spring 3 autowiring and junit testing

Question

My code:

@Component
public class A {
    @Autowired
    private B b;

    public void method() {}
}

public interface X {...}

@Component
public class B impl         


        

Answer 1

Here's an example of how I got my tests working with Spring 3.1, JUnit 4.7, and Mockito 1.9:

FooService.java

public class FooService {
    @Autowired private FooDAO fooDAO;
    public Foo find(Long id) {
        return fooDAO.findById(id);
    }
}

FooDAO.java

public class FooDAO {
    public Foo findById(Long id) {
        /* implementation */
    }
}

FooServiceTest.java

@RunWith(MockitoJUnitRunner.class)
public class FooServiceTest {
    @Mock private FooDAO mockFooDAO;
    @InjectMocks private FooService fooService = new FooService();

    @Test public final void findAll() {
        Foo foo = new Foo(1L);
        when(mockFooDAO.findById(foo.getId()).thenReturn(foo);

        Foo found = fooService.findById(foo.getId());
        assertEquals(foo, found);
    }
}