How to set up database-heavy unit tests in Symfony2 using PHPUnit?

Question

I am quite new to the world of testing and I want to make sure I am on the right track.

I am trying to setup unit tests in a symfony2 project using phpu

Answer 1

You can use this class:

kernel = new \AppKernel('test', true);
    $this->kernel->boot();

    // Store the container and the entity manager in test case properties
    $this->container = $this->kernel->getContainer();
    $this->entityManager = $this->container->get('doctrine')->getEntityManager();

    // Build the schema for sqlite
    $this->generateSchema();


    parent::setUp();
}

public function tearDown()
{
    // Shutdown the kernel.
    $this->kernel->shutdown();

    parent::tearDown();
}

protected function generateSchema()
{
    // Get the metadatas of the application to create the schema.
    $metadatas = $this->getMetadatas();

    if ( ! empty($metadatas)) {
        // Create SchemaTool
        $tool = new SchemaTool($this->entityManager);
        $tool->createSchema($metadatas);
    } else {
        throw new Doctrine\DBAL\Schema\SchemaException('No Metadata Classes to process.');
    }
}

/**
 * Overwrite this method to get specific metadatas.
 *
 * @return Array
 */
protected function getMetadatas()
{
    return $this->entityManager->getMetadataFactory()->getAllMetadata();
}
}

And then you can test your entity. Something like this (assuming you have a entity User)

//Entity Test
class EntityTest extends TestCase {

    protected $user;

    public function setUp()
    {
         parent::setUp();
         $this->user = new User();
         $this->user->setUsername('username');
         $this->user->setPassword('p4ssw0rd');


         $this->entityManager->persist($this->user);
         $this->entityManager->flush();

    }

    public function testUser(){

         $this->assertEquals($this->user->getUserName(), "username");
         ...

    }

}

Hope this help.

Source: theodo.fr/blog/2011/09/symfony2-unit-database-tests