Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\fphosting.eu\sub\payments\airbank\vendor\google\cloud\Core\src\Testing\System\SystemTestCase.php:36
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\fphosting.eu\sub\payments\airbank\vendor\google\cloud\Core\src\Testing\System\SystemTestCase.php on line 36