春季启动控制器测试失败

Question

我有一个RestController，它只有一种用于HTTP GET的方法，并且没有输入参数。它调用了需要一些参数的服务方法。以下是控制器片段。

@RequestMapping(value = "/leagueResults", method = RequestMethod.GET)
public List<LeagueTableEntry> getResults(){
    List<LeagueTableEntry> leagueTableEntryList = new ArrayList<>();
    List<Match> listOfMatches = getListOfMatches();
    leagueTableEntryList = leagueService.getResults(listOfMatches);
    return leagueTableEntryList;
}

下面是我的ControlerTest类摘要

@RunWith(SpringRunner.class)
@WebMvcTest(LeagueController.class)
@WebAppConfiguration
public class LeagueControllerTest {
@Autowired
private MockMvc mvc;
@MockBean
private LeagueService leagueService ;
private List<LeagueTableEntry> leagueEntryList;
private List<Match> matchList;
@Before
public void setUp() throws Exception 
{
    MockitoAnnotations.initMocks(this);
    createSampleInputData();//This method populates the instance variable matchList
    getLeagueEntryOutput();//This method populates the instance variable leagueEntryList 
}
@Test
public void checkNoOfRecordsReturned()throws Exception {
    try{
        Mockito.when(leagueService.getResults(matchList)).thenReturn(leagueEntryList);
         mvc.perform(get("/leagueResults").contentType(MediaType.APPLICATION_JSON))
                  .andExpect(status().isOk())
                  .andExpect(jsonPath("$", hasSize(4)));
    }
    catch(Exception e){
        throw new Exception();
    }
}
private void getLeagueEntryOutput(){
    leagueEntryList = new ArrayList<>();
    leagueEntryList.add(new LeagueTableEntry());
    leagueEntryList.add(new LeagueTableEntry());
    leagueEntryList.add(new LeagueTableEntry());
    leagueEntryList.add(new LeagueTableEntry());
}

所以，在这里，我期望返回列表中的对象计数为4，但它的测试失败了。你能让我知道我想念什么。

Answer 1

我认为你可以写

Mockito.when(leagueService.getResults(matchList)).thenReturn(leagueEntryList);

写

Mockito.when(leagueService.getResults(Mockito.anyList())).thenReturn(leagueEntryList);

另外，如果这不起作用，我需要实现

List<Match> listOfMatches = getListOfMatches();