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serde-issues.rs
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serde-issues.rs
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//! Regression tests found in various issues with serde integration.
//!
//! Name each module / test as `issue<GH number>` and keep sorted by issue number
use pretty_assertions::assert_eq;
use quick_xml::de::from_str;
use quick_xml::se::to_string;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
/// Regression tests for https://github.com/tafia/quick-xml/issues/252.
mod issue252 {
use super::*;
use pretty_assertions::assert_eq;
#[test]
fn attributes() {
#[derive(Serialize, Debug, PartialEq)]
struct OptionalAttributes {
#[serde(rename = "@a")]
a: Option<&'static str>,
#[serde(rename = "@b")]
#[serde(skip_serializing_if = "Option::is_none")]
b: Option<&'static str>,
}
assert_eq!(
to_string(&OptionalAttributes { a: None, b: None }).unwrap(),
r#"<OptionalAttributes a=""/>"#
);
assert_eq!(
to_string(&OptionalAttributes {
a: Some(""),
b: Some("")
})
.unwrap(),
r#"<OptionalAttributes a="" b=""/>"#
);
assert_eq!(
to_string(&OptionalAttributes {
a: Some("a"),
b: Some("b")
})
.unwrap(),
r#"<OptionalAttributes a="a" b="b"/>"#
);
}
#[test]
fn elements() {
#[derive(Serialize, Debug, PartialEq)]
struct OptionalElements {
a: Option<&'static str>,
#[serde(skip_serializing_if = "Option::is_none")]
b: Option<&'static str>,
}
assert_eq!(
to_string(&OptionalElements { a: None, b: None }).unwrap(),
r#"<OptionalElements><a/></OptionalElements>"#
);
assert_eq!(
to_string(&OptionalElements {
a: Some(""),
b: Some("")
})
.unwrap(),
r#"<OptionalElements><a/><b/></OptionalElements>"#
);
assert_eq!(
to_string(&OptionalElements {
a: Some("a"),
b: Some("b")
})
.unwrap(),
r#"<OptionalElements><a>a</a><b>b</b></OptionalElements>"#
);
}
}
/// Regression test for https://github.com/tafia/quick-xml/issues/343.
#[test]
fn issue343() {
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct Users {
users: HashMap<String, User>,
}
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct Max(u16);
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct User {
max: Max,
}
let xml = "<Users>\
<users>\
<roger>\
<max>10</max>\
</roger>\
</users>\
</Users>";
let users: Users = from_str(xml).unwrap();
assert_eq!(
users,
Users {
users: HashMap::from([("roger".to_string(), User { max: Max(10) })]),
}
);
assert_eq!(to_string(&users).unwrap(), xml);
}
/// Regression test for https://github.com/tafia/quick-xml/issues/349.
#[test]
fn issue349() {
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct Entity {
id: Id,
}
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct Id {
#[serde(rename = "$value")]
content: Enum,
}
#[derive(Debug, Deserialize, Serialize, PartialEq)]
#[serde(rename_all = "kebab-case")]
enum Enum {
A(String),
B(String),
}
assert_eq!(
from_str::<Entity>("<entity><id><a>Id</a></id></entity>").unwrap(),
Entity {
id: Id {
content: Enum::A("Id".to_string()),
}
}
);
}
/// Regression test for https://github.com/tafia/quick-xml/issues/429.
#[test]
fn issue429() {
#[derive(Debug, Deserialize, Serialize, PartialEq)]
enum State {
A,
B,
C,
}
#[derive(Debug, Deserialize, Serialize, PartialEq)]
struct StateOuter {
#[serde(rename = "$text")]
state: State,
}
#[derive(Debug, Deserialize, Serialize, PartialEq)]
pub struct Root {
state: StateOuter,
}
assert_eq!(
from_str::<Root>("<root><state>B</state></root>").unwrap(),
Root {
state: StateOuter { state: State::B }
}
);
assert_eq!(
to_string(&Root {
state: StateOuter { state: State::B }
})
.unwrap(),
"<Root><state>B</state></Root>"
);
}
/// Regression test for https://github.com/tafia/quick-xml/issues/537.
///
/// This test checks that special `xmlns:xxx` attributes uses full name of
/// an attribute (xmlns:xxx) as a field name instead of just local name of
/// an attribute (xxx)
mod issue537 {
use super::*;
use pretty_assertions::assert_eq;
#[derive(Debug, PartialEq, Deserialize, Serialize)]
struct Bindings<'a> {
/// Default namespace binding
#[serde(rename = "@xmlns")]
xmlns: &'a str,
/// Named namespace binding
#[serde(rename = "@xmlns:named")]
xmlns_named: &'a str,
/// Usual attribute
#[serde(rename = "@attribute")]
attribute: &'a str,
}
#[test]
fn de() {
assert_eq!(
from_str::<Bindings>(
r#"<Bindings xmlns="default" xmlns:named="named" attribute="attribute"/>"#
)
.unwrap(),
Bindings {
xmlns: "default",
xmlns_named: "named",
attribute: "attribute",
}
);
}
#[test]
fn se() {
assert_eq!(
to_string(&Bindings {
xmlns: "default",
xmlns_named: "named",
attribute: "attribute",
})
.unwrap(),
r#"<Bindings xmlns="default" xmlns:named="named" attribute="attribute"/>"#
);
}
}