fix broken tests

deploy/app.spec.js

 const { expect, assert } = require('chai')
-const fs = require('fs')
 const express = require('express')
 const got = require('got')
 const sinon = require('sinon')
@@ -16,9 +15,9 @@ describe('authentication', () => {
   process.env['USE_DEFAULT_MEMORY_STORE'] = true
 
   const fakeFunctionObj = {
-    fakeAuthConfigureAuth: (req, res, next) => next(),
+    fakeAuthConfigureAuth: sinon.stub().callsFake((req, res, next) => next()),
     fakeAuthReady: async () => true,
-    fakeUserRouterFn: (req, res, next) => res.status(200).send()
+    fakeUserRouterFn: sinon.stub().callsFake((req, res, next) => res.status(200).send())
   }
 
   before(async () => {
@@ -61,13 +60,26 @@ describe('authentication', () => {
   after(() => {
     server.close()
   })
+  it('> auth middleware is called', async () => {
+    await got(`http://localhost:${PORT}/user`)
+    assert(
+      fakeFunctionObj.fakeAuthConfigureAuth.called,
+      'auth middleware should be called'
+    )
+  })
+
+  it('> user middleware called', async () => {
+    await got(`http://localhost:${PORT}/user`)
+    assert(
+      fakeFunctionObj.fakeUserRouterFn.called,
+      'user middleware is called'
+    )
+  })
   
   it('fakeAuthConfigureAuth is called before user router', async () => {
-    const spyFakeAuthConfigureAuth = sinon.spy(fakeFunctionObj, 'fakeAuthConfigureAuth')
-    const spyFakeUserRouterFn = sinon.spy(fakeFunctionObj, 'fakeUserRouterFn')
     await got(`http://localhost:${PORT}/user`)
     assert(
-      spyFakeAuthConfigureAuth.calledBefore(spyFakeUserRouterFn),
+      fakeFunctionObj.fakeAuthConfigureAuth.calledBefore(fakeFunctionObj.fakeUserRouterFn),
       'fakeAuthConfigureAuth is called before user router'
     )
   })