.of(MEGA_STREAM_POPULATION_VARIANCE);
    assertThat(stats.min()).isEqualTo(MEGA_STREAM_MIN);
    assertThat(stats.max()).isEqualTo(MEGA_STREAM_MAX);
  }

  public void testOfPrimitiveIntStream() {
    Stats stats = Stats.of(megaPrimitiveDoubleStream().mapToInt(x -> (int) x));
    assertThat(stats.count()).isEqualTo(MEGA_STREAM_COUNT);