Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/kfirstai/public_html/rw_common/plugins/stacks/total-cms/vendor/michelf/php-markdown/test/unit/MarkdownExtraTest.php:3
Stack trace:
#0 {main}
  thrown in /home/kfirstai/public_html/rw_common/plugins/stacks/total-cms/vendor/michelf/php-markdown/test/unit/MarkdownExtraTest.php on line 3