assertFalse(
        Hashing.combineOrdered(ImmutableList.of(hash31, hash32))
            .equals(Hashing.combineOrdered(ImmutableList.of(hash32, hash31))));
  }

  public void testCombineOrdered_randomHashCodes() {
    Random random = new Random(7);
    List<HashCode> hashCodes = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
      hashCodes.add(HashCode.fromLong(random.nextLong()));
    }