/***************************************************************************************
*
* Copyright (C) 1996-2007, International Business Machines
* Corporation and others. All Rights Reserved.
*/
/**
* Port From: JDK 1.4b1 : java.text.Format.IntlTestDateFormat
* Source File: java/text/format/IntlTestDateFormat.java
**/
/*
@test 1.4 98/03/06
@summary test International Date Format
*/
package com.ibm.icu.dev.test.format;
import com.ibm.icu.text.DateFormat;
import com.ibm.icu.text.SimpleDateFormat;
import com.ibm.icu.util.ULocale;
import java.text.FieldPosition;
import java.text.ParseException;
import java.util.Random;
import java.util.Date;
public class IntlTestDateFormat extends com.ibm.icu.dev.test.TestFmwk {
// Values in milliseconds (== Date)
private static final long ONESECOND = 1000;
private static final long ONEMINUTE = 60 * ONESECOND;
private static final long ONEHOUR = 60 * ONEMINUTE;
private static final long ONEDAY = 24 * ONEHOUR;
//private static final double ONEYEAR = 365.25 * ONEDAY; // Approximate //The variable is never used
// EModes
//private static final byte GENERIC = 0;
//private static final byte TIME = GENERIC + 1; //The variable is never used
//private static final byte DATE = TIME + 1; //The variable is never used
//private static final byte DATE_TIME = DATE + 1; //The variable is never used
private DateFormat fFormat = null;
private String fTestName = new String("getInstance");
private int fLimit = 3; // How many iterations it should take to reach convergence
private Random random; // initialized in randDouble
public IntlTestDateFormat() {
//Constructure
}
protected void init() throws Exception{
fFormat = DateFormat.getInstance();
}
public static void main(String[] args) throws Exception {
new IntlTestDateFormat().run(args);
}
public void TestULocale() {
localeTest(ULocale.getDefault(), "Default Locale");
}
// This test does round-trip testing (format -> parse -> format -> parse -> etc.) of DateFormat.
public void localeTest(final ULocale locale, final String localeName) {
int timeStyle, dateStyle;
// For patterns including only time information and a timezone, it may take
// up to three iterations, since the timezone may shift as the year number
// is determined. For other patterns, 2 iterations should suffice.
fLimit = 3;
for(timeStyle = 0; timeStyle < 4; timeStyle++) {
fTestName = new String("Time test " + timeStyle + " (" + localeName + ")");
try {
fFormat = DateFormat.getTimeInstance(timeStyle, locale);
}
catch(StringIndexOutOfBoundsException e) {
errln("FAIL: localeTest time getTimeInstance exception");
throw e;
}
TestFormat();
}
fLimit = 2;
for(dateStyle = 0; dateStyle < 4; dateStyle++) {
fTestName = new String("Date test " + dateStyle + " (" + localeName + ")");
try {
fFormat = DateFormat.getDateInstance(dateStyle, locale);
}
catch(StringIndexOutOfBoundsException e) {
errln("FAIL: localeTest date getTimeInstance exception");
throw e;
}
TestFormat();
}
for(dateStyle = 0; dateStyle < 4; dateStyle++) {
for(timeStyle = 0; timeStyle < 4; timeStyle++) {
fTestName = new String("DateTime test " + dateStyle + "/" + timeStyle + " (" + localeName + ")");
try {
fFormat = DateFormat.getDateTimeInstance(dateStyle, timeStyle, locale);
}
catch(StringIndexOutOfBoundsException e) {
errln("FAIL: localeTest date/time getDateTimeInstance exception");
throw e;
}
TestFormat();
}
}
}
public void TestFormat() {
if (fFormat == null) {
errln("FAIL: DateFormat creation failed");
return;
}
// logln("TestFormat: " + fTestName);
Date now = new Date();
tryDate(new Date(0));
tryDate(new Date((long) 1278161801778.0));
tryDate(now);
// Shift 6 months into the future, AT THE SAME TIME OF DAY.
