Read multiple row headers

[tablify] / src / lib.rs

#[cfg(test)]
use std::io::BufRead;
#[cfg(test)]
use std::iter::Iterator;

#[derive(Debug, PartialEq, Eq)]
struct RowInput {
    label: String,
    entries: Vec<String>,
}

#[cfg(test)]
fn read_rows(input: impl std::io::Read) -> impl Iterator<Item = RowInput> {
    std::io::BufReader::new(input).lines().map(|line| RowInput {
        label: line.unwrap(),
        entries: vec![],
    })
}

pub fn tablify(_input: &impl std::io::Read) -> String {
    String::from("Hello, world!")
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_read_rows() {
        assert_eq!(
            read_rows(&b"foo"[..]).collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("foo"),
                entries: vec![]
            }]
        );
        assert_eq!(
            read_rows(&b"bar"[..]).collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("bar"),
                entries: vec![]
            }]
        );
        assert_eq!(
            read_rows(&b"foo\nbar\n"[..]).collect::<Vec<_>>(),
            vec![
                RowInput {
                    label: String::from("foo"),
                    entries: vec![]
                },
                RowInput {
                    label: String::from("bar"),
                    entries: vec![]
                }
            ]
        );
    }
}