text: /**
   *    Copyright (C) 2015 MongoDB Inc.
   *
   *    This program is free software: you can redistribute it and/or  modify
   *    it under the terms of the GNU Affero General Public License, version 3,
   *    as published by the Free Software Foundation.
   *
   *    This program is distributed in the hope that it will be useful,
   *    but WITHOUT ANY WARRANTY; without even the implied warranty of
   *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *    GNU Affero General Public License for more details.
   *
   *    You should have received a copy of the GNU Affero General Public License
   *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   *
   *    As a special exception, the copyright holders give permission to link the
   *    code of portions of this program with the OpenSSL library under certain
   *    conditions as described in each individual source file and distribute
   *    linked combinations including the program with the OpenSSL library. You
   *    must comply with the GNU Affero General Public License in all respects for
   *    all of the code used other than as permitted herein. If you modify file(s)
   *    with this exception, you may extend this exception to your version of the
   *    file(s), but you are not obligated to do so. If you do not wish to do so,
   *    delete this exception statement from your version. If you delete this
   *    exception statement from all source files in the program, then also delete
   *    it in the license file.
   */
  
  #include "mongo/db/jsobj.h"
  #include "mongo/rpc/metadata/repl_set_metadata.h"
  #include "mongo/unittest/unittest.h"
  
  namespace mongo {
  namespace rpc {
  namespace {
  
  using repl::OpTime;
  
  TEST(ReplResponseMetadataTest, Roundtrip) {
      OpTime opTime(Timestamp(1234, 100), 5);
      OpTime opTime2(Timestamp(7777, 100), 6);
      ReplSetMetadata metadata(3, opTime, opTime2, 6, 12);
  
      ASSERT_EQ(opTime, metadata.getLastOpCommitted());
      ASSERT_EQ(opTime2, metadata.getLastOpVisible());
  
      BSONObjBuilder builder;
      metadata.writeToMetadata(&builder);
  
      BSONObj expectedObj(
          BSON(kReplSetMetadataFieldName
               << BSON("term" << 3 << "lastOpCommitted"
                              << BSON("ts" << opTime.getTimestamp() << "term" << opTime.getTerm())
                              << "lastOpVisible"
                              << BSON("ts" << opTime2.getTimestamp() << "term" << opTime2.getTerm())
                              << "configVersion" << 6 << "primaryIndex" << 12)));
  
      BSONObj serializedObj = builder.obj();
      ASSERT_EQ(expectedObj, serializedObj);
  
      auto cloneStatus = ReplSetMetadata::readFromMetadata(serializedObj);
      ASSERT_OK(cloneStatus.getStatus());
  
      const auto& clonedMetadata = cloneStatus.getValue();
      ASSERT_EQ(opTime, clonedMetadata.getLastOpCommitted());
      ASSERT_EQ(opTime2, clonedMetadata.getLastOpVisible());
  
      BSONObjBuilder clonedBuilder;
      clonedMetadata.writeToMetadata(&clonedBuilder);
  
      BSONObj clonedSerializedObj = clonedBuilder.obj();
      ASSERT_EQ(expectedObj, clonedSerializedObj);
  }
  
  }  // unnamed namespace
  }  // namespace rpc
  }  // namespace mongo
  