use async_graphql::*;

#[async_std::test]
pub async fn test_mut_args() {
    struct Query;

    #[Object]
    impl Query {
        async fn test(&self, mut a: i32, mut b: String) -> String {
            a += 1;
            b += "a";
            format!("{}{}", a, b)
        }
    }

    let schema = Schema::build(Query, EmptyMutation, EmptySubscription).finish();
    assert_eq!(
        schema
            .execute("{ test(a: 10, b: \"abc\") }")
            .await
            .unwrap()
            .data,
        serde_json::json!({
            "test": "11abca"
        })
    );
}