#include <fuc2/testing.hpp>
#include "algos/stats.hpp"
#include "algos/rand.hpp"
#include <cmath>
#include <fmt/core.h>

using namespace fuc2;

namespace stats_tests {

  void test_basic_stats_tests() {
    Stats stat1;
    stat1.sample(1.0);

    for(int i = 0; i < 20; i++) {
      double x = Random::normal(20.0,5.0);
      stat1.sample(x);
      CHECK(!std::isnan(stat1.stddev()));
      CHECK(stat1.mean() < stat1.mean() + stat1.stddev() * 4.0);
    }

    stat1.dump();

    stat1.reset();
    CHECK(stat1.n == 0.0);

    auto timer = stat1.time_start();
    for(int i = 0; i < 20; i++) {
      stat1.sample_time(timer);
    }
  }

  fuc2::Set TESTS{
    .name="stats",
      .tests={
        TEST(test_basic_stats_tests),
      }
  };

}