Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24_x64\htdocs\haspa-scala-api\vendor\webklex\php-imap\tests\InitialTest.php:16 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\haspa-scala-api\vendor\webklex\php-imap\tests\InitialTest.php on line 16