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WARNING: You are browsing the documentation for Symfony 4.1 which is not maintained anymore. Consider upgrading your projects to Symfony 4.3.

You are browsing the Symfony 4.1 documentation, which changes significantly from Symfony 3.x. If your app doesn't use Symfony 4.1 yet, browse the Symfony 3.4 documentation.

How to Test Doctrine Repositories

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How to Test Doctrine Repositories

Unit testing Doctrine repositories in a Symfony project is not recommended. When you're dealing with a repository, you're really dealing with something that's meant to be tested against a real database connection.

Fortunately, you can easily test your queries against a real database, as described below.

Functional Testing

If you need to actually execute a query, you will need to boot the kernel to get a valid connection. In this case, you'll extend the KernelTestCase to have the Symfony environment available:

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// tests/Repository/ProductRepositoryTest.php
namespace App\Tests\Repository;

use App\Entity\Product;
use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;

class ProductRepositoryTest extends KernelTestCase
{
    /**
     * @var \Doctrine\ORM\EntityManager
     */
    private $entityManager;

    /**
     * {@inheritDoc}
     */
    protected function setUp()
    {
        $kernel = self::bootKernel();

        $this->entityManager = $kernel->getContainer()
            ->get('doctrine')
            ->getManager();
    }

    public function testSearchByCategoryName()
    {
        $products = $this->entityManager
            ->getRepository(Product::class)
            ->searchByCategoryName('foo')
        ;

        $this->assertCount(1, $products);
    }

    /**
     * {@inheritDoc}
     */
    protected function tearDown()
    {
        parent::tearDown();

        $this->entityManager->close();
        $this->entityManager = null; // avoid memory leaks
    }
}

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.