Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\xampp7\htdocs\www\nbkm\show_sr\vendor\sebastian\object-enumerator\tests\EnumeratorTest.php:19 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_sr\vendor\sebastian\object-enumerator\tests\EnumeratorTest.php on line 19