From f16eca4383914e151b35d95f4ff5b4a885cf7ea1 Mon Sep 17 00:00:00 2001
From: Mithun Sasidharan <mithunsasidharan89@gmail.com>
Date: Thu, 14 Dec 2017 21:44:08 +0530
Subject: [PATCH] test: improve coverage for util.promisify

Add a test that confirms that non-function arguments
passed to util.promisify throw an ERR_INVALID_ARG_TYPE
error.

PR-URL: https://github.com/nodejs/node/pull/17591
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
---
 test/parallel/test-util-promisify.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/parallel/test-util-promisify.js b/test/parallel/test-util-promisify.js
index 656d6d60aa8f13..235d5c40db7677 100644
--- a/test/parallel/test-util-promisify.js
+++ b/test/parallel/test-util-promisify.js
@@ -184,3 +184,13 @@ const stat = promisify(fs.stat);
     })
   ]);
 }
+
+[undefined, null, true, 0, 'str', {}, [], Symbol()].forEach((input) => {
+  common.expectsError(
+    () => promisify(input),
+    {
+      code: 'ERR_INVALID_ARG_TYPE',
+      type: TypeError,
+      message: 'The "original" argument must be of type Function'
+    });
+});