package org.example;

import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;

import java.util.Arrays;
import java.util.concurrent.TimeUnit;

@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Benchmark)
@Measurement(iterations = 3)
@Fork(1)
@Warmup(iterations = 5, time = 10)
public class Test {
  public static int[] gen() {
    return new int[]{...};
  }

  int[] array = gen();
  Integer[] boxArray = Arrays.stream(array).boxed().toArray(Integer[]::new);
  final int TOKEN = 10;

  @Benchmark
  public void testNull() {
    Blackhole.consumeCPU(TOKEN);
  }

  @Benchmark
  public long test() {
    Blackhole.consumeCPU(TOKEN);
    return Math.max(
      Arrays.stream(array).filter(x -> x < 0).count(),
      Arrays.stream(array).filter(x -> x > 0).count());
  }

  @Benchmark
  public long testBox() {
    Blackhole.consumeCPU(TOKEN);
    return Math.max(
      Arrays.stream(boxArray).filter(x -> x < 0).count(),
      Arrays.stream(boxArray).filter(x -> x > 0).count());
  }
}