nom_nrql 0.1.2

NRQL (New Relic Query Language) streaming parser built with nom.
Documentation 
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//! NRQL (New Relic Query Language) streaming parser built with nom.
#![cfg_attr(not(feature = "std"), no_std)]

extern crate alloc;

pub mod ast;
pub mod error;
pub mod lexer;
pub mod parser;

pub use ast::*;
pub use error::ParseError;
pub use parser::parse_nrql;

#[cfg(test)]
mod tests {
    use super::*;
    use tracing_test::traced_test;

    #[traced_test]
    #[test]
    fn parse_minimal_from_select() {
        let q = parse_nrql("FROM Transaction SELECT *").unwrap();
        assert_eq!(q.from.event_types, ["Transaction"]);
        assert!(matches!(&q.select.items[0], SelectItem::Wildcard));
    }

    #[traced_test]
    #[test]
    fn parse_count_supports_select_from_and_from_select_ordering() {
        let select_from = parse_nrql("SELECT count(*) FROM Transaction").unwrap();
        let from_select = parse_nrql("FROM Transaction SELECT count(*)").unwrap();

        assert_eq!(select_from, from_select);
        assert_eq!(select_from.from.event_types, ["Transaction"]);
        assert_eq!(select_from.select.items.len(), 1);
        assert!(matches!(
            &select_from.select.items[0],
            SelectItem::Function {
                name,
                args,
                alias: None
            } if name == "count" && matches!(args.as_slice(), [SelectArg::Wildcard])
        ));
    }
}