public function viewHelperThrowsExceptionIfInvalidLocaleIdentifierIsGiven()
{
/** @var $viewHelper Format\DateViewHelper|\PHPUnit_Framework_MockObject_MockObject */
$viewHelper = $this->getMockBuilder(\Neos\FluidAdaptor\ViewHelpers\Format\DateViewHelper::class)->setMethods(array('renderChildren'))->getMock();
$viewHelper->setArguments(array('forceLocale' => '123-not-existing-locale'));
$viewHelper->render(new \DateTime());
}