public function testShadow()
{
$object = new RichText();
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\AbstractShape', $object->setShadow());
$this->assertNull($object->getShadow());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\AbstractShape', $object->setShadow(new Shadow()));
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Shadow', $object->getShadow());
}