How can I use JUnit with Spring for testing?

How can I use JUnit with Spring for testing?

You can use JUnit alongside Spring by integrating the Spring Test framework. This allows you to write unit tests for your Spring components.

What annotations do I need to use with JUnit in Spring?

You typically use @RunWith(SpringJUnit4ClassRunner.class) to run your tests with Spring's testing support, and @ContextConfiguration to specify the configuration.

Can you give me an example of a simple test case?

Sure! Here's a basic example:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {AppConfig.class})
public class MyServiceTest {

    @Autowired
    private MyService myService;

    @Test
    public void testServiceMethod() {
        assertEquals(expectedValue, myService.serviceMethod());
    }
}

How do I mock dependencies in my tests?

You can use Mockito to mock dependencies. Just annotate your mock with @Mock and initialize it with MockitoAnnotations.initMocks(this); in your setup method.