diff --git a/src/Bundle/ChillDocGeneratorBundle/Controller/DocGeneratorTemplateController.php b/src/Bundle/ChillDocGeneratorBundle/Controller/DocGeneratorTemplateController.php
index 000fcb03a..8913951e6 100644
--- a/src/Bundle/ChillDocGeneratorBundle/Controller/DocGeneratorTemplateController.php
+++ b/src/Bundle/ChillDocGeneratorBundle/Controller/DocGeneratorTemplateController.php
@@ -28,6 +28,7 @@ use GuzzleHttp\Client;
 use GuzzleHttp\Exception\TransferException;
 use Psr\Log\LoggerInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
 use Symfony\Component\Form\Extension\Core\Type\FileType;
 use Symfony\Component\HttpFoundation\File\File;
 use Symfony\Component\HttpFoundation\RedirectResponse;
@@ -211,14 +212,14 @@ final class DocGeneratorTemplateController extends AbstractController
                 $builder = $this->createFormBuilder(
                     array_merge(
                         $context->getFormData($template, $entity),
-                        $isTest ? ['test_file' => null] : []
+                        $isTest ? ['test_file' => null, 'show_data' => false] : []
                     )
                 );
 
                 $context->buildPublicForm($builder, $template, $entity);
             } else {
                 $builder = $this->createFormBuilder(
-                    ['test_file' => null]
+                    ['test_file' => null, 'show_data' => false]
                 );
             }
 
@@ -227,6 +228,10 @@ final class DocGeneratorTemplateController extends AbstractController
                     'label' => 'Template file',
                     'required' => false,
                 ]);
+                $builder->add('show_data', CheckboxType::class, [
+                    'label' => 'Show data instead of generating',
+                    'required' => false,
+                ]);
             }
 
             $form = $builder->getForm()->handleRequest($request);
@@ -278,6 +283,11 @@ final class DocGeneratorTemplateController extends AbstractController
         }
         $datas = $context->getData($template, $entity, $contextGenerationData);
 
+        if ($isTest && $form['show_data']->getData()) {
+            // very ugly hack...
+            dd($datas);
+        }
+
         try {
             $generatedResource = $this->driver->generateFromResource($templateResource, $template->getFile()->getType(), $datas, $template->getFile()->getFilename());
         } catch (TemplateException $e) {