Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\sites\wasalnah.sabti-h.com\vendor\theseer\tokenizer\tests\Issue18Test.php:10 Stack trace: #0 {main} thrown in C:\sites\wasalnah.sabti-h.com\vendor\theseer\tokenizer\tests\Issue18Test.php on line 10