Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/test/unit/EscposPrintBufferTest.php:15 Stack trace: #0 {main} thrown in /home/caferoyma/public_html/mypymes/post_printer_server/vendor/mike42/escpos-php/test/unit/EscposPrintBufferTest.php on line 15