Neos\FluidAdaptor\ViewHelpers\Form\HiddenViewHelper::initializeArguments PHP Method

    public function initializeArguments()
    {
        parent::initializeArguments();
        $this->registerUniversalTagAttributes();
    }

 public function setUp()
 {
     parent::setUp();
     $this->viewHelper = $this->getAccessibleMock(\Neos\FluidAdaptor\ViewHelpers\Form\HiddenViewHelper::class, array('setErrorClassAttribute', 'getName', 'getValueAttribute', 'registerFieldNameForFormTokenGeneration'));
     $this->injectDependenciesIntoViewHelper($this->viewHelper);
     $this->viewHelper->initializeArguments();
 }