Java when()需要的参数必须是';模拟';
我在Spring中为我的控制器类编写JUnit测试用例。因为我得到一个MissingMethodInvocationException,它说when()需要一个参数,该参数必须是“对模拟的方法调用”,同时在when()中调用WebTarget的模拟对象。然后是方法 这是密码Java when()需要的参数必须是';模拟';,java,spring,unit-testing,Java,Spring,Unit Testing,我在Spring中为我的控制器类编写JUnit测试用例。因为我得到一个MissingMethodInvocationException,它说when()需要一个参数,该参数必须是“对模拟的方法调用”,同时在when()中调用WebTarget的模拟对象。然后是方法 这是密码 @Controller public class JobController { WebTarget target = null; ClientConfig config = new Clie
@Controller
public class JobController {
WebTarget target = null;
ClientConfig config = new ClientConfig();
Client client = ClientBuilder.newClient(config);`
List<ScheduleJob> scheduleJobsList = new ArrayList<ScheduleJob>();
@RequestMapping(value = "displayScheduledJobs")
public ModelAndView displayScheduledJobs(@ModelAttribute(value = "Server") Server server) throws JAXBException {
List<Server> serverList = serverService.getJobServerList(user.getAccountId());
target = client.target(getBaseURI(server));
String xml = target.path("rest").path("getScheduledJobs").request().accept(MediaType.APPLICATION_XML).get(String.class);
if (xml.contains("<scheduleJob>") && xml.contains("</scheduleJob>")){
//some code
}
model.addObject("scheduleJobsList", scheduleJobsList);
return model;
}
private static URI getBaseURI(Server server) {
if(server.getSecureFlag().equalsIgnoreCase("N")){
return UriBuilder.fromUri("http://"+server.getServerIp()+":"+server.getServerPort()+"/jobserver").build();
} else {
return UriBuilder.fromUri("https://"+server.getServerIp()+":"+server.getServerPort()+"/jobserver").build();
}
}
}
由于代码中的以下行,您将收到错误:
client = ClientBuilder.newClient(config);
编写此语句时,它将用新客户端替换上面创建的客户端的mock对象,因此,client
将不再被Mockito识别为mock
另外,我希望您正在创建builder
的模拟,就像您在执行when(builder.accept(MediaType.APPLICATION_XML)),然后返回(builder)代码>
此外,我看不到任何@injectmock
语句。您必须创建您正在测试的类的对象,并使用@InjectMocks
注释对其进行注释
此外,您还必须通过执行MockitoAnnotations.initMocks(this)来初始化mock在testdisplayScheduledJobs()方法中的code>
下面是一个示例代码片段,它将为您提供更多的见解:
public class Foo {
@Mock
private JerseyWebTarget target;
@Mock
private Builder requestBuilder;
@Mock
private Response serviceResponse;
@InjectMocks
private Foo foo = new Foo();
@Rule
public ExpectedException thrown = ExpectedException.none();
@Before
public void init() {
MockitoAnnotations.initMocks(this);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.request(MediaType.APPLICATION_JSON_TYPE)).thenReturn(
requestBuilder);
}
@Test
public void testGetData() {
List<String> responseList = new ArrayList<>();
responseList.add("foobar");
Mockito.when(requestBuilder.get(Matchers.eq(Response.class))).thenReturn(serviceResponse);
Mockito.when(serviceResponse.getStatus()).thenReturn(200);
Mockito.when(serviceResponse.readEntity(Matchers.any(GenericType.class))).thenReturn(
responseList);
List<String> resultList = foo.getData("foo", "bar");
Mockito.verify(requestBuilder, Mockito.times(1)).get(Matchers.eq(Response.class));
Mockito.verify(serviceResponse, Mockito.times(1)).getStatus();
Mockito.verify(serviceResponse, Mockito.times(1)).readEntity(
Matchers.any(GenericType.class));
assertNotNull(resultList);
assertEquals(1, resultList.size());
assertEquals("true", resultList.get(0).getConfigSetValue());
}
}
公共类Foo{
@嘲弄
私人JerseyWebTarget;
@嘲弄
私人建筑商;
@嘲弄
私人响应服务响应;
@注射模拟
私有Foo-Foo=新Foo();
@统治
抛出公共ExpectedException=ExpectedException.none();
@以前
公共void init(){
