public function renderOutputsChildNodesByDefault()
{
$this->request->expects($this->atLeastOnce())->method('getInternalArgument')->with('__submittedArgumentValidationResults')->will($this->returnValue(null));
$this->viewHelper->expects($this->once())->method('renderChildren')->will($this->returnValue('child nodes'));
$this->assertSame('child nodes', $this->viewHelper->render());
}