Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/melihata/public_html/vendor/tgalopin/html-sanitizer/tests/Sanitizer/StringSanitizerTraitTest.php:17 Stack trace: #0 {main} thrown in /home/melihata/public_html/vendor/tgalopin/html-sanitizer/tests/Sanitizer/StringSanitizerTraitTest.php on line 17