From 21f729de1b1d3845a9f1038be5a8765272c350a5 Mon Sep 17 00:00:00 2001
From: Scott Feeney <scott@oceanbase.org>
Date: Wed, 27 Nov 2024 16:19:08 -0800
Subject: [PATCH] add test for createWriteStream accepting fh as fd

---
 src/__tests__/volume.test.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/__tests__/volume.test.ts b/src/__tests__/volume.test.ts
index bc5ba0ff0..5f132e8e1 100644
--- a/src/__tests__/volume.test.ts
+++ b/src/__tests__/volume.test.ts
@@ -1,3 +1,4 @@
+import { promisify } from 'util';
 import { URL } from 'url';
 import { Link } from '../node';
 import Stats from '../Stats';
@@ -1431,4 +1432,16 @@ describe('volume', () => {
       expect(new StatWatcher(vol).vol).toBe(vol);
     });
   });
+  describe('.createWriteStream', () => {
+    it('accepts filehandle as fd option', async () => {
+      const vol = new Volume();
+      const fh = await vol.promises.open('/test.txt', 'wx', 0o600);
+      const writeStream = vol.createWriteStream('', { fd: fh });
+      await promisify(writeStream.write.bind(writeStream))(Buffer.from('Hello'));
+      await promisify(writeStream.close.bind(writeStream))();
+      expect(vol.toJSON()).toEqual({
+        '/test.txt': 'Hello',
+      });
+    });
+  });
 });