Fatal error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/dev/spa/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Tests/Session/Attribute/NamespacedAttributeBagTest.php on line 22

Call Stack:
    0.0009     286632   1. {main}() /var/www/html/dev/spa/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Tests/Session/Attribute/NamespacedAttributeBagTest.php:0