private fun Buffer.skipCommasAndWhitespace(): Boolean {
  var commaFound = false
  loop@ while (!exhausted()) {
    when (this[0]) {
      ','.code.toByte() -> {
        // Consume ','.
        readByte()
        commaFound = true
      }

      ' '.code.toByte(), '\t'.code.toByte() -> {
        readByte()
        // Consume space or tab.
      }

      else -> break@loop
    }
  }
  return commaFound

     * @return 変換された{@link Byte}
     */
    public static Byte toByte(final Object o) {
        return toByte(o, null);
    }

    /**
     * {@link Byte}に変換します。
     *
     * @param o
     *            変換元のオブジェクト
     * @param pattern
     *            パターン文字列
     * @return 変換された{@link Byte}
     */
    public static Byte toByte(final Object o, final String pattern) {
        if (o == null) {

        byteArrayOf(192.toByte(), 168.toByte(), 0, 1),
      ),
    ).isEqualTo("192.168.0.1")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(252.toByte(), 253.toByte(), 254.toByte(), 255.toByte()),
      ),
    ).isEqualTo("252.253.254.255")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(255.toByte(), 255.toByte(), 255.toByte(), 255.toByte()),
      ),

internal const val TYPE_VALID = 6

private fun BufferedSource.skipWhitespace() {
  while (!exhausted()) {
    if (buffer[0] != ' '.code.toByte()) return
    skip(1L)
  }
}

private fun BufferedSource.skipRestOfLine() {
  when (val newline = indexOf('\n'.code.toByte())) {
    -1L -> skip(buffer.size) // Exhaust this source.
    else -> skip(newline + 1)
  }
}

/**

private fun isMappedIpv4Address(address: ByteArray): Boolean {
  if (address.size != 16) return false

  for (i in 0 until 10) {
    if (address[i] != 0.toByte()) return false
  }

  if (address[10] != 255.toByte()) return false
  if (address[11] != 255.toByte()) return false

  return true
}

/** Encodes an IPv4 address in canonical form according to RFC 4001. */

    val utf8 = Buffer().writeUtf8(s)
    val v1 = utf8.readDecimalLong()
    require(utf8.readByte() == '.'.code.toByte())
    val v2 = utf8.readDecimalLong()
    writeVariableLengthLong(v1 * 40 + v2)

    while (!utf8.exhausted()) {
      require(utf8.readByte() == '.'.code.toByte())
      val vN = utf8.readDecimalLong()
      writeVariableLengthLong(vN)
    }
  }

    }
  }

  @Test fun readPaddedDataFrame() {
    val dataLength = 1123
    val expectedData = ByteArray(dataLength)
    Arrays.fill(expectedData, 2.toByte())
    val paddingLength = 254
    val padding = ByteArray(paddingLength)
    Arrays.fill(padding, 0.toByte())
    writeMedium(frame, dataLength + paddingLength + 1)
    frame.writeByte(Http2.TYPE_DATA)
    frame.writeByte(FLAG_PADDED)

 *
 */
public class ByteConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToByte() throws Exception {
        assertEquals(new Byte("100"), ByteConversionUtil.toByte("100"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveByte() throws Exception {
        assertEquals(100, ByteConversionUtil.toPrimitiveByte("100"));
    }

    /**

     */
    @JvmField
    val FORM = "multipart/form-data".toMediaType()

    private val COLONSPACE = byteArrayOf(':'.code.toByte(), ' '.code.toByte())
    private val CRLF = byteArrayOf('\r'.code.toByte(), '\n'.code.toByte())
    private val DASHDASH = byteArrayOf('-'.code.toByte(), '-'.code.toByte())

    /**
     * Appends a quoted-string to a StringBuilder.
     *

        // array.
        while (mid > -1 && this[mid] != '\n'.code.toByte()) {
          mid--
        }
        mid++

        // Now look for the ending '\n'.
        var end = 1
        while (this[mid + end] != '\n'.code.toByte()) {
          end++
        }
        val publicSuffixLength = mid + end - mid