6ef8dbefa3
This is a large change and as such, it needs good motivation. Let me remind you of the ultimate goal: we want a derive macro which allows us to FromXml/IntoXml, and that derive macro should be usable from `xmpp_parsers` and other crates. For that, any code generated by the derive macro mustn't depend on any code in the `xmpp_parsers` crate, because you cannot name the crate you are in portably (`xmpp_parsers::..` wouldn't resolve within `xmpp_parsers`, and `crate::..` would point at other crates if the macro was used in other crates). We also want to interoperate with code already implementing `TryFrom<Element>` and `Into<Element>` on structs. This ultimately requires that we have an error type which is shared by the two implementations and that error type must be declared in the `xso` crate to be usable by the macros. Thus, we port the error type over to use the type declared in `xso`. This changes the structure of the error type greatly; I do not think that `xso` should have to know about all the different types we are parsing there and they don't deserve special treatment. Wrapping them in a `Box<dyn ..>` seems more appropriate.
70 lines
2 KiB
Rust
70 lines
2 KiB
Rust
// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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// Copyright (c) 2017 Maxime “pep” Buquet <pep@bouah.net>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use crate::iq::IqGetPayload;
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generate_empty_element!(
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/// Represents a ping to the recipient, which must be answered with an
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/// empty `<iq/>` or with an error.
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Ping,
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"ping",
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PING
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);
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impl IqGetPayload for Ping {}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::Element;
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#[cfg(not(feature = "disable-validation"))]
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use xso::error::{Error, FromElementError};
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#[test]
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fn test_size() {
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assert_size!(Ping, 0);
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}
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#[test]
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fn test_simple() {
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let elem: Element = "<ping xmlns='urn:xmpp:ping'/>".parse().unwrap();
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Ping::try_from(elem).unwrap();
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}
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#[test]
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fn test_serialise() {
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let elem1 = Element::from(Ping);
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let elem2: Element = "<ping xmlns='urn:xmpp:ping'/>".parse().unwrap();
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assert_eq!(elem1, elem2);
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}
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#[cfg(not(feature = "disable-validation"))]
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#[test]
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fn test_invalid() {
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let elem: Element = "<ping xmlns='urn:xmpp:ping'><coucou/></ping>"
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.parse()
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.unwrap();
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let error = Ping::try_from(elem).unwrap_err();
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let message = match error {
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FromElementError::Invalid(Error::Other(string)) => string,
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_ => panic!(),
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};
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assert_eq!(message, "Unknown child in ping element.");
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}
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#[cfg(not(feature = "disable-validation"))]
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#[test]
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fn test_invalid_attribute() {
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let elem: Element = "<ping xmlns='urn:xmpp:ping' coucou=''/>".parse().unwrap();
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let error = Ping::try_from(elem).unwrap_err();
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let message = match error {
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FromElementError::Invalid(Error::Other(string)) => string,
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_ => panic!(),
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};
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assert_eq!(message, "Unknown attribute in ping element.");
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}
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}
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