/*
    *  Copyright 2001-2005 Stephen Colebourne
    *
    *  Licensed under the Apache License, Version 2.0 (the "License");
    *  you may not use this file except in compliance with the License.
    *  You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
    *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  package org.joda.time.chrono.gj;
  
  /**
   * 
   * @author Brian S O'Neill
   */
  class TestJulianMonthOfYearField extends TestGJMonthOfYearField {
      public TestJulianMonthOfYearField(TestJulianChronology chrono) {
          super(chrono);
      }
  
      public int get(long millis) {
          return iChronology.gjFromMillis(millis)[1];
      }
  
      public long add(long millis, long value) {
          int year = iChronology.year().get(millis);
          int newYear = year + (int)TestGJChronology.div(value, 12);
          if (year < 0) {
              if (newYear >= 0) {
                  newYear++;
              }
          } else {
              if (newYear <= 0) {
                  newYear--;
              }
          }
          int newMonth = get(millis) + (int)TestGJChronology.mod(value, 12);
          if (newMonth > 12) {
              if (newYear == -1) {
                  newYear = 1;
              } else {
                  newYear++;
              }
              newMonth -= 12;
          }
          int newDay = iChronology.dayOfMonth().get(millis);
          millis = iChronology.getTimeOnlyMillis(millis) 
              + iChronology.millisFromGJ(newYear, newMonth, newDay);
          while (get(millis) != newMonth) {
              millis = iChronology.dayOfYear().add(millis, -1);
          }
          return millis;
      }
  }