flowsamples 0.70.0

A set of sample 'flow' programs
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use flowmacro::flow_function;
use serde_json::json;
use serde_json::Value;

#[flow_function]
fn _reverse(inputs: &[Value]) -> Result<(Option<Value>, RunAgain)> {
    let mut value = None;

    let input = &inputs[0];
    if let Value::String(ref s) = input {
        value = Some(json!(s.chars().rev().collect::<String>()));
    }
    Ok((value, RUN_AGAIN))
}

#[cfg(test)]
mod test {
    use flowcore::RUN_AGAIN;
    use serde_json::json;

    use super::_reverse;

    #[test]
    fn send_string() {
        let string = "string of text";
        let value = json!(string);
        let (value, run_again) = _reverse(&[value]).expect("_reverse() failed");

        assert_eq!(run_again, RUN_AGAIN);
        assert_eq!(value, Some(json!("txet fo gnirts")));
    }
}