Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/wp-content/plugins/updraftplus/vendor/ralouphie/getallheaders/tests/GetAllHeadersTest.php:3 Stack trace: #0 {main} thrown in /var/www/html/wp-content/plugins/updraftplus/vendor/ralouphie/getallheaders/tests/GetAllHeadersTest.php on line 3