public function renderReturnsUnmodifiedSourceIfItIsANumber()
{
$source = 123.45;
$this->viewHelper->expects($this->once())->method('buildRenderChildrenClosure')->willReturn(function () {
throw new \Exception('rendderChildrenClosure was invoked but should not have been');
});
$this->viewHelper->setArguments(['value' => $source]);
$actualResult = $this->viewHelper->render();
$this->assertSame($source, $actualResult);
}