/**
* Create the cache directory if needed
*/
- public static function setUpBeforeClass()
+ public static function setUpBeforeClass(): void
{
if (!is_dir(self::$testCacheDir)) {
mkdir(self::$testCacheDir);
/**
* Reset the page cache
*/
- public function setUp()
+ protected function setUp(): void
{
if (file_exists(self::$filename)) {
unlink(self::$filename);