Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/phpunit/php-code-coverage/tests/_files/NamespaceCoverageClassTest.php:4 Stack trace: #0 {main} thrown in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/phpunit/php-code-coverage/tests/_files/NamespaceCoverageClassTest.php on line 4