in src/utils/mod.rs [717:727]
fn test_local_sign_key_data_from_invalid_cert_key_info() -> Result<(), std::io::Error> {
let key_file_path = generate_pkey_file()?;
let key_path_str = <TempPath as AsRef<Path>>::as_ref(&key_file_path)
.to_str()
.expect("Key file must be correct");
let key_data = SignKeyData::new(key_path_str, Path::new("/incorrect/cert/path"));
assert!(key_data.is_err());
Ok(())
}