AsseticBundle\Service::setFilterManager PHP Метод

    public function setFilterManager(AsseticFilterManager $filterManager)
    {
        $this->filterManager = $filterManager;
    }

 public function testSetFilterManager()
 {
     $value = new \Assetic\FilterManager();
     $result = $this->object->setFilterManager($value);
     $this->assertNull($result);
     $this->assertSame($value, $this->object->getFilterManager());
 }