mod parse_signature {
    use crate::borrowed::util::parse_signature;
    use crate::borrowed::Signature;
    use crate::ByteSlice;
    use crate::{Sign, Time};

    fn signature(name: &'static str, email: &'static str, time: u32, sign: Sign, offset: i32) -> Signature<'static> {
        Signature {
            name: name.as_bytes().as_bstr(),
            email: email.as_bytes().as_bstr(),
            time: Time { time, offset, sign },
        }
    }

    #[test]
    fn tz_minus() {
        assert_eq!(
            parse_signature(b"Sebastian Thiel <byronimo@gmail.com> 1528473343 -0230")
                .unwrap()
                .1,
            signature("Sebastian Thiel", "byronimo@gmail.com", 1528473343, Sign::Minus, -9000)
        );
    }

    #[test]
    fn tz_plus() {
        assert_eq!(
            parse_signature(b"Sebastian Thiel <byronimo@gmail.com> 1528473343 +0230")
                .unwrap()
                .1,
            signature("Sebastian Thiel", "byronimo@gmail.com", 1528473343, Sign::Plus, 9000)
        );
    }

    #[test]
    fn negative_offset_0000() {
        assert_eq!(
            parse_signature(b"Sebastian Thiel <byronimo@gmail.com> 1528473343 -0000")
                .unwrap()
                .1,
            signature("Sebastian Thiel", "byronimo@gmail.com", 1528473343, Sign::Minus, 0)
        );
    }

    #[test]
    fn empty_name_and_email() {
        assert_eq!(
            parse_signature(b" <> 12345 -1215").unwrap().1,
            signature("", "", 12345, Sign::Minus, -44100)
        );
    }
}