public function testSlide()
{
$object = new RichText();
$oSlide1 = new Slide();
$oSlide2 = new Slide();
$oSlide3 = new Slide();
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\AbstractShape', $object->setSlide());
$this->assertNull($object->getSlide());
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\AbstractShape', $object->setSlide($oSlide1, true));
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\Slide', $object->getSlide());
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\AbstractShape', $object->setSlide($oSlide2, true));
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\Slide', $object->getSlide());
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\AbstractShape', $object->setSlide($oSlide3, true));
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\Slide', $object->getSlide());
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\AbstractShape', $object->setSlide($oSlide3, true));
$this->assertInstanceOf('PhpOffice\\PhpPowerpoint\\Slide', $object->getSlide());
}