8218948: SimpleDateFormat :: format - Zone Names are not reflected correctly during run time
Reviewed-by: lancea, rgoel
/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8218948
* @summary TCK tests that check the time zone names between DFS.getZoneStrings()
* and SDF.format("z*")
* @run main SDFTCKZoneNamesTest
*/
import java.text.*;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
public class SDFTCKZoneNamesTest {
StringBuffer myFormat(Date date, SimpleDateFormat sdf) {
String pattern = sdf.toPattern();
StringBuffer toAppendTo = new StringBuffer("");
boolean inQuote = false;
char prevCh = 0;
char ch;
int count = 0;
for (int i = 0; i < pattern.length(); i++) {
ch = pattern.charAt(i);
if (inQuote) {
if (ch == '\'') {
inQuote = false;
if (count == 0) toAppendTo.append(ch);
else count = 0;
} else {
toAppendTo.append(ch);
count++;
}
} else { // not inQuote
if (ch == '\'') {
inQuote = true;
if (count > 0) {
toAppendTo.append(subFormat(prevCh, count, date, sdf));
count = 0;
prevCh = 0;
}
} else if (ch >= 'a' && ch <= 'z' || ch >= 'A' && ch <= 'Z') {
if (ch != prevCh && count > 0) {
toAppendTo.append(subFormat(prevCh, count, date, sdf));
prevCh = ch;
count = 1;
} else {
if (ch != prevCh) prevCh = ch;
count++;
}
} else if (count > 0) {
toAppendTo.append(subFormat(prevCh, count, date, sdf));
toAppendTo.append(ch);
prevCh = 0;
count = 0;
} else toAppendTo.append(ch);
}
}
if (count > 0) {
toAppendTo.append(subFormat(prevCh, count, date, sdf));
}
return toAppendTo;
}
private String subFormat(char ch, int count, Date date, SimpleDateFormat sdf)
throws IllegalArgumentException {
int value = 0;
int patternCharIndex = -1;
int maxIntCount = 10;
String current = "";
DateFormatSymbols formatData = sdf.getDateFormatSymbols();
Calendar calendar = sdf.getCalendar();
calendar.setTime(date);
NumberFormat nf = sdf.getNumberFormat();
nf.setGroupingUsed(false);
if ((patternCharIndex = "GyMdkHmsSEDFwWahKz".indexOf(ch)) == -1)
throw new IllegalArgumentException("Illegal pattern character " +
"'" + ch + "'");
switch (patternCharIndex) {
case 0: // 'G' - ERA
value = calendar.get(Calendar.ERA);
current = formatData.getEras()[value];
break;
case 1: // 'y' - YEAR
value = calendar.get(Calendar.YEAR);
if (count == 2) {
// For formatting, if the number of pattern letters is 2,
// the year is truncated to 2 digits;
current = zeroPaddingNumber(value, 2, 2, nf);
} else {
// otherwise it is interpreted as a number.
current = zeroPaddingNumber(value, count, maxIntCount, nf);
}
break;
case 2: // 'M' - MONTH
value = calendar.get(Calendar.MONTH);
if (count >= 4)
// DateFormatSymbols::getMonths spec: "If the language requires different forms for formatting
// and stand-alone usages, this method returns month names in the formatting form."
// Because of that only formatting cases patterns may be tested. Like, "MMMM yyyy". Wrong
// pattern: "MMMM".
current = formatData.getMonths()[value];
else if (count == 3)
// DateFormatSymbols::getShortMonths spec: "If the language requires different forms for formatting
// and stand-alone usages, This method returns short month names in the formatting form."
