junit | autowired components in main is null

Question

I have a class defined in src/main/java:

Class A{
    @Autowired 
    B b; 
    public void method1() {}
}

The corresponding test class is:

Class ATest {
    A a; 
    @Test
    public void method1Test() {}
}

B is null when ATest is unit tested. (run as junit test).

I only have spring-context library, and not spring boot application. Further, I have defined @ComponentScan(basePackage="com") and class A is inside of the same package.

Please let me know how to unit test in this scenario.

Did my answer helped? Do you need more info? – Ori Marko Mar 04 '19 at 06:47 — Ori Marko, Mar 04 '19 at 06:47

score 1 · Answer 1 · answered Feb 28 '19 at 15:26

1

For Spring dependencies I add to test class @Spy and @Autowired:

@Spy
@Autowired
private B b;

B will be available when testing A

answered Feb 28 '19 at 15:26

Ori Marko

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score 0 · Answer 2 · answered Mar 01 '19 at 09:54

0

Why do you define classes that are not unit tests in resource directory?

answered Mar 01 '19 at 09:54

Andre Sianipar

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sorry, it is src/main/java not resources – Guru Mar 01 '19 at 09:57

score 0 · Answer 3 · edited Apr 14 '19 at 07:31

0

Mockito provides option to create spy on real objects. When spy is called, then actual method of real object is called.

@RunWith(MockitoJUnitRunner.class)
Class ATest {

    @Syp
    B b;

    @Test
    public void method1Test() {}
}

edited Apr 14 '19 at 07:31

Kim

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answered Apr 14 '19 at 04:23

Gopal Singhania

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junit | autowired components in main is null

3 Answers3