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()); }