test: add failing example for markdown comment parser

Author: rnxpyke

harper-comments/src/comment_parser.rs

@@ -123,3 +123,16 @@ impl Parser for CommentParser {
         self.inner.parse(source)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::CommentParser;
+    use harper_core::parsers::{MarkdownOptions, StrParser};
+
+    #[test]
+    fn hang() {
+        let opts = MarkdownOptions::default();
+        let parser = CommentParser::new_from_language_id("cmake", opts).unwrap();
+        let _res = parser.parse_str("#[[#|]]:A]");
+    }
+}