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diff --git a/tests/node_compat/test/parallel/test-fs-write-file-sync.js b/tests/node_compat/test/parallel/test-fs-write-file-sync.js
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+++ b/tests/node_compat/test/parallel/test-fs-write-file-sync.js
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+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
+
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+const common = require('../common');
+
+if (!common.isMainThread)
+  common.skip('Setting process.umask is not supported in Workers');
+
+const assert = require('assert');
+const path = require('path');
+const fs = require('fs');
+
+// On Windows chmod is only able to manipulate read-only bit. Test if creating
+// the file in read-only mode works.
+const mode = common.isWindows ? 0o444 : 0o755;
+
+// Reset the umask for testing
+process.umask(0o000);
+
+const tmpdir = require('../common/tmpdir');
+tmpdir.refresh();
+
+// Test writeFileSync
+{
+  const file = path.join(tmpdir.path, 'testWriteFileSync.txt');
+
+  fs.writeFileSync(file, '123', { mode });
+  const content = fs.readFileSync(file, { encoding: 'utf8' });
+  assert.strictEqual(content, '123');
+  assert.strictEqual(fs.statSync(file).mode & 0o777, mode);
+}
+
+// Test appendFileSync
+{
+  const file = path.join(tmpdir.path, 'testAppendFileSync.txt');
+
+  fs.appendFileSync(file, 'abc', { mode });
+  const content = fs.readFileSync(file, { encoding: 'utf8' });
+  assert.strictEqual(content, 'abc');
+  assert.strictEqual(fs.statSync(file).mode & mode, mode);
+}
+
+// Test writeFileSync with file descriptor
+{
+  // Need to hijack fs.open/close to make sure that things
+  // get closed once they're opened.
+  const _openSync = fs.openSync;
+  const _closeSync = fs.closeSync;
+  let openCount = 0;
+
+  fs.openSync = (...args) => {
+    openCount++;
+    return _openSync(...args);
+  };
+
+  fs.closeSync = (...args) => {
+    openCount--;
+    return _closeSync(...args);
+  };
+
+  const file = path.join(tmpdir.path, 'testWriteFileSyncFd.txt');
+  const fd = fs.openSync(file, 'w+', mode);
+
+  fs.writeFileSync(fd, '123');
+  fs.closeSync(fd);
+  const content = fs.readFileSync(file, { encoding: 'utf8' });
+  assert.strictEqual(content, '123');
+  assert.strictEqual(fs.statSync(file).mode & 0o777, mode);
+
+  // Verify that all opened files were closed.
+  assert.strictEqual(openCount, 0);
+  fs.openSync = _openSync;
+  fs.closeSync = _closeSync;
+}
+
+// Test writeFileSync with flags
+{
+  const file = path.join(tmpdir.path, 'testWriteFileSyncFlags.txt');
+
+  fs.writeFileSync(file, 'hello ', { encoding: 'utf8', flag: 'a' });
+  fs.writeFileSync(file, 'world!', { encoding: 'utf8', flag: 'a' });
+  const content = fs.readFileSync(file, { encoding: 'utf8' });
+  assert.strictEqual(content, 'hello world!');
+}
+
+// Test writeFileSync with an object with an own toString function
+{
+  // Runtime deprecated by DEP0162
+  common.expectWarning('DeprecationWarning',
+                       'Implicit coercion of objects with own toString property is deprecated.',
+                       'DEP0162');
+  const file = path.join(tmpdir.path, 'testWriteFileSyncStringify.txt');
+  const data = {
+    toString() {
+      return 'hello world!';
+    }
+  };
+
+  fs.writeFileSync(file, data, { encoding: 'utf8', flag: 'a' });
+  const content = fs.readFileSync(file, { encoding: 'utf8' });
+  assert.strictEqual(content, String(data));
+}