mirror of
https://gitee.com/openharmony/third_party_rust_regex
synced 2025-04-12 23:50:30 +00:00
b9d1bb5e98
Corrects `/-/.split("a-")` to return `["a", ""]` instead of `["a"]`.
(`/-/` is shorthand for `Regex::new("-").unwrap()`.)
This adds tests for both `split()` and `splitn()` covering a variety of
edge cases. One test is commented out because it is failing due to #521.
A future commit will fix it.
Note that the `split2` and `split3` tests were passing incorrectly
before this change. I have fixed them to expect the correct values.
Fixes #627
41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
// 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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