@RestController
@RequestMapping(value = Routes.SEND_FCM)
public class AdminFcmController {

private final FCMService fcmService;

@Autowired
public AdminFcmController(FCMService fcmService) {
    this.fcmService = fcmService;
}

@ResponseStatus(HttpStatus.CREATED)
@PostMapping(value = "/admin/logs/add")
public AdminFcmResource addBulkFcmLog(@RequestBody BulkFcmDataResource adminFcmResource) {
    return fcmService.addBulkFcmLog(adminFcmResource);
}
}

@RunWith(MockitoJUnitRunner.class)
public class AdminFcmControllerTest {

    protected MockMvc mockMvc;
    @InjectMocks
    AdminFcmController adminFcmController;

    @Mock
    FCMService fcmService;
    private JacksonTester<BulkFcmDataResource> bulkFcmDataResourceJacksonTester;

    @Before
    public void setUp() throws Exception {
        MockitoAnnotations.initMocks(this);
        mockMvc = MockMvcBuilders.standaloneSetup(adminFcmController)
                .build();
    }

    @Test
    public void addBulkFcmLog() throws Exception {
        JacksonTester.initFields(this, new ObjectMapper());

        AdminFcmResource adminFcmResource = AdminFcmResource.builder()
                .adminId(123L)
                .build();

        given(this.fcmService.addBulkFcmLog(any(BulkFcmDataResource.class))).willReturn(adminFcmResource);

         mockMvc.perform(
                post(Routes.SEND_FCM + "/admin/logs/add")
                        .accept(MediaType.APPLICATION_JSON)
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(bulkFcmDataResourceJacksonTester.write(BulkFcmDataResource.builder().adminId(123L).build()).getJson()))
                .andExpect(status().isCreated())
                .andDo(print());

   }