rhai/tests/unary_minus.rs
2020-03-02 22:11:56 +08:00

13 lines
323 B
Rust

use rhai::{Engine, EvalAltResult};
#[test]
fn test_unary_minus() -> Result<(), EvalAltResult> {
let mut engine = Engine::new();
assert_eq!(engine.eval::<i64>("let x = -5; x")?, -5);
assert_eq!(engine.eval::<i64>("fn n(x) { -x } n(5)")?, -5);
assert_eq!(engine.eval::<i64>("5 - -(-5)")?, 0);
Ok(())
}