vec![ParsedEnvelope {
        payload: Inscription::default(),
        ..Default::default()
      }],
    );
  }

  #[test]
  fn unknown_odd_fields_are_ignored() {
    assert_eq!(
      parse(&[envelope(&[b"ord", &[11], &[0]])]),
      vec![ParsedEnvelope {
        payload: Inscription::default(),
        ..Default::default()
      }],
    );
  }

  #[test]
  fn unknown_even_fields() {
    assert_eq!(
      parse(&[envelope(&[b"ord", &[22], &[0]])]),
      vec![ParsedEnvelope {
        payload: Inscription {
          unrecognized_even_field: true,
          ..Default::default()
        },
        ..Default::default()
      }],
    );
  }

  #[test]
  fn pointer_field_is_recognized() {
    assert_eq!(
      parse(&[envelope(&[b"ord", &[2], &[1]])]),
      vec![ParsedEnvelope {
        payload: Inscription {
          pointer: Some(vec![1]),
          ..Default::default()
        },
        ..Default::default()
      }],
    );
  }

  #[test]
  fn duplicate_pointer_field_makes_inscription_unbound() {
    assert_eq!(