serde_with 2.0.0-rc.0

#![allow(
    // clippy is broken and shows wrong warnings
    // clippy on stable does not know yet about the lint name
    unknown_lints,
    // https://github.com/rust-lang/rust-clippy/issues/8867
    clippy::derive_partial_eq_without_eq,
)]

mod utils;

use crate::utils::is_equal;
use expect_test::expect;
use serde::{Deserialize, Serialize};
use serde_with::{json::JsonString, serde_as, DisplayFromStr};

#[test]
fn test_nested_json() {
    #[serde_as]
    #[derive(Debug, Serialize, Deserialize, PartialEq)]
    struct Struct {
        #[serde_as(as = "JsonString")]
        value: Nested,
    }

    #[serde_as]
    #[derive(Debug, Serialize, Deserialize, PartialEq)]
    struct Nested {
        #[serde_as(as = "DisplayFromStr")]
        value: u32,
    }

    is_equal(
        Struct {
            value: Nested { value: 444 },
        },
        expect![[r#"
            {
              "value": "{\"value\":\"444\"}"
            }"#]],
    );
}