Function expect_parser_error

crates/hyperqueue/src/tests/utils.rs:18–21

(parser: impl CharParser<T>, input: &str)

}

pub fn expect_parser_error<T: std::fmt::Debug>(parser: impl CharParser<T>, input: &str) -> String {
    let error = parser.parse_text(input).unwrap_err();
    format!("{error:?}")
}