val bytesOut = Buffer()
        while (!body.exhausted()) {
          val chunkSize = minOf(body.size, maxChunkSize.toLong())
          bytesOut.writeHexadecimalUnsignedLong(chunkSize)
          bytesOut.writeUtf8("\r\n")
          bytesOut.write(body, chunkSize)
          bytesOut.writeUtf8("\r\n")
        }
        bytesOut.writeUtf8("0\r\n") // Last chunk. Trailers follow!

          }

          chunked -> {
            chunkSizes = mutableListOf()
            hasBody = true
            while (true) {
              val chunkSize =
                socket.source
                  .readUtf8LineStrict()
                  .trim()
                  .toInt(16)
              if (chunkSize == 0) {
                readEmptyLine(socket.source)
                break

      response: MockResponse.Builder,
      content: Buffer?,
      chunkSize: Int,
    )

    abstract fun newRequestBody(body: String): RequestBody

    fun setBody(
      response: MockResponse.Builder,
      content: String?,
      chunkSize: Int,
    ) {
      setBody(response, Buffer().writeUtf8(content!!), chunkSize)
    }
  }

  internal enum class ProxyConfig {

        response: MockResponse.Builder,
        content: Buffer,
        chunkSize: Int,
      ) {
        response.chunkedBody(content, chunkSize)
      }
    },
    FIXED_LENGTH {
      override fun setBody(
        response: MockResponse.Builder,
        content: Buffer,
        chunkSize: Int,
      ) {
        response.body(content)
      }
    },
    END_OF_STREAM {

    method = requestLine.method,
    target = requestLine.target,
    version = requestLine.version,
    url = requestUrl,
    headers = headers,
    body = body,
    bodySize = bodySize,
    chunkSizes = chunkSizes,
    failure = failure,
  )
}

internal fun decodeRequestLine(requestLine: String?): RequestLine {
  val parts =
    when {
      requestLine != null -> requestLine.split(' ', limit = 3)

    response = response.wrap(),
  )

internal fun mockwebserver3.RecordedRequest.unwrap(): RecordedRequest =
  RecordedRequest(
    requestLine = requestLine,
    headers = headers,
    chunkSizes = chunkSizes ?: listOf(),
    bodySize = bodySize,
    body = Buffer().write(body ?: ByteString.EMPTY),
    sequenceNumber = exchangeIndex,
    failure = failure,
    method = method,
    path = target,

  public val bodySize: Long,
  /**
   * The sizes of the chunks of this request's body, or null if the request's body was not encoded
   * with chunked encoding.
   */
  public val chunkSizes: List<Int>?,
  /**
   * The failure MockWebServer recorded when attempting to decode this request. If, for example,
   * the inbound request was truncated, this exception will be non-null.
   */

    var path: String? = recordedRequest.path
    var headers: Headers = recordedRequest.headers
    val header: String? = recordedRequest.getHeader("")
    var chunkSizes: List<Int>? = recordedRequest.chunkSizes
    var bodySize: Long = recordedRequest.bodySize
    var body: Buffer = recordedRequest.body
    var utf8Body: String = recordedRequest.body.readUtf8()

    assertThat(recordedRequest.bodySize).isEqualTo(1048576)
    assertThat(recordedRequest.chunkSizes).isNotNull()
  }

  @Test
  fun uploadBodyEmptyChunkedEncoding() {
    upload(true, 0, 256)
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.bodySize).isEqualTo(0)
    assertThat(recordedRequest.chunkSizes).isEqualTo(listOf())
  }

  @Test
  fun uploadBodyLargeChunkedEncoding() {

 *  Breaking: `RecordedRequest.body` is now nullable. Null is used when the request does not have a
    body.

 *  Breaking: `RecordedRequest.chunkSizes` is now nullable. Null is used when the request does not
    use chunked encoding. This is different from an empty list - that indicates the request is
    chunked but has no data.