use pretty_assertions::assert_eq;

use super::*;

#[test]
fn recent_invocations_refresh_recency_and_evict_old_skills() {
    let history = RecentSkillInvocations::default();
    for index in 0..=MAX_SHADOW_RESULTS {
        history.record(format!("skill-{index}"));
    }
    history.record("skill-1".to_string());

    let recent = history.snapshot();

    assert_eq!(MAX_SHADOW_RESULTS, recent.len());
    assert_eq!(Some("skill-1"), recent.first().map(String::as_str));
    assert_eq!(Some("skill-2"), recent.last().map(String::as_str));
    assert!(!recent.iter().any(|skill| skill == "skill-0"));
}

#[test]
fn rank_buckets_distinguish_results_above_twenty() {
    assert_eq!("11_20", rank_bucket(Some(20)));
    assert_eq!("21_50", rank_bucket(Some(21)));
    assert_eq!("21_50", rank_bucket(Some(50)));
    assert_eq!("miss", rank_bucket(Some(51)));
}