From c8b87207c0390757b08e8e6d334560d7d6047af6 Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Sun, 20 Jan 2019 11:18:13 -0500
Subject: [PATCH] style: fix lint

---
 test/document.test.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/test/document.test.js b/test/document.test.js
index f14c3762eca..db3edf7fc43 100644
--- a/test/document.test.js
+++ b/test/document.test.js
@@ -4994,10 +4994,10 @@ describe('document', function() {
       var Book = db.model('gh7302_Book', bookSchema);
 
       return Author.create({ name: 'Victor Hugo' }).
-        then(author => Book.create({ author: author._id })).
-        then(() => Book.findOne()).
-        then(doc => doc.populate('author').execPopulate()).
-        then(doc => {
+        then(function(author) { return Book.create({ author: author._id }); }).
+        then(function() { return Book.findOne(); }).
+        then(function(doc) { return doc.populate('author').execPopulate(); }).
+        then(function(doc) {
           doc.author = {};
           assert.ok(!doc.author.name);
           assert.ifError(doc.validateSync());