fix/ spectron e2e test

.eslintrc.json

@@ -25,6 +25,7 @@
         "plugin:@angular-eslint/template/process-inline-templates"
       ],
       "rules": {
+        "prefer-arrow/prefer-arrow-functions": 0,
         "@angular-eslint/directive-selector":  0,
         "@angular-eslint/component-selector": [
           "error",

e2e/common-setup.ts

@@ -3,34 +3,22 @@ const ELECTRON_PATH = require('electron'); // Require Electron from the binaries
 const PATH = require('path');
 
 export default function setup(): void {
-  beforeEach(async () => {
+  beforeEach(async function() {
     this.app = new APPLICATION({
       // Your electron path can be any binary
       // i.e for OSX an example path could be '/Applications/MyApp.app/Contents/MacOS/MyApp'
       // But for the sake of the example we fetch it from our node_modules.
       path: ELECTRON_PATH,
-
-      // Assuming you have the following directory structure
-
-      //  |__ my project
-      //     |__ ...
-      //     |__ main.js
-      //     |__ package.json
-      //     |__ index.html
-      //     |__ ...
-      //     |__ test
-      //        |__ spec.js  <- You are here! ~ Well you should be.
-
       // The following line tells spectron to look and use the main.js file
-      // and the package.json located 1 level above.
-      args: [PATH.join(__dirname, '..')],
+      // and the package.json located in app folder.
+      args: [PATH.join(__dirname, '../app/main.js'), PATH.join(__dirname, '../app/package.json')],
       webdriverOptions: {}
     });
 
     await this.app.start();
   });
 
-  afterEach(async () => {
+  afterEach(async function() {
     if (this.app && this.app.isRunning()) {
       await this.app.stop();
     }

e2e/main.e2e.ts

@@ -3,7 +3,7 @@ import { SpectronClient } from 'spectron';
 
 import commonSetup from './common-setup';
 
-describe('angular-electron App', () => {
+describe('angular-electron App', function() {
 
   commonSetup.apply(this);
 
@@ -13,12 +13,12 @@ describe('angular-electron App', () => {
     client = this.app.client;
   });
 
-  it('creates initial windows', async () => {
+  it('creates initial windows', async function() {
     const count = await client.getWindowCount();
     expect(count).to.equal(1);
   });
 
-  it('should display message saying App works !', async () => {
+  it('should display message saying App works !', async function() {
     const elem = await client.$('app-home h1');
     const text = await elem.getText();
     expect(text).to.equal('App works !');