Lucas RayanandClaude Sonnet 5.5
b89d5dd490
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
64 lines
2.6 KiB
Rust
64 lines
2.6 KiB
Rust
//! AFF4: imagens de referência da Evimetry (github.com/aff4/ReferenceImages) e ida e volta.
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use guara_core::aff4::{write_aff4, Aff4Options, Aff4Source};
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use guara_core::source::{open_path, read_vec, MemSource, Source};
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use std::path::PathBuf;
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fn dir() -> PathBuf {
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../../target/testdata/aff4")
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}
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#[test]
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fn reads_reference_images_and_stored_hash_matches() {
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let mut seen = 0;
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for name in ["Base-Linear.aff4", "Base-Allocated.aff4", "Base-Linear-AllHashes.aff4"] {
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let p = dir().join(name);
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if !p.exists() {
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eprintln!("SKIP {name}");
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continue;
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}
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let a = Aff4Source::open(&p).unwrap_or_else(|e| panic!("{name}: {e}"));
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assert_eq!(a.size(), 268_435_456, "{name}");
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assert_eq!(a.verify_stream_md5().unwrap(), Some(true), "{name}: hash do fluxo");
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// setor 0 legível pelo caminho genérico
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let s = open_path(&p).unwrap();
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let head = read_vec(s.as_ref(), 0, 4096).unwrap();
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assert_eq!(head.len(), 4096);
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// leitura em vãos do mapa devolve zeros
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let far = read_vec(s.as_ref(), 200 << 20, 512).unwrap();
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assert_eq!(far.len(), 512);
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eprintln!("{name}: {} {:?}", a.info.get("Examinador").cloned().unwrap_or_default(), guara_core::partition::detect_fs_in(&read_vec(s.as_ref(), 0, 4096).unwrap()).map(|x| x.0));
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seen += 1;
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}
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if seen == 0 {
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eprintln!("SKIP: execute scripts/fetch-testdata.sh");
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}
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}
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#[test]
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fn roundtrip_with_snappy_blocks_and_odd_size() {
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let mut x = 77u64;
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let mut data: Vec<u8> = (0..5_000_001u32)
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.map(|i| {
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x ^= x << 13;
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x ^= x >> 7;
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x ^= x << 17;
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if i % 100_000 < 60_000 { 0 } else { (x >> 24) as u8 }
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})
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.collect();
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data.truncate(5_000_001);
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let dir = tempfile::tempdir().unwrap();
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let p = dir.path().join("t.aff4");
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let opts = Aff4Options { case_name: "caso".into(), examiner: "Lucas".into(), notes: "teste".into(), ..Default::default() };
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let rep = write_aff4(&MemSource(data.clone()), &p, &opts, &|| false, &mut |_, _| {}).unwrap();
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let a = Aff4Source::open(&p).unwrap();
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assert_eq!(a.size(), data.len() as u64);
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assert_eq!(a.info.get("md5").map(String::as_str), Some(rep.md5.as_str()));
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assert_eq!(a.info.get("Examinador").map(String::as_str), Some("Lucas"));
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assert_eq!(a.verify_stream_md5().unwrap(), Some(true));
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let got = read_vec(&a, 0, data.len()).unwrap();
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assert!(got == data);
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let part = read_vec(&a, 123_456, 70_000).unwrap();
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assert_eq!(part, &data[123_456..193_456]);
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}
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