statsig-rust 0.19.1-beta.2604130314

use crate::{
    evaluation::evaluator_value::MemoizedEvaluatorValue, log_w, unwrap_or_return, DynamicValue,
};

const TAG: &str = "CompareStrWithRegex";

pub(crate) fn compare_str_with_regex(
    value: &DynamicValue,
    regex_value: &MemoizedEvaluatorValue,
) -> bool {
    let value_str = unwrap_or_return!(&value.string_value, false);
    let regex = match &regex_value.regex_value {
        Some(regex) => regex,
        None => {
            log_w!(
                TAG,
                "No regex value found. 'str_matches' operators require a call to EvaluatorValue::compile_regex() on the target value."
            );
            return false;
        }
    };

    regex.is_match(&value_str.value).unwrap_or(false)
}

#[cfg(test)]
mod tests {
    use crate::evaluation::comparisons::compare_str_with_regex;
    use crate::{dyn_value, test_only_make_eval_value};

    #[test]
    fn test_compare_regex_simple() {
        let left = dyn_value!("apple banana pear");
        let mut right = test_only_make_eval_value!("banana");
        right.compile_regex();

        assert!(compare_str_with_regex(&left, &right));
    }

    #[test]
    fn test_compare_regex_complex() {
        let left =
            dyn_value!(r#"{ "name": "Statsig", "version": "4.8.1-beta.32", "license": "ISC" }"#);
        let mut right = test_only_make_eval_value!(r#"version":\s*"4\.8\.\d+"#); // Major.Minor == 4.8
        right.compile_regex();

        assert!(compare_str_with_regex(&left, &right));
    }

    #[test]
    fn test_compare_regex_fancy_fallback() {
        let left = dyn_value!("foobar");
        let mut right = test_only_make_eval_value!(r#"(?<=foo)bar"#);
        right.compile_regex();

        assert!(compare_str_with_regex(&left, &right));
    }
}