cbz2pdf/tests/cbr_reader_tests.rs

use std::fs::File;
use std::io::Write;

use cbz2pdf::formats::cbr::CbrReader;
use cbz2pdf::formats::FormatReader;

// We cannot reliably create a RAR archive in tests (tools cannot create .rar),
// Instead, verify that the reader fails gracefully (returns an error) when given an invalid .cbr
// file.
#[test]
fn cbr_reader_errors_on_invalid_archive() {
    let temp_dir = tempfile::tempdir().expect("create temp dir");
    let cbr_path = temp_dir.path().join("invalid.cbr");

    // Write some junk that is definitely not a RAR archive
    let mut f = File::create(&cbr_path).expect("create cbr");
    f.write_all(b"this is not a rar archive").unwrap();

    let reader = CbrReader;
    let res = reader.read(&cbr_path);

    assert!(res.is_err(), "CbrReader should error on invalid archives");
}