Shopping Cart Test

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

services.shopping-cart.js

import Ember from 'ember';


export default Ember.Service.extend({
  
  items: [],
  
  add(item) {
    var items = this.get('items');

    debugger;
    items.push(item);
    //return item;
  }
  
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

tests.unit.services.shopping-cart-test.js

import { moduleFor, test } from 'ember-qunit';

moduleFor('service:shopping-cart', 'Unit | Service | cart', {
  beforeEach() {
    var cart = this.subject();
    cart.set('items', []);
  }
});

// Replace this with your real tests.
test('it exists', function(assert) {
  let service = this.subject();
  assert.ok(service);
});

test('add() adds item to cart', function(assert) {	
  var cart = this.subject();
  cart.add({ id: 1, product: 'movie 1', quantity: 1 });
  cart.add({ id: 2, product: 'movie 2', quantity: 1 });
  
  
  console.log(cart.get('items'));
  assert.deepEqual(cart.get('items'), [
  	{ id: 1, product: 'movie 1', quantity: 1 },
    { id: 2, product: 'movie 2', quantity: 1 }
  ])
  
});


test('add() - updates the quantity by 1 when a duplicate item is added to the cart', function() {
	var cart = this.subject();
  var items;
  
  cart.add({ id: 1, product: 'movie 1' });
  cart.add({ id: 1, product: 'movie 1' });
  items = JSON.parse(window.sessionStorage.getItem('cart-test'));
});

twiddle.json

{
  "version": "0.10.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": true
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.6.0",
    "ember-data": "2.6.1",
    "ember-template-compiler": "2.6.0"
  },
  "addons": {}
}