) : ExchangeCodec {
  private var state = STATE_IDLE
  private val headersReader = HeadersReader(socket.source)

  private val Response.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  private val Request.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  /**
   * Trailers received when the response body became exhausted.
   *

    val headers1 =
      Headers
        .Builder()
        .add("Connection", "close")
        .add("Transfer-Encoding", "chunked")
        .build()
    val headers2 =
      Headers
        .Builder()
        .add("Connection", "close")
        .add("Transfer-Encoding", "chunked")
        .build()
    assertThat(headers2).isEqualTo(headers1)
    assertThat(headers2.hashCode()).isEqualTo(headers1.hashCode())
  }

  }

  @Test
  fun chunkedUpload_byteByByte() {
    doUpload(TransferKind.CHUNKED, WriteKind.BYTE_BY_BYTE)
  }

  @Test
  fun chunkedUpload_smallBuffers() {
    doUpload(TransferKind.CHUNKED, WriteKind.SMALL_BUFFERS)
  }

  @Test
  fun chunkedUpload_largeBuffers() {
    doUpload(TransferKind.CHUNKED, WriteKind.LARGE_BUFFERS)
  }

  @Test
  fun fixedLengthUpload_byteByByte() {

	"fmt"
	"io"
	"net/http"
	"strings"
)

// newUnsignedV4ChunkedReader returns a new s3UnsignedChunkedReader that translates the data read from r
// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
func newUnsignedV4ChunkedReader(req *http.Request, trailer bool, signature bool) (io.ReadCloser, APIErrorCode) {
	if signature {

			// to a custom value for example: "aws-chunked,gzip".
			metadata[strings.ToLower(xhttp.ContentEncoding)] = contentEncoding
		} else {
			// Trimmed content encoding is empty when the header
			// value is set to "aws-chunked" only.

			// Make sure to delete the content-encoding parameter
			// for a streaming signature which is set to value
			// for example: "aws-chunked"

// lineTooLong is generated as chunk header is bigger than 4KiB.
var errLineTooLong = errors.New("header line too long")

// malformed encoding is generated when chunk header is wrongly formed.
var errMalformedEncoding = errors.New("malformed chunked encoding")

// chunk is considered too big if its bigger than > 16MiB.
var errChunkTooBig = errors.New("chunk too big: choose chunk size <= 16MiB")

          contentLength = header.substring(15).trim().toLong()
        }
        if (lowercaseHeader.startsWith("transfer-encoding:") &&
          lowercaseHeader.substring(18).trim() == "chunked"
        ) {
          chunked = true
        }
      }

      val peek = dispatcher.peek()
      for (response in peek.informationalResponses) {
        writeHttpResponse(socket, response)
      }

      }

    /**
     * Sets the response body to [body], chunked every [maxChunkSize] bytes.
     */
    public fun chunkedBody(
      body: Buffer,
      maxChunkSize: Int = Int.MAX_VALUE,
    ): Builder =
      apply {
        removeHeader("Content-Length")
        headers_.add("Transfer-encoding: chunked")

        val bytesOut = Buffer()
        while (!body.exhausted()) {

        // For example, how do you split [0,0,0,0,0] into 3 buckets?
        // In this case, we simply put the elements into these buckets evenly.
        return list.chunked(list.size / expectedBucketNumber, smallElementAggregateFunction)
    }

    val largestElement = list.removeFirst()!!

    val largestElementSize = toIntFunction(largestElement)

      .assertLogMatch(Regex("""Transfer-encoding: chunked"""))
      .assertLogEqual("<-- END HTTP (streaming)")
      .assertNoMoreLogs()
    applicationLogs
      .assertLogEqual("--> GET $url")
      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Type: text/event-stream")
      .assertLogMatch(Regex("""Transfer-encoding: chunked"""))