// Because of that only formatting cases patterns may be tested. Like, "MMM yyyy". Wrong pattern:
// "MMM".
current = formatData.getShortMonths()[value];
else
current = zeroPaddingNumber(value + 1, count, maxIntCount, nf);
break;
case 3: // 'd' - DATE
value = calendar.get(Calendar.DATE);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 4: // 'k' - HOUR_OF_DAY: 1-based. eg, 23:59 + 1 hour =>> 24:59
if ((value = calendar.get(Calendar.HOUR_OF_DAY)) == 0)
current = zeroPaddingNumber(
calendar.getMaximum(Calendar.HOUR_OF_DAY) + 1,
count, maxIntCount, nf);
else
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 5: // 'H' - HOUR_OF_DAY:0-based. eg, 23:59 + 1 hour =>> 00:59
value = calendar.get(Calendar.HOUR_OF_DAY);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 6: // 'm' - MINUTE
value = calendar.get(Calendar.MINUTE);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 7: // 's' - SECOND
value = calendar.get(Calendar.SECOND);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 8: // 'S' - MILLISECOND
value = calendar.get(Calendar.MILLISECOND);
/*
if (count > 3)
value = value * (int) Math.pow(10, count - 3);
else if (count == 2)
value = (value + 5) / 10;
else if (count == 1)
value = (value + 50) / 100;
*/
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 9: // 'E' - DAY_OF_WEEK
value = calendar.get(Calendar.DAY_OF_WEEK);
if (count >= 4)
current = formatData.getWeekdays()[value];
else // count < 4, use abbreviated form if exists
current = formatData.getShortWeekdays()[value];
break;
case 10: // 'D' - DAY_OF_YEAR
value = calendar.get(Calendar.DAY_OF_YEAR);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 11: // 'F' - DAY_OF_WEEK_IN_MONTH
value = calendar.get(Calendar.DAY_OF_WEEK_IN_MONTH);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 12: // 'w' - WEEK_OF_YEAR
value = calendar.get(Calendar.WEEK_OF_YEAR);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 13: // 'W' - WEEK_OF_MONTH
value = calendar.get(Calendar.WEEK_OF_MONTH);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 14: // 'a' - AM_PM
value = calendar.get(Calendar.AM_PM);
current = formatData.getAmPmStrings()[value];
break;
case 15: // 'h' - HOUR:1-based. eg, 11PM + 1 hour =>> 12 AM
if ((value = calendar.get(Calendar.HOUR)) == 0)
current = zeroPaddingNumber(
calendar.getLeastMaximum(Calendar.HOUR) + 1,
count, maxIntCount, nf);
else
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 16: // 'K' - HOUR: 0-based. eg, 11PM + 1 hour =>> 0 AM
value = calendar.get(Calendar.HOUR);
current = zeroPaddingNumber(value, count, maxIntCount, nf);
break;
case 17: // 'z' - ZONE_OFFSET
int zoneIndex = getZoneIndex(calendar.getTimeZone().getID(), formatData);
if (zoneIndex == -1) {
StringBuffer zoneString = new StringBuffer();
value = calendar.get(Calendar.ZONE_OFFSET)
+ calendar.get(Calendar.DST_OFFSET);
if (value < 0) {
zoneString.append("GMT-");
value = -value; // suppress the '-' sign for text display.
