s.
 *
 *    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/platform/basic.h"


#include "mongo/db/repl/repl_set_heartbeat_response.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/assert_util.h"

namespace mongo {
namespace repl {
namespace {

using std::unique_ptr;

bool stringContains(const std::string& haystack, const std::string& needle) {
    return haystack.find(needle) != std::string::npos;
}

TEST(ReplSetHeartbeatResponse, DefaultConstructThenSlowlyBuildToFullObj) {
    int fieldsSet = 2;
    ReplSetHeartbeatResponse hbResponse;
    ReplSetHeartbeatResponse hbResponseObjRoundTripChecker;
    ASSERT_EQUALS(false, hbResponse.hasState());
    ASSERT_EQUALS(false, hbResponse.hasElectionTime());
    ASSERT_EQUALS(false, hbResponse.hasIsElectable());
    ASSERT_EQUALS(false, hbResponse.hasTime());
    ASSERT_EQUALS(false, hbResponse.hasDurableOpTime());
    ASSERT_EQUALS(false, hbResponse.hasAppliedOpTime());
    ASSERT_EQUALS(false, hbResponse.hasConfig());
    ASSERT_EQUALS(false, hbResponse.isMismatched());
    ASSERT_EQUALS(false, hbResponse.isReplSet());
    ASSERT_