Version

v18.16.0

Platform

Microsoft Windows NT 10.0.22621.0 x64

Subsystem

node:fs/promises

What steps will reproduce the bug?

1. Make a directory mkdir foo
2. Make a directory symlink mklink /D "bar" "foo" - bar is now a symlink to foo.

const fs = require("fs/promises")
for await (const dirent of await fs.opendir('./')) {
 console.log(dirent.name, dirent.isDirectory(), dirent.isSymbolicLink()) 
}

How often does it reproduce? Is there a required condition?

Always, on Windows

What is the expected behavior? Why is that the expected behavior?

I'd expect the output to be

bar false true
foo true false

Because bar is not a directory, but is a symlink. Therefore, I'd expect bar false true.
It could be argued that bar is actually a directory, so I might also expect bar true true.

For foo, because it is a directory, and not a symlink, I'd expect foo true false.

I'd also expect the same outputs on Linux and Windows.

What do you see instead?

bar true false
foo true false

The outputs says that bar is a directory and not a symlink.
Proof the symlink is created correctly:

Additional information

Doesn't reproduce on Ubuntu Linux 22.04 (x86_64 GNU/Linux), or any other Linux system I test it on.

1. mkdir foo
2. ln -s ./foo bar

The script outputs

foo true false
bar false true

Which is the expected result.