} else
zoneString.append("GMT+");
zoneString.append(
zeroPaddingNumber((int) (value / (60 * 60 * 1000)), 2, 2, nf));
zoneString.append(':');
zoneString.append(
zeroPaddingNumber(
(int) ((value % (60 * 60 * 1000)) / (60 * 1000)), 2, 2, nf));
current = zoneString.toString();
} else if (calendar.get(Calendar.DST_OFFSET) != 0) {
if (count >= 4)
current = formatData.getZoneStrings()[zoneIndex][3];
else
// count < 4, use abbreviated form if exists
current = formatData.getZoneStrings()[zoneIndex][4];
} else {
if (count >= 4)
current = formatData.getZoneStrings()[zoneIndex][1];
else
current = formatData.getZoneStrings()[zoneIndex][2];
}
break;
}
return current;
}
String zeroPaddingNumber(long value, int minDigits, int maxDigits,
NumberFormat nf) {
nf.setMinimumIntegerDigits(minDigits);
nf.setMaximumIntegerDigits(maxDigits);
return nf.format(value);
}
int getZoneIndex(String ID, DateFormatSymbols dfs) {
String[][] zoneStrings = dfs.getZoneStrings();
for (int index = 0; index < zoneStrings.length; index++) {
if (ID.equalsIgnoreCase(zoneStrings[index][0])) return index;
}
return -1;
}
final int second = 1000;
final int minute = 60 * second;
final int hour = 60 * minute;
final int day = 24 * hour;
final int month = 30 * day;
final int year = 365 * day;
final int someday = 30 * year + 3 * month + 19 * day + 5 * hour;
/* standalone interface */
public static void main(String argv[]) {
Locale defaultLocale = Locale.getDefault();
SDFTCKZoneNamesTest test = new SDFTCKZoneNamesTest();
try {
List.of(Locale.ROOT,
Locale.CHINA,
Locale.forLanguageTag("es-419"),
Locale.GERMANY,
Locale.forLanguageTag("hi-IN"),
Locale.JAPAN,
Locale.TAIWAN,
Locale.UK,
Locale.US,
Locale.forLanguageTag("uz-Cyrl-UZ"),
Locale.forLanguageTag("zh-SG"),
Locale.forLanguageTag("zh-HK"),
Locale.forLanguageTag("zh-MO")).stream()
.forEach(l -> {
System.out.printf("Testing locale: %s%n", l);
Locale.setDefault(l);
test.SimpleDateFormat0062();
});
} finally {
Locale.setDefault(defaultLocale);
}
}
/**
* Equivalence class partitioning
* with state, input and output values orientation
* for public StringBuffer format(Date date, StringBuffer result, FieldPosition fp),
* <br><b>pre-conditions</b>: patterns: { "'s0mething'z mm::hh,yyyy zz",
* "zzzz",
* "z"} (each pattern contains letter for TIMEZONE_FIELD),
* <br><b>date</b>: a Date object
* <br><b>result</b>: a string
* <br><b>fp</b>: a FieldPosition object with TIMEZONE_FIELD field
* <br><b>output</b>: formatted date as expected.
*/
public void SimpleDateFormat0062() {
boolean passed = true;
String patterns[] = {"'s0mething'z mm::hh,yyyy zz",
"zzzz",
"z"};
SimpleDateFormat sdf = new SimpleDateFormat();
Date date = new Date(1234567890);
for (String[] tz : sdf.getDateFormatSymbols().getZoneStrings()) {
sdf.setTimeZone(TimeZone.getTimeZone(tz[0]));
for (int i = 0; i < patterns.length && passed; i++) {
StringBuffer result = new StringBuffer("qwerty");
FieldPosition fp = new FieldPosition(DateFormat.TIMEZONE_FIELD);
sdf.applyPattern(patterns[i]);
String expected = new
StringBuffer("qwerty").append(myFormat(date,
sdf)).toString();
String formatted = sdf.format(date, result, fp).toString();
if (!expected.equals(formatted)) {
System.out.println(
"method format(date, StringBuffer, FieldPosition) formats wrong");
System.out.println(" pattern: " + patterns[i]);
System.out.println(" time zone ID: " + tz[0]);
System.out.println(" expected result: " + expected);
System.out.println(" formatted result: " + formatted);
passed = false;
}
if (passed && !expected.equals(result.toString())) {
System.out.println(
"method format(Date date, StringBuffer toAppendTo, FieldPosition fp) toAppendTo is not " +
"equal to output");
System.out.println(" pattern: " + patterns[i]);
System.out.println(" time zone ID: " + tz[0]);
System.out.println(" toAppendTo : " + result);
System.out.println(" formatted date: " + formatted);
passed = false;
}
}
}
if(passed)
{
System.out.println("PASSED : OKAY");
}else
{
throw new RuntimeException("FAILED");
}
}
}