Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\security-core\Tests\Encoder\NativePasswordEncoderTest.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\security-core\Tests\Encoder\NativePasswordEncoderTest.php on line 20