Functional testing

Similar to unit testing, we will only focus on a single functional test, as doing anything more robust would be out of the scope of this chapter. We will write a simple code that adds a product to the cart and accesses the checkout page. In order to add an item to the cart, here we also need to simulate the user login.

We write the src/Foggyline/SalesBundle/Tests/Controller/CartControllerTest.php test as follows:

namespace Foggyline\SalesBundle\Tests\Controller;

use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
use Symfony\Component\BrowserKit\Cookie;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;

class CartControllerTest extends WebTestCase
{
  private $client = null;

  public function setUp()
  {
    $this->client = static::createClient();
  }

  public function testAddToCartAndAccessCheckout()
  {
    $this->logIn();

    $crawler = $this->client->request('GET', '/');
    $crawler = $this->client->click($crawler->selectLink('Add to Cart')->link());
    $crawler = $this->client->followRedirect();

    $this->assertTrue($this->client->getResponse()->isSuccessful());
    $this->assertGreaterThan(0, $crawler->filter('html:contains("added to cart")')->count());

    $crawler = $this->client->request('GET', '/sales/cart/');
    $crawler = $this->client->click($crawler->selectLink('Go to Checkout')->link());


    $this->assertTrue($this->client->getResponse()->isSuccessful());
    $this->assertGreaterThan(0, $crawler->filter('html:contains("Checkout")')->count());
  }

  private function logIn()
  {
    $session = $this->client->getContainer()->get('session');
    $firewall = 'foggyline_customer'; // firewall name
    $em = $this->client->getContainer()->get('doctrine')->getManager();
    $user = $em->getRepository('FoggylineCustomerBundle:Customer')->findOneByUsername('ajzele@gmail.com');

    $token = new UsernamePasswordToken($user, null, $firewall, array('ROLE_USER'));
    $session->set('_security_' . $firewall, serialize($token));
    $session->save();

    $cookie = new Cookie($session->getName(), $session->getId());
    $this->client->getCookieJar()->set($cookie);
  }
}

Once run, the test will simulate the customer login, add an item to the cart, and try to access the checkout page. Depending on the actual customers we have in our database, we might need to change the customer e-mail provided in the preceding test.

Running the phpunit command now should successfully execute our tests.

Table of Contents for PHP 7: Real World Application Development

Functional testing

Table of Contents for
PHP 7: Real World Application Development