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++) {
      result ^= hashMethod.hash(algorithm, testBytes)[0];
    }
    return result;
  }

  }

  @Benchmark
  public int countIn(int reps) {
    int result = 0;
    CharMatcher matcher = this.matcher;
    String teststring = this.teststring;
    for (int i = 0; i < reps; i++) {
      result += matcher.countIn(teststring);
    }
    return result;
  }

  @Benchmark
  public int collapseFrom(int reps) {
    int result = 0;
    CharMatcher matcher = this.matcher;

  }

  @Benchmark
  public int countIn(int reps) {
    int result = 0;
    CharMatcher matcher = this.matcher;
    String teststring = this.teststring;
    for (int i = 0; i < reps; i++) {
      result += matcher.countIn(teststring);
    }
    return result;
  }

  @Benchmark
  public int collapseFrom(int reps) {
    int result = 0;
    CharMatcher matcher = this.matcher;

  SpecialRandom rng;

  @BeforeExperiment
  void setUp() {
    this.view = traversal.view(topology.createTree(size, rng).get(), VIEWER);
  }

  @Benchmark
  int traversal(int reps) {
    int tmp = 0;

    for (int i = 0; i < reps; i++) {
      for (BinaryNode node : view) {
        tmp += node.x;
      }
    }
    return tmp;
  }

  SpecialRandom rng;

  @BeforeExperiment
  void setUp() {
    this.view = traversal.view(topology.createTree(size, rng).get(), VIEWER);
  }

  @Benchmark
  int traversal(int reps) {
    int tmp = 0;

    for (int i = 0; i < reps; i++) {
      for (BinaryNode node : view) {
        tmp += node.x;
      }
    }
    return tmp;
  }

    data = ByteSource.wrap(string.getBytes(charset));
  }

  @Benchmark
  public int timeCopy(int reps) throws IOException {
    int r = 0;
    final Charset localCharset = charset;
    final ByteSource localData = data;
    final ReadStrategy localStrategy = strategy;
    for (int i = 0; i < reps; i++) {
      r += localStrategy.read(localData, localCharset).hashCode();
    }
    return r;
  }

    }
  }

  @Benchmark
  int benchmarkGetChecked(int reps) {
    int tmp = 0;
    GetCheckedTypeValidator validator = this.validator.validator;
    Future<Object> future = this.result.future;
    Class<? extends Exception> exceptionType = this.exceptionType.exceptionType;
    for (int i = 0; i < reps; ++i) {
      try {
        tmp += getChecked(validator, future, exceptionType).hashCode();

# - bats: bash unit testing framework
#         NOTE: v1.6.0 seems to have a bug that made "git" in setup_file break
# - bazelisk: always use the correct bazel version
# - buildifier: clean bazel build deps
# - buildozer: clean bazel build deps
RUN git clone --branch v1.7.0 https://github.com/bats-core/bats-core.git && bats-core/install.sh /usr/local && rm -rf bats-core

RUN ln -s /usr/lib/llvm-18/bin/clang /usr/bin/clang

# Install various tools.
# - bats: bash unit testing framework
# - bazelisk: always use the correct bazel version
# - buildifier: clean bazel build deps
# - buildozer: clean bazel build deps
# - gcloud SDK: communicate with Google Cloud Platform (GCP) for RBE, CI
# - patchelf: Utility tool to modify existing ELF executables and libraries

  result="$(cd "${dir}" && git rev-parse HEAD)"
  rm -rf "${dir}"

  echo "${result}"
}