private static final int RANDOM_SEED = new Random().nextInt();

  private byte[] testBytes;

  @BeforeExperiment
  void setUp() {
    testBytes = new byte[size];
    new Random(RANDOM_SEED).nextBytes(testBytes);
  }

  @Benchmark
  byte hashing(int reps) {
    byte result = 0x01;
    HashMethod hashMethod = this.hashMethod;
    Algorithm algorithm = this.algorithm;
    for (int i = 0; i < reps; i++) {

  @Param({"4", "8", "64", "1024"})
  private int length;

  @BeforeExperiment
  void setUp() throws Exception {
    Random r = new Random();
    ba1 = new byte[length];
    r.nextBytes(ba1);
    ba2 = Arrays.copyOf(ba1, ba1.length);
    // Differ at the last element
    ba3 = Arrays.copyOf(ba1, ba1.length);
    ba4 = Arrays.copyOf(ba1, ba1.length);
    ba3[ba1.length - 1] = (byte) 43;

  @Param({"10", "1000", "100000", "1000000"})
  private int size;

  private byte[] testBytes;

  @BeforeExperiment
  void setUp() {
    testBytes = new byte[size];
    new Random(RANDOM_SEED).nextBytes(testBytes);
  }

  // CRC32

  @Benchmark
  byte crc32HashFunction(int reps) {
    return runHashFunction(reps, Hashing.crc32());
  }

  @Benchmark
  byte crc32Checksum(int reps) throws Exception {

  @Param({"10", "1000", "100000", "1000000"})
  private int size;

  private byte[] testBytes;

  @BeforeExperiment
  void setUp() {
    testBytes = new byte[size];
    new Random(RANDOM_SEED).nextBytes(testBytes);
  }

  // CRC32

  @Benchmark
  byte crc32HashFunction(int reps) {
    return runHashFunction(reps, Hashing.crc32());
  }

  @Benchmark
  byte crc32Checksum(int reps) throws Exception {

  private static final int RANDOM_SEED = new Random().nextInt();

  private byte[] testBytes;

  @BeforeExperiment
  void setUp() {
    testBytes = new byte[size];
    new Random(RANDOM_SEED).nextBytes(testBytes);
  }

  @Benchmark
  byte hashing(int reps) {
    byte result = 0x01;
    HashMethod hashMethod = this.hashMethod;
    Algorithm algorithm = this.algorithm;
    for (int i = 0; i < reps; i++) {

      listeners.put(state, listener);
    }

    return slackApi.authorizeUrl(scopes, redirectUrl(), state, team);
  }

  private ByteString randomToken() {
    byte[] bytes = new byte[16];
    secureRandom.nextBytes(bytes);
    return ByteString.of(bytes);
  }

  private HttpUrl redirectUrl() {
    return mockWebServer.url("/oauth/");
  }

    abstract boolean doEquals(byte[] a, byte[] b);
  }

  private byte[] testBytesA;
  private byte[] testBytesB;

  @BeforeExperiment
  void setUp() {
    testBytesA = new byte[size];
    random.nextBytes(testBytesA);
    testBytesB = Arrays.copyOf(testBytesA, size);
    int indexToDifferAt = -1;
    switch (whereToDiffer) {
      case ONE_PERCENT_IN:
        indexToDifferAt = (int) (size * 0.01);
        break;

    abstract boolean doEquals(byte[] a, byte[] b);
  }

  private byte[] testBytesA;
  private byte[] testBytesB;

  @BeforeExperiment
  void setUp() {
    testBytesA = new byte[size];
    random.nextBytes(testBytesA);
    testBytesB = Arrays.copyOf(testBytesA, size);
    int indexToDifferAt = -1;
    switch (whereToDiffer) {
      case ONE_PERCENT_IN:
        indexToDifferAt = (int) (size * 0.01);
        break;

    assertFailsWith<IndexOutOfBoundsException> {
      operator.write(0, buffer, 4L)
    }
  }

  private fun randomByteString(byteCount: Int): ByteString {
    val bytes = ByteArray(byteCount)
    Random(0).nextBytes(bytes)
    return ByteString.of(*bytes)
  }

  private fun snapshot(): ByteString {
    randomAccessFile!!.getChannel().force(false)
    val source = file!!.source().buffer()
    return source.readByteString()

    assertThat(actual).isEqualTo(expected)
  }

  companion object {
    private fun binaryData(length: Int): ByteString {
      val junk = ByteArray(length)
      Random(0).nextBytes(junk)
      return junk.toByteString()
    }
  }