rhai/tests/looping.rs

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use rhai::{Engine, EvalAltResult, ParseErrorType, INT};
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#[test]
fn test_loop() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
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assert_eq!(
engine.eval::<INT>(
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"
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let x = 0;
let i = 0;
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loop {
if i < 10 {
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i += 1;
if x > 20 { continue; }
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x += i;
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} else {
break;
}
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}
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return x;
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"
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)?,
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21
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);
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assert_eq!(
*engine
.compile("let x = 0; break;")
.expect_err("should error")
.err_type(),
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ParseErrorType::LoopBreak
);
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#[cfg(not(feature = "no_function"))]
assert_eq!(
*engine
.compile("loop { let f = || { break; } }")
.expect_err("should error")
.err_type(),
ParseErrorType::LoopBreak
);
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assert_eq!(
*engine
.compile("let x = 0; if x > 0 { continue; }")
.expect_err("should error")
.err_type(),
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ParseErrorType::LoopBreak
);
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Ok(())
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}