111 lines
3.7 KiB
Rust
111 lines
3.7 KiB
Rust
use rhai::{Engine, EvalAltResult, INT};
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#[cfg(not(feature = "no_float"))]
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use rhai::FLOAT;
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#[test]
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fn test_math() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(engine.eval::<INT>("1 + 2")?, 3);
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assert_eq!(engine.eval::<INT>("1 - 2")?, -1);
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assert_eq!(engine.eval::<INT>("2 * 3")?, 6);
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assert_eq!(engine.eval::<INT>("1 / 2")?, 0);
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assert_eq!(engine.eval::<INT>("3 % 2")?, 1);
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#[cfg(not(feature = "no_float"))]
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assert!((engine.eval::<FLOAT>("sin(30.0)")? - 0.5).abs() < 0.001);
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#[cfg(not(feature = "no_float"))]
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assert!(engine.eval::<FLOAT>("cos(90.0)")?.abs() < 0.001);
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#[cfg(not(feature = "only_i32"))]
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assert_eq!(
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engine.eval::<INT>("abs(-9223372036854775807)")?,
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9_223_372_036_854_775_807
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);
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#[cfg(feature = "only_i32")]
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assert_eq!(engine.eval::<INT>("abs(-2147483647)")?, 2147483647);
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// Overflow/underflow/division-by-zero errors
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#[cfg(not(feature = "unchecked"))]
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{
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#[cfg(not(feature = "only_i32"))]
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{
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assert!(matches!(
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*engine
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.eval::<INT>("abs(-9223372036854775808)")
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.expect_err("expects negation overflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("9223372036854775807 + 1")
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.expect_err("expects overflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("-9223372036854775808 - 1")
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.expect_err("expects underflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("9223372036854775807 * 9223372036854775807")
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.expect_err("expects overflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("9223372036854775807 / 0")
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.expect_err("expects division by zero"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("9223372036854775807 % 0")
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.expect_err("expects division by zero"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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}
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#[cfg(feature = "only_i32")]
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{
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assert!(matches!(
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*engine
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.eval::<INT>("2147483647 + 1")
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.expect_err("expects overflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("-2147483648 - 1")
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.expect_err("expects underflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("2147483647 * 2147483647")
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.expect_err("expects overflow"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("2147483647 / 0")
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.expect_err("expects division by zero"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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assert!(matches!(
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*engine
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.eval::<INT>("2147483647 % 0")
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.expect_err("expects division by zero"),
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EvalAltResult::ErrorArithmetic(_, _)
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));
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}
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}
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Ok(())
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}
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