From 7aa59ea643254b4961eaaa81f339b144e305df54 Mon Sep 17 00:00:00 2001
From: Iban Eguia Moraza <razican@protonmail.ch>
Date: Sat, 5 Feb 2022 23:39:01 +0100
Subject: [PATCH] Added test for peeking issue

---
 boa/src/syntax/parser/cursor/buffered_lexer/tests.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/boa/src/syntax/parser/cursor/buffered_lexer/tests.rs b/boa/src/syntax/parser/cursor/buffered_lexer/tests.rs
index 57e0fd53dcd..b2a301736d9 100644
--- a/boa/src/syntax/parser/cursor/buffered_lexer/tests.rs
+++ b/boa/src/syntax/parser/cursor/buffered_lexer/tests.rs
@@ -278,3 +278,11 @@ fn skip_peeked_terminators() {
     // End of stream
     assert!(cur.peek(2, true, &mut interner).unwrap().is_none());
 }
+
+#[test]
+fn issue_1768() {
+    let mut cur = BufferedLexer::from(&b"\n(\nx\n)\n"[..]);
+    let mut interner = Interner::default();
+
+    assert!(cur.peek(3, true, &mut interner).unwrap().is_none());
+}