Spring JUnit testing with @Autowired annotation

junitspringunit testing

I´m having issues with my test cases after having introduced @Autowired in one of the classes under test.

My testcase now looks like this:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"/applicationContext.xml", "/spring-security.xml"})
public class StudentRepositoryTest extends AbstractDatabaseTestCase {

private StudentRepository studentRepository;
private CompanyRepository companyRepository;
private Student testStudent;
private Company testCompany;

@Before
public void setUp() {
    studentRepository = new StudentRepository();
    studentRepository.setJdbcTemplate(getJdbcTemplate());
    testStudent = Utils.testStudentNoApplication();
}
@Test
....

}

StudentRepository now looks like this:

@Service
public class StudentRepository extends AbstractRepository<Student> {

...

private PasswordEncoder passwordEncoder;
private MailService mailService;

public StudentRepository() {
    // TODO Auto-generated constructor stub
}

@Autowired 
public StudentRepository(MailService mailService, PasswordEncoder passwordEncoder) {
    this.mailService = mailService;
    this.passwordEncoder = passwordEncoder;
}

Obviously this test case won´t work anymore.
But what changes do I need to make to the testcase for the @Autowired annotation to be picked up by the test case?

EDIT:

I´ve now updated my setUp() to this (I need the password encoder to avoid null password):

@Before
public void setUp() {
    //studentRepository = new StudentRepository();
    studentRepository = new StudentRepository(mock(MailService.class), ctx.getAutowireCapableBeanFactory().createBean(ShaPasswordEncoder.class));
    studentRepository.setJdbcTemplate(getJdbcTemplate());
    testStudent = Utils.testStudentNoApplication();
}

My testcase is now running OK, but my testsuite failes with a NullPointerException.
I´m guessing the ApplicationContext is not being Autowired when running the testsuite for some reason?

Best Answer

If you don't want to declare your StudentRepository in one of XML files referenced by @ContextConfiguration and autowire it into the test, you can try to use AutowireCapableBeanFactory as follows:

...
public class StudentRepositoryTest extends AbstractDatabaseTestCase {
    ...
    @Autowired ApplicationContext ctx;

    @Before
    public void setUp() {
        studentRepository = ctx.getAutowireCapableBeanFactory()
                               .createBean(StudentRepository.class);
        ...
    }
    ...
}
Related Topic