class FastFallbackTest {
  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  // Don't use JUnit 5 test rules for these; otherwise we can't bind them to a single local IP.
  private lateinit var localhostIpv4: InetAddress
  private lateinit var localhostIpv6: InetAddress
  private lateinit var serverIpv4: MockWebServer
  private lateinit var serverIpv6: MockWebServer

  private val listener = RecordingEventListener()

   * }
   * ```
   *
   * The first property of the pair is the adapter that was used, the second property is the value.
   */
  internal val generalNameDnsName = Adapters.IA5_STRING.withTag(tag = 2L)
  internal val generalNameIpAddress = Adapters.OCTET_STRING.withTag(tag = 7L)
  internal val generalName: DerAdapter<Pair<DerAdapter<*>, Any?>> =
    Adapters.choice(
      generalNameDnsName,
      generalNameIpAddress,

      }
    }

  private val backend = TaskRunner.RealBackend(threadFactory)
  private val taskRunner = TaskRunner(backend)
  private val queue = taskRunner.newQueue()

  @AfterEach fun tearDown() {
    backend.shutdown()
  }

  @Test fun test() {
    val t1 = System.nanoTime() / 1e6

    val delays = mutableListOf(TimeUnit.MILLISECONDS.toNanos(1000), -1L)

  var testLogHandler = TestLogHandler(OkHttpClient::class.java)
  private lateinit var webServer: MockWebServer
  private val handshakeCertificates = platform.localhostHandshakeCertificates()
  private val clientListener = WebSocketRecorder("client")
  private val serverListener = WebSocketRecorder("server")
  private val random = Random(0)
  private var client =
    clientTestRule.newClientBuilder()
      .writeTimeout(Duration.ofMillis(500))

class ResponseCommonTest {
  @Test fun peekShorterThanResponse() {
    val response = newResponse(responseBody("abcdef"))
    val peekedBody = response.peekBody(3)
    assertThat(peekedBody.string()).isEqualTo("abc")
    assertThat(response.body.string()).isEqualTo("abcdef")
  }

  @Test fun peekLongerThanResponse() {
    val response = newResponse(responseBody("abc"))
    val peekedBody = response.peekBody(6)

   * represent the length.
   */
  internal const val B1_MASK_LENGTH = 127

  internal const val OPCODE_CONTINUATION = 0x0
  internal const val OPCODE_TEXT = 0x1
  internal const val OPCODE_BINARY = 0x2

  internal const val OPCODE_CONTROL_CLOSE = 0x8
  internal const val OPCODE_CONTROL_PING = 0x9
  internal const val OPCODE_CONTROL_PONG = 0xa

  /**

          continue // Not a header we're interested in.
        }
        val header = responseHeaders.value(i)

        // Parse each extension.
        var pos = 0
        while (pos < header.length) {
          val extensionEnd = header.delimiterOffset(',', pos)
          val extensionTokenEnd = header.delimiterOffset(';', pos, extensionEnd)
          val extensionToken = header.trimSubstring(pos, extensionTokenEnd)

import okio.ByteString.Companion.decodeHex
import okio.DeflaterSink

private val EMPTY_DEFLATE_BLOCK = "000000ffff".decodeHex()
private const val LAST_OCTETS_COUNT_TO_REMOVE_AFTER_DEFLATION = 4

class MessageDeflater(
  private val noContextTakeover: Boolean,
) : Closeable {
  private val deflatedBytes = Buffer()

  private val deflater =
    Deflater(
      Deflater.DEFAULT_COMPRESSION,

 * on [ExchangeCodec], which handles the actual I/O.
 */
class Exchange(
  internal val call: RealCall,
  internal val eventListener: EventListener,
  internal val finder: ExchangeFinder,
  private val codec: ExchangeCodec,
) {
  /** True if the request body need not complete before the response body starts. */
  internal var isDuplex: Boolean = false
    private set

 */
@Suppress("DEPRECATION")
class HeldCertificate(
  @get:JvmName("keyPair") val keyPair: KeyPair,
  @get:JvmName("certificate") val certificate: X509Certificate,
) {
  @JvmName("-deprecated_certificate")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "certificate"),
    level = DeprecationLevel.ERROR,
  )