Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/symfony/css-selector/Symfony/Component/CssSelector/Tests/Parser/ReaderTest.php on line 17

Call Stack:
    0.0004     267600   1. {main}() /var/www/html/dev/spa/vendor/symfony/css-selector/Symfony/Component/CssSelector/Tests/Parser/ReaderTest.php:0