From 0f4cfa877a9f14a75b219c04947ce5984772d8ba Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Wed, 30 Oct 2019 03:49:39 +0800
Subject: fix corner case in `comments` (#3550)

---
 test/mocha/comments.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'test/mocha')

diff --git a/test/mocha/comments.js b/test/mocha/comments.js
index 764f6db8..9a4b3be6 100644
--- a/test/mocha/comments.js
+++ b/test/mocha/comments.js
@@ -259,6 +259,30 @@ describe("comments", function() {
         assert.strictEqual(result.code, code);
     });
 
+    it("Should handle comments around parenthesis correctly", function() {
+        var code = [
+            "a();",
+            "/* foo */",
+            "(b())",
+            "/* bar */",
+            "c();",
+        ].join("\n");
+        var result = UglifyJS.minify(code, {
+            compress: false,
+            mangle: false,
+            output: {
+                comments: "all",
+            },
+        });
+        if (result.error) throw result.error;
+        assert.strictEqual(result.code, [
+            "a();",
+            "/* foo */",
+            "b()",
+            "/* bar */;c();",
+        ].join("\n"));
+    });
+
     it("Should preserve comments around IIFE", function() {
         var result = UglifyJS.minify("/*a*/(/*b*/function(){/*c*/}/*d*/)/*e*/();", {
             compress: false,
-- 
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