public function testLayout()
{
$object = new SlideMaster();
// Mock Post
$mockSlideLayout = $this->getMockForAbstractClass('PhpOffice\\PhpPresentation\\Slide\\SlideLayout', array($object));
$this->assertEmpty($object->getAllSlideLayouts());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Slide\\SlideLayout', $object->createSlideLayout());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Slide\\SlideLayout', $object->addSlideLayout($mockSlideLayout));
$this->assertCount(2, $object->getAllSlideLayouts());
}