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      1 /*
      2  * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
      3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
      4  *
      5  * This code is free software; you can redistribute it and/or modify it
      6  * under the terms of the GNU General Public License version 2 only, as
      7  * published by the Free Software Foundation.
      8  *
      9  * This code is distributed in the hope that it will be useful, but WITHOUT
     10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     12  * version 2 for more details (a copy is included in the LICENSE file that
     13  * accompanied this code).
     14  *
     15  * You should have received a copy of the GNU General Public License version
     16  * 2 along with this work; if not, write to the Free Software Foundation,
     17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
     18  *
     19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     20  * or visit www.oracle.com if you need additional information or have any
     21  * questions.
     22  */
     23 
     24 package test.java.time.format;
     25 
     26 import static org.testng.Assert.assertEquals;
     27 
     28 import java.text.DateFormatSymbols;
     29 import java.time.ZoneId;
     30 import java.time.ZonedDateTime;
     31 import java.time.format.DecimalStyle;
     32 import java.time.format.DateTimeFormatter;
     33 import java.time.format.DateTimeFormatterBuilder;
     34 import java.time.format.TextStyle;
     35 import java.time.temporal.ChronoField;
     36 import java.time.temporal.TemporalQueries;
     37 import java.time.zone.ZoneRulesProvider;
     38 import java.util.Arrays;
     39 import java.util.Date;
     40 import java.util.HashSet;
     41 import java.util.Locale;
     42 import java.util.Random;
     43 import java.util.Set;
     44 import java.util.TimeZone;
     45 import jdk.testlibrary.RandomFactory;
     46 
     47 import org.testng.annotations.DataProvider;
     48 import org.testng.annotations.Test;
     49 import android.icu.impl.ZoneMeta;
     50 
     51 /*
     52  * @test
     53  * @bug 8081022
     54  * @key randomness
     55  */
     56 
     57 /**
     58  * Test ZoneTextPrinterParser
     59  */
     60 @Test
     61 public class TestZoneTextPrinterParser extends AbstractTestPrinterParser {
     62 
     63     protected static DateTimeFormatter getFormatter(Locale locale, TextStyle style) {
     64         return new DateTimeFormatterBuilder().appendZoneText(style)
     65                                              .toFormatter(locale)
     66                                              .withDecimalStyle(DecimalStyle.of(locale));
     67     }
     68 
     69     public void test_printText() {
     70         Random r = RandomFactory.getRandom();
     71         // Android-changed: only run one iteration.
     72         int N = 1;
     73         Locale[] locales = Locale.getAvailableLocales();
     74         Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
     75         ZonedDateTime zdt = ZonedDateTime.now();
     76 
     77         //System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
     78         while (N-- > 0) {
     79             zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
     80                      .with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
     81             // Android-changed: loop over locales first to speed up test. TimeZoneNames are cached
     82             // per locale, but the cache only holds the most recently used locales.
     83             for (Locale locale : locales) {
     84                 // Android-changed: "ji" isn't correctly aliased to "yi", see http//b/8634320.
     85                 if (locale.getLanguage().equals("ji")) {
     86                     continue;
     87                 }
     88                 for (String zid : zids) {
     89                     if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
     90                         continue;      // TBD: match jdk behavior?
     91                     }
     92                     // Android-changed (http://b/33197219): TimeZone.getDisplayName() for
     93                     // non-canonical time zones are not correct.
     94                     if (!zid.equals(ZoneMeta.getCanonicalCLDRID(zid))) {
     95                         continue;
     96                     }
     97                     zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
     98                     TimeZone tz = TimeZone.getTimeZone(zid);
     99                     // Android-changed: We don't have long names for GMT.
