From 1ba8fbe4b82aea8a4e681a5cff6f47521561970d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juan=20Jos=C3=A9?= <soyjuanarbol@gmail.com>
Date: Fri, 25 Oct 2024 12:39:45 -0500
Subject: [PATCH] test: increase test coverage for
 `http.OutgoingMessage.appendHeader()`
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Signed-off-by: Juan José Arboleda <soyjuanarbol@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/55467
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>
---
 test/parallel/test-http-multiple-headers.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/parallel/test-http-multiple-headers.js b/test/parallel/test-http-multiple-headers.js
index 627efdd90cc1cc..f9c654ba2f8730 100644
--- a/test/parallel/test-http-multiple-headers.js
+++ b/test/parallel/test-http-multiple-headers.js
@@ -64,6 +64,10 @@ const server = createServer(
       res.write('BODY');
       res.end();
 
+      assert.throws(() => res.appendHeader(), {
+        code: 'ERR_HTTP_HEADERS_SENT',
+      });
+
       assert.deepStrictEqual(res.getHeader('X-Res-a'), ['AAA', 'BBB', 'CCC']);
       assert.deepStrictEqual(res.getHeader('x-res-a'), ['AAA', 'BBB', 'CCC']);
       assert.deepStrictEqual(