Function do_root_test

datafusion/common/src/error.rs:1462–1468

(e: DataFusionError, exp: DataFusionError)

    }

    fn do_root_test(e: DataFusionError, exp: DataFusionError) {
        let e = e.find_root();

        // DataFusionError does not implement Eq, so we use a string comparison + some cheap "same variant" test instead
        assert_eq!(e.strip_backtrace(), exp.strip_backtrace());
        assert_eq!(std::mem::discriminant(e), std::mem::discriminant(&exp),)
    }

    #[test]
    fn test_iter() {