Function incr_negative_delta

nodedb/src/engine/kv/engine_atomic.rs:497–502

()

    #[test]
    fn incr_negative_delta() {
        let mut engine = make_engine();
        engine.incr(1, "counters", b"gold", 100, 0, 1000).unwrap();
        let result = engine.incr(1, "counters", b"gold", -30, 0, 1000);
        assert_eq!(result.unwrap(), 70);
    }

    #[test]
    fn incr_overflow() {