blazehash 0.2.5

Forensic file hasher — hashdeep for the modern era, BLAKE3 by default
Documentation 
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use assert_cmd::Command;
use tempfile::TempDir;
use std::fs;

#[test]
fn test_convert_sha256sum_format() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("sums.txt");
    fs::write(&input, concat!(
        "aabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccdd  docs/a.pdf\n",
        "1122334411223344112233441122334411223344112233441122334411223344 *images/b.jpg\n",
    )).unwrap();
    let out = Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "sha256sum"])
        .output().unwrap();
    assert!(out.status.success(), "convert failed: {}", String::from_utf8_lossy(&out.stderr));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("sha256"), "output must declare sha256 algo");
    assert!(stdout.contains("docs/a.pdf"), "path must be present");
    assert!(stdout.contains("images/b.jpg"), "binary-mode asterisk path must be stripped");
}

#[test]
fn test_convert_md5sum_format() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("md5s.txt");
    fs::write(&input, "aabbccddaabbccddaabbccddaabbccdd  file.txt\n").unwrap();
    let out = Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "md5sum"])
        .output().unwrap();
    assert!(out.status.success());
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("md5"), "output must declare md5 algo");
    assert!(stdout.contains("file.txt"));
}

#[test]
fn test_convert_hashdeep_format() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("hashdeep.txt");
    fs::write(&input, concat!(
        "%%%% HASHDEEP-1.0\n",
        "%%%% size,md5,sha256,filename\n",
        "## Invoked from: /evidence\n",
        "## $ hashdeep -r /evidence\n",
        "## \n",
        "1024,aabbccddaabbccddaabbccddaabbccdd,",
        "aabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccdd,",
        "/evidence/file.bin\n",
    )).unwrap();
    let out = Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "hashdeep"])
        .output().unwrap();
    assert!(out.status.success(), "convert hashdeep failed: {}", String::from_utf8_lossy(&out.stderr));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("sha256") || stdout.contains("md5"), "must have algo");
    assert!(stdout.contains("file.bin"), "path must appear");
}

#[test]
fn test_convert_sfv_format() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("sums.sfv");
    fs::write(&input, concat!(
        "; SFV created by WinCRC32\n",
        "movie.mkv DEADBEEF\n",
        "subs.srt  CAFEBABE\n",
    )).unwrap();
    let out = Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "sfv"])
        .output().unwrap();
    assert!(out.status.success());
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("crc32") || stdout.contains("CRC"), "sfv is CRC32");
    assert!(stdout.contains("movie.mkv"));
}

#[test]
fn test_convert_output_to_file() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("sums.txt");
    fs::write(&input, "aabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccddaabbccdd  a.txt\n").unwrap();
    let out_path = dir.path().join("converted.hash");
    Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "sha256sum",
               "-o", out_path.to_str().unwrap()])
        .assert().success();
    let content = fs::read_to_string(&out_path).unwrap();
    assert!(content.contains("sha256"));
    assert!(content.contains("a.txt"));
}

#[test]
fn test_convert_unknown_format_fails() {
    let dir = TempDir::new().unwrap();
    let input = dir.path().join("x.txt");
    fs::write(&input, "data\n").unwrap();
    Command::cargo_bin("blazehash").unwrap()
        .args(["convert", input.to_str().unwrap(), "--from", "foobar"])
        .assert().failure();
}