Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\londoncityroom\vendor\microsoft\kiota-serialization-form\tests\FormParseNodeTest.php:21
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\londoncityroom\vendor\microsoft\kiota-serialization-form\tests\FormParseNodeTest.php on line 21