public function testLineSpacing()
{
$object = new Paragraph();
$valueExpected = rand(1, 100);
$this->assertEquals(100, $object->getLineSpacing());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\Paragraph', $object->setLineSpacing($valueExpected));
$this->assertEquals($valueExpected, $object->getLineSpacing());
}