use std::{path::PathBuf, sync::atomic::AtomicBool}; use git_features::progress;use git_testtools::{fixture_path, hex_to_id}; #[test]fn from_paths() -> crate::Result {    let dir = tempfile::TempDir::new()?;    let input_indices = std::fs::read_dir(fixture_path("objects/pack"))?        .filter_map(|r| {            r.ok()                .map(|e| e.path())                .filter(|p| p.extension().and_then(|e| e.to_str()).unwrap_or("") == "idx")        })        .collect::<Vec<_>>();    assert_eq!(input_indices.len(), 3);    let output_path = dir.path().join("multi-pack-index");    let mut out = std::fs::OpenOptions::new()        .write(true)        .create_new(true)        .open(&output_path)?;    let outcome = git_pack::multi_index::File::write_from_index_paths(        input_indices.clone(),        &mut out,        progress::Discard,        &AtomicBool::new(false),        git_pack::multi_index::write::Options {            object_hash: git_hash::Kind::Sha1,        },    )?;     assert_eq!(        outcome.multi_index_checksum,        hex_to_id("d34d327039a3554f8a644b29e07b903fa71ef269")    );     let file = git_pack::multi_index::File::at(output_path)?;    assert_eq!(file.num_indices(), 3);    assert_eq!(        file.index_names(),        vec![            PathBuf::from("pack-11fdfa9e156ab73caae3b6da867192221f2089c2.idx"),            PathBuf::from("pack-a2bf8e71d8c18879e499335762dd95119d93d9f1.idx"),            PathBuf::from("pack-c0438c19fb16422b6bbcce24387b3264416d485b.idx"),        ]    );    assert_eq!(file.num_objects(), 139);    assert_eq!(file.checksum(), outcome.multi_index_checksum);     for index in &input_indices {        std::fs::copy(index, dir.path().join(index.file_name().expect("present")))?;        let pack = index.with_extension("pack");        std::fs::copy(&pack, dir.path().join(pack.file_name().expect("present")))?;    }     assert_eq!(        file.verify_integrity(progress::Discard, &AtomicBool::new(false), Default::default())?            .actual_index_checksum,        outcome.multi_index_checksum    );     let outcome = file.verify_integrity_fast(progress::Discard, &AtomicBool::new(false))?;     assert_eq!(outcome.0, file.checksum());    Ok(())}