&[],
        b"ord",
      ])]),
      vec![ParsedEnvelope {
        payload: inscription("text/plain;charset=utf-8", "ord"),
        ..Default::default()
      }]
    );
  }

  #[test]
  fn with_content_encoding() {
    assert_eq!(
      parse(&[envelope(&[
        b"ord",
        &[1],
        b"text/plain;charset=utf-8",
        &[9],
        b"br",
        &[],
        b"ord",
      ])]),
      vec![ParsedEnvelope {
        payload: Inscription {
          content_encoding: Some("br".as_bytes().to_vec()),
          ..inscription("text/plain;charset=utf-8", "ord")
        },
        ..Default::default()
      }]
    );
  }

  #[test]
  fn with_unknown_tag() {
    assert_eq!(
      parse(&[envelope(&[
        b"ord",
        &[1],
        b"text/plain;charset=utf-8",
        &[11],
        b"bar",
        &[],
        b"ord",
      ])]),
      vec![ParsedEnvelope {
        payload: inscription("text/plain;charset=utf-8", "ord"),
        ..Default::default()
      }]
    );
  }

  #[test]
  fn no_body() {