STATUS.REMOVED means the Right tree did not have a node that the left tree had. (RIGHT_MISSING)
STATUS.ADDED means the Right tree had a node that the left tree did not have.(RIGHT_ADDED)
RestReplay comparse expected versus payload by walking the nodes (of JSON or XML) of the two trees of payloads.
The Left tree is the expected, from the test. The Right tree is the payload from the service.