title: Add one additional bean to "@WebMvcTest"
body: <p>I have a controller and a test using @WebMvcTest and its running fine. Now i needed to add a little validation logic and for this i <code>@Autowired</code> an additional bean (a <code>@Component</code>, a MapstructMapper).</p>
  
  <p>As expected now the test is failing due to <code>@WebMvcTest</code>. (No components are discovered)</p>
  
  <p>Is there a way to add one bean to the context created?</p>
  
  <p>Since i am using <code>@MockBeans</code> to mock service layer: is there a way to delegate all mock calls to a real object? With this i could mock the mapper and delegate to real mapper?!</p>