public function viewHelperUsesChildNodesIfDateAttributeIsNotSpecified()
{
/** @var $viewHelper Format\DateViewHelper|\PHPUnit_Framework_MockObject_MockObject */
$viewHelper = $this->getMockBuilder(\Neos\FluidAdaptor\ViewHelpers\Format\DateViewHelper::class)->setMethods(array('renderChildren'))->getMock();
$viewHelper->expects($this->once())->method('renderChildren')->will($this->returnValue(new \DateTime('1980-12-13')));
$actualResult = $viewHelper->render();
$this->assertEquals('1980-12-13', $actualResult);
}