rhai/tests/decrement.rs
2020-03-14 23:40:30 +08:00

15 lines
430 B
Rust

use rhai::{Engine, EvalAltResult, INT};
#[test]
fn test_decrement() -> Result<(), EvalAltResult> {
let mut engine = Engine::new();
assert_eq!(engine.eval::<INT>("let x = 10; x -= 7; x")?, 3);
assert!(matches!(engine
.eval::<String>(r#"let s = "test"; s -= "ing"; s"#)
.expect_err("expects error"), EvalAltResult::ErrorFunctionNotFound(err, _) if err == "- (string, string)"));
Ok(())
}