extern crate rcalc;

#[cfg(test)]
mod precedence {
    use rcalc::Interpreter;

    #[test]
    fn mdas() {
        assert_eq!(Interpreter::process("7 + 3 * 2 - 4 / 2").unwrap(), 11.);
    }

    #[test]
    fn emdas() {
        assert_eq!(Interpreter::process("6 ^ 2 / 6").unwrap(), 6.)
    }

    #[test]
    fn femdas() {
        assert_eq!(Interpreter::process("6 ^ 9 / 3! ^ 3").unwrap(), 46656.)
    }

    #[test]
    fn pfemdas() {
        assert_eq!(
            Interpreter::process("7 + 3 * (10 / (12 / (3 + 1) - 1)) / (2 + 3) - 5 - 3 + (8)")
                .unwrap(),
            10.
        );
    }
}