// recherche de la story dans la repository
mockStoryRepository.expectFindByPersistanceId(persistanceId, storyToUpdate);
Errors errors = AgilePlanningObjectFactory.getErrors();
errors.reject("erreur");
mockTaskValidator.expectValidate(new Ignore(), errors);
Errors errorsFromService = storyService.updateTask(1,2,"scooby", 3, 1, 3);