public function setUp()
{
parent::setUp();
$this->viewHelper = $this->getAccessibleMock(\Neos\FluidAdaptor\ViewHelpers\Form\TextareaViewHelper::class, array('setErrorClassAttribute', 'registerFieldNameForFormTokenGeneration'));
$this->arguments['name'] = '';
$this->injectDependenciesIntoViewHelper($this->viewHelper);
$this->viewHelper->initializeArguments();
}