public function prefixFieldNameReturnsGivenFieldNameIfFieldNamePrefixIsEmpty()
{
$viewHelper = $this->getAccessibleMock(\Neos\FluidAdaptor\ViewHelpers\Form\AbstractFormViewHelper::class, array('dummy'), array(), '', false);
$this->injectDependenciesIntoViewHelper($viewHelper);
$this->viewHelperVariableContainerData = array(\Neos\FluidAdaptor\ViewHelpers\FormViewHelper::class => array('fieldNamePrefix' => ''));
$this->assertSame('someFieldName', $viewHelper->_call('prefixFieldName', 'someFieldName'));
}