Testing a custom RepositoryRestController that uses a PersistentEntityResourceAssembler

Question

I have a RepositoryRestController that exposes resources for some persistent entities.

I have a method on my controller that takes a PersistentEnt

Answer 1

I ended up doing a slightly hacky solution here:

• I removed PersistentEntityResourceAssembler from the controller method.
• I added an @Autowired RepositoryEntityLinks to the controller, on which I call linkToSingleResource to create the links as needed.

• I added an @MockBean RepositoryEntityLinks to my test class, and configured the mocking to return something sensible:

  given(repositoryEntityLinks.linkToSingleResource(any(Identifiable.class)))
          .willAnswer(invocation -> {
              final Identifiable identifiable = (Identifiable) invocation.getArguments()[0];
              return new Link("/data/entity/" + identifiable.getId().toString());
          });
  

It's far from ideal - I'd love to know if there's a way of getting just enough of the data layer up that I can depend on PersistentEntityResourceAssembler.

Answer 2

I ended up for now with:

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc

The downsite of it is that the test would start the full Spring application context (but without the server).