var client: Call.Factory? = null

  override fun run() {
    LoggingUtil.configureLogging(debug = verbose, showHttp2Frames = showHttp2Frames, sslDebug = sslDebug)

    commonRun()
  }

  fun createRequest(): Request = commonCreateRequest()

  fun createClient(): Call.Factory {
    val builder = OkHttpClient.Builder()

    headerValue = null,
  )

internal fun CacheControl.Builder.commonNoCache() =
  apply {
    this.noCache = true
  }

internal fun CacheControl.Builder.commonNoStore() =
  apply {
    this.noStore = true
  }

internal fun CacheControl.Builder.commonOnlyIfCached() =
  apply {
    this.onlyIfCached = true
  }

internal fun CacheControl.Builder.commonNoTransform() =
  apply {

   */
  fun enqueue(responseCallback: Callback)

  /** Cancels the request, if possible. Requests that are already complete cannot be canceled. */
  fun cancel()

  /**
   * Returns true if this call has been either [executed][execute] or [enqueued][enqueue]. It is an
   * error to execute a call more than once.
   */
  fun isExecuted(): Boolean

  fun isCanceled(): Boolean

  /**

   * longer usable by the current type's members.
   */
  fun <T> withTypeHint(block: () -> T): T {
    typeHintStack.add(null)
    try {
      return block()
    } finally {
      typeHintStack.removeAt(typeHintStack.size - 1)
    }
  }

  fun readBoolean(): Boolean {
    if (bytesLeft != 1L) throw ProtocolException("unexpected length: $bytesLeft at $this")

import kotlin.time.Duration.Companion.nanoseconds
import okio.buffer
import okio.source
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.assertThrows

class UtilTest {
  @Test
  fun socketIsHealthy() {
    val localhost = InetAddress.getLoopbackAddress()
    val serverSocket = ServerSocket(0, 1, localhost)

    val socket = Socket()
    socket.connect(serverSocket.localSocketAddress)

    var lastSocket: Socket? = null

    override fun connectionAcquired(
      call: Call,
      connection: Connection,
    ) {
      lastSocket = connection.socket()
    }

    override fun requestHeadersStart(call: Call) {
      if (shouldClose) {
        lastSocket!!.close()
      }
    }
  }

  @Test
  fun socketFailureOnLargeRequestHeaders() {
    server.enqueue(MockResponse())

      }
    }
  }

  private fun ResponseBody.isEventStream(): Boolean {
    val contentType = contentType() ?: return false
    return contentType.type == "text" && contentType.subtype == "event-stream"
  }

  override fun onFailure(
    call: Call,
    e: IOException,
  ) {
    listener.onFailure(this, e, null)
  }

  override fun request(): Request = request

  override fun cancel() {

class DnsRecordCodecTest {
  @Test
  fun testGoogleDotComEncoding() {
    val encoded = encodeQuery("google.com", TYPE_A)
    assertThat(encoded).isEqualTo("AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ")
  }

  private fun encodeQuery(
    host: String,
    type: Int,
  ): String = DnsRecordCodec.encodeQuery(host, type).base64Url().replace("=", "")

  @Test
  fun testGoogleDotComEncodingWithIPv6() {

   */
  private val routePlanner = FakeRoutePlanner(taskFaker = taskFaker)
  private val finder = FastFallbackExchangeFinder(routePlanner, taskRunner)

  @AfterEach
  fun tearDown() {
    taskFaker.close()
    routePlanner.close()
  }

  @Test
  fun takeConnectedConnection() {
    val plan0 = routePlanner.addPlan()
    plan0.connectState = TLS_CONNECTED

    taskRunner.newQueue().execute("connect") {

        else -> hostname == pattern
      }

    fun matchesCertificate(certificate: X509Certificate): Boolean =
      when (hashAlgorithm) {
        "sha256" -> hash == certificate.sha256Hash()
        "sha1" -> hash == certificate.sha1Hash()
        else -> false
      }

    override fun toString(): String = "$hashAlgorithm/${hash.base64()}"

    override fun equals(other: Any?): Boolean {