truecalc-core 3.2.0

Formula engine with exact Google Sheets semantics — stateless, embeddable evaluator
Documentation 
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use crate::types::{ErrorKind, Value};
use std::collections::HashMap;

fn run(formula: &str) -> Value {
    crate::Engine::sheets().evaluate(formula, &HashMap::new())
}

#[test]
fn wrong_arity_zero_args() {
    assert_eq!(run("=SUMIF()"), Value::Error(ErrorKind::NA));
}

#[test]
fn wrong_arity_one_arg() {
    assert_eq!(run("=SUMIF(1)"), Value::Error(ErrorKind::NA));
}

#[test]
fn wrong_arity_four_args() {
    assert_eq!(run("=SUMIF(1,1,1,1)"), Value::Error(ErrorKind::NA));
}