Test_DST 2

//+------------------------------------------------------------------+
//|                                                   Test_DST 2.mq5 |
//|                                                            Calli |
//|                              https://www.mql5.com/de/users/gooly |
//+------------------------------------------------------------------+
#property copyright "Calli"
#property link      "https://www.mql5.com/de/users/gooly"
#property version   "1.00"

#include <DealingWithTime.mqh>

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//---

         int y,m,d;                 //  year, month, day
         datetime t;                //  date to request DSTs
         y = 1975;
         while(y++<2030) {

            // check spring times
            m = int(GetMicrosecondCount()%6  + 1);    // random month 1-6
            d = int(GetMicrosecondCount()%26 + 1);    // random day 1 - 27
            t = StringToTime(string(y)+"."+(string)m+"."+(string)d+" 01:00");

            calcSwitchUSD(t);                         // calc DST USA
            if (DoWi(nxtSwitch_USD) > 0)              // check for Sunday 
               DebugBreak();                         
            calcSwitchEUR(t);                         // calc DST Europe
            if (DoWi(nxtSwitch_EUR) > 0)              // check for Sunday 
               DebugBreak();

            calcSwitchAUD(t);                         // calc DST AUD (Sydney)
            if (DoWi(nxtSwitch_AUD) > 0)              // check for Sunday 
               DebugBreak();

            // check autumn times
            t = StringToTime(string(y)+"."+(string)(m+6)+"."+(string)d+" 01:00");

            calcSwitchUSD(t);                         // calc DST USA
            if (DoWi(nxtSwitch_USD) > 0)              // check for Sunday 
               DebugBreak();
            calcSwitchEUR(t);                         // calc DST Europe
            if (DoWi(nxtSwitch_EUR) > 0)              // check for Sunday 
               DebugBreak();

            calcSwitchAUD(t);                         // calc DST AUD (Sydney)
            if (DoWi(nxtSwitch_AUD) > 0)              // check for Sunday 
               DebugBreak();
         }
         
         ExpertRemove();
  }
//+------------------------------------------------------------------+