Spring @WebFluxTest is loading @Component s-CodePudding

I am trying to create a @WebFluxTest in spring to test my controllers.

@WebFluxTest(value = {MyController.class})
public class MyControllerTest {

    @MockBean
    private MyService service;

    @Autowired
    private WebTestClient webTestClient;

    @Test
    void testSomething() {
         ...
    }

However, when I execute the test, I get a lot of: org.springframework.beans.factory.NoSuchBeanDefinitionException for dependencies of @Component s. Meaning that, Spring is trying to find dependencies of @Component when it should ignore those. I understand that if I use @WebFluxTest, spring should not scan the classpath for any @Component.

My Application class is only annotated with @SpringBootApplication.

What could I be missing here?

SOLUTION UPDATE:

So, I know what was happening. Actually, the class that I had annotated with @Component was an implementation of a WebFilter, and if I check the filter configured for a WebFluxTest (WebFluxTypeExcludeFilter) it adds WebFilter to the include part. That is why Spring was picking it up.

CodePudding user response：

The error that you're getting could be exactly due to the annotation @WebFluxTest not loading your @Component classes. Could it be that your MyService is instantiating any object that has @Component? Maybe your MyController

Exemplifying, supposing your MyService is like that:

@Service
@AllArgsConstructor
public class MyService {
    private final MyRepository repository;

    private final Env env;

    public void insert(...) {
        System.out.println(env.getApplicationName()   " random stuff");
        ...
    }
}

And your Env is annotated with @Component, you will get the same error (NoSuchBeanDefinitionException) if you try to use any method from the Env class since it's null due to @MockBean in MyControllerTest. The same goes for MyController if it's instantiating any @Component object

If that is the case, then in your MyControllerTest you could try adding @Import(Env.class) or even trying to use when() from mockito with a .thenReturn()

If all that doesn't work, could you please provide more info about your error log and service/controller classes?

CodePudding user response：

So, I know what was happening. Actually, the class that I had annotated with @Component was an implementation of a WebFilter, and if I check the filter configured for a WebFluxTest (WebFluxTypeExcludeFilter) it adds WebFilter to the include part. That is why Spring was picking it up.