Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/symfony/css-selector/Symfony/Component/CssSelector/Tests/Parser/ParserTest.php on line 21

Call Stack:
    0.0041     329496   1. {main}() /var/www/html/dev/spa/vendor/symfony/css-selector/Symfony/Component/CssSelector/Tests/Parser/ParserTest.php:0