Neos\FluidAdaptor\ViewHelpers\Form\HiddenViewHelper::render PHP Метод

    public function render()
    {
        $name = $this->getName();
        $this->registerFieldNameForFormTokenGeneration($name);
        $this->tag->addAttribute('type', 'hidden');
        $this->tag->addAttribute('name', $name);
        $this->tag->addAttribute('value', $this->getValueAttribute(true));
        $this->addAdditionalIdentityPropertiesIfNeeded();
        $this->setErrorClassAttribute();
        return $this->tag->render();
    }

 /**
  * @test
  */
 public function renderCorrectlySetsTagNameAndDefaultAttributes()
 {
     $mockTagBuilder = $this->getMockBuilder(TagBuilder::class)->setMethods(array('setTagName', 'addAttribute'))->getMock();
     $mockTagBuilder->expects($this->any())->method('setTagName')->with('input');
     $mockTagBuilder->expects($this->at(2))->method('addAttribute')->with('type', 'hidden');
     $mockTagBuilder->expects($this->at(3))->method('addAttribute')->with('name', 'foo');
     $this->viewHelper->expects($this->once())->method('registerFieldNameForFormTokenGeneration')->with('foo');
     $mockTagBuilder->expects($this->at(4))->method('addAttribute')->with('value', 'bar');
     $this->viewHelper->expects($this->once())->method('getName')->will($this->returnValue('foo'));
     $this->viewHelper->expects($this->once())->method('getValueAttribute')->will($this->returnValue('bar'));
     $this->viewHelper->injectTagBuilder($mockTagBuilder);
     $this->viewHelper->initialize();
     $this->viewHelper->render();
 }