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ICU-6379 More efficient handleGetMonthLength method for CECalendar

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X-SVN-Rev: 26159
This commit is contained in:
Jason Spieth 2009-06-24 21:40:58 +00:00
parent 9e39b57bf1
commit b83aa67d3b
2 changed files with 61 additions and 0 deletions
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32
icu4j/main/classes/core/src/com/ibm/icu/util/CECalendar.java
View file

@ -186,6 +186,38 @@ abstract class CECalendar extends Calendar {
return LIMITS[field][limitType];
}
// (The following method is not called because all existing subclasses
// override it.
///CLOVER:OFF
/**
* Return the number of days in the given month of the given extended
* year of this calendar system. Subclasses should override this
* method if they can provide a more correct or more efficient
* implementation than the default implementation in Calendar.
* @new ICU 4.4
*/
protected int handleGetMonthLength(int extendedYear, int month)
{
// The Ethiopian and Coptic calendars have 13 months, 12 of 30 days each and
// an intercalary month at the end of the year of 5 or 6 days, depending whether
// the year is a leap year or not. The Leap Year follows the same rules as the
// Julian Calendar so that the extra month always has six days in the year before
// a Julian Leap Year.
if ((month + 1) % 13 != 0)
{
// not intercalary month
return 30;
}
else
{
// intercalary month 5 days + possible leap day
return ((extendedYear % 4) / 3) + 5;
}
}
///CLOVER:ON
//-------------------------------------------------------------------------
// Calendar framework
//-------------------------------------------------------------------------

29
icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/CopticTest.java
View file

@ -211,6 +211,35 @@ public class CopticTest extends CalendarTest
doTheoreticalLimitsTest(coptic, true);
}
/**
* Test for track ticket 6379 - proper reporting of
* maximum month lengths
*/
public void Test6379()
{
int i;
Calendar cal = Calendar.getInstance();
cal.set(2007, Calendar.JANUARY, 1);
CopticCalendar coptic = new CopticCalendar();
// first twelve months have 30 days
for (i = 0; i < 12; i++)
{
coptic.set(Calendar.MONTH, i);
if (30 != coptic.getActualMaximum(Calendar.DAY_OF_MONTH))
{
errln("30 days not returned for month " + (i + 1));
}
}
// test month 13
coptic.set(Calendar.MONTH, i);
if (5 != coptic.getActualMaximum(Calendar.DAY_OF_MONTH))
{
errln("5 days not returned for month " + (i + 1));
}
}
public void TestCoverage() {
{