@Mock object instance is null

Question

@Mock object instance is null .

I am doing this is my test class

@Mock
private SchoolRequest schoolRequest;

@InjectMock
private FormRequest formRequest;

@Before
public void init(){
     MockitoAnnotations.initMocks(this);
}

Class FormRequest {

@Autowired 
private SchoolRequest schoolRequest;


}

This application is running properly, but in test cases schoolRequest is coming as null. Any pointer on why it might happen ?

Can you provide a sample code which reproduces your problem? — Maciej Dobrowolski
– Maciej Dobrowolski, Commented May 2, 2017 at 10:00
Where are your test methods located? Are they in the same class as init()? Perhaps put a breakpoint on the initMocks() call and run one of your tests in debug to see if it's called. — david a.
– david a., Commented May 2, 2017 at 14:19

HOSHIYAR · Accepted Answer · 2017-05-02 10:27:36Z

7

I think you are missing @RunWith annotation on class level. Whenever you want to use the @Mock annotation you should use the MockitoJUnitRunner.

@RunWith(MockitoJUnitRunner.class)
public class MockitoTest {
@Mock
private SchoolRequest schoolRequest;

@InjectMock
private FormRequest formRequest;

@Before
public void init(){
     MockitoAnnotations.initMocks(this);
}
}

I hope this should work for you..

answered May 2, 2017 at 10:27

HOSHIYAR

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1 Comment

saurabh agarwal Over a year ago

It's one of the option. stackoverflow.com/questions/29590621/…

saurabh agarwal · Accepted Answer · 2017-05-02 14:14:53Z

6

I don't know the reason but this worked.

private SchoolRequest schoolRequest = Mockito.mock(SchoolRequest.class);

May be someone can comment why this worked. What is difference between @Mock and Mockito.mock . I thought they are same.

answered May 2, 2017 at 14:14

saurabh agarwal

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1 Comment

Abhinav Manthri Over a year ago

In order to mock objects using annotation, you should use @org.junit.jupiter.api.Test for your test methods with junit5

Shubham Jain · Accepted Answer · 2024-08-27 09:10:12Z

1

Using ExtendWith has resolved my issue

@ExtendWith(MockitoExtension.class)
class PageTest {

  @Mock
  MyClass myclass;
}

Use below dependency for same

<dependency>
  <groupId>org.mockito</groupId>
  <artifactId>mockito-junit-jupiter</artifactId>
  <version>{LATEST_VERSION}</version>
</dependency>

answered Aug 27, 2024 at 9:10

Shubham Jain

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