Java – unit testing: calling @PostConstruct after defining simulation behavior

I have two classes:

public MyService     
{
    @Autowired
    private MyDao myDao;     

    private List<Items> list; 

    @postconstruct
    private void init(){
         list = myDao.getItems(); 
    }
}

Now I want to involve myservice in the unit test, so I will imitate the behavior of mydao

XML：

<bean class = "com.package.MyService"> 
<bean  class="org.mockito.Mockito" factory-method="mock"> 
     <constructor-arg value="com.package.MyDao"/>
</bean>

<util:list id="responseItems" value-type="com.package.Item">
    <ref bean="item1"/>
    <ref bean="item2"/>
</util:list>

Unit test:

@ContextConfiguration("/test-context.xml")
@RunWith(SpringJUnit4ClassRunner.class)
public class MyServiceTest{

    @Autowired 
    MyService myService

    @Autowired 
    MyDao myDao;

    @Resource
    @Qualifier("responseItems")
    private List<Item> responseItems; 

    @Before
    public void setupTests() {
        reset(myDao); 
        when(myDao.getItems()).thenReturn(responseItems); 
    }

}

The problem with this is to create MyService bean, and call its @postconstruct bean. before defining the simulation behavior.

How do I define simulation behavior in XML or defer @ postconstruct after unit test setup?

Solution

My project has the same requirements I need to set a string using @ postconstructor. I don't want to run the spring context, in other words, I want a simple simulation My requirements are as follows:

public class MyService {

@Autowired
private SomeBean bean;

private String status;

@postconstruct
private void init() {
    status = someBean.getStatus();
}

}

Solution:

public class MyServicetest(){

@InjectMocks
private MyService target;

@Mock
private SomeBean mockBean;

@Before
public void setUp() throws NoSuchMethodException,InvocationTargetException,illegalaccessexception {

    MockitoAnnotations.initMocks(this);

    when(mockBean.getStatus()).thenReturn("http://test");

    //call post-constructor
    Method postconstruct =  MyService.class.getDeclaredMethod("init",null); // methodName,parameters
    postconstruct.setAccessible(true);
    postconstruct.invoke(target);
  }

}