initMocks(this);
Mockito.when(target.queryParam(Matchers.anyString(),Matchers.anyString())
.然后返回(目标);
Mockito.when(target.queryParam(Matchers.anyString(),Matchers.anyString())
.然后返回(目标);
Mockito.when(target.queryParam(Matchers.anyString(),Matchers.anyString())
.然后返回(目标);
Mockito.when(target.queryParam(Matchers.anyString(),Matchers.anyString())
.然后返回(目标);
Mockito.when(target.request(MediaType.APPLICATION\u JSON\u TYPE))。然后返回(
请求生成器);
}
@试验
public void testGetData(){
List responseList=new ArrayList();
响应列表。添加(“foobar”);
Mockito.when(requestBuilder.get(Matchers.eq(Response.class)).thenReturn(serviceResponse);
Mockito.when(serviceResponse.getStatus())。然后返回(200);
Mockito.when(serviceResponse.readEntity(Matchers.any(GenericType.class))。然后返回(
回应者);
List resultList=foo.getData(“foo”,“bar”);
验证(requestBuilder,Mockito.times(1)).get(Matchers.eq(Response.class));
验证(serviceResponse,Mockito.times(1)).getStatus();
验证(serviceResponse,Mockito.times(1)).readEntity(
Matchers.any(GenericType.class));
assertNotNull(结果列表);
assertEquals(1,resultList.size());
assertEquals(“true”,resultList.get(0.getConfigSetValue());
}
}
您在哪里定义了服务器服务的模拟?另外,您不能这样做:when(target.path(“rest”).path(“getScheduledJobs”).request().accept(MediaType.APPLICATION_XML).get(String.class)).thenReturn(XML)代码>。您必须创建五个单独的模拟,例如when(target.path(“rest”))。然后返回(target)代码>,何时(target.path(“getScheduledJobs”)。然后返回(target)代码>,何时(target.request())。然后返回(…)链中每个方法的代码>等等。你能附加错误堆栈吗?是的,我忘了在代码@Mock private ServerService;我也按照你的建议试过了,但是运气不好!当(target.path(“rest”))。然后返回(target);when(target.path(“getScheduledJobs”))。然后返回(target);when(target.request()).thenReturn(builder);当(builder.accept(MediaType.APPLICATION_XML)),然后返回(builder);when(builder.get(String.class)).thenReturn(xml);您现在遇到的错误是什么?请将错误堆栈附加到您的问题上好吗?org.mockito.exceptions.misusing.MissingMethodInvocationException:when()需要的参数必须是“模拟的方法调用”。例如:when(mock.getArticles()).thenReturn(articles);此外,出现此错误的原因可能是:1。您可以存根:final/private/equals()/hashCode()方法。这些方法无法存根/验证。2.在when()中,您不在mock上调用方法,而是在其他对象上调用方法。
client = ClientBuilder.newClient(config);
public class Foo {
@Mock
private JerseyWebTarget target;
@Mock
private Builder requestBuilder;
@Mock
private Response serviceResponse;
@InjectMocks
private Foo foo = new Foo();
@Rule
public ExpectedException thrown = ExpectedException.none();
@Before
public void init() {
MockitoAnnotations.initMocks(this);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.queryParam(Matchers.anyString(), Matchers.anyString()))
.thenReturn(target);
Mockito.when(target.request(MediaType.APPLICATION_JSON_TYPE)).thenReturn(
requestBuilder);
}
@Test
public void testGetData() {
List<String> responseList = new ArrayList<>();
responseList.add("foobar");
Mockito.when(requestBuilder.get(Matchers.eq(Response.class))).thenReturn(serviceResponse);
Mockito.when(serviceResponse.getStatus()).thenReturn(200);
Mockito.when(serviceResponse.readEntity(Matchers.any(GenericType.class))).thenReturn(
responseList);
List<String> resultList = foo.getData("foo", "bar");
Mockito.verify(requestBuilder, Mockito.times(1)).get(Matchers.eq(Response.class));
Mockito.verify(serviceResponse, Mockito.times(1)).getStatus();
Mockito.verify(serviceResponse, Mockito.times(1)).readEntity(
Matchers.any(GenericType.class));
assertNotNull(resultList);
assertEquals(1, resultList.size());
assertEquals("true", resultList.get(0).getConfigSetValue());
}
}