Fixed exception if module content is empty

core/lib/Thelia/Core/Template/Smarty/Plugins/Module.php

@@ -53,7 +53,11 @@ class Module extends AbstractSmartyPlugin
                 }
             }
         }
-        return $template->fetch(sprintf("string:%s", $content));
+
+        if (! empty($content))
+            return $template->fetch(sprintf("string:%s", $content));
+
+        return "";
     }
 
     /**

core/lib/Thelia/Tests/Core/Template/Smarty/Plugins/FormatTest.php

@@ -155,6 +155,7 @@ class FormatTest extends \PHPUnit_Framework_TestCase
      * test formatDate without mandatory parameters
      *
      * @covers ::formatDate
+     * @expectedException Thelia\Core\Template\Smarty\Exception\SmartyPluginException
      */
     public function testFormatDateWithoutDate()
     {