Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/kiwakim/stock/vendor/jms/serializer/tests/Serializer/SerializationContextFactoryTest.php:19 Stack trace: #0 {main} thrown in /home/kiwakim/stock/vendor/jms/serializer/tests/Serializer/SerializationContextFactoryTest.php on line 19