Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\electronica\vendor\doctrine\doctrine-bundle\Tests\DependencyInjection\XMLSchemaTest.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\doctrine\doctrine-bundle\Tests\DependencyInjection\XMLSchemaTest.php on line 17