private val servers = mutableMapOf<String, MockWebServer>()
    private var started = false

    fun server(name: String): MockWebServer {
      return servers.getOrPut(name) {
        MockWebServer().also {
          if (started) it.start()
        }
      }
    }

    fun startAll() {
      started = true
      for (server in servers.values) {
        server.start()
      }
    }

  fun beforeEach(server: MockWebServer) {
    instanceServer = server

    assertThat(instanceServer).isNotSameInstanceAs(staticServer)
    assertThat(instanceServer).isSameInstanceAs(server)

    assertThat(server.started).isTrue()
    server.enqueue(MockResponse())
  }

  @AfterEach
  fun afterEach(server: MockWebServer) {
    assertThat(server).isSameInstanceAs(instanceServer)
  }

  @Test

   * [WindowCounter] generally carries the client view of total and acked bytes.
   */
  fun receivingStreamWindowChanged(
    streamId: Int,
    windowCounter: WindowCounter,
    bufferSize: Long,
  )

  /**
   * Notification that the receiving connection flow control window has changed.
   * [WindowCounter] generally carries the client view of total and acked bytes.
   */

 * server may not have had time to close the socket. The socket will be closed at an indeterminate
 * point before or during the second request. It may be closed after client has started sending the
 * request body. If a request body is not retryable then the client may fail the request, making
 * client behavior non-deterministic. Add delays in the client to improve the chances that the

   *
   * The target execution time is implemented on a best-effort basis. If another task in this queue
   * is running when that time is reached, that task is allowed to complete before this task is
   * started. Similarly the task will be delayed if the host lacks compute resources.
   *
   * @throws RejectedExecutionException if the queue is shut down and the task is not cancelable.
   */
  fun schedule(
    task: Task,

 * Any IO - writing to files or network should be done asynchronously.
 */
@ExperimentalOkHttpApi
abstract class ConnectionListener {
  /**
   * Invoked as soon as a call causes a connection to be started.
   */
  open fun connectStart(
    route: Route,
    call: Call,
  ) {}

  /**
   * Invoked when a connection fails to be established.
   */
  open fun connectFailed(
    route: Route,

 * handshakes.
 */
class Handshake internal constructor(
  /**
   * Returns the TLS version used for this connection. This value wasn't tracked prior to OkHttp
   * 3.0. For responses cached by preceding versions this returns [TlsVersion.SSL_3_0].
   */
  @get:JvmName("tlsVersion") val tlsVersion: TlsVersion,
  /** Returns the cipher suite used for the connection. */

  ) {
    defaultInstancePort = defaultInstance.port
    instanceAPort = instanceA.port
    instanceBPort = instanceB.port
    assertThat(defaultInstance.started).isTrue()
    assertThat(instanceA.started).isTrue()
    assertThat(instanceB.started).isTrue()
    assertThat(defaultInstancePort).isNotEqualTo(instanceAPort)
    assertThat(defaultInstancePort).isNotEqualTo(instanceBPort)
  }

  @AfterEach
  fun tearDown(

    get() = delegate.protocols
    set(value) {
      delegate.protocols = value
    }

  init {
    delegate.dispatcher = dispatcher.wrap()
  }

  private var started: Boolean = false

  @Synchronized override fun before() {
    if (started) return
    try {
      start()
    } catch (e: IOException) {
      throw RuntimeException(e)
    }
  }

  @JvmName("-deprecated_port")
  @Deprecated(