From 691aabbd4122cfec710fd208f0e3e1739dde9133 Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Thu, 12 Sep 2019 11:12:34 -0400
Subject: [PATCH] fix(mongoose): support passing options object to Mongoose
 constructor

Fix #8144
---
 lib/index.js       | 9 ++++++---
 test/index.test.js | 6 ++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index f2ac3678515..c76914492c7 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -56,19 +56,22 @@ require('./helpers/printJestWarning');
  *     const m = new mongoose.Mongoose();
  *
  * @api public
+ * @param {Object} options see [`Mongoose#set()` docs](/docs/api/mongoose.html#mongoose_Mongoose-set)
  */
 function Mongoose(options) {
   this.connections = [];
   this.models = {};
   this.modelSchemas = {};
   // default global options
-  this.options = {
+  this.options = Object.assign({
     pluralization: true
-  };
+  }, options);
   const conn = this.createConnection(); // default connection
   conn.models = this.models;
 
-  this._pluralize = legacyPluralize;
+  if (this.options.pluralization) {
+    this._pluralize = legacyPluralize;
+  }
 
   // If a user creates their own Mongoose instance, give them a separate copy
   // of the `Schema` constructor so they get separate custom types. (gh-6933)
diff --git a/test/index.test.js b/test/index.test.js
index 8e487e4eca4..e9e7eee8a01 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -121,6 +121,12 @@ describe('mongoose module:', function() {
     done();
   });
 
+  it('options object (gh-8144)', function() {
+    const mongoose = new Mongoose({ bufferCommands: false });
+
+    assert.strictEqual(mongoose.options.bufferCommands, false);
+  });
+
   it('bufferCommands option (gh-5879)', function(done) {
     const mongoose = new Mongoose();