var settings: Settings = Settings()
    private set
  var webSocketListener: WebSocketListener? = null
    private set

  val pushPromises: List<PushPromise>
    get() = promises

  init {
    setResponseCode(200)
    setHeader("Content-Length", 0L)
  }

  public override fun clone(): MockResponse {
    val result = super.clone() as MockResponse
    result.headersBuilder = headersBuilder.build().newBuilder()

      return new MockResponse()
          .setResponseCode(404)
          .setBody("unexpected request");
    }

    try {
      OAuthSession session = slackApi.exchangeCode(code, redirectUrl());
      listener.sessionGranted(session);
    } catch (IOException e) {
      return new MockResponse()
          .setResponseCode(400)
          .setBody("code exchange failed: " + e.getMessage());
    }

  val handshakeCertificates = TlsUtil.localhost()

  val server =
    MockWebServer().apply {
      useHttps(handshakeCertificates.sslSocketFactory(), false)

      enqueue(
        MockResponse()
          .setResponseCode(HTTP_MOVED_TEMP)
          .setHeader("Location", "https://www.google.com/robots.txt"),
      )
    }

  val clientCertificates =
    HandshakeCertificates
      .Builder()

  fun mockResponse() {
    var mockResponse: MockResponse = MockResponse()
    var status: String = mockResponse.status
    status = mockResponse.status
    mockResponse.status = ""
    mockResponse = mockResponse.setResponseCode(0)
    var headers: Headers = mockResponse.headers
    var trailers: Headers = mockResponse.trailers
    mockResponse = mockResponse.clearHeaders()
    mockResponse = mockResponse.addHeader("")