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// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
// Copyright (c) 2017 Maxime “pep” Buquet <pep@bouah.net>
//
// 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 crate::iq::IqGetPayload;

generate_empty_element!(
    /// Represents a ping to the recipient, which must be answered with an
    /// empty `<iq/>` or with an error.
    Ping,
    "ping",
    PING
);

impl IqGetPayload for Ping {}

#[cfg(test)]
mod tests {
    use super::*;
    #[cfg(not(feature = "disable-validation"))]
    use crate::util::error::Error;
    use crate::Element;

    #[test]
    fn test_size() {
        assert_size!(Ping, 0);
    }

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

    #[test]
    fn test_serialise() {
        let elem1 = Element::from(Ping);
        let elem2: Element = "<ping xmlns='urn:xmpp:ping'/>".parse().unwrap();
        assert_eq!(elem1, elem2);
    }

    #[cfg(not(feature = "disable-validation"))]
    #[test]
    fn test_invalid() {
        let elem: Element = "<ping xmlns='urn:xmpp:ping'><coucou/></ping>"
            .parse()
            .unwrap();
        let error = Ping::try_from(elem).unwrap_err();
        let message = match error {
            Error::ParseError(string) => string,
            _ => panic!(),
        };
        assert_eq!(message, "Unknown child in ping element.");
    }

    #[cfg(not(feature = "disable-validation"))]
    #[test]
    fn test_invalid_attribute() {
        let elem: Element = "<ping xmlns='urn:xmpp:ping' coucou=''/>".parse().unwrap();
        let error = Ping::try_from(elem).unwrap_err();
        let message = match error {
            Error::ParseError(string) => string,
            _ => panic!(),
        };
        assert_eq!(message, "Unknown attribute in ping element.");
    }
}