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// Macros for use in writing tests generic over &str/&[u8].
macro_rules! text { ($text:expr) => { $text.as_bytes() } }
macro_rules! t { ($re:expr) => { text!($re) } }
macro_rules! match_text { ($text:expr) => { $text.as_bytes() } }
macro_rules! use_ { ($($path: tt)*) => { use regex::bytes::$($path)*; } }
macro_rules! empty_vec { () => { <Vec<&[u8]>>::new() } }
macro_rules! bytes { ($text:expr) => { $text } }
macro_rules! no_expand {
($text:expr) => {{
use regex::bytes::NoExpand;
NoExpand(text!($text))
}}
}
macro_rules! show {
($text:expr) => {{
use std::ascii::escape_default;
let mut s = vec![];
for &b in bytes!($text) {
s.extend(escape_default(b));
}
String::from_utf8(s).unwrap()
}}
}
macro_rules! expand {
($name:ident, $re:expr, $text:expr, $expand:expr, $expected:expr) => {
#[test]
fn $name() {
let re = regex!($re);
let cap = re.captures(t!($text)).unwrap();
let mut got = vec![];
cap.expand(t!($expand), &mut got);
assert_eq!(show!(t!($expected)), show!(&*got));
}
}
}
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