MT5 Strategy Tester doesn't work in News Calendar

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struct economicNews
  {
   MqlCalendarEvent  event;
   MqlCalendarValue  value;
   MqlCalendarCountry country;
  };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void createEconomicNews(MqlCalendarEvent &event, MqlCalendarValue &value, MqlCalendarCountry &country, economicNews &news)
  {
   news.value = value;
   news.event = event;
   news.country = country;
  }
//+------------------------------------------------------------------+


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
string newsToString(economicNews &news)
  {

   string strNews = "";
   strNews += ((string) news.event.id + ";");
   strNews += ((string) news.event.type + ";");
   strNews += ((string) news.event.sector + ";");
   strNews += ((string) news.event.frequency + ";");
   strNews += ((string) news.event.time_mode + ";");
   strNews += ((string) news.event.country_id + ";");
   strNews += ((string) news.event.unit + ";");
   strNews += ((string) news.event.importance + ";");
   strNews += ((string) news.event.multiplier + ";");
   strNews += ((string) news.event.digits + ";");
   strNews += (news.event.source_url + ";");
   strNews += (news.event.event_code + ";");
   strNews += (news.event.name + ";");

   strNews += ((string) news.value.id + ";");
   strNews += ((string) news.value.event_id + ";");
   strNews += ((string)(long)news.value.time + ";");
   strNews += ((string)(long)news.value.period + ";");
   strNews += ((string) news.value.revision + ";");
   strNews += ((string) news.value.actual_value + ";");
   strNews += ((string) news.value.prev_value + ";");
   strNews += ((string) news.value.revised_prev_value + ";");
   strNews += ((string) news.value.forecast_value + ";");
   strNews += ((string) news.value.impact_type + ";");

   strNews += ((string) news.country.id + ";");
   strNews += ((string) news.country.name + ";");
   strNews += ((string) news.country.code + ";");
   strNews += ((string) news.country.currency + ";");
   strNews += ((string) news.country.currency_symbol + ";");
   strNews += ((string) news.country.url_name + ";");

   return strNews;
  }
//+------------------------------------------------------------------+



//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool stringToNews(string newsStr, economicNews &news)
  {

   string tokens[];

   if(StringSplit(newsStr, ';', tokens) == 29)
     {
      news.event.id = (ulong)tokens[0];
      news.event.type = (ENUM_CALENDAR_EVENT_TYPE) tokens[1];
      news.event.sector = (ENUM_CALENDAR_EVENT_SECTOR)tokens[2];
      news.event.frequency = (ENUM_CALENDAR_EVENT_FREQUENCY)tokens[3];
      news.event.time_mode = (ENUM_CALENDAR_EVENT_TIMEMODE)tokens[4];
      news.event.country_id = (ulong)tokens[5];
      news.event.unit = (ENUM_CALENDAR_EVENT_UNIT)tokens[6];
      news.event.importance = (ENUM_CALENDAR_EVENT_IMPORTANCE)tokens[7];
      news.event.multiplier = (ENUM_CALENDAR_EVENT_MULTIPLIER)tokens[8];
      news.event.digits = (uint)tokens[9];
      news.event.source_url = tokens[10];
      news.event.event_code = tokens[11];
      news.event.name = tokens[12];

      news.value.id = (ulong)tokens[13];
      news.value.event_id = (ulong)tokens[14];
      news.value.time = (datetime)(ulong)tokens[15];
      news.value.period = (datetime)(long)tokens[16];
      news.value.revision = (int)tokens[17];
      news.value.actual_value = (long)tokens[18];
      news.value.prev_value = (long)tokens[19];
      news.value.revised_prev_value = (long)tokens[20];
      news.value.forecast_value = (long)tokens[21];
      news.value.impact_type = (ENUM_CALENDAR_EVENT_IMPACT)tokens[22];

      news.country.id = (ulong)tokens[23];
      news.country.name = tokens[24];
      news.country.code = tokens[25];
      news.country.currency = tokens[26];
      news.country.currency_symbol = tokens[27];
      news.country.url_name = tokens[28];

      return true;

     }

   return false;

  }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void downoadCountryNews(string countryCode,datetime From)
  {
   int fileHandle = FileOpen("news_" + countryCode + ".csv", FILE_WRITE | FILE_COMMON);

   if(fileHandle != INVALID_HANDLE)
     {
      MqlCalendarValue values[];

      if(CalendarValueHistory(values,From/* D'01.01.1970'*/, TimeCurrent(), countryCode))
        {
         for(int i = 0; i < ArraySize(values); i += 1)
           {
            MqlCalendarEvent event;

            if(CalendarEventById(values[i].event_id, event))
              {
               MqlCalendarCountry country;

               if(CalendarCountryById(event.country_id, country))
                 {
                  economicNews news;
                  createEconomicNews(event, values[i], country, news);
                  FileWrite(fileHandle, newsToString(news));
                 }
              }
           }


        }


     }

   FileClose(fileHandle);
   Print("Download Completed from " + countryCode);

  }
//+------------------------------------------------------------------+


//+------------------------------------------------------------------+


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool getBTnews(long period, string countryCode, economicNews &news[])
  {
   ArrayResize(news, 0);

   int fileHandle = FileOpen("news_" + countryCode + ".csv", FILE_READ | FILE_COMMON);

   if(fileHandle != INVALID_HANDLE)
     {
      while(!FileIsEnding(fileHandle))
        {
         economicNews n;
         if(stringToNews(FileReadString(fileHandle), n))
           {
            if(n.value.time < TimeCurrent() + period && n.value.time > TimeCurrent())
              {
               ArrayResize(news, ArraySize(news) + 1);
               news[ArraySize(news) - 1] = n;
              }
           }
        }

      FileClose(fileHandle);
      return true;
     }

   FileClose(fileHandle);
   return false;
  }
//+------------------------------------------------------------------+


Sir/ Madam ,

I tried it but it doesn't work news calendar in MT5 strategy tester.
What should I do ?

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