` in a `phpunit.xml` file * or set the ENV variable on an OS-level. * * If the ENV variable has not been set, the tests will run with caching turned OFF. */ if (\defined('PHPCSUTILS_USE_CACHE') === false) { $useCache = \getenv('PHPCSUTILS_USE_CACHE'); if ($useCache === false) { Cache::$enabled = false; NoFileCache::$enabled = false; } else { $useCache = \filter_var($useCache, \FILTER_VALIDATE_BOOLEAN); Cache::$enabled = $useCache; NoFileCache::$enabled = $useCache; } } unset($phpcsDir, $vendorDir, $useCache);