Cosmetics for #26

README.md

@@ -44,7 +44,8 @@ $app->add(new \Slim\Middleware\Session([
   PHP's `PHPSESSID`).
 * **`autorefresh`**: `true` if you want session to be refresh when user activity
   is made (interaction with server).
-* `handler`: Class name of the handler which **MUST** be an implementation for ```SessionHandlerInterface```.
+* `handler`: Custom session handler class or object. Must implement
+  `SessionHandlerInterface` as required by PHP.
 
 
 ## Session helper

src/Slim/Middleware/Session.php

@@ -80,7 +80,6 @@ protected function startSession()
     {
         $settings = $this->settings;
         $name = $settings['name'];
-        $handler = new $settings['handler'];
 
         session_set_cookie_params(
             $settings['lifetime'],
@@ -109,7 +108,15 @@ protected function startSession()
         }
 
         session_name($name);
-        session_set_save_handler($handler, true);        
+
+        $handler = $settings['handler'];
+        if ($handler) {
+            if (!($handler instanceof SessionHandlerInterface)) {
+                $handler = new $handler;
+            }
+            session_set_save_handler($handler, true);
+        }
+
         session_cache_limiter(false);
         if ($inactive) {
             session_start();

tests/HelperTest.php

@@ -1,11 +1,10 @@
 <?php
-namespace Tests;
 
 use SlimSession\Helper;
 
 session_start();
 
-class HelperTest extends \PHPUnit_Framework_TestCase
+class HelperTest extends PHPUnit_Framework_TestCase
 {
     protected function setUp()
     {
@@ -153,7 +152,7 @@ public function testIterator()
 
         $_SESSION = ['a' => 'A', 'b' => 'B', 'c' => 'C'];
 
-        $this->assertInstanceOf(\Iterator::class, $helper->getIterator());
+        $this->assertInstanceOf(Iterator::class, $helper->getIterator());
         $this->assertSame($_SESSION, iterator_to_array($helper->getIterator()));
     }
 }