1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/comments/single-line-html-close-first-line-1.js b/js/src/tests/test262/annexB/language/comments/single-line-html-close-first-line-1.js
new file mode 100644
index 0000000000..708e42e4ae
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/comments/single-line-html-close-first-line-1.js
@@ -0,0 +1,34 @@
+--> a comment
+
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-html-like-comments
+description: >
+    A SingleLineHTMLCloseComment is allowed in the first line
+flags: [raw]
+info: |
+    InputElementHashbangOrRegExp ::
+      WhiteSpace
+      LineTerminator
+      Comment
+      CommonToken
+      HashbangComment
+      RegularExpressionLiteral
+      HTMLCloseComment
+
+    HTMLCloseComment ::
+      WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative:
+  phase: runtime
+  type: Test262Error
+---*/
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+throw new Test262Error("This is not in a comment");