Sonata\Component\Currency\CurrencyFormType::buildForm PHP Метод

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        parent::buildForm($builder, $options);
        $builder->addModelTransformer($this->currencyTransformer);
    }

 public function testBuildForm()
 {
     $formBuilder = $this->getMockBuilder('Symfony\\Component\\Form\\FormBuilder')->disableOriginalConstructor()->getMock();
     $formBuilder->expects($this->once())->method('addModelTransformer');
     $this->currencyFormType->buildForm($formBuilder, array());
 }