Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/wtconnects/public_html/vendor/yoomoney/yookassa-sdk-php/tests/Client/UserAgentTest.php:13 Stack trace: #0 {main} thrown in /home/wtconnects/public_html/vendor/yoomoney/yookassa-sdk-php/tests/Client/UserAgentTest.php on line 13