// Copyright (c) 2017 Emmanuel Gil Peyrot // // 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 std::convert::TryFrom; use minidom::Element; use chrono::prelude::*; use error::Error; use ns; #[derive(Debug, Clone)] pub struct Idle { pub since: DateTime, } impl TryFrom for Idle { type Error = Error; fn try_from(elem: Element) -> Result { if !elem.is("idle", ns::IDLE) { return Err(Error::ParseError("This is not an idle element.")); } for _ in elem.children() { return Err(Error::ParseError("Unknown child in idle element.")); } let since = get_attr!(elem, "since", required, since, DateTime::parse_from_rfc3339(since)?); Ok(Idle { since: since }) } } impl Into for Idle { fn into(self) -> Element { Element::builder("idle") .ns(ns::IDLE) .attr("since", self.since.to_rfc3339()) .build() } } #[cfg(test)] mod tests { use super::*; use std::error::Error as StdError; #[test] fn test_simple() { let elem: Element = "".parse().unwrap(); Idle::try_from(elem).unwrap(); } #[test] fn test_invalid_child() { let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ParseError(string) => string, _ => panic!(), }; assert_eq!(message, "Unknown child in idle element."); } #[test] fn test_invalid_id() { let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ParseError(string) => string, _ => panic!(), }; assert_eq!(message, "Required attribute 'since' missing."); } #[test] fn test_invalid_date() { // There is no thirteenth month. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "input is out of range"); // Timezone ≥24:00 aren’t allowed. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "input is out of range"); // Timezone without the : separator aren’t allowed. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "input contains invalid characters"); // No seconds, error message could be improved. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "input contains invalid characters"); // TODO: maybe we’ll want to support this one, as per XEP-0082 §4. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "input contains invalid characters"); // No timezone. let elem: Element = "".parse().unwrap(); let error = Idle::try_from(elem).unwrap_err(); let message = match error { Error::ChronoParseError(string) => string, _ => panic!(), }; assert_eq!(message.description(), "premature end of input"); } #[test] fn test_serialise() { let elem: Element = "".parse().unwrap(); let idle = Idle { since: DateTime::parse_from_rfc3339("2017-05-21T20:19:55+01:00").unwrap() }; let elem2 = idle.into(); assert_eq!(elem, elem2); } }