Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/symfony/process/Symfony/Component/Process/Tests/ProcessBuilderTest.php on line 17

Call Stack:
    0.0010     289008   1. {main}() /var/www/html/dev/spa/vendor/symfony/process/Symfony/Component/Process/Tests/ProcessBuilderTest.php:0