From e83e5399929fc541b67d154e9eee0ec1d24005a0 Mon Sep 17 00:00:00 2001
From: Alex Deas <alex@primarybid.com>
Date: Fri, 5 Apr 2019 11:51:09 +0100
Subject: [PATCH] Persist mutations to res.locals

Adds persistence to res.locals by using Object constructor syntax rather
than Object literal syntax. This returns an object reference and means
that when passed to a function the reference is updated. As this
reference is avilable outside the middleware being tested it means that
changes to res.locals can be tested.
---
 src/index.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index a6a81d1..e4a38d6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -34,7 +34,6 @@ export const mockRes = (options = {}) => {
     json: sinon.stub().returns(ret),
     jsonp: sinon.stub().returns(ret),
     links: sinon.stub().returns(ret),
-    locals: {},
     location: sinon.stub().returns(ret),
     redirect: sinon.stub().returns(ret),
     render: sinon.stub().returns(ret),
@@ -47,5 +46,7 @@ export const mockRes = (options = {}) => {
     vary: sinon.stub().returns(ret),
     write: sinon.stub().returns(ret),
     writeHead: sinon.stub().returns(ret),
-  }, options)
+  },
+  options,
+  { locals: new Object(options.locals || {}) })
 }