rhai/tests/mismatched_op.rs
2020-07-03 10:45:01 +08:00

42 lines
1.2 KiB
Rust

use rhai::{Engine, EvalAltResult, RegisterFn, INT};
#[test]
fn test_mismatched_op() {
let engine = Engine::new();
assert!(matches!(
*engine.eval::<INT>(r#""hello, " + "world!""#).expect_err("expects error"),
EvalAltResult::ErrorMismatchOutputType(need, actual, _) if need == std::any::type_name::<INT>() && actual == "string"
));
}
#[test]
#[cfg(not(feature = "no_object"))]
fn test_mismatched_op_custom_type() {
#[derive(Debug, Clone)]
struct TestStruct {
x: INT,
}
impl TestStruct {
fn new() -> Self {
TestStruct { x: 1 }
}
}
let mut engine = Engine::new();
engine.register_type_with_name::<TestStruct>("TestStruct");
engine.register_fn("new_ts", TestStruct::new);
assert!(matches!(
*engine.eval::<INT>("60 + new_ts()").expect_err("should error"),
EvalAltResult::ErrorFunctionNotFound(err, _) if err == format!("+ ({}, TestStruct)", std::any::type_name::<INT>())
));
assert!(matches!(
*engine.eval::<TestStruct>("42").expect_err("should error"),
EvalAltResult::ErrorMismatchOutputType(need, actual, _)
if need == "TestStruct" && actual == std::any::type_name::<INT>()
));
}