assertThat(actual).isEqualTo(expected)
  }

  companion object {
    private fun binaryData(length: Int): ByteString {
      val junk = ByteArray(length)
      Random(0).nextBytes(junk)
      return junk.toByteString()
    }
  }

    assertFailsWith<IndexOutOfBoundsException> {
      operator.write(0, buffer, 4L)
    }
  }

  private fun randomByteString(byteCount: Int): ByteString {
    val bytes = ByteArray(byteCount)
    Random(0).nextBytes(bytes)
    return ByteString.of(*bytes)
  }

  private fun snapshot(): ByteString {
    randomAccessFile!!.getChannel().force(false)
    val source = file!!.source().buffer()
    return source.readByteString()

      listeners.put(state, listener);
    }

    return slackApi.authorizeUrl(scopes, redirectUrl(), state, team);
  }

  private ByteString randomToken() {
    byte[] bytes = new byte[16];
    secureRandom.nextBytes(bytes);
    return ByteString.of(bytes);
  }

  private HttpUrl redirectUrl() {
    return mockWebServer.url("/oauth/");
  }

    }.also { expected ->
      assertThat(expected.message!!).contains("closed")
    }
  }

  private fun binaryData(length: Int): ByteString {
    val junk = ByteArray(length)
    random.nextBytes(junk)
    return junk.toByteString()
  }

    }

    val b0 = B0_FLAG_FIN or opcode
    sinkBuffer.writeByte(b0)

    var b1 = length
    if (isClient) {
      b1 = b1 or B1_FLAG_MASK
      sinkBuffer.writeByte(b1)

      random.nextBytes(maskKey!!)
      sinkBuffer.write(maskKey)

      if (length > 0) {
        val payloadStart = sinkBuffer.size
        sinkBuffer.write(payload)

        sinkBuffer.readAndWriteUnsafe(maskCursor!!)

    for (i in s.indices) {
      assertRoundTrip(s.substring(0, i).encodeUtf8())
    }
    val random = Random(123456789L)
    val buf = ByteArray(4096)
    random.nextBytes(buf)
    assertRoundTrip(buf.toByteString())
  }

  private fun assertRoundTrip(data: ByteString) {
    val encodeBuffer = Buffer()
    encode(data, encodeBuffer)

  private var awaitingPong = false

  init {
    require("GET" == originalRequest.method) {
      "Request must be GET: ${originalRequest.method}"
    }

    this.key = ByteArray(16).apply { random.nextBytes(this) }.toByteString().base64()
  }

  override fun request(): Request = originalRequest

  @Synchronized override fun queueSize(): Long = queueSize

  override fun cancel() {
    call!!.cancel()
  }