public function redis(UnitTester $I)
{
$I->wantTo('fetch metadata from memory');
/** @var \Phalcon\Mvc\Model\MetaDataInterface $md */
$md = $I->grabServiceFromDi('modelsMetadata');
$md->reset();
$I->assertTrue($md->isEmpty());
Robots::findFirst();
$I->assertFalse($md->isEmpty());
$md->reset();
$I->assertTrue($md->isEmpty());
}