Question

To test our API that connects to the facebook graph API we use a mock server setup based on Jersey Test Framework and grizzly:

@Path("/" + PostRest.RESOURCE)
@Produces("application/json")
public class PostRest {

    public static final String RESOURCE = "111_222";

    @GET
    public Response getPost(@QueryParam("access_token") String access_token) {
        if (access_token != VALID_TOKEN) {
            return Response.status(400).entity(createErrorJson()).build();
        }
        return Response.status(200).entity(createSomeJsonString()).build();
    }

Now while I can react to an invalid or missing access_token with the correct error response, I also want to test that my API reacts correctly when trying to access an unkown resource at facebook ie an unkown path.

Right now I get a 404 from my grizzly obviously, if I try to access say “/111_2”, but facebook seems to catch that error and wrap it inside a Json response, containing the string “false” with status 200.

So… How do I set up the Test Framework to return

Response.status(200).entity("false").build();

every time it is called for an known path?

Basic example:

@ContextConfiguration({ "classpath:context-test.xml" })
@RunWith(SpringJUnit4ClassRunner.class)
public class SomeTest extends JerseyTest {

    @Inject
    private SomeConnection connection;

    private String unkownId = "something";


    public SomeTest() throws Exception {
        super("jsonp", "", "com.packagename.something");
    }


    @Test(expected = NotFoundException.class)
    public void testUnkownObjectResponse() throws NotFoundException {
        // here it should NOT result in a 404 but a JSON wrapped error response 
        // which will be handled by the Connection class and 
        // result in a custom exception 
        connection.getObject(unkownId);
    }

Or maybe I can set up grizzly to behave as desired..?!

Thanks!

Answer 1

Obviously facebook has it own service to intercept errors. Same thing should be done in your code. Just expose you own test service that intercepts all request

@Path("/test/errorTrap")
public class ErrorTrapService{
 ....
}

This service will produce any response you want. So any un-existing pages like http://mytest/test/errorTrap/111_2 will be intercepted by test service and produce expected response for you