fs: throw fchmodSync errors in JS

PR-URL: https://github.com/nodejs/node/pull/19041
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/test/parallel/test-fs-error-messages.js b/test/parallel/test-fs-error-messages.js
index dc925069ba..d14a5b8eff 100644
--- a/test/parallel/test-fs-error-messages.js
+++ b/test/parallel/test-fs-error-messages.js
@@ -729,3 +729,23 @@ if (!common.isAIX) {
     );
   });
 }
+
+// fchmod
+{
+  const validateError = (err) => {
+    assert.strictEqual(err.message, 'EBADF: bad file descriptor, fchmod');
+    assert.strictEqual(err.errno, uv.UV_EBADF);
+    assert.strictEqual(err.code, 'EBADF');
+    assert.strictEqual(err.syscall, 'fchmod');
+    return true;
+  };
+
+  common.runWithInvalidFD((fd) => {
+    fs.fchmod(fd, 0o666, common.mustCall(validateError));
+
+    assert.throws(
+      () => fs.fchmodSync(fd, 0o666),
+      validateError
+    );
+  });
+}