int readHeaderWireFormat(final byte[] buffer, final int bufferIndex) {
        command = buffer[bufferIndex + CMD_OFFSET];
        errorCode = readInt4(buffer, bufferIndex + ERROR_CODE_OFFSET);
        flags = buffer[bufferIndex + FLAGS_OFFSET];
        flags2 = readInt2(buffer, bufferIndex + FLAGS_OFFSET + 1);
        tid = readInt2(buffer, bufferIndex + TID_OFFSET);
        pid = readInt2(buffer, bufferIndex + TID_OFFSET + 2);

    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(buffer.readUtf8()).isEqualTo(expected)
  }

  @Test
  fun buildEmptyForm() {
    val body = FormBody.Builder().build()
    val expected = ""
    assertThat(body.contentLength()).isEqualTo(expected.length.toLong())
    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(buffer.readUtf8()).isEqualTo(expected)

    random.nextBytes(buf)
    assertRoundTrip(buf.toByteString())
  }

  private fun assertRoundTrip(data: ByteString) {
    val encodeBuffer = Buffer()
    encode(data, encodeBuffer)
    assertThat(encodedLength(data).toLong()).isEqualTo(encodeBuffer.size)
    val decodeBuffer = Buffer()
    decode(encodeBuffer, encodeBuffer.size, decodeBuffer)
    assertEquals(data, decodeBuffer.readByteString())
  }

        return 0;
    }

    @Override
    int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    int readDataWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override

  }

  public void testFromByteArrayWithTooShortArrayInputThrowsIllegalArgumentException() {
    byte[] buffer = MANY_VALUES_PAIRED_STATS.toByteArray();
    byte[] tooShortByteArray =
        ByteBuffer.allocate(buffer.length - 1)
            .order(ByteOrder.LITTLE_ENDIAN)
            .put(buffer, 0, buffer.length - 1)
            .array();
    assertThrows(

  }

  public void testFromByteArrayWithTooShortArrayInputThrowsIllegalArgumentException() {
    byte[] buffer = MANY_VALUES_PAIRED_STATS.toByteArray();
    byte[] tooShortByteArray =
        ByteBuffer.allocate(buffer.length - 1)
            .order(ByteOrder.LITTLE_ENDIAN)
            .put(buffer, 0, buffer.length - 1)
            .array();
    assertThrows(

        @Override
        public String toString() {
            StringBuilder buffer = new StringBuilder();
            for (Item item : this) {
                if (!buffer.isEmpty()) {
                    buffer.append((item instanceof ListItem) ? '-' : '.');
                }
                buffer.append(item);
            }
            return buffer.toString();
        }

        /**

  private val minimumDeflateSize: Long,
) : Closeable {
  /** This holds outbound data for compression and masking. */
  private val messageBuffer = Buffer()

  /** The [Buffer] of [sink]. Write to this and then flush/emit [sink]. */
  private val sinkBuffer: Buffer = sink.buffer
  private var writerClosed = false

  /** Lazily initialized on first use. */
  private var messageDeflater: MessageDeflater? = null

    /**
     * Constructs a file notify information from the given buffer.
     *
     * @param buffer the buffer containing the notification data
     * @param bufferIndex the starting index in the buffer
     * @param len the length of data to decode
     * @throws IOException if an I/O error occurs during decoding
     */
    public FileNotifyInformationImpl(final byte[] buffer, final int bufferIndex, final int len) throws IOException {

	nullByte = byte(0)
)

type scanner struct {
	pos       int64 // position in reader
	ipos      int64 // internal buffer position
	ifill     int64 // internal buffer fill
	end       int64
	buf       [chunk + 1]byte // internal buffer (with a lookback size of 1)
	nbuf      [chunk]byte     // next internal buffer
	fillReq   chan struct{}
	fillReady chan int64
	readerErr error // underlying reader error, if any
}