use rhai::{Engine, EvalAltResult, INT}; #[cfg(not(feature = "no_float"))] use rhai::FLOAT; #[test] fn test_math() -> Result<(), Box<EvalAltResult>> { let engine = Engine::new(); assert_eq!(engine.eval::<INT>("1 + 2")?, 3); assert_eq!(engine.eval::<INT>("1 - 2")?, -1); assert_eq!(engine.eval::<INT>("2 * 3")?, 6); assert_eq!(engine.eval::<INT>("1 / 2")?, 0); assert_eq!(engine.eval::<INT>("3 % 2")?, 1); #[cfg(not(feature = "no_float"))] assert!((engine.eval::<FLOAT>("sin(PI()/6.0)")? - 0.5).abs() < 0.001); #[cfg(not(feature = "no_float"))] assert!(engine.eval::<FLOAT>("cos(PI()/2.0)")?.abs() < 0.001); #[cfg(not(feature = "only_i32"))] assert_eq!( engine.eval::<INT>("abs(-9223372036854775807)")?, 9_223_372_036_854_775_807 ); #[cfg(feature = "only_i32")] assert_eq!(engine.eval::<INT>("abs(-2147483647)")?, 2147483647); // Overflow/underflow/division-by-zero errors #[cfg(not(feature = "unchecked"))] { #[cfg(not(feature = "only_i32"))] { assert!(matches!( *engine .eval::<INT>("abs(-9223372036854775808)") .expect_err("expects negation overflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("9223372036854775807 + 1") .expect_err("expects overflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("-9223372036854775808 - 1") .expect_err("expects underflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("9223372036854775807 * 9223372036854775807") .expect_err("expects overflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("9223372036854775807 / 0") .expect_err("expects division by zero"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("9223372036854775807 % 0") .expect_err("expects division by zero"), EvalAltResult::ErrorArithmetic(_, _) )); } #[cfg(feature = "only_i32")] { assert!(matches!( *engine .eval::<INT>("2147483647 + 1") .expect_err("expects overflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("-2147483648 - 1") .expect_err("expects underflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("2147483647 * 2147483647") .expect_err("expects overflow"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("2147483647 / 0") .expect_err("expects division by zero"), EvalAltResult::ErrorArithmetic(_, _) )); assert!(matches!( *engine .eval::<INT>("2147483647 % 0") .expect_err("expects division by zero"), EvalAltResult::ErrorArithmetic(_, _) )); } } Ok(()) } #[test] fn test_math_parse() -> Result<(), Box<EvalAltResult>> { let engine = Engine::new(); assert_eq!(engine.eval::<INT>(r#"parse_int("42")"#)?, 42); assert_eq!(engine.eval::<INT>(r#"parse_int("42", 16)"#)?, 0x42); assert_eq!(engine.eval::<INT>(r#"parse_int("abcdef", 16)"#)?, 0xabcdef); Ok(()) }