public function testSubmitValidData()
 {
     $formData = array('rating' => '5', 'messageText' => 'message text');
     $form = $this->factory->create(CommentType::class);
     $object = new Comment();
     $object->setRating(5);
     $object->setMessageText('message text');
     $form->submit($formData);
     $this->assertTrue($form->isSynchronized());
     $this->assertEquals($object, $form->getData());
     $view = $form->createView();
     $children = $view->children;
     foreach (array_keys($formData) as $key) {
         $this->assertArrayHasKey($key, $children);
     }
 }