测试用例失败：参数不同！通缉：

Question

我正在学习JUnit和mockito。我正在尝试从Account控制器类编写搜索过滤器的测试用例。但我得到Argument(s) are different! Wanted:失败。谁可以告诉我在测试用例中我做错了什么？

@RestController
@RequestMapping("/api.spacestudy.com/SpaceStudy/Admin")
public class AccountController {

    @Autowired
    AccountService accService;

    @GetMapping("/Account/findAccountData")
    public ResponseEntity<List<Tuple>> btnSearchClick(String sClientAcctId, String sAcctDesc, String sInvestigatorName,
            String sClientDeptId) throws Exception {
        return  ResponseEntity.ok(accService.btnSearchClick("1124100", sAcctDesc,sInvestigatorName,sClientDeptId));
}
}

测试用例

@RunWith(SpringRunner.class)
public class AccountControllerTest {

    private MockMvc mockMvc;

    @Mock
    private AccountService accountService;

    @InjectMocks
    private AccountController accountController;

    @Before
    public void setup() {
        mockMvc = MockMvcBuilders.standaloneSetup(accountController).build();
    }

    @Test
    public void btnSearchClickTest() throws Exception {

        String sClientAcctId = "1124100";
        String sAcctDesc = "SRIRAM";
        String sInvestigatorName = "Ram, Sri";
        String sClientDeptId = "120010";

        Tuple mockedTuple = Mockito.mock(Tuple.class);

        List<Tuple> accountObj = new ArrayList<>();
        accountObj.add(mockedTuple);

        Mockito.when(accountService.btnSearchClick(sClientAcctId, sAcctDesc, sInvestigatorName, sClientDeptId))
                .thenReturn(accountObj);

        mockMvc.perform(
                get("/api.spacestudy.com/SpaceStudy/Admin/Account/findAccountData").accept(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk());


        Mockito.verify(accountService).btnSearchClick(sClientAcctId, sAcctDesc, sInvestigatorName, sClientDeptId);

    }
}

堆栈跟踪

Argument(s) are different! Wanted:
accountService.btnSearchClick(
    "1124100",
    "SRIRAM",
    "Ram, Sri",
    "120010"
);
-> at com.spacestudy.controller.AccountControllerTest.btnSearchClickTest(AccountControllerTest.java:110)
Actual invocation has different arguments:
accountService.btnSearchClick(
    null,
    null,
    null,
    null
);
-> at com.spacestudy.controller.AccountController.btnSearchClick(AccountController.java:36)