44 lines
1.6 KiB
Rust
44 lines
1.6 KiB
Rust
use rhai::{Engine, EvalAltResult};
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#[test]
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fn test_math() -> Result<(), EvalAltResult> {
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let mut engine = Engine::new();
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assert_eq!(engine.eval::<i64>("1 + 2")?, 3);
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assert_eq!(engine.eval::<i64>("1 - 2")?, -1);
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assert_eq!(engine.eval::<i64>("2 * 3")?, 6);
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assert_eq!(engine.eval::<i64>("1 / 2")?, 0);
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assert_eq!(engine.eval::<i64>("3 % 2")?, 1);
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assert_eq!(
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engine.eval::<i64>("(-9223372036854775807).abs()")?,
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9223372036854775807
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);
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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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match engine.eval::<i64>("9223372036854775807 + 1") {
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Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
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r => panic!("should return overflow error: {:?}", r),
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}
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match engine.eval::<i64>("-9223372036854775808 - 1") {
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Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
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r => panic!("should return underflow error: {:?}", r),
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}
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match engine.eval::<i64>("9223372036854775807 * 9223372036854775807") {
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Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
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r => panic!("should return overflow error: {:?}", r),
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}
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match engine.eval::<i64>("9223372036854775807 / 0") {
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Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
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r => panic!("should return division by zero error: {:?}", r),
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}
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match engine.eval::<i64>("9223372036854775807 % 0") {
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Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
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r => panic!("should return division by zero error: {:?}", r),
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}
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}
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Ok(())
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}
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