// Copyright (c) 2017 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/.

use message::MessagePayload;

generate_empty_element!(
    /// Requests the attention of the recipient.
    Attention, "attention", ATTENTION
);

impl MessagePayload for Attention {}

#[cfg(test)]
mod tests {
    use super::*;
    use try_from::TryFrom;
    use minidom::Element;
    use error::Error;

    #[test]
    fn test_simple() {
        let elem: Element = "<attention xmlns='urn:xmpp:attention:0'/>".parse().unwrap();
        Attention::try_from(elem).unwrap();
    }

    #[test]
    fn test_invalid_child() {
        let elem: Element = "<attention xmlns='urn:xmpp:attention:0'><coucou/></attention>".parse().unwrap();
        let error = Attention::try_from(elem).unwrap_err();
        let message = match error {
            Error::ParseError(string) => string,
            _ => panic!(),
        };
        assert_eq!(message, "Unknown child in attention element.");
    }

    #[test]
    fn test_invalid_attribute() {
        let elem: Element = "<attention xmlns='urn:xmpp:attention:0' coucou=''/>".parse().unwrap();
        let error = Attention::try_from(elem).unwrap_err();
        let message = match error {
            Error::ParseError(string) => string,
            _ => panic!(),
        };
        assert_eq!(message, "Unknown attribute in attention element.");
    }

    #[test]
    fn test_serialise() {
        let elem: Element = "<attention xmlns='urn:xmpp:attention:0'/>".parse().unwrap();
        let attention = Attention;
        let elem2: Element = attention.into();
        assert_eq!(elem, elem2);
    }
}