1// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
 2//
 3// This Source Code Form is subject to the terms of the Mozilla Public
 4// License, v. 2.0. If a copy of the MPL was not distributed with this
 5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 6
 7use try_from::TryFrom;
 8
 9use minidom::Element;
10
11use error::Error;
12
13use ns;
14
15#[derive(Debug, Clone)]
16pub struct Replace {
17    pub id: String,
18}
19
20impl TryFrom<Element> for Replace {
21    type Err = Error;
22
23    fn try_from(elem: Element) -> Result<Replace, Error> {
24        check_self!(elem, "replace", ns::MESSAGE_CORRECT);
25        check_no_children!(elem, "replace");
26        check_no_unknown_attributes!(elem, "replace", ["id"]);
27        let id = get_attr!(elem, "id", required);
28        Ok(Replace { id })
29    }
30}
31
32impl From<Replace> for Element {
33    fn from(replace: Replace) -> Element {
34        Element::builder("replace")
35                .ns(ns::MESSAGE_CORRECT)
36                .attr("id", replace.id)
37                .build()
38    }
39}
40
41#[cfg(test)]
42mod tests {
43    use super::*;
44
45    #[test]
46    fn test_simple() {
47        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0' id='coucou'/>".parse().unwrap();
48        Replace::try_from(elem).unwrap();
49    }
50
51    #[test]
52    fn test_invalid_attribute() {
53        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0' coucou=''/>".parse().unwrap();
54        let error = Replace::try_from(elem).unwrap_err();
55        let message = match error {
56            Error::ParseError(string) => string,
57            _ => panic!(),
58        };
59        assert_eq!(message, "Unknown attribute in replace element.");
60    }
61
62    #[test]
63    fn test_invalid_child() {
64        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'><coucou/></replace>".parse().unwrap();
65        let error = Replace::try_from(elem).unwrap_err();
66        let message = match error {
67            Error::ParseError(string) => string,
68            _ => panic!(),
69        };
70        assert_eq!(message, "Unknown child in replace element.");
71    }
72
73    #[test]
74    fn test_invalid_id() {
75        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'/>".parse().unwrap();
76        let error = Replace::try_from(elem).unwrap_err();
77        let message = match error {
78            Error::ParseError(string) => string,
79            _ => panic!(),
80        };
81        assert_eq!(message, "Required attribute 'id' missing.");
82    }
83
84    #[test]
85    fn test_serialise() {
86        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0' id='coucou'/>".parse().unwrap();
87        let replace = Replace { id: String::from("coucou") };
88        let elem2 = replace.into();
89        assert_eq!(elem, elem2);
90    }
91}