Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/symfony/process/Symfony/Component/Process/Tests/AbstractProcessTest.php on line 21

Call Stack:
    0.0023     430224   1. {main}() /var/www/html/dev/spa/vendor/symfony/process/Symfony/Component/Process/Tests/AbstractProcessTest.php:0