diff --git a/README.md b/README.md
index 681ace4..03b6634 100644
--- a/README.md
+++ b/README.md
@@ -160,10 +160,16 @@ The option `disable-twb` can be passed to the element to disable rendering it in
 Checkbox helper can be called in a view with the view helper service `formCheckbox(\Zend\Form\Checkbox $oElement)` :
 
 ```php
-$this->formCheckbox(new \Zend\Form\Element\Checkbox());
+$this->formCheckbox(new \Zend\Form\Element\Checkbox('checkbox-input'));
+```
+This helper accepts a checkbox element as first param. As the input is rendered into a label element, the label position (append by default) can passed as an option
+
+```php
+$this->formCheckbox(new \Zend\Form\Element\Checkbox('checkbox-input',array(
+    'label' => 'Prepend label',
+    'label_options' => array('position' => \Zend\Form\View\Helper\FormRow::LABEL_PREPEND)
+)));
 ```
-This helper accepts a checkbox element as first param.
-The option `disable-twb` (boolean) can be passed to the element to disable rendering it in a `div` container.
 
 #### Form collection : `TwbBundle\Form\View\Helper\TwbBundleFormCollection`
 
@@ -264,6 +270,16 @@ $this->badge('badge message',array('class' => 'pull-right');
 This helper accepts a message as first param, and attributes for badge container as second param (optionnal).
 The class attribute "badge" is auto added to the badge container.
 
+#### Button group : `TwbBundle\View\Helper\TwbBundleButtonGroup`
+
+Button group helper can be called in a view with the view helper service `buttonGroup(array $aButtons = null, array $aButtonGroupOptions = null)` :
+
+```php
+$this->buttonGroup(array(new \Zend\Form\Element\Button('left', array('label' => 'Left'))),array('class' => 'pull-right');
+```
+This helper accepts an array of buttons as first param, and attributes for button group container as second param (optionnal).
+The buttons can be instance of `\Zend\Form\Element\Button` or array containing data to build an element with the `\Zend\Form\Factory`
+
 #### Glyphicon : `TwbBundle\View\Helper\TwbBundleGlyphicon`
 
 Glyphicon helper can be called in a view with the view helper service `glyphicon($sGlyphicon = null, array $aGlyphiconAttributes = null)` :
diff --git a/tests/TwbBundleTest/Form/View/Helper/TwbBundleFormCheckboxTest.php b/tests/TwbBundleTest/Form/View/Helper/TwbBundleFormCheckboxTest.php
index 0abc0b3..66430de 100644
--- a/tests/TwbBundleTest/Form/View/Helper/TwbBundleFormCheckboxTest.php
+++ b/tests/TwbBundleTest/Form/View/Helper/TwbBundleFormCheckboxTest.php
@@ -1,31 +1,42 @@
-<?php
-namespace TwbBundleTest\Form\View\Helper;
-class TwbBundleFormCheckboxTest extends \PHPUnit_Framework_TestCase{
-	/**
-	 * @var \TwbBundle\Form\View\Helper\TwbBundleFormCheckbox
-	 */
-	protected $formCheckboxHelper;
-
-	/**
-	 * @see \PHPUnit_Framework_TestCase::setUp()
-	 */
-	public function setUp(){
-		$oViewHelperPluginManager = \TwbBundleTest\Bootstrap::getServiceManager()->get('view_helper_manager');
-		$oRenderer = new \Zend\View\Renderer\PhpRenderer();
-		$this->formCheckboxHelper = $oViewHelperPluginManager->get('formCheckbox')->setView($oRenderer->setHelperPluginManager($oViewHelperPluginManager));
-	}
-
-	/**
-	 * @expectedException \InvalidArgumentException
-	 */
-	public function testRenderElementWithWrongElement(){
-		$this->formCheckboxHelper->render(new \Zend\Form\Element());
-	}
-
-	/**
-	 * @expectedException \LogicException
-	 */
-	public function testRenderElementWithEmptyName(){
-		$this->formCheckboxHelper->render(new \Zend\Form\Element\Checkbox(''));
-	}
-}
\ No newline at end of file
+<?php
+
+namespace TwbBundleTest\Form\View\Helper;
+
+class TwbBundleFormCheckboxTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var \TwbBundle\Form\View\Helper\TwbBundleFormCheckbox
+     */
+    protected $formCheckboxHelper;
+
+    /**
+     * @see \PHPUnit_Framework_TestCase::setUp()
+     */
+    public function setUp() {
+        $oViewHelperPluginManager = \TwbBundleTest\Bootstrap::getServiceManager()->get('view_helper_manager');
+        $oRenderer = new \Zend\View\Renderer\PhpRenderer();
+        $this->formCheckboxHelper = $oViewHelperPluginManager->get('formCheckbox')->setView($oRenderer->setHelperPluginManager($oViewHelperPluginManager));
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testRenderElementWithWrongElement() {
+        $this->formCheckboxHelper->render(new \Zend\Form\Element());
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    public function testRenderElementWithEmptyName() {
+        $this->formCheckboxHelper->render(new \Zend\Form\Element\Checkbox(''));
+    }
+
+    public function testRenderWithLabelPrepend() {
+        $this->assertEquals('<input type="hidden" name="prepend" value="0"><label>Prepend label <input type="checkbox" name="prepend" value="1"></label>', $this->formCheckboxHelper->render(new \Zend\Form\Element\Checkbox('prepend', array(
+                    'label' => 'Prepend label',
+                    'label_options' => array('position' => \Zend\Form\View\Helper\FormRow::LABEL_PREPEND)
+        ))));
+    }
+
+}