Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/lcanetwork/public_html/qr/vendor/yoomoney/yookassa-sdk-php/tests/Helpers/StringObjectTest.php:8 Stack trace: #0 {main} thrown in /home/lcanetwork/public_html/qr/vendor/yoomoney/yookassa-sdk-php/tests/Helpers/StringObjectTest.php on line 8