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use magnus::{error::IntoError, function, rb_assert, Error, Ruby};
struct CustomError(&'static str);
impl IntoError for CustomError {
fn into_error(self, ruby: &Ruby) -> Error {
Error::new(
ruby.exception_runtime_error(),
format!("Custom error: {}", self.0),
)
}
}
fn example() -> Result<(), CustomError> {
Err(CustomError("test"))
}
#[test]
fn it_can_bind_function_returning_custom_error() {
let ruby = unsafe { magnus::embed::init() };
ruby.define_global_function("example", function!(example, 0));
rb_assert!(
ruby,
r#"(example rescue $!).message == "Custom error: test""#
);
}
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