public function testTextStyles() { // Mock Pre $mockTextStyle = $this->getMockForAbstractClass('PhpOffice\\PhpPresentation\\Style\\TextStyle'); $object = new SlideMaster(); $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\TextStyle', $object->getTextStyles()); $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Slide\\SlideMaster', $object->setTextStyles($mockTextStyle)); $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\TextStyle', $object->getTextStyles()); }