test: dir class initialisation w/o handler

Covering the case when init Dir class without passing
handle paramd to constructor.

PR-URL: #30313
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

test/parallel/test-fs-read.js

@@ -68,6 +68,10 @@ test(new Uint8Array(expected.length),
   }));
 }
 
+assert.throws(() => new fs.Dir(), {
+  code: 'ERR_MISSING_ARGS',
+});
+
 assert.throws(
   () => fs.read(fd, Buffer.alloc(1), 0, 1, 0),
   {