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