In message "Re: Bug report: java.util.GregorianCalendar"
on 03/08/28, Mark Wielaard <[EMAIL PROTECTED]> writes:
> Thanks. I finally looked into this.
> I created a simple Mauve test case for this (attached), but even with
> your patch it still gives a few failures.
>
> FAIL: gnu.testlet.java.util.GregorianCalendar.first: 1-3-2000 (number 1)
> got 2 but expected 1
> FAIL: gnu.testlet.java.util.GregorianCalendar.first: 1-6-2000 (number 1)
> got 2 but expected 1
> FAIL: gnu.testlet.java.util.GregorianCalendar.first: 1-4-2004 (number 1)
> got 2 but expected 1
> FAIL: gnu.testlet.java.util.GregorianCalendar.first: 1-12-2004 (number 1)
> got 2 but expected 1
> 4 of 72 tests failed
>
> Could you see if my test or GregorianCalendar is faulty?
Thank you for your attention.
First, the number of month is 0-based. So
> for (int month = 1; month <= 12; month++)
should be
for (int month = 0; month < 12; month++)
And I have found another bug shown by the attached program.
This bug seems to have something to do with leap yeas.
If this bug is fixed, my patch about the WEEK_OF_MONTH will
work.
$ cat TestGregorianCalendar.java
import java.util.*;
public class TestGregorianCalendar {
public static void main(String[] args) {
for (int year = 2000; year <= 2005; year++) {
for (int month = 0; month < 12; month++) {
GregorianCalendar cal = new GregorianCalendar(year, month, 1);
if (cal.get(Calendar.DAY_OF_MONTH) != 1) {
System.out.println (
cal.get(Calendar.YEAR) + "-" +
(cal.get(Calendar.MONTH) + 1) + "-" +
cal.get(Calendar.DAY_OF_MONTH));
}
}
}
}
}
$ java TestGregorianCalendar
2000-3-2
2000-4-2
2000-5-2
2000-6-2
2000-7-2
2000-8-2
2000-9-2
2000-10-2
2000-11-2
2000-12-2
2004-3-2
2004-4-2
2004-5-2
2004-6-2
2004-7-2
2004-8-2
2004-9-2
2004-10-2
2004-11-2
2004-12-2
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