pnc-engine 0.2.0

Core engine for PNC: arbitrary-precision RPN evaluation, units, and persistence
Documentation 
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use pnc_engine::{PncError, parse};

#[test]
fn unknown_command_error() {
    let mut stack = Vec::new();
    let err = parse::eval_line(&mut stack, "foobar").unwrap_err();
    assert!(matches!(err, PncError::UnknownCommand(_)));
}