trigger populate
        assertNotNull(lmhosts.getByName("HOST1", mockContext));

func isHostIP(ipAddress string) bool {
	host, _, err := net.SplitHostPort(ipAddress)
	if err != nil {
		host = ipAddress
	}
	// Strip off IPv6 zone information.
	if i := strings.Index(host, "%"); i > -1 {
		host = host[:i]
	}
	return net.ParseIP(host) != nil
}

// extractHostPort - extracts host/port from many address formats

    NetbiosAddress[] getNbtAllByAddress(String host, int type, String scope) throws UnknownHostException;

    /**
     * Retrieve all addresses of a host by it's address. NetBIOS hosts can
     * have many names for a given IP address. The name and IP address make the
     * NetBIOS address. This provides a way to retrieve the other names for a
     * host with the same IP address.
     *
     * @param host

    void testGetInetAddressArray() throws UnknownHostException {
        testProperties.setProperty("test.hosts", "localhost,127.0.0.1");
        InetAddress[] defaultArray = { InetAddress.getByName("0.0.0.0") };

        InetAddress[] result = Config.getInetAddressArray(testProperties, "test.hosts", ",", defaultArray);
        assertEquals(2, result.length);
        assertEquals(InetAddress.getByName("localhost"), result[0]);

				t.Errorf("shouldConnect(%q, %q) != shouldConnect(%q, %q)", hosts[x], hosts[y], hosts[y], hosts[x])
			}
			if c.shouldConnect() {
				should++
			}
		}
		if should < 10 {
			t.Errorf("host %q only connects to %d hosts", hosts[x], should)
		}
		t.Logf("host %q should connect to %d hosts", hosts[x], should)
	}
}

		Timeout: 5 * time.Second,
	}
	var res TestGrid
	res.Hosts = hosts
	ready := make(chan struct{})
	ctx, cancel := context.WithCancel(context.Background())
	res.cancel = cancel
	for i, host := range hosts {
		manager, err := NewManager(ctx, ManagerOptions{
			Dialer: ConnectWS(dialer.DialContext,
				dummyNewToken,
				nil),
			Local:        host,
			Hosts:        hosts,
			AuthFn:       dummyNewToken,

			if endpoint.IsLocal && endpoint.Host != "" {
				u := &url.URL{
					Scheme: endpoint.Scheme,
					Host:   endpoint.Host,
				}
				return u.String()
			}
		}
	}
	host := globalMinioHost
	if host == "" {
		host = sortIPs(localIP4.ToSlice())[0]
	}
	return fmt.Sprintf("%s://%s", getURLScheme(globalIsTLS), net.JoinHostPort(host, globalMinioPort))
}

        return CLIENT.getAllByName(new Name(host, type, scope), svr);
    }

    /**
     * Retrieve all addresses of a host by it's address. NetBIOS hosts can
     * have many names for a given IP address. The name and IP address make the
     * NetBIOS address. This provides a way to retrieve the other names for a
     * host with the same IP address.
     *
     * @param host hostname to lookup all addresses for

    private fun buildBootstrapClient(builder: Builder): Dns {
      val hosts = builder.bootstrapDnsHosts

      return if (hosts != null) {
        BootstrapDns(builder.url!!.host, hosts)
      } else {
        builder.systemDns
      }
    }

    internal fun isPrivateHost(host: String): Boolean = PublicSuffixDatabase.get().getEffectiveTldPlusOne(host) == null
  }