*/
class WebSocketWriter(
  private val isClient: Boolean,
  val sink: BufferedSink,
  val random: Random,
  private val perMessageDeflate: Boolean,
  private val noContextTakeover: Boolean,
  private val minimumDeflateSize: Long,
) : Closeable {
  /** This holds outbound data for compression and masking. */
  private val messageBuffer = Buffer()

  @Test
  fun sourceEmpty() {
    val mediaType = if (null == null) null else "any/thing; charset=${null}".toMediaType()
    val body = "".decodeHex().toResponseBody(mediaType)
    val source = body.source()
    assertThat(source.exhausted()).isTrue()
    assertThat(source.readUtf8()).isEqualTo("")
  }

  @Test
  fun sourceClosesUnderlyingSource() {
    var closed = false

    val body: ResponseBody =

      require(utf8.readByte() == '.'.code.toByte())
      val vN = utf8.readDecimalLong()
      writeVariableLengthLong(vN)
    }
  }

  /** Used for tags and subidentifiers. */
  private fun writeVariableLengthLong(v: Long) {
    val sink = sink()
    val bitCount = 64 - java.lang.Long.numberOfLeadingZeros(v)
    val byteCount = (bitCount + 6) / 7
    for (shift in (byteCount - 1) * 7 downTo 0 step 7) {

  companion object {
    const val HOSTNAME_THAT_ONLY_THE_PROXY_KNOWS = "onlyProxyCanResolveMe.org"
    private const val VERSION_5 = 5
    private const val METHOD_NONE = 0xff
    private const val METHOD_NO_AUTHENTICATION_REQUIRED = 0
    private const val ADDRESS_TYPE_IPV4 = 1
    private const val ADDRESS_TYPE_DOMAIN_NAME = 3
    private const val COMMAND_CONNECT = 1
    private const val REPLY_SUCCEEDED = 0

@Timeout(30)
open class CallTest {
  private val fileSystem = FakeFileSystem()

  @RegisterExtension
  val platform = PlatformRule()

  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  @RegisterExtension
  val testLogHandler = TestLogHandler(OkHttpClient::class.java)

  @StartStop
  private val server = MockWebServer()

  @StartStop
  private val server2 = MockWebServer()

import org.junit.jupiter.api.extension.RegisterExtension

@Timeout(30)
open class TrailersTest {
  private val fileSystem = FakeFileSystem()

  @JvmField
  @RegisterExtension
  val platform = PlatformRule()

  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  @StartStop
  private val server = MockWebServer()

  private var client =
    clientTestRule
      .newClientBuilder()

 *
 * This class is not thread safe.
 *
 * [rfc_6455]: http://tools.ietf.org/html/rfc6455
 */
class WebSocketReader(
  private val isClient: Boolean,
  val source: BufferedSource,
  private val frameCallback: FrameCallback,
  private val perMessageDeflate: Boolean,
  private val noContextTakeover: Boolean,
) : Closeable {
  private var closed = false

  // Stateful data about the current frame.
  private var opcode = 0

}

internal data class Mapping(
  val sourceCodePoint0: Int,
  val sourceCodePoint1: Int,
  val type: Int,
  val mappedTo: ByteString,
) {
  val section: Int
    get() = sourceCodePoint0 and 0x1fff80

  val rangeStart: Int
    get() = sourceCodePoint0 and 0x7f

  val hasSingleSourceCodePoint: Boolean
    get() = sourceCodePoint0 == sourceCodePoint1

  val spansSections: Boolean

 */
class ConnectPlan(
  private val taskRunner: TaskRunner,
  private val connectionPool: RealConnectionPool,
  private val readTimeoutMillis: Int,
  private val writeTimeoutMillis: Int,
  private val socketConnectTimeoutMillis: Int,
  private val socketReadTimeoutMillis: Int,
  private val pingIntervalMillis: Int,
  private val retryOnConnectionFailure: Boolean,
  private val user: ConnectionUser,

    private set

  internal val socket: BufferedSocket = builder.socket
  val writer = Http2Writer(socket.sink, client)

  // Visible for testing
  val readerRunnable = ReaderRunnable(Http2Reader(socket.source, client))

  // Guarded by this.
  private val currentPushRequests = mutableSetOf<Int>()

  init {
    if (builder.pingIntervalMillis != 0) {