如何模拟在 class java Z587FEFE304B8E3505DE89580432C?DZ25C 中初始化的新 object

Question

How to mock for new object initialized in a method of a class? getting failure like "its failing like "Wanted but not invoked: invokeMyMethod() Actually, there were zero interactions with this mock. ....." i have followed an example "https://stackoverflow.com/questions/5920153/test-class-with-a-new-call-in-it-with-mockito". its not helping.

Class Login { //existing design. cannot change.

 private MyClass myclass; 

 public void init() {  
  myclass = new MyClass();
  myclass.invokeMyMethod();
 }

}

///Junit

@ExtendWith(MockitoExtension.class)
class LoginTest {

 @InjectMocks
 Login login;

 @Test
 void testInit() {

 Login spyObj = Mockito.spy(login);
 MyClass myclass = Mockito.mock(MyClass.class);
 spyObj.init();
 verify(myclass).invokeMyMethod();// its failing like "Wanted but not invoked: invokeMyMethod() Actually, 
                                  //there were zero interactions with this mock.
}

}

Answer 1

You need PowerMock together with Mockito. But sadly it doesn't run with JUnit5. If you can run your test with JUnit 4 the answer of this question gives you a point to start from.