public function testData()
{
$object = new Pie3D();
$this->assertInternalType('array', $object->getSeries());
$this->assertEmpty($object->getSeries());
$array = array(new Series(), new Series());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Type\\Pie3D', $object->setSeries());
$this->assertEmpty($object->getSeries());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Type\\Pie3D', $object->setSeries($array));
$this->assertCount(count($array), $object->getSeries());
}