91 lines
2.4 KiB
Rust
91 lines
2.4 KiB
Rust
use rhai::{Engine, EvalAltResult, Scope, INT};
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#[test]
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fn test_ops() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(engine.eval::<INT>("60 + 5")?, 65);
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assert_eq!(engine.eval::<INT>("(1 + 2) * (6 - 4) / 2")?, 3);
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assert_eq!(engine.eval::<INT>("let x = 41; x = x + 1; x")?, 42);
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assert_eq!(
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engine.eval::<String>(r#"let s = "hello"; s = s + 42; s"#)?,
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"hello42"
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);
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Ok(())
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}
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#[cfg(not(feature = "only_i32"))]
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#[cfg(not(feature = "only_i64"))]
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#[test]
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fn test_ops_other_number_types() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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let mut scope = Scope::new();
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scope.push("x", 42_u16);
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assert!(matches!(
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*engine.eval_with_scope::<bool>(&mut scope, "x == 42").unwrap_err(),
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EvalAltResult::ErrorFunctionNotFound(f, ..) if f.starts_with("== (u16,")
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));
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#[cfg(not(feature = "no_float"))]
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assert!(matches!(
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*engine.eval_with_scope::<bool>(&mut scope, "x == 42.0").unwrap_err(),
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EvalAltResult::ErrorFunctionNotFound(f, ..) if f.starts_with("== (u16,")
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));
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assert!(
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matches!(*engine.eval_with_scope::<bool>(&mut scope, r#"x == "hello""#).unwrap_err(),
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EvalAltResult::ErrorFunctionNotFound(f, ..) if f.starts_with("== (u16,")
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)
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);
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Ok(())
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}
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#[test]
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fn test_ops_strings() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert!(engine.eval::<bool>(r#""hello" > 'c'"#)?);
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assert!(engine.eval::<bool>(r#""" < 'c'"#)?);
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assert!(engine.eval::<bool>(r#"'x' > "hello""#)?);
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assert!(engine.eval::<bool>(r#""hello" > "foo""#)?);
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Ok(())
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}
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#[test]
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fn test_ops_precedence() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(
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engine.eval::<INT>("let x = 0; if x == 10 || true { x = 1} x")?,
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1
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);
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Ok(())
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}
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#[test]
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fn test_ops_custom_types() -> Result<(), Box<EvalAltResult>> {
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#[derive(Debug, Clone, PartialEq, Eq)]
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struct Test1;
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#[derive(Debug, Clone, PartialEq, Eq)]
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struct Test2;
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<Test1>("Test1")
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.register_type_with_name::<Test2>("Test2")
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.register_fn("new_ts1", || Test1)
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.register_fn("new_ts2", || Test2)
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.register_fn("==", |x: Test1, y: Test2| true);
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assert!(engine.eval::<bool>("let x = new_ts1(); let y = new_ts2(); x == y")?);
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Ok(())
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}
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