Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/plugin/google-api-php-client/vendor/paragonie/constant_time_encoding/tests/Base64Test.php:4 Stack trace: #0 {main} thrown in /var/www/html/plugin/google-api-php-client/vendor/paragonie/constant_time_encoding/tests/Base64Test.php on line 4