Warning: require_once(PHPUnit.php) [function.require-once]: failed to open stream: No such file or directory in /home/tapout/www/Smarty/unit_test/test_cases.php on line 5

Fatal error: require_once() [function.require]: Failed opening required 'PHPUnit.php' (include_path='.:/usr/local/lib/php:/usr/local/apache/phplib:/home/tapout/www/Smarty') in /home/tapout/www/Smarty/unit_test/test_cases.php on line 5