80 lines
1.5 KiB
Rust
80 lines
1.5 KiB
Rust
use rhai::{Engine, EvalAltResult, Scope, INT};
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#[test]
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fn test_eval() -> Result<(), EvalAltResult> {
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let mut engine = Engine::new();
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assert_eq!(
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engine.eval::<INT>(
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r#"
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eval("40 + 2")
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"#
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)?,
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42
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);
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Ok(())
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}
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#[test]
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#[cfg(not(feature = "no_function"))]
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fn test_eval_function() -> Result<(), EvalAltResult> {
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let mut engine = Engine::new();
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let mut scope = Scope::new();
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assert_eq!(
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engine.eval_with_scope::<INT>(
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&mut scope,
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r#"
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let x = 10;
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fn foo(x) { x += 12; x }
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let script = "let y = x;"; // build a script
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script += "y += foo(y);";
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script += "x + y";
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eval(script)
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"#
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)?,
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42
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);
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assert_eq!(
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scope
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.get_value::<INT>("x")
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.expect("variable x should exist"),
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10
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);
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assert_eq!(
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scope
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.get_value::<INT>("y")
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.expect("variable y should exist"),
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32
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);
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assert!(!scope.contains("z"));
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Ok(())
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}
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#[test]
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#[cfg(not(feature = "no_function"))]
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fn test_eval_override() -> Result<(), EvalAltResult> {
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let mut engine = Engine::new();
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assert_eq!(
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engine.eval::<String>(
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r#"
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fn eval(x) { x } // reflect the script back
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eval("40 + 2")
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"#
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)?,
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"40 + 2"
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);
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Ok(())
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}
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