Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/goe/vendor/mike42/escpos-php/test/unit/CupsPrintConnectorTest.php:4 Stack trace: #0 {main} thrown in /var/www/html/goe/vendor/mike42/escpos-php/test/unit/CupsPrintConnectorTest.php on line 4