dochy_fs 0.10.1

use crate::error::FsResult;
use std::env::temp_dir;
use crate::test_simple_history::simple_diff::sd_data::SdData;
use rand::Rng;
use crate::test_simple_history::simple_diff::sd_cache::SdCache;
use crate::imp::history::algo::history_options::{HistoryOptionsBuilder, CumulativeOptionsBuilder};
use crate::imp::history::fs::load::load;
use crate::imp::history::file_hist::create_file_history::create_file_history;
use crate::imp::history::fs::next::_next;
use crate::test_simple_history::show_dir_contents_history::show_history_dir;

///通常のシナリオでhistoryシステムが動いてるか確認。主に目視で。
//#[test]
fn test_simple_diff_files() -> FsResult<()> {
    let dir = temp_dir();
    let mut rng = rand::thread_rng();
    let dir_name = format!("test_simple_diff_{}",rng.gen_range(0..100_000_000));
    let dir = dir.join(&dir_name);
    //std::filesys::remove_dir(&dir).ok();
    std::fs::create_dir(&dir).ok();

    let op =
        HistoryOptionsBuilder::new()
            .max_phase(2)
        .update_phase_0(true)
            .cumulative(Some(CumulativeOptionsBuilder::new()
                            .limit_nth(Some(2))
                            .limit_count(Some(100))))
            .build()?;


    let mut data : SdData = SdData::new(None);
    let mut cache = SdCache::new(None);
    let repeat = 100;
    for _rep in 0..repeat{
        let n = rng.gen_range(1..=3);

        for _ in 0..n {
            data.mutate_randomly();
        }

        _next(None, &data, &mut cache, &dir, &op)?;
        let history = create_file_history(&dir, op.max_phase(), op.cumulative().is_some())?;

        let loaded = load(&history.newest_file_path(&dir)?, &history, cache.create_root(), &mut cache, &op)?;
        assert_eq!(loaded, data)
    }

    //ちゃんとCumulativeOptionで設定したとおりに動いてるか頑張って確認してもいいが、
    //難しすぎて見合わない気がするので目視で適当に見る
    show_history_dir(&dir)?;

    Ok(())
}