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// Tags: JDK1.1
// Copyright (C) 2004 Stephen Crawley <crawley@dstc.edu.au>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
package gnu.testlet.java.util.GregorianCalendar;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import java.util.*;
/**
* Checks conversion of millisecond time values to Gregorian dates (and
* back) across the range of time values.
*/
public class conversion implements Testlet
{
private TestHarness harness;
public void test (TestHarness harness)
{
this.harness = harness;
testTimeZero();
testMonotonic1();
testMonotonic2();
}
private void testTimeZero()
{
GregorianCalendar cal = new GregorianCalendar();
cal.setTimeZone(TimeZone.getTimeZone("UTC"));
cal.setTimeInMillis(0L);
harness.checkPoint("Testing setTimeInMillis(0L)");
harness.check(cal.getTimeInMillis(), 0L);
harness.check(cal.get(Calendar.ERA), GregorianCalendar.AD);
harness.check(cal.get(Calendar.YEAR), 1970);
harness.check(cal.get(Calendar.MONTH), Calendar.JANUARY);
harness.check(cal.get(Calendar.DAY_OF_MONTH), 1);
harness.check(cal.get(Calendar.HOUR_OF_DAY), 0);
harness.check(cal.get(Calendar.MINUTE), 0);
harness.check(cal.get(Calendar.SECOND), 0);
harness.check(cal.get(Calendar.MILLISECOND), 0);
}
private void testMonotonic1()
{
GregorianCalendar cal = new GregorianCalendar();
cal.setTimeZone(TimeZone.getTimeZone("UTC"));
// Check in range 0 <= t <= max long
long[] times = new long[64];
times[0] = 0L;
for (int i = 1; i < 63; i++) {
times[i] = 1L << i;
}
times[63] = Long.MAX_VALUE;
cal.setTimeInMillis(times[0]);
long[] prevFields = getCalFields(cal);
for (int i = 1; i < times.length; i++) {
cal.setTimeInMillis(times[i]);
long[] fields = getCalFields(cal);
harness.checkPoint("Testing setTimeInMillis(" + times[i] + ") i = " + i);
harness.check(fields[0], times[i]);
for (int j = 1; j < fields.length; j++) {
if (fields[j] != prevFields[j]) {
harness.check(fields[j] > prevFields[j]);
if (fields[j] < prevFields[j]) {
harness.debug("cal field " + j + " " +
dumpCalFields(fields) + " < " +
dumpCalFields(prevFields));
}
break;
}
}
prevFields = fields;
}
}
private void testMonotonic2()
{
GregorianCalendar cal = new GregorianCalendar();
cal.setTimeZone(TimeZone.getTimeZone("UTC"));
// Check in range min long <= t < 0
long[] times = new long[63];
for (int i = 0; i < 63; i++) {
times[62 - i] = -1L << i;
}
cal.setTimeInMillis(times[0]);
long[] prevFields = getCalFields(cal);
for (int i = 1; i < times.length; i++) {
cal.setTimeInMillis(times[i]);
long[] fields = getCalFields(cal);
harness.checkPoint("Testing setTimeInMillis(" + times[i] + ") i = " + i);
harness.check(fields[0], times[i]);
if (fields[1] == prevFields[1]) {
for (int j = 2; j < fields.length; j++) {
if (fields[j] != prevFields[j]) {
// In the BC era, years are >= 1 and go backwards.
boolean ok =
((fields[j] > prevFields[j]) == (j > 2 || fields[1] == 1));
harness.check(ok);
if (!ok) {
harness.debug("cal field " + j + " " +
dumpCalFields(fields) + " < " +
dumpCalFields(prevFields));
}
break;
}
}
}
prevFields = fields;
}
}
private long[] getCalFields(GregorianCalendar cal) {
return new long[] {
cal.getTimeInMillis(),
cal.get(Calendar.ERA),
cal.get(Calendar.YEAR),
cal.get(Calendar.MONTH),
cal.get(Calendar.DAY_OF_MONTH),
cal.get(Calendar.HOUR_OF_DAY),
cal.get(Calendar.MINUTE),
cal.get(Calendar.SECOND),
cal.get(Calendar.MILLISECOND)
};
}
private String dumpCalFields(long[] fields) {
StringBuffer sb = new StringBuffer();
sb.append(fields[0]);
for (int i = 1; i < fields.length; i++) {
sb.append((i == 1) ? " {" : ", ");
sb.append(fields[i]);
}
sb.append("}");
return sb.toString();
}
}
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