onFindCommand([](const RemoteCommandRequest& request)
                      -> StatusWith<vector<BSONObj>> {
                          ASSERT_EQUALS(dummyHost, request.target);
                          ASSERT_EQUALS("config", request.dbname);

                          const auto& findCmd = request.cmdObj;
                          ASSERT_EQUALS("lockpings", findCmd["find"].str());
                          ASSERT_EQUALS(BSON("_id"
                                             << "test"),
                                        findCmd["filter"].Obj());
                          ASSERT_EQUALS(1, findCmd["limit"].numberLong());
                          checkReadConcern(findCmd);

                          BSONObj pingDoc(fromjson(R"({
            _id: "test",
            ping: { $date: "2015-05-26T13:06:27.293Z" }
        })"));

                          std::vector<BSONObj> result;
                          result.push_back(pingDoc);

                          return result;
                      });