Symfony2 helper class to handle EntityManager transaction between tests.

DatabaseWebTest.php

<?php

namespace MyBundle\TestBundle\Lib;

use Doctrine\ORM\EntityManager;
use \Symfony\Bundle\FrameworkBundle\Test\WebTestCase;

/**
 * Helper class to help manager transaction for each test,
 * database needs to be initialized once before whole test suite
 */
abstract class DatabaseWebTest extends WebTestCase {

    /**
     * helper to acccess EntityManager
     */
    protected $em;

    /**
     * Helper to access test Client
     */
    protected $client;

    /**
     * Before each test we start a new transaction
     * everything done in the test will be canceled ensuring isolation et speed
     */
    protected function setUp()
    {
        parent::setUp();
        $this->client = $this->createClient();
        $this->em = static::$kernel->getContainer()
            ->get('doctrine')
            ->getManager();
        $this->em->beginTransaction();
    }

    /**
     * After each test, a rollback reset the state of 
     * the database
     */
    protected function tearDown()
    {
        parent::tearDown();
        $this->em->rollback();
        $this->em->close();
    }
}

I would recommend to use this instead 😉

https://github.com/dmaicher/doctrine-test-bundle

It will also work for WebTestCase when performing functional tests.