in src/content/lines.rs [336:351]
fn test_pad_lines_right() -> anyhow::Result<()> {
let mut test = vec![
vec!["test", "line"].try_into()?, // 8 chars
vec!["another one"].try_into()?, // 11 chars
Line::default(), // 0 chars
];
let result = vec![
vec!["test", "line", &" ".repeat(11 + 3)].try_into()?,
vec!["another one", &" ".repeat(11)].try_into()?,
vec![" ".repeat(11 + 11)].try_into()?,
];
test.pad_lines_right(11);
assert_eq!(test, result);
Ok(())
}