mockbuilder-pre.php

<?php

namespace Tests\AppBundle\Manager;

use AppBundle\Manager\DocumentManager;
use AppBundle\Document\Post;

class DocumentManagerTest extends \PHPUnit_Framework_TestCase
{
    public function testAddDocument()
    {
       	$admin = new DocumentManager();
       	$document = $this->getMock(Post::class);
       	$document->expects($this->once())
            ->method('getSlug')
            ->will($this->returnValue('post-slug'));
       	
        $this->assertTrue($admin->addDocument($document), 'El documento no se ha podido agregar');
    }
}