.setHeader("Content-Type", "text/event-stream")
        .chunkedBody(
          """
          |event: add
          |data: 73857293
          |
          |event: remove
          |data: 2153
          |
          |event: add
          |data: 113411
          |
          |
          """.trimMargin(),
          8,
        )
        .build(),
    )

        // This check is imperfect: it doesn't tell us whether a handshake will succeed, just
        // that it will almost certainly fail because the proxy has sent unexpected data.
        if (source?.buffer?.exhausted() == false || sink?.buffer?.exhausted() == false) {
          throw IOException("TLS tunnel buffered too many bytes!")
        }

        user.secureConnectStart()

    try {
      client.newCall(request).execute()
      fail<Any>("expected cleartext blocking")
    } catch (_: java.net.UnknownServiceException) {
    }
  }

  data class HowsMySslResults(
    val unknown_cipher_suite_supported: Boolean,
    val beast_vuln: Boolean,
    val session_ticket_supported: Boolean,
    val tls_compression_supported: Boolean,

        .build()
    server.useHttps(handshakeCertificates.sslSocketFactory())
  }

  private fun gzip(data: String): Buffer {
    val result = Buffer()
    val sink = GzipSink(result).buffer()
    sink.writeUtf8(data)
    sink.close()
    return result
  }

  private fun cancelLater(
    call: Call,
    delay: Long,
  ): Thread {

    callback.assertTextMessage("Hello")
  }

  @Test fun clientTwoFrameHelloWithPongs() {
    data.write("010348656c".decodeHex()) // Hel
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("80026c6f".decodeHex()) // lo
    clientReader.processNextFrame()
    callback.assertPong(EMPTY)

  @Test
  fun largeRead() {
    val data = randomByteString(1000000)
    write(data)
    val operator =
      FileOperator(
        randomAccessFile!!.getChannel(),
      )
    val buffer = Buffer()
    operator.read(0, buffer, data.size.toLong())
    assertThat(buffer.readByteString()).isEqualTo(data)
  }

  @Test
  fun largeWrite() {
    val data = randomByteString(1000000)
    val operator =

    drainCancelQueue(eventSource)
  }

  override fun onEvent(
    eventSource: EventSource,
    id: String?,
    type: String?,
    data: String,
  ) {
    get().log("[ES] onEvent", Platform.INFO, null)
    events.add(Event(id, type, data))
    drainCancelQueue(eventSource)
  }

  override fun onClosed(eventSource: EventSource) {
    get().log("[ES] onClosed", Platform.INFO, null)

      """
      |--AaB03x
      |Content-Disposition: form-data; name="field with spaces"; filename="filename with spaces.txt"
      |Content-Type: text/plain; charset=utf-8
      |
      |okay
      |--AaB03x
      |Content-Disposition: form-data; name="field with %22"
      |
      |"
      |--AaB03x
      |Content-Disposition: form-data; name="field with %22"
      |
      |%22
      |--AaB03x

      sink.writeInt(errorCode.httpCode)
      sink.flush()
    }
  }

  /** The maximum size of bytes that may be sent in a single call to [data]. */
  fun maxDataLength(): Int = maxFrameSize

  /**
   * `source.length` may be longer than the max length of the variant's data frame. Implementations
   * must send multiple frames as necessary.
   *
   * @param source the buffer to draw bytes from. May be null if byteCount is 0.

  ) {
    if (streamId == 0) throw IOException("PROTOCOL_ERROR: TYPE_DATA streamId == 0")

    // TODO: checkState open or half-closed (local) or raise STREAM_CLOSED
    val inFinished = flags and FLAG_END_STREAM != 0
    val gzipped = flags and FLAG_COMPRESSED != 0
    if (gzipped) {
      throw IOException("PROTOCOL_ERROR: FLAG_COMPRESSED without SETTINGS_COMPRESS_DATA")
    }