rhai/tests/while_loop.rs

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use rhai::{Engine, EvalAltResult, INT};
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#[test]
fn test_while() -> 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;
while x < 10 {
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x += 1;
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if x > 5 { break; }
if x > 3 { continue; }
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x += 3;
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}
x
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",
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)?,
6
);
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Ok(())
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}
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#[test]
fn test_do() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
assert_eq!(
engine.eval::<INT>(
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"
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let x = 0;
do {
x += 1;
if x > 5 { break; }
if x > 3 { continue; }
x += 3;
} while x < 10;
x
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",
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)?,
6
);
Ok(())
}
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#[cfg(not(feature = "unchecked"))]
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#[test]
fn test_infinite_loops() -> Result<(), Box<EvalAltResult>> {
let mut engine = Engine::new();
engine.set_max_operations(1024);
assert!(engine.run("loop {}").is_err());
assert!(engine.run("while true {}").is_err());
assert!(engine.run("do {} while true").is_err());
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Ok(())
}