[Form] Fixed FixRadioInputListener to not ignore 0.

src/Symfony/Component/Form/Extension/Core/EventListener/FixRadioInputListener.php

@@ -27,11 +27,11 @@ class FixRadioInputListener implements EventSubscriberInterface
     {
         $data = $event->getData();
 
-        $event->setData(empty($data) ? array() : array($data => true));
+        $event->setData(strlen($data) < 1 ? array() : array($data => true));
     }
 
     public static function getSubscribedEvents()
     {
         return array(FormEvents::BIND_CLIENT_DATA => 'onBindClientData');
     }
-}
+}

tests/Symfony/Tests/Component/Form/Extension/Core/EventListener/FixRadioInputListenerTest.php

@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Tests\Component\Form\Extension\Core\EventListener;
+
+use Symfony\Component\Form\Event\FilterDataEvent;
+use Symfony\Component\Form\Extension\Core\EventListener\FixRadioInputListener;
+
+class FixRadioInputListenerTest extends \PHPUnit_Framework_TestCase
+{
+    public function testFixRadio()
+    {
+        $data = '1';
+        $form = $this->getMock('Symfony\Tests\Component\Form\FormInterface');
+        $event = new FilterDataEvent($form, $data);
+
+        $filter = new FixRadioInputListener();
+        $filter->onBindClientData($event);
+
+        $this->assertEquals(array('1' => true), $event->getData());
+    }
+
+    public function testFixZero()
+    {
+        $data = '0';
+        $form = $this->getMock('Symfony\Tests\Component\Form\FormInterface');
+        $event = new FilterDataEvent($form, $data);
+
+        $filter = new FixRadioInputListener();
+        $filter->onBindClientData($event);
+
+        $this->assertEquals(array('0' => true), $event->getData());
+    }
+
+    public function testIgnoreEmptyString()
+    {
+        $data = '';
+        $form = $this->getMock('Symfony\Tests\Component\Form\FormInterface');
+        $event = new FilterDataEvent($form, $data);
+
+        $filter = new FixRadioInputListener();
+        $filter->onBindClientData($event);
+
+        $this->assertEquals(array(), $event->getData());
+    }
+}