Some micro-optimizations
diff --git a/tests/codeigniter/database/DB_driver_test.php b/tests/codeigniter/database/DB_driver_test.php
index 9e16e29..1f48ca9 100644
--- a/tests/codeigniter/database/DB_driver_test.php
+++ b/tests/codeigniter/database/DB_driver_test.php
@@ -5,7 +5,7 @@
public function test_initialize()
{
$config = Mock_Database_DB::config(DB_DRIVER);
- $driver_name = current(explode('/', DB_DRIVER));
+ sscanf(DB_DRIVER, '%[^/]/', $driver_name);
$driver = $this->$driver_name($config[DB_DRIVER]);
$this->assertTrue($driver->initialize());