ganit-core 0.3.10

Spreadsheet formula engine — parser and evaluator for Excel-compatible formulas
Documentation 
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use super::super::factdouble_fn;
use crate::types::{ErrorKind, Value};

#[test]
fn negative_returns_num_error() {
    // FACTDOUBLE(-1) = #NUM!
    assert_eq!(factdouble_fn(&[Value::Number(-1.0)]), Value::Error(ErrorKind::Num));
}

#[test]
fn wrong_arity_zero_args() {
    assert_eq!(factdouble_fn(&[]), Value::Error(ErrorKind::NA));
}

#[test]
fn wrong_arity_two_args() {
    assert_eq!(
        factdouble_fn(&[Value::Number(1.0), Value::Number(2.0)]),
        Value::Error(ErrorKind::NA)
    );
}