Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\AppServ\www\greenhess-storage\vendor\klarna\kco_rest\tests\Unit\Transport\ResponseValidatorTest.php:27 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\klarna\kco_rest\tests\Unit\Transport\ResponseValidatorTest.php on line 27