Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/filp/whoops/tests/Whoops/TestCase.php on line 11

Call Stack:
    0.0003     233496   1. {main}() /var/www/html/dev/spa/vendor/filp/whoops/tests/Whoops/TestCase.php:0