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-rw-r--r--src/tools/clippy/tests/ui/regex.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/regex.rs b/src/tools/clippy/tests/ui/regex.rs
index f0e1a8128d7..ab8ac97a0e7 100644
--- a/src/tools/clippy/tests/ui/regex.rs
+++ b/src/tools/clippy/tests/ui/regex.rs
@@ -36,6 +36,10 @@ fn syntax_error() {
 
     let raw_string_error = Regex::new(r"[...\/...]");
     let raw_string_error = Regex::new(r#"[...\/...]"#);
+
+    let escaped_string_span = Regex::new("\\b\\c");
+
+    let aux_span = Regex::new("(?ixi)");
 }
 
 fn trivial_regex() {