);
  }

  #[test]
  fn from_str() {
    assert_eq!(
      "1111111111111111111111111111111111111111111111111111111111111111i1"
        .parse::<InscriptionId>()
        .unwrap(),
      inscription_id(1),
    );
    assert_eq!(
      "1111111111111111111111111111111111111111111111111111111111111111i4294967295"
        .parse::<InscriptionId>()
        .unwrap(),
      InscriptionId {
        txid: txid(1),
        index: 0xFFFFFFFF,
      },
    );
    assert_eq!(
      "1111111111111111111111111111111111111111111111111111111111111111i4294967295"
        .parse::<InscriptionId>()
        .unwrap(),
      InscriptionId {
        txid: txid(1),
        index: 0xFFFFFFFF,
      },
    );
  }

  #[test]
  fn from_str_bad_character() {
    assert_matches!(
      "→".parse::<InscriptionId>(),
      Err(ParseError::Character('→')),
    );
  }

  #[test]
  fn from_str_bad_length() {
    assert_matches!("foo".parse::<InscriptionId>(), Err(ParseError::Length(3)));
  }

  #[test]
  fn from_str_bad_separator() {
    assert_matches!(