Function test_derive

zeroize_derive/src/lib.rs:430–437

(
        f: impl Fn(DeriveInput) -> TokenStream,
        input: TokenStream,
        expected_output: TokenStream,
    )

    #[track_caller]
    fn test_derive(
        f: impl Fn(DeriveInput) -> TokenStream,
        input: TokenStream,
        expected_output: TokenStream,
    ) {
        let output = f(syn::parse2(input).unwrap());
        assert_eq!(format!("{output}"), format!("{expected_output}"));
    }

    #[track_caller]
    fn parse_zeroize_test(unparsed: &str) -> TokenStream {