Map<String, Service> services = new HashMap<String, Service>();
final SudokuResponse sudokuResponse = SudokuResponse.newBuilder()
.setSolved(true)
.setCheckerboard("98765")
.build();
Interface mockImpl = new Interface() {
@Override
public void solve(RpcController controller, SudokuRequest request,
RpcCallback<SudokuResponse> done) {
gotRequest = request;