From a750e133020b1226f6714772a5f69df3fff57d5b Mon Sep 17 00:00:00 2001
From: starkwang <381152119@qq.com>
Date: Sat, 1 Jul 2017 23:56:38 +0800
Subject: [PATCH] path: Fix the error message of path.format

---
 lib/path.js                             |  4 ++--
 test/parallel/test-path-format-error.js | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 test/parallel/test-path-format-error.js

diff --git a/lib/path.js b/lib/path.js
index f8d0e822bf1d9b..f7d02b992f626d 100644
--- a/lib/path.js
+++ b/lib/path.js
@@ -960,7 +960,7 @@ const win32 = {
   format: function format(pathObject) {
     if (pathObject === null || typeof pathObject !== 'object') {
       throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'pathObject', 'Object',
-                                typeof pathObject);
+                                pathObject);
     }
     return _format('\\', pathObject);
   },
@@ -1503,7 +1503,7 @@ const posix = {
   format: function format(pathObject) {
     if (pathObject === null || typeof pathObject !== 'object') {
       throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'pathObject', 'Object',
-                                typeof pathObject);
+                                pathObject);
     }
     return _format('/', pathObject);
   },
diff --git a/test/parallel/test-path-format-error.js b/test/parallel/test-path-format-error.js
new file mode 100644
index 00000000000000..32a2a079b77600
--- /dev/null
+++ b/test/parallel/test-path-format-error.js
@@ -0,0 +1,22 @@
+'use strict';
+const common = require('../common');
+const path = require('path');
+const assert = require('assert');
+
+const invalidInput = [
+  111,
+  'foo',
+  undefined,
+  () => {}
+];
+invalidInput.forEach((val) => {
+  const err = common.expectsError({
+    code: 'ERR_INVALID_ARG_TYPE',
+    type: TypeError,
+    message: 'The "pathObject" argument must be of type Object. ' +
+             `Received type ${typeof val}`
+  });
+  assert.throws(function() {
+    path.format(val);
+  }, err);
+});