I\'m using RestKit ~> 0.20.3 and RestKit/Testing ~> 0.20.3. So this is an example of my mapping:
RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[Pla
You're thinking about testing, and more specifically the scope of testing, wrongly. This is a unit test, and the unit is the mapping. The mapping deals with individual items and that is why your modified test works - because the scope is correct.
Response descriptors have a different scope. You can't test the scope of a response descriptor in a mapping test.