Faker uploaded file provider

fixtures.yml

Acme\Entity\Upload:
    upload_fix:
        file: <upload('fixtures/files/image-1.jpg')>
    upload_random:
        file: |
            <upload(array(
                'fixtures/files/image-1.jpg',
                'fixtures/files/image-2.jpg',
                'fixtures/files/image-3.jpg',
                'fixtures/files/image-4.jpg',
                'fixtures/files/image-5.jpg',
            ))>

LoadData.php

<?php 

namespace  Acme\DemoBundle\Fixtures\ORM;

use Doctrine\Common\DataFixtures\FixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Nelmio\Alice\Fixtures;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser;

/**
 * Load data
 */
class LoadData implements FixtureInterface, ContainerAwareInterface
{

    /**
     * @var \Symfony\Component\DependencyInjection\ContainerInterface Container
     */
    private $container;

    /**
     * {@inheritdoc}
     */
    public function setContainer(ContainerInterface $container = null)
    {
        $this->container = $container;
    }

    /**
     * {@inheritdoc}
     */
    public function load(ObjectManager $manager)
    {
        Fixtures::load(
            array(
                __DIR__.'/fixtures.yml',
            ),
            $manager,
            array(
                'providers' => array($this)
            )
        );
    }

    /**
     * Generate a fake UploadedFile
     * 
     * This method works for all upload based on Doctrine events
     */
    public function upload($filename)
    {
        if (is_array($filename)) {
            $filename = \Faker\Provider\Base::randomElement($filename);
        }

        $path = sprintf('/tmp/%s', uniqid());

        $copy = copy($filename, $path);

        if (!$copy) {
            throw new \Exception('Copy failed');
        }

        $mimetype = MimeTypeGuesser::getInstance()->guess($path);
        $size     = filesize($path);

        $file = new UploadedFile($path, $filename, $mimetype, $size, null, true);

        return $file;
    }
    
}

Upload.php

<?php

namespace Acme\Entity;

/**
 * @ORM\Table(name="upload")
 * @ORM\Entity
 * @Vich\Uploadable
 */
class Upload
{
    /**
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @Vich\UploadableField(mapping="photo", fileNameProperty="filename")
     */
    private $file;

    /**
     * @ORM\Column(name="filename", type="string", length=255, nullable=true)
     */
    private $filename;

    /**
     * @ORM\Column(name="updatedAt", type="datetime")
     */
    private $updatedAt;

    public function setFile(File $file = null)
    {
        $this->file = $file;
        $this->updatedAt = new \DateTime();

        return $this;
    }
}