Problem deserializing a struct that can be serialized

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Issue 类型
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rust
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backend

调研方向

Start with the issue’s minimal Rust example and its failing deserialization tests, especially the Source enum and the source field’s serde(rename = "Source") attribute. Check quick-xml’s deserialization behavior for repeated XML elements and enum values; done means the shown XML deserializes to the expected Sources values while the serialization test still passes.

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描述

arrays bug help wanted serde

I have a Problem de serializing the following xml

<Sources>
    <Source>A</Source>
    <Source>B</Source>
</Sources>

This is my current attempt

/*
[dependencies]
serde = { version = "1.0", features = ["derive"] }
quick-xml = {version="0.31", features = ["serialize"]}
*/
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug, PartialEq)]
struct Sources {
    #[serde(rename = "Source")]
    source: Vec<Source>,
}

#[derive(Serialize, Deserialize, Debug, PartialEq)]
enum Source {
    A,
    B,
}

#[cfg(test)]
mod tests {

    use quick_xml::de::from_str;

    use super::*;
    #[test]
    fn test_serialize_sources() {
        let sources = Sources {
            source: vec![Source::A, Source::B],
        };
        let xml = r#"<Sources><Source>A</Source><Source>B</Source></Sources>"#;
        let serialized = to_string(&sources).expect("Failed to serialize sources"); // Use the to_string function from quick_xml
        assert_eq!(serialized, xml);
    }
    #[test]
    fn test_deserialize_sources(){
        let xml = r#"<Sources><Source>A</Source><Source>B</Source></Sources>"#;
        let sources = Sources{ source: vec![Source::A, Source::B]};
        let deserialize = from_str::<Sources>(&xml).expect("Failed to deserialize sources");
        assert_eq!(deserialize, sources);
    }
    #[test]
    fn test_deserialize_source(){
        let xml = r#"<Sources><Source>B</Source></Sources>"#;
        let sources = Sources{ source: vec![Source::B]};
        let deserialize = from_str::<Sources>(&xml).expect("Failed to deserialize sources");
        assert_eq!(deserialize, sources);
    }
        
}

which fails with the following error

running 3 tests
test tests::test_deserialize_sources ... FAILED
test tests::test_serialize_sources ... ok
test tests::test_deserialize_source ... FAILED

failures:

---- tests::test_deserialize_sources stdout ----
thread 'tests::test_deserialize_sources' panicked at src/main.rs:45:53:
Failed to deserialize sources: Custom("unknown variant `Source`, expected `A` or `B`")
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

---- tests::test_deserialize_source stdout ----
thread 'tests::test_deserialize_source' panicked at src/main.rs:54:53:
Failed to deserialize sources: Custom("unknown variant `Source`, expected `A` or `B`")


failures:
    tests::test_deserialize_source
    tests::test_deserialize_sources

test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

error: test failed, to rerun pass `--bin example_issue_quick_xml`
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