use rhai::{Engine, EvalAltResult, INT}; #[test] fn test_increment() -> Result<(), Box<EvalAltResult>> { let engine = Engine::new(); assert_eq!(engine.eval::<INT>("let x = 1; x += 2; x")?, 3); assert_eq!( engine.eval::<String>(r#"let s = "test"; s += "ing"; s"#)?, "testing" ); Ok(()) }