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// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

generate_element!(
    /// Wrapper element for a rtcp-fb.
    RtcpFb, "rtcp-fb", JINGLE_RTCP_FB,
    attributes: [
        /// Type of this rtcp-fb.
        type_: Required<String> = "type",

        /// Subtype of this rtcp-fb, if relevant.
        subtype: Option<String> = "subtype",
    ]
);

#[cfg(test)]
mod tests {
    use super::*;
    use crate::Element;

    #[cfg(target_pointer_width = "32")]
    #[test]
    fn test_size() {
        assert_size!(RtcpFb, 24);
    }

    #[cfg(target_pointer_width = "64")]
    #[test]
    fn test_size() {
        assert_size!(RtcpFb, 48);
    }

    #[test]
    fn parse_simple() {
        let elem: Element =
            "<rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack' subtype='sli'/>"
                .parse()
                .unwrap();
        let rtcp_fb = RtcpFb::try_from(elem).unwrap();
        assert_eq!(rtcp_fb.type_, "nack");
        assert_eq!(rtcp_fb.subtype.unwrap(), "sli");
    }
}