使用Mockito進行單元測試彈簧靴控制器

Question

我有以下控制器：

@RestController
@RequestMapping("cats")
public class CatController {
    private IDatabaseCatDao databaseCatService;
    private DataValidator catDataValidator;

    public CatController(IDatabaseCatDao databaseCatService, DataValidator catDataValidator) {
        this.databaseCatService = databaseCatService;
        this.catDataValidator = catDataValidator;
    }

    @PostMapping
    public ResponseEntity addCat(@RequestBody Cat cat) {
        catDataValidator.validateCatAdding(cat, cats);
        databaseCatService.addCat(cat);
        URI location = ServletUriComponentsBuilder.fromCurrentRequest().buildAndExpand(cat.getName()).toUri();
        return ResponseEntity.created(location).build();
    }
}    

catDataValidator-檢查數據是否正確
databaseCatService-插入數據庫+本地緩存

我需要使用jUnit和Mockito對其進行測試。

我的測試課如下：

@RunWith(SpringRunner.class)
@WebMvcTest(value = CatController.class, secure = false)
public class CatControllerTest {
    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private IDatabaseCatDao databaseCatService;

    private String catExampleJson = "..some json file..";

   public void addCat() throws Exception {
        Mockito.doNothing().when(databaseCatService).addCat(Mockito.any(Cat.class));
        RequestBuilder requestBuilder = MockMvcRequestBuilders
                .post("/cats")
                .accept(MediaType.APPLICATION_JSON).content(catExampleJson)
                .contentType(MediaType.APPLICATION_JSON);
        MvcResult result = mockMvc.perform(requestBuilder).andReturn();
        MockHttpServletResponse response = result.getResponse();
        assertEquals(HttpStatus.CREATED.value(), response.getStatus());
    }
}

Mockito.doNothing（）因為服務addCat（）是void方法。
驗證我最好單獨進行測試
貓咪地圖我不在這里用

java.lang.Exception：沒有可運行的方法

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.<init>(SpringJUnit4ClassRunner.java:137)
    at org.springframework.test.context.junit4.SpringRunner.<init>(SpringRunner.java:49)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
    at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:36)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:49)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

我有以下依賴項進行測試 ：

彈簧引導啟動測試

Answer 1

您需要使用@Test注釋測試方法，SpringRunner才能找到它。 即：

@Test
public void addCat() throws Exception {