}

  public void testForStringIPv4NonAsciiInput() throws UnknownHostException {
    String ipStr = "૧૯૨.૧૬૮.૦.૧"; // 192.168.0.1 in Gujarati digits
    // Shouldn't hit DNS, because it's an IP string literal.
    InetAddress ipv4Addr;
    try {
      ipv4Addr = InetAddress.getByName(ipStr);
    } catch (UnknownHostException e) {
      // OK: this is probably Android, which is stricter.
      return;
    }

    return this
  }

  @Throws(UnknownHostException::class)
  fun lookup(
    hostname: String,
    index: Int,
  ): InetAddress {
    return hostAddresses[hostname]!![index]
  }

  @Throws(UnknownHostException::class)
  override fun lookup(hostname: String): List<InetAddress> {
    requestedHosts.add(hostname)
    return hostAddresses[hostname] ?: throw UnknownHostException()
  }

    unknownHostException.initCause(failure)

    for (i in 1 until failures.size) {
      unknownHostException.addSuppressed(failures[i])
    }

    throw unknownHostException
  }

  private fun getCacheOnlyResponse(request: Request): Response? {
    if (client.cache != null) {
      try {
        // Use the cache without hitting the network first

      client.newCall(request).execute()
    } catch (uhe: UnknownHostException) {
      // expected
    }

    val logs = ShadowLog.getLogsForTag("testHttpLoggingInterceptor")
    assertThat(logs.map { it.type }).containsOnly(Log.INFO)
    assertThat(logs.map { it.msg }).containsExactly(
      "--> GET http://google.com/robots.txt",
      "<-- HTTP FAILED: java.net.UnknownHostException: shortcircuit",
    )

 * limitations under the License.
 */
package okhttp3.android

import assertk.assertFailure
import assertk.assertions.hasMessage
import assertk.assertions.isInstanceOf
import java.net.UnknownHostException
import okhttp3.AsyncDns
import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.annotation.Config
import org.robolectric.shadow.api.Shadow

import java.net.InetAddress;
import java.net.URLDecoder;
import java.net.UnknownHostException;

import org.apache.http.conn.DnsResolver;

public class IdnDnsResolver implements DnsResolver {

    protected int flag = 0;

    protected String encoding = "UTF-8";

    @Override
    public InetAddress[] resolve(final String host) throws UnknownHostException {
        return InetAddress.getAllByName(toAscii(host));
    }

import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Dns

/**
 * Internal Bootstrap DNS implementation for handling initial connection to DNS over HTTPS server.
 *
 * Returns hardcoded results for the known host.
 */
internal class BootstrapDns(
  private val dnsHostname: String,
  private val dnsServers: List<InetAddress>,
) : Dns {
  @Throws(UnknownHostException::class)

    require(flags shr 15 != 0) { "not a response" }

    val responseCode = flags and 0xf

    if (responseCode == NXDOMAIN) {
      throw UnknownHostException("$hostname: NXDOMAIN")
    } else if (responseCode == SERVFAIL) {
      throw UnknownHostException("$hostname: SERVFAIL")
    }

    val questionCount = buf.readShort().toInt() and 0xffff
    val answerCount = buf.readShort().toInt() and 0xffff

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Cache
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request
import okio.Path.Companion.toPath
import okio.fakefilesystem.FakeFileSystem

import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import assertk.assertions.isNotEmpty
import assertk.assertions.isNull
import assertk.fail
import java.net.InetAddress
import java.net.UnknownHostException
import java.util.concurrent.CountDownLatch
import mockwebserver3.MockResponse
import mockwebserver3.junit4.MockWebServerRule
import okhttp3.AsyncDns
import okhttp3.HttpUrl.Companion.toHttpUrl