Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\laragon\www\siesicis\ovh-sms\vendor\jms\serializer\tests\JMS\Serializer\Tests\SerializerBuilderTest.php:33 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\jms\serializer\tests\JMS\Serializer\Tests\SerializerBuilderTest.php on line 33