java模拟递归类

Question

使用Spring 2.0.3。发布版，JUnit Jupiter 5.7.0，Mockito 3.3.3

尝试测试Class01的方法method01：

public class Class01 {

 private RestConnector con;
 
 public Class01(){
  con = RestConnector.getInstance();
 }

 public Response method01(String x) {
  Class01 example = new Class01();
  String x = example.isAuthenticated();
  
  // more stuff after this
  
 }
 
 public String isAuthenticated() throws IOException {
  // I do stuff
  return "a string";
 }

}  

在测试课上，我试过

public class Class01Test{

 @Mock private Class01 class01Mock;
 
 @Spy @InjectMocks private Class01 class01;

 @Test
 public void test() throws Throwable {
  
  doReturn("I returned").when(class01).  ??? stuck here .. always goes into the isAuthenticated method
  Response result = class01.method01("a string");
 }

}

目前测试总是在运行，真正的方法是经过验证的。 如何为method01中的字段示例设置一个模拟，以使进入方法的执行跳过得到验证

Answer 1

try to test method method01 of class Class01

那你就不需要嘲笑了

 @Test
 public void test() throws Throwable {
  Class01 c = new Class01();

  Response expected = ... ;
  assertEquals(c.method01("input"), expected);
 }

如果要将行为注入example变量，需要将其移动到字段中

public class Class01 {

 private RestConnector con;
 private Class01 inner;
 
 public Class01(){
  con = RestConnector.getInstance();
 }

 Class01(Class01 c) {
   this();
   this.inner = c;
 }

 public Response method01(String x) {
  String x = inner.isAuthenticated();
  
  // more stuff after this
  
 }

还有一个模拟的

@RunWith(MockitoJunitRunner.class)
public class Class01Test{

 @Mock Class01 class01Mock;

 @Test
 public void test() throws Throwable {
  Response expected = ... ;
  when(class01Mock.isAuthenticated()).thenReture(expected); ... // TODO: Setup  
 
  Class01 c = new Class01(class01Mock); // pass in the mock
  
  assertEquals(c.method01("input"), expected);
 }

然而，，不清楚当你看起来只需要this.isAuthenticated()时，为什么你需要同一类的嵌套对象

理想情况下，您还可以模拟RestConnector