}

  @Benchmark
  byte fingerprintChecksum(int reps) throws Exception {
    byte result = 0x01;
    for (int i = 0; i < reps; i++) {
      HashCode checksum = new Fingerprint2011().hashBytes(testBytes, 0, testBytes.length);
      result = (byte) (result ^ checksum.asLong());
    }
    return result;
  }

  // Helpers + main

    assertHash(expected, murmur3_32_fixed().newHasher().putString(string, charset).hash());
    assertHash(expected, murmur3_32().hashBytes(string.getBytes(charset)));
    assertHash(expected, murmur3_32_fixed().hashBytes(string.getBytes(charset)));
    assertHash(expected, murmur3_32().newHasher().putBytes(string.getBytes(charset)).hash());

	byteBuf      []byte
}

func (b *streamingBitrotWriter) Write(p []byte) (int, error) {
	if len(p) == 0 {
		return 0, nil
	}
	b.h.Reset()
	b.h.Write(p)
	hashBytes := b.h.Sum(nil)
	_, err := b.iow.Write(hashBytes)
	if err != nil {
		b.closeWithErr(err)
		return 0, err
	}
	n, err := b.iow.Write(p)
	if err != nil {
		b.closeWithErr(err)
		return n, err
	}
	if n != len(p) {

    ImmutableSet<HashCode> hashCodes =
        ImmutableSet.of(
            SIP_WITH_KEY.hashBytes(col1),
            SIP_WITH_KEY.hashBytes(col2),
            SIP_WITH_KEY.hashBytes(col3));
    assertEquals(3, hashCodes.size());
  }

  public void testToString() {
    assertEquals("Hashing.sipHash24(" + K0 + ", " + K1 + ")", SIP_WITH_KEY.toString());

    ImmutableSet<HashCode> hashCodes =
        ImmutableSet.of(
            SIP_WITH_KEY.hashBytes(col1),
            SIP_WITH_KEY.hashBytes(col2),
            SIP_WITH_KEY.hashBytes(col3));
    assertEquals(3, hashCodes.size());
  }

  public void testToString() {
    assertEquals("Hashing.sipHash24(" + K0 + ", " + K1 + ")", SIP_WITH_KEY.toString());

    assertEquals(hashFunction.hashBytes(bytes), hashFunction.hashBytes(ByteBuffer.wrap(bytes)));
  }

  static void assertHashByteBufferExhaustsBuffer(HashFunction hashFunction) {
    Random rng = new Random(0L);
    byte[] bytes = new byte[rng.nextInt(256) + 1];
    rng.nextBytes(bytes);
    ByteBuffer buffer = ByteBuffer.wrap(bytes);
    HashCode unused = hashFunction.hashBytes(buffer);

    Mac mac = Mac.getInstance(algorithm);
    mac.init(key);
    mac.update(input);

    assertEquals(HashCode.fromBytes(mac.doFinal()), hashFunc.hashBytes(input));
    assertEquals(HashCode.fromBytes(mac.doFinal(input)), hashFunc.hashBytes(input));
  }

  // Tests from RFC2022: https://tools.ietf.org/html/rfc2202

  public void testRfc2202_hmacSha1_case1() {
    byte[] key = fillByteArray(20, 0x0b);

          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)),
            new MessageDigestHashFunction(algorithmName, bytes, algorithmName).hashBytes(input));
      }
      try {
        int maxSize = digest.getDigestLength();

  }

  @Benchmark
  byte fingerprintChecksum(int reps) throws Exception {
    byte result = 0x01;
    for (int i = 0; i < reps; i++) {
      HashCode checksum = new Fingerprint2011().hashBytes(testBytes, 0, testBytes.length);
      result = (byte) (result ^ checksum.asLong());
    }
    return result;
  }

  // Helpers + main

          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)),
            new MessageDigestHashFunction(algorithmName, bytes, algorithmName).hashBytes(input));
      }
      try {
        int maxSize = digest.getDigestLength();