Lucas RayanandClaude Sonnet 5.5
a9ac1dddba
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
57 lines
2.3 KiB
Rust
57 lines
2.3 KiB
Rust
//! HFS+: imagem real do dfvfs (target/testdata/dfvfs/hfsplus.raw) e exclusão simulada de registros.
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mod common;
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use common::*;
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use guara_core::*;
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fn image() -> Option<Vec<u8>> {
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let p = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../../target/testdata/dfvfs/hfsplus.raw");
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p.exists().then(|| std::fs::read(p).unwrap())
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}
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fn scan_bytes(bytes: &[u8]) -> Collect {
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init();
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let dir = tempfile::tempdir().unwrap();
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let p = dir.path().join("h.img");
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std::fs::write(&p, bytes).unwrap();
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scan_path(&p, &ScanOptions { mode: ScanMode::Quick, ..Default::default() })
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}
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#[test]
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fn pristine_volume_has_no_deleted_files_and_is_recognized() {
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let Some(img) = image() else {
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eprintln!("SKIP: execute scripts/fetch-testdata.sh");
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return;
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};
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let c = scan_bytes(&img);
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assert_eq!(c.layout.as_ref().unwrap().partitions[0].fs, FsKind::HfsPlus);
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assert!(c.found.is_empty(), "{:?}", c.found.iter().map(|f| &f.name).collect::<Vec<_>>());
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}
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#[test]
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fn record_left_in_leaf_slack_is_recovered() {
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let Some(mut img) = image() else { return };
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let bs = 4096usize;
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let node = 186 * bs + bs; // catálogo começa no bloco 186; nó 1 é a única folha
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// Remove os 5 últimos registros como o driver faz ao apagar no fim do nó: só diminui a contagem.
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img[node + 10..node + 12].copy_from_slice(&21u16.to_be_bytes());
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// Libera o bloco de dados (bitmap de alocação no bloco 1).
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let blk = 278usize;
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img[bs + blk / 8] &= !(0x80 >> (blk % 8));
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let c = scan_bytes(&img);
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let f = c.found.iter().find(|f| f.name == "fseventsd-uuid").unwrap_or_else(|| panic!("{:?}", c.found.iter().map(|f| &f.name).collect::<Vec<_>>()));
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assert_eq!(f.origin, Origin::Hfs);
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assert_eq!(f.size, 36);
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assert_eq!(f.dir.as_deref(), Some("/.fseventsd"));
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assert!(f.confidence >= Confidence::Medium);
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let dir = tempfile::tempdir().unwrap();
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let p = dir.path().join("h.img");
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std::fs::write(&p, &img).unwrap();
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let out = dir.path().join("out");
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let rep = recover_all(&p, std::slice::from_ref(f), &out);
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assert!(rep.failed.is_empty());
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let rp = std::path::PathBuf::from(&rep.recovered[0].path);
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let got = std::fs::read(if rp.is_absolute() { rp } else { out.join(rp) }).unwrap();
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assert_eq!(got, &img[blk * bs..blk * bs + 36]);
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}
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