[Form]fixed FormRenderer::humanize() to humanize camel cased label

src/Symfony/Component/Form/CHANGELOG.md

@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+
+2.3.0
+------
+
+ * changed FormRenderer::humanize() to humanize also camel cased field name
+
 2.2.0
 -----
 

src/Symfony/Component/Form/FormRenderer.php

@@ -280,6 +280,6 @@ public function searchAndRenderBlock(FormView $view, $blockNameSuffix, array $va
      */
     public function humanize($text)
     {
-        return ucfirst(trim(strtolower(preg_replace('/[_\s]+/', ' ', $text))));
+        return ucfirst(trim(strtolower(preg_replace(array('/([A-Z])/', '/[_\s]+/'), array('_$1', ' '), $text))));
     }
 }

src/Symfony/Component/Form/Tests/FormRendererTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Symfony\Component\Form\Test;
+
+class FormRendererTest extends \PHPUnit_Framework_TestCase
+{
+    public function testHumanize()
+    {
+        $renderer = $this->getMockBuilder('Symfony\Component\Form\FormRenderer')
+            ->setMethods(null)
+            ->disableOriginalConstructor()
+            ->getMock()
+        ;
+
+        $this->assertEquals('Is active', $renderer->humanize('is_active'));
+        $this->assertEquals('Is active', $renderer->humanize('isActive'));
+    }
+}