@Test
  public void modifyForm() {
    ModifyFormDTO dto = new ModifyFormDTO();
    dto.setName("new name");

    formService.modifyForm(1L, dto, "user");

    ArgumentCaptor<Form> argument = ArgumentCaptor.forClass(Form.class);
    verify(mockFormDao).update(argument.capture());

    assertEquals("new name", argument.getValue().getName());
  }