@Test
    public void loadWorkers() throws Exception {

        Mockito.when(workerRepository.findAll()).thenReturn(Collections.emptyList());
        MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get("/workers/all").accept(MediaType.APPLICATION_JSON)).andReturn();
        System.out.println(mvcResult.getResponse());
        Mockito.verify(workerRepository).findAll();
    }