modified DB connection settings

tests/model/MySQLiDriverTest.php

@@ -89,8 +89,8 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'nodb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $this->conf['database'] = 'nodb';
+        $driver = new MySQLiDriver($this->conf);
         $this->assertNull('mysqli', $driver->getConnection());
     }