spring-projects
No handlers found in WebMvcTest for proxied RestController
Affected Version: 2.7.5
I created a @WebMvcTest for a controller that implements a generated interface from an openapi spec.
When one of the implemented handlers for example is annotated with @PreAuthorized, in case of a @WebMvcTest spring will create a JdkProxy, in the case when starting this application regularly it will create a cglib proxy.
Unfortunately spring will not detect any handlers in the case of a @WebMvcTest, as it can't find any annotations on the JdkProxy (RequestMappingHandlerMapping:isHandler(Class<?>)) and the test will fail with a 404.
I would expect that both cases will behave similar
https://github.com/raddatzk/spring-boot-33415
The ApplicationTest succeeds while PeopleControllerTest fails with 404
Thanks for the sample.
When you're using @SpringBootTest and, therefore, full auto-configuration, Spring Boot's default AOP configuration is used and this results in the use of class- rather than interface-based proxies. As a result, the annotations on PeopleController are found.
When you're using @WebMvcTest, AopAutoConfiguration isn't included and interface-based proxies are used instead. You can work around this by importing the auto-configuration in your test:
@WebMvcTest(PeopleController.class)
@Import(SecurityConfig.class)
@ImportAutoConfiguration(AopAutoConfiguration.class)
public class PeopleControllerTest {
I'd like to discuss the need for this with the rest of the team. Ideally, it wouldn't be needed but I am not sure that we should include AopAutoConfiguration in @WebMvcTest by default as it may have some side-effects that aren't wanted by those for whom things are working fine at the moment.
I've recently encountered this issue, and found this after some search.
It will be nice if this is being mentioned in the docs under @WebMvcTest portion
When looking at this, we may need to revisit PropertyPlaceholderAutoConfiguration as well as it should probably be available by default too.
