public void testAdler32() {
    HashTestUtils.assertInvariants(Hashing.adler32());
    assertEquals("Hashing.adler32()", Hashing.adler32().toString());
  }

  public void testMurmur3_128() {
    HashTestUtils.check2BitAvalanche(Hashing.murmur3_128(), 250, 0.20);
    HashTestUtils.checkAvalanche(Hashing.murmur3_128(), 250, 0.17);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.murmur3_128());

          }
        }
      }
    }
  }

  /**
   * Test for avalanche with 2-bit deltas. Most probabilities of output bit(j) differing are well
   * within 50%.
   */
  static void check2BitAvalanche(HashFunction function, int trials, double epsilon) {
    Random rand = new Random(0);
    int keyBits = 32;
    int hashBits = function.bits();
    for (int bit1 = 0; bit1 < keyBits; bit1++) {