Functional testing

Our entire module has only two controller classes that we want to test for responses. We want to make sure that the process method of the FlatRateController and DynamicRateController classes are accessible and working.

We will first create an src/Foggyline/ShipmentBundle/Tests/Controller/FlatRateControllerTest.php file, with content as follows:

namespace Foggyline\ShipmentBundle\Tests\Controller;

use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
class FlatRateControllerTest extends WebTestCase
{
  private $client;
  private $router;

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

  public function testProcessAction()
  {
    $this->client->request('GET', $this->router->generate('foggyline_shipment_flat_rate_process'));
    $this->assertSame(200, $this->client->getResponse()->getStatusCode());
    $this->assertSame('application/json', $this->client->getResponse()->headers->get('Content-Type'));
    $this->assertContains('success', $this->client->getResponse()->getContent());
    $this->assertNotEmpty($this->client->getResponse()->getContent());
  }
}

We will then create a src/Foggyline/ShipmentBundle/Tests/Controller/DynamicRateControllerTest.php file, with content as follows:

namespace Foggyline\ShipmentBundle\Tests\Controller;

use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;

class DynamicRateControllerTest extends WebTestCase
{
  private $client;
  private $router;

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

  public function testProcessAction()
  {
    $this->client->request('GET', $this->router->generate('foggyline_shipment_dynamic_rate_process'));
    $this->assertSame(200, $this->client->getResponse()->getStatusCode());
    $this->assertSame('application/json', $this->client->getResponse()->headers->get('Content-Type'));
    $this->assertContains('success', $this->client->getResponse()->getContent());
    $this->assertNotEmpty($this->client->getResponse()->getContent());
  }
}

Both tests are nearly identical. They contain a test for a single process action method. As it is coded now, the controller process action simply returns a fixed success JSON response. We can easily extend it to return more than just a fixed response and can accompany that change with a more robust functional test.

Table of Contents for PHP 7: Real World Application Development

Functional testing

Table of Contents for
PHP 7: Real World Application Development