pickup 0.1.1

A CLI tool that helps you remember to buy things
Documentation 
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use std::io::{self, BufRead};

pub trait ReadInput {
    fn read_input(&mut self) -> io::Result<String>;
}

pub struct Reader<R> {
    reader: R,
}

impl<R> Reader<R> {
    pub fn new(reader: R) -> Self {
        Self { reader }
    }
}

impl<R: BufRead> ReadInput for Reader<R> {
    fn read_input(&mut self) -> io::Result<String> {
        let mut buf = String::new();
        self.reader.read_line(&mut buf)?;
        Ok(buf.trim().to_string())
    }
}

#[cfg(test)]
mod tests {
    use crate::reader::{ReadInput, Reader};

    #[test]
    fn gives_back_trimmed_string() -> std::io::Result<()> {
        let bytes = b"  I have spaces in this string  ";
        let mut reader = Reader::new(&bytes[..]);

        let actual = reader.read_input().unwrap();
        let expected = "I have spaces in this string".to_string();
        assert_eq!(actual, expected);

        Ok(())
    }
}