#[macro_use]
extern crate criterion;
extern crate variant;

use criterion::Criterion;
use criterion::black_box;

use variety::experiments;

fn generate_variant_max(n: u64) -> Vec<u8> {
    (0..n).map(|_| {
        255
    }).collect()
}

fn low_length_experiment_generation(c: &mut Criterion) {
    c.bench_function("generate 100 experiments", |b| {
        let variants = black_box(generate_variant_max(100));
        b.iter(|| experiments(black_box(0), &variants))
    });
}

fn high_length_experiment_generation(c: &mut Criterion) {
    c.bench_function("generate 10,000 experiments", |b| {
        let variants = black_box(generate_variant_max(10_000));
        b.iter(|| experiments(black_box(0), &variants))
    });
}

fn extreme_length_experiment_generation(c: &mut Criterion) {
    let mut sized = c.benchmark_group("reduced_sample");
    sized.bench_function("generate 100,000,000 experiments", |b| {
        let variants = black_box(generate_variant_max(100_000_000));
        b.iter(|| experiments(black_box(0), &variants))
    });
}

criterion_group!(experiments_generation, 
                 low_length_experiment_generation, 
                 high_length_experiment_generation,
                 extreme_length_experiment_generation);

criterion_main!(experiments_generation);