Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home2/cp805728/public_html/abc/packages/mike42/escpos-php/test/integration/ExampleTest.php:4 Stack trace: #0 {main} thrown in /home2/cp805728/public_html/abc/packages/mike42/escpos-php/test/integration/ExampleTest.php on line 4