Vendor things

third-party/vendor/regex/tests/regression.rs

@@ -0,0 +1,94 @@
+use regex::Regex;
+
+macro_rules! regex {
+    ($pattern:expr) => {
+        regex::Regex::new($pattern).unwrap()
+    };
+}
+
+// See: https://github.com/rust-lang/regex/issues/48
+#[test]
+fn invalid_regexes_no_crash() {
+    assert!(Regex::new("(*)").is_err());
+    assert!(Regex::new("(?:?)").is_err());
+    assert!(Regex::new("(?)").is_err());
+    assert!(Regex::new("*").is_err());
+}
+
+// See: https://github.com/rust-lang/regex/issues/98
+#[test]
+fn regression_many_repeat_stack_overflow() {
+    let re = regex!("^.{1,2500}");
+    assert_eq!(
+        vec![0..1],
+        re.find_iter("a").map(|m| m.range()).collect::<Vec<_>>()
+    );
+}
+
+// See: https://github.com/rust-lang/regex/issues/555
+#[test]
+fn regression_invalid_repetition_expr() {
+    assert!(Regex::new("(?m){1,1}").is_err());
+}
+
+// See: https://github.com/rust-lang/regex/issues/527
+#[test]
+fn regression_invalid_flags_expression() {
+    assert!(Regex::new("(((?x)))").is_ok());
+}
+
+// See: https://github.com/rust-lang/regex/issues/129
+#[test]
+fn regression_captures_rep() {
+    let re = regex!(r"([a-f]){2}(?P<foo>[x-z])");
+    let caps = re.captures("abx").unwrap();
+    assert_eq!(&caps["foo"], "x");
+}
+
+// See: https://github.com/BurntSushi/ripgrep/issues/1247
+#[cfg(feature = "unicode-perl")]
+#[test]
+fn regression_nfa_stops1() {
+    let re = regex::bytes::Regex::new(r"\bs(?:[ab])").unwrap();
+    assert_eq!(0, re.find_iter(b"s\xE4").count());
+}
+
+// See: https://github.com/rust-lang/regex/issues/981
+#[cfg(feature = "unicode")]
+#[test]
+fn regression_bad_word_boundary() {
+    let re = regex!(r#"(?i:(?:\b|_)win(?:32|64|dows)?(?:\b|_))"#);
+    let hay = "ubi-Darwin-x86_64.tar.gz";
+    assert!(!re.is_match(hay));
+    let hay = "ubi-Windows-x86_64.zip";
+    assert!(re.is_match(hay));
+}
+
+// See: https://github.com/rust-lang/regex/issues/982
+#[cfg(feature = "unicode-perl")]
+#[test]
+fn regression_unicode_perl_not_enabled() {
+    let pat = r"(\d+\s?(years|year|y))?\s?(\d+\s?(months|month|m))?\s?(\d+\s?(weeks|week|w))?\s?(\d+\s?(days|day|d))?\s?(\d+\s?(hours|hour|h))?";
+    assert!(Regex::new(pat).is_ok());
+}
+
+// See: https://github.com/rust-lang/regex/issues/995
+#[test]
+fn regression_big_regex_overflow() {
+    let pat = r" {2147483516}{2147483416}{5}";
+    assert!(Regex::new(pat).is_err());
+}
+
+// See: https://github.com/rust-lang/regex/issues/999
+#[test]
+fn regression_complete_literals_suffix_incorrect() {
+    let needles = vec![
+        "aA", "bA", "cA", "dA", "eA", "fA", "gA", "hA", "iA", "jA", "kA",
+        "lA", "mA", "nA", "oA", "pA", "qA", "rA", "sA", "tA", "uA", "vA",
+        "wA", "xA", "yA", "zA",
+    ];
+    let pattern = needles.join("|");
+    let re = regex!(&pattern);
+    let hay = "FUBAR";
+    assert_eq!(0, re.find_iter(hay).count());
+}