Cannot deserialize empty tuple variant

[jbearer]

serde_json version 1.0.108
serde version 1.0.192

Deserializing an empty tuple variant of an enum from a Value fails. Deserializing a unit variant succeeds.

#[test]
fn test_serde_json() {
    use serde::{Deserialize, Serialize};

    #[derive(Debug, PartialEq, Eq, Deserialize, Serialize)]
    enum Test {
        V1,
        V2(),
    }

    for v in [Test::V1, Test::V2()] {
        println!("testing {v:?}");
        let json = serde_json::to_value(&v).unwrap();
        println!("serializes to {json}");
        assert_eq!(v, serde_json::from_value(json).unwrap());
    }
}

Outputs:

testing V1
serializes to "V1"
testing V2
serializes to {"V2":[]}

And then panics when trying to deserialize V2():

called `Result::unwrap()` on an `Err` value: Error("invalid type: null, expected tuple variant Test::V2", line: 0, column: 0)

[zhangboqi]

hello, how to resolve the problem?