Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\www\vendor\picqer\php-barcode-generator\tests\DynamicHtmlRendererTest.php:5 Stack trace: #0 {main} thrown in D:\www\vendor\picqer\php-barcode-generator\tests\DynamicHtmlRendererTest.php on line 5