doctrine2/tests/Doctrine/Tests/Mocks/MetadataDriverMock.php

<?php

namespace Doctrine\Tests\Mocks;

class MetadataDriverMock
{
    public function loadMetadataForClass($className, \Doctrine\ORM\Mapping\ClassMetadata $metadata)
    {
        return;
    }

    public function isTransient($className)
    {
        return false;
    }
}