// This will test the DST handling.
tryDate(new Date(now.getTime() + 6*30*ONEDAY));
Date limit = new Date(now.getTime() * 10); // Arbitrary limit
for (int i=0; i<2; ++i)
// tryDate(new Date(floor(randDouble() * limit)));
tryDate(new Date((long) (randDouble() * limit.getTime())));
}
private void describeTest() {
if (fFormat == null) {
errln("FAIL: no DateFormat");
return;
}
// Assume it's a SimpleDateFormat and get some info
SimpleDateFormat s = (SimpleDateFormat) fFormat;
logln(fTestName + " Pattern " + s.toPattern());
}
private void tryDate(Date theDate) {
final int DEPTH = 10;
Date[] date = new Date[DEPTH];
StringBuffer[] string = new StringBuffer[DEPTH];
int dateMatch = 0;
int stringMatch = 0;
boolean dump = false;
int i;
for (i=0; i<DEPTH; ++i) string[i] = new StringBuffer();
for (i=0; i<DEPTH; ++i) {
if (i == 0) date[i] = theDate;
else {
try {
date[i] = fFormat.parse(string[i-1].toString());
}
catch (ParseException e) {
describeTest();
errln("********** FAIL: Parse of " + string[i-1] + " failed for locale: "+fFormat.getLocale(ULocale.ACTUAL_LOCALE));
dump = true;
break;
}
}
FieldPosition position = new FieldPosition(0);
fFormat.format(date[i], string[i], position);
if (i > 0) {
if (dateMatch == 0 && date[i] == date[i-1]) dateMatch = i;
else if (dateMatch > 0 && date[i] != date[i-1]) {
describeTest();
errln("********** FAIL: Date mismatch after match.");
dump = true;
break;
}
if (stringMatch == 0 && string[i] == string[i-1]) stringMatch = i;
else if (stringMatch > 0 && string[i] != string[i-1]) {
describeTest();
errln("********** FAIL: String mismatch after match.");
dump = true;
break;
}
}
if (dateMatch > 0 && stringMatch > 0) break;
}
if (i == DEPTH) --i;
if (stringMatch > fLimit || dateMatch > fLimit) {
describeTest();
errln("********** FAIL: No string and/or date match within " + fLimit + " iterations.");
dump = true;
}
if (dump) {
for (int k=0; k<=i; ++k) {
logln("" + k + ": " + date[k] + " F> " + string[k] + " P> ");
}
}
}
// Return a random double from 0.01 to 1, inclusive
private double randDouble() {
if (random == null) {
random = createRandom();
}
// Assume 8-bit (or larger) rand values. Also assume
// that the system rand() function is very poor, which it always is.
// double d;
// int i;
// do {
// for (i=0; i < sizeof(double); ++i)
// {
// char poke = (char*)&d;
// poke[i] = (rand() & 0xFF);
// }
// } while (TPlatformUtilities.isNaN(d) || TPlatformUtilities.isInfinite(d));
// if (d < 0.0) d = -d;
// if (d > 0.0)
// {
// double e = floor(log10(d));
// if (e < -2.0) d *= pow(10.0, -e-2);
// else if (e > -1.0) d /= pow(10.0, e+1);
// }
// return d;
return random.nextDouble();
}
public void TestAvailableLocales() {
final ULocale[] locales = DateFormat.getAvailableULocales();
long count = locales.length;
logln("" + count + " available locales");
if (locales != null && count != 0) {
StringBuffer all = new StringBuffer();
for (int i=0; i<count; ++i) {
if (i!=0) all.append(", ");
all.append(locales[i].getDisplayName());
}
logln(all.toString());
}
else errln("********** FAIL: Zero available locales or null array pointer");
}
public void TestRoundtrip() {
ULocale[] locales;
if (isQuick()) {
locales = new ULocale[] {
new ULocale("bg_BG"),
new ULocale("fr_CA"),
new ULocale("zh_TW"),
};
} else {
locales = DateFormat.getAvailableULocales();
}
long count = locales.length;
if (locales != null && count != 0) {
for (int i=0; i<count; ++i) {
String name = locales[i].getDisplayName();
logln("Testing " + name + "...");
try {
localeTest(locales[i], name);
}
catch(Exception e) {
errln("FAIL: TestMonster localeTest exception" + e);
}
}
}
}
}
//eof