package com.atlassian.core.cron;
   
   import com.atlassian.core.cron.generator.CronExpressionGenerator;
   import com.atlassian.core.cron.parser.CronExpressionParser;
   import junit.framework.TestCase;
   
   /**
    *
    */
  public class TestRoundTripParserGenerator extends TestCase
  {
  
      public void testHoursMinutes()
      {
          assertCronStringRoundTripsOk("0 10 5 ? * *");
      }
  
      public void testHoursWithIncrement3()
      {
          assertCronStringRoundTripsOk("0 0 4-17/3 ? * *");
      }
  
      public void testHoursWithIncrement2()
      {
          assertCronStringRoundTripsOk("0 0 4-17/2 ? * *");
      }
  
      public void testHoursWithIncrement1()
      {
          assertCronStringRoundTripsOk("0 0 4-17/1 ? * *");
      }
  
      public void testHourRangeWithMinutesIncrement15()
      {
          assertCronStringRoundTripsOk("0 0/15 5-10 ? * *");
      }
  
      public void testHourRangeWithMinutesIncrement30()
      {
          assertCronStringRoundTripsOk("0 0/30 1-10 ? * *");
      }
  
      public void testHourRangeStartingAtMidnight()
      {
          assertCronStringRoundTripsOk("0 0 0-5/2 ? * *");
      }
  
      public void testHourRangeEndingAtMidnight()
      {
          assertCronStringRoundTripsOk("0 0 18-23/2 ? * *");
      }
  
      public void testHourRangeAllDayWithIncrement15()
      {
          assertCronStringRoundTripsOk("0 0/15 * ? * *");
      }
  
      public void testHourRangeAllDayWithIncrement120()
      {
          assertCronStringRoundTripsOk("0 0 */2 ? * *");
      }
  
      /**
       * If both hour and minute increments are specified, and the hour increment is more than 1, then the resulting
       * CronEditorBean will be in "advanced mode", and thus should round trip okay
       */
      public void testBothHourAndMinuteIncrements()
      {
          assertCronStringRoundTripsOk("0 0/15 */2 ? * *");
      }
  
      /**
       * The following cron expr will also result in "advanced mode" being triggered
       */
      public void testMinuteIncrementForSingleHour()
      {
          assertCronStringRoundTripsOk("0 0/15 6 ? * *");
      }
  
      public void testMinuteIncrementForSingleHourRange()
      {
          assertCronStringRoundTripsOk("0 0/15 6-6 ? * *");
      }
  
      public void testMidnight()
      {
          assertCronStringRoundTripsOk("0 0 0 ? * *");
      }
  
      public void testDayOfMonthRunOnce()
      {
          assertCronStringRoundTripsOk("0 30 9 24 * ?");
      }
  
      // NOTE: a day of month AND day of week of month with from/to is not valid, day of month only does run once
  
      public void testDayOfWeekRunOnce()
      {
          assertCronStringRoundTripsOk("0 30 9 ? * 2,3,4");
     }
 
     public void testOneDayOfWeekRunOnce()
     {
         assertCronStringRoundTripsOk("0 30 9 ? * 2");
     }
 
 
     public void testDayOfWeekFromTo()
     {
         assertCronStringRoundTripsOk("0 0 9-20/2 ? * 2,3,4");
     }
 
     public void testDayOfWeekOfMonthRunOnce()
     {
         assertCronStringRoundTripsOk("0 20 9 ? * 2#2");
         assertCronStringRoundTripsOk("0 20 0 ? * 7#4");
     }
 
     public void testDayOfWeekOfMonthRunOnceLastOfMonth()
     {
         assertCronStringRoundTripsOk("0 20 9 ? * 2L");
     }
 
     public void testRunOnceAllDaysOfWeek()
     {
         assertCronStringRoundTripsOk("0 45 9 ? * 1,2,3,4,5,6,7");
     }
 
     public void testYearMode()
     {
         assertCronStringRoundTripsOk("0 15 10 * * ? *");
     }
 
     public void testAdvanced()
     {
         assertCronStringRoundTripsOk("0 0 10 1/3 * ?");
     }
 
     public void testDefault() {
         assertCronStringRoundTripsOk(CronExpressionParser.DEFAULT_CRONSTRING);
     }
 
     void assertCronStringRoundTripsOk(String cronString)
     {
         CronEditorBean bean = new CronExpressionParser(cronString).getCronEditorBean();
         CronExpressionGenerator generator = new CronExpressionGenerator();
         assertEquals(cronString, generator.getCronExpressionFromInput(bean));
     }
 
     void assertCronStringRoundTripsNotOk(String cronString)
     {
         try
         {
             assertCronStringRoundTripsOk(cronString);
         }
         catch (Error e)
         {
             // expected
             return;
         }
         fail("This cronstring should have not passed the test: " + cronString);
     }
 }