From ab628add287003520ea68acc6d6b69b51281deb2 Mon Sep 17 00:00:00 2001
From: Terry Chen <terry@example.com>
Date: Tue, 28 Apr 2026 01:23:30 -0400
Subject: [PATCH] http2: expose writable stream state on compat response

---
 lib/internal/http2/compat.js                        | 8 ++++++++
 test/parallel/test-http2-res-writable-properties.js | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/lib/internal/http2/compat.js b/lib/internal/http2/compat.js
index 41909ffa5756f8..86dc7dc047fd78 100644
--- a/lib/internal/http2/compat.js
+++ b/lib/internal/http2/compat.js
@@ -551,6 +551,10 @@ class Http2ServerResponse extends Stream {
     return this[kStream].writableHighWaterMark;
   }
 
+  get writableObjectMode() {
+    return this[kStream].writableObjectMode;
+  }
+
   get writableFinished() {
     return this[kStream].writableFinished;
   }
@@ -559,6 +563,10 @@ class Http2ServerResponse extends Stream {
     return this[kStream].writableLength;
   }
 
+  get writableNeedDrain() {
+    return this[kStream].writableNeedDrain;
+  }
+
   set statusCode(code) {
     code |= 0;
     if (code >= 100 && code < 200)
diff --git a/test/parallel/test-http2-res-writable-properties.js b/test/parallel/test-http2-res-writable-properties.js
index 488cb1babf3e8a..5cee258a9f572b 100644
--- a/test/parallel/test-http2-res-writable-properties.js
+++ b/test/parallel/test-http2-res-writable-properties.js
@@ -7,11 +7,14 @@ const http2 = require('http2');
 const server = http2.createServer(common.mustCall((req, res) => {
   const hwm = req.socket.writableHighWaterMark;
   assert.strictEqual(res.writableHighWaterMark, hwm);
+  assert.strictEqual(res.writableObjectMode, res.stream.writableObjectMode);
+  assert.strictEqual(res.writableNeedDrain, res.stream.writableNeedDrain);
   assert.strictEqual(res.writableLength, 0);
   res.write('');
   const len = res.writableLength;
   res.write('asd');
   assert.strictEqual(res.writableLength, len + 3);
+  assert.strictEqual(res.writableNeedDrain, res.stream.writableNeedDrain);
   res.end();
   res.on('finish', common.mustCall(() => {
     assert.strictEqual(res.writableLength, 0);