['clear', 'solid'], 'color' => [null, 'FF0000'], 'fill' => [null, 'FF0000'], ]; foreach ($properties as $property => $value) { [$default, $expected] = $value; $get = "get{$property}"; $set = "set{$property}"; self::assertEquals($default, $object->$get()); // Default value $object->$set($expected); self::assertEquals($expected, $object->$get()); // New value } } }