use super::{format_value, runs};
use crate::display::NumberFormat;
fn point(index: usize, value: f64) -> String {
format!("{index},{value}")
}
#[test]
fn a_line_breaks_where_a_value_is_missing_and_doubles_a_lone_point() {
let values = [Some(1.0), Some(2.0), None, Some(3.0), None, None];
assert_eq!(runs(&values, point), ["0,1 1,2", "3,3 3,3"]);
assert_eq!(runs(&[None, None], point), Vec::<String>::new());
}
#[test]
fn a_whole_value_spells_no_decimals_and_any_other_two() {
let english = NumberFormat::english();
assert_eq!(format_value(1204.0, &english), "1,204");
assert_eq!(format_value(-3.0, &english), "-3");
assert_eq!(format_value(2.5, &english), "2.50");
}