rhai/tests/mismatched_op.rs

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use rhai::{Engine, EvalAltResult, RegisterFn, INT};
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#[test]
fn test_mismatched_op() {
let engine = Engine::new();
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assert!(
matches!(engine.eval::<INT>(r#""hello, " + "world!""#).expect_err("expects error"),
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EvalAltResult::ErrorMismatchOutputType(err, _) if err == "string")
);
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}
#[test]
#[cfg(not(feature = "no_object"))]
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fn test_mismatched_op_custom_type() {
#[derive(Clone)]
struct TestStruct {
x: INT,
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}
impl TestStruct {
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fn new() -> Self {
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TestStruct { x: 1 }
}
}
let mut engine = Engine::new();
engine.register_type_with_name::<TestStruct>("TestStruct");
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engine.register_fn("new_ts", TestStruct::new);
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let r = engine
.eval::<INT>("60 + new_ts()")
.expect_err("expects error");
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#[cfg(feature = "only_i32")]
assert!(
matches!(r, EvalAltResult::ErrorFunctionNotFound(err, _) if err == "+ (i32, TestStruct)")
);
#[cfg(not(feature = "only_i32"))]
assert!(
matches!(r, EvalAltResult::ErrorFunctionNotFound(err, _) if err == "+ (i64, TestStruct)")
);
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}