String expected = cell.getValue();
      assertEquals(
          String.format(Locale.ROOT, "Known hash for hash(%s, UTF_8) failed", input),
          expected,
          func.hashString(input, UTF_8).toString());
    }
  }

  public void testNullPointers() {
    NullPointerTester tester =
        new NullPointerTester()
            .setDefault(byte[].class, "secret key".getBytes(UTF_8))

    assertEquals(
        hashFunction.hashUnencodedChars(string),
        hashFunction.newHasher().putUnencodedChars(string).hash());
    for (Charset charset : CHARSETS) {
      assertEquals(
          hashFunction.hashString(string, charset),
          hashFunction.newHasher().putString(string, charset).hash());
    }
  }

  /**
   * This verifies that putUnencodedChars(String) and hashUnencodedChars(String) are equivalent,

// Must be able to grab read lock from p.

func (p *ReplicationPool) getWorkerCh(bucket, object string, sz int64) chan<- ReplicationWorkerOperation {
	h := xxh3.HashString(bucket + object)
	p.mu.RLock()
	defer p.mu.RUnlock()
	if len(p.workers) == 0 {
		return nil
	}
	return p.workers[h%uint64(len(p.workers))]
}