Mac mac = Mac.getInstance("HmacMD5");
    mac.init(MD5_KEY);
    mac.update(input.getBytes(UTF_8));
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal(input.getBytes(UTF_8))).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashString(input, UTF_8).toString());

    Mac mac = Mac.getInstance("HmacMD5");
    mac.init(MD5_KEY);
    mac.update(input.getBytes(UTF_8));
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal(input.getBytes(UTF_8))).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashString(input, UTF_8).toString());

    for (ExpectedHashCode expected : expectedHashCodes) {
      HashCode fromBytes = HashCode.fromBytes(expected.bytes);
      assertExpectedHashCode(expected, fromBytes);
    }
  }

  public void testFromBytes_copyOccurs() {
    byte[] bytes = new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00};
    HashCode hashCode = HashCode.fromBytes(bytes);
    int expectedInt = 0x0000abcd;

    for (ExpectedHashCode expected : expectedHashCodes) {
      HashCode fromBytes = HashCode.fromBytes(expected.bytes);
      assertExpectedHashCode(expected, fromBytes);
    }
  }

  public void testFromBytes_copyOccurs() {
    byte[] bytes = new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00};
    HashCode hashCode = HashCode.fromBytes(bytes);
    int expectedInt = 0x0000abcd;

    try {
      MessageDigest digest = MessageDigest.getInstance(algorithmName);
      assertEquals(
          HashCode.fromBytes(digest.digest(input)), ALGORITHMS.get(algorithmName).hashBytes(input));
      for (int bytes = 4; bytes <= digest.getDigestLength(); bytes++) {
        assertEquals(
            HashCode.fromBytes(Arrays.copyOf(digest.digest(input), bytes)),

				return sql.FromNull(), nil
			}
			return sql.FromBytes([]byte(r.csvRecord[idx])), nil
		}
		// TODO: Return Missing?
		return nil, fmt.Errorf("column %v not found", name)
	}

	if index >= int64(len(r.csvRecord)) {
		// No value found for column 'name', hence return null
		// value
		return sql.FromNull(), nil
	}

	return sql.FromBytes([]byte(r.csvRecord[index])), nil
}

      return new AbstractStreamingHasher(4, 4) {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();

        @Override
        protected HashCode makeHash() {
          return HashCode.fromBytes(out.toByteArray());
        }

        @Override
        protected void process(ByteBuffer bb) {
          while (bb.hasRemaining()) {
            out.write(bb.get());
          }
        }

      return new AbstractStreamingHasher(4, 4) {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();

        @Override
        protected HashCode makeHash() {
          return HashCode.fromBytes(out.toByteArray());
        }

        @Override
        protected void process(ByteBuffer bb) {
          while (bb.hasRemaining()) {
            out.write(bb.get());
          }
        }

    try {
      MessageDigest digest = MessageDigest.getInstance(algorithmName);
      assertEquals(
          HashCode.fromBytes(digest.digest(input)), ALGORITHMS.get(algorithmName).hashBytes(input));
      for (int bytes = 4; bytes <= digest.getDigestLength(); bytes++) {
        assertEquals(
            HashCode.fromBytes(Arrays.copyOf(digest.digest(input), bytes)),

   */
  @CanIgnoreReturnValue // to skip some bytes
  @Override
  public int readUnsignedShort() throws IOException {
    byte b1 = readAndCheckByte();
    byte b2 = readAndCheckByte();

    return Ints.fromBytes((byte) 0, (byte) 0, b2, b1);
  }

  /**
   * Reads an integer as specified by {@link DataInputStream#readInt()}, except using little-endian
   * byte order.
   *