Before we start writing our functional tests, we need to edit the phpunit.xml.dist file by adding our bundle Tests directory to the testsuite paths, as follows:
<testsuites>
<testsuite name="Project Test Suite">
<-- ... other elements ... -->
<directory>src/AppBundle/Tests</directory>
<-- ... other elements ... -->
</testsuite>
</testsuites>Our functional tests will cover only one controller, since we have no other. We start off by creating a src/AppBundle/Tests/Controller/DefaultControllerTest.php file with content as follows:
namespace AppBundle\Tests\Controller;
use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
class DefaultControllerTest extends WebTestCase
{
//…
}The next step is to test each and every one of our controller actions. At the very least we should test if the page content is being outputted properly.