message: Fix failed unit test after updated implementation
diff: @@ -623,6 +623,18 @@ TEST_F(ProtocolHandlerImplTest,
  const ::transport_manager::ConnectionUID connection_id2 = 0xBu;
  const uint8_t session_id2 = 2u;
  +#ifdef ENABLE_SECURITY
  + AddSecurityManager();
  +
  + EXPECT_CALL(session_observer_mock, KeyFromPair(connection_id2, session_id2))
  + .WillOnce(Return(connection_key));
  +
  + EXPECT_CALL(session_observer_mock,
  + GetSSLContext(connection_key, start_service))
  + .Times(2)
  + .WillRepeatedly(ReturnNull());
  +#endif // ENABLE_SECURITY
  +
  EXPECT_CALL(session_observer_mock, IsHeartBeatSupported(connection_id1, _))
  .WillRepeatedly(Return(false));
  EXPECT_CALL(session_observer_mock, IsHeartBeatSupported(connection_id2, _))
  