rhai/tests/throw.rs

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use rhai::{Engine, EvalAltResult, INT};
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#[test]
fn test_throw() {
let engine = Engine::new();
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assert!(matches!(
*engine.eval::<()>("if true { throw 42 }").expect_err("expects error"),
EvalAltResult::ErrorRuntime(s, _) if s.as_int().unwrap() == 42
));
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assert!(matches!(
*engine.eval::<()>(r#"throw"#).expect_err("expects error"),
EvalAltResult::ErrorRuntime(s, _) if s.is::<()>()
));
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}
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#[test]
fn test_try_catch() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
assert_eq!(
engine.eval::<INT>("try { throw 42; } catch (x) { return x; }")?,
42
);
assert_eq!(
engine.eval::<INT>("try { throw 42; } catch { return 123; }")?,
123
);
#[cfg(not(feature = "no_function"))]
assert_eq!(
engine.eval::<INT>(
"
fn foo(x) { try { throw 42; } catch (x) { return x; } }
foo(0)
"
)?,
42
);
assert_eq!(
engine.eval::<INT>(
"
let err = 123;
let x = 0;
try { throw 42; } catch(err) { return err; }
"
)?,
42
);
assert_eq!(
engine.eval::<INT>(
"
let foo = 123;
let x = 0;
try { throw 42; } catch(err) { return foo; }
"
)?,
123
);
assert_eq!(
engine.eval::<INT>(
"
let foo = 123;
let x = 0;
try { throw 42; } catch(err) { return err; }
"
)?,
42
);
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#[cfg(not(feature = "unchecked"))]
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assert!(matches!(
*engine
.eval::<()>("try { 42/0; } catch { throw; }")
.expect_err("expects error"),
EvalAltResult::ErrorArithmetic(_, _)
));
Ok(())
}