Spring Boot version: 3.3.2
According to the javadoc on org.springframework.boot.test.autoconfigure.webservices.server.WebServiceServerTest annotation, it should configure the context in a way that webservice relevant beans are present - i.e. beans of type Endpoint and EndpointInterceptor.
During my testing I have noticed that the EndpointInterceptor types are absent from the application context during tests while using @WebServiceServerTest.
The current workaround is to import the configuration class where the EndpointInterceptor beans are defined.
You can find a minimal reproducible example code at https://github.com/Narkissus/WebServiceServerTest-issue-example