    100                     if (tz.getID().equals("GMT")) {
    101                         continue;
    102                     }
    103                     boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
    104                     printText(locale, zdt, TextStyle.FULL, tz,
    105                             tz.getDisplayName(isDST, TimeZone.LONG, locale));
    106                     printText(locale, zdt, TextStyle.SHORT, tz,
    107                             tz.getDisplayName(isDST, TimeZone.SHORT, locale));
    108                 }
    109             }
    110         }
    111     }
    112 
    113     private void printText(Locale locale, ZonedDateTime zdt, TextStyle style, TimeZone zone, String expected) {
    114         String result = getFormatter(locale, style).format(zdt);
    115         // Android-changed: TimeZone.getDisplayName() will never return "GMT".
    116         if (result.startsWith("GMT") && expected.equals("GMT+00:00")) {
    117             return;
    118         }
    119         if (!result.equals(expected)) {
    120             if (result.equals("FooLocation")) { // from rules provider test if same vm
    121                 return;
    122             }
    123             System.out.println("----------------");
    124             System.out.printf("tdz[%s]%n", zdt.toString());
    125             System.out.printf("[%-5s, %5s] :[%s]%n", locale.toString(), style.toString(),result);
    126             System.out.printf(" %5s, %5s  :[%s] %s%n", "", "", expected, zone);
    127         }
    128         assertEquals(result, expected);
    129     }
    130 
    131     // Android-changed: disable test as it doesn't assert anything and produces a lot of output.
    132     @Test(enabled = false)
    133     public void test_ParseText() {
    134         Locale[] locales = new Locale[] { Locale.ENGLISH, Locale.JAPANESE, Locale.FRENCH };
    135         Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
    136         for (Locale locale : locales) {
    137             parseText(zids, locale, TextStyle.FULL, false);
    138             parseText(zids, locale, TextStyle.FULL, true);
    139             parseText(zids, locale, TextStyle.SHORT, false);
    140             parseText(zids, locale, TextStyle.SHORT, true);
    141         }
    142     }
    143 
    144     private static Set<ZoneId> preferred = new HashSet<>(Arrays.asList(new ZoneId[] {
    145         ZoneId.of("EST", ZoneId.SHORT_IDS),
    146         ZoneId.of("Asia/Taipei"),
    147         ZoneId.of("CET"),
    148     }));
    149 
    150     private static Set<ZoneId> preferred_s = new HashSet<>(Arrays.asList(new ZoneId[] {
    151          ZoneId.of("EST", ZoneId.SHORT_IDS),
    152          ZoneId.of("CET"),
    153          ZoneId.of("Australia/South"),
    154          ZoneId.of("Australia/West"),
    155          ZoneId.of("Asia/Shanghai"),
    156     }));
    157 
    158     private static Set<ZoneId> none = new HashSet<>();
    159 
    160     @DataProvider(name="preferredZones")
    161     Object[][] data_preferredZones() {
    162         // Android-changed: Differences in time zone name handling.
    163         // Android and java.time (via the RI) have differences in how they handle Time Zone Names.
    164         // - Android doesn't use IANA abbreviates (usually 3-letter abbreviations) except where they
    165         //   are widely used in a given locale (so CST will not resolve to "Chinese Standard Time").
    166         // - Android doesn't provide long names for zones like "CET". Only the Olson IDs like
    167         //   "Europe/London" have names attached to them.
    168         // - When no preferred zones are provided then no guarantee is made about the specific zone
    169         //   returned.
    170         // - Android uses the display name "Taipei Standard Time" as CLDR does.
    171         // Basically Android time zone parsing sticks strictly to what can be done with the data
    172         // provided by IANA and CLDR and avoids introducing additional values (like specific order
    173         // and additional names) to those.
    174         return new Object[][] {
    175             // {"America/New_York", "Eastern Standard Time", none,      Locale.ENGLISH, TextStyle.FULL},
    176 //          {"EST",              "Eastern Standard Time", preferred, Locale.ENGLISH, TextStyle.FULL},
    177             // {"Europe/Paris",     "Central European Time", none,      Locale.ENGLISH, TextStyle.FULL},
    178             // {"CET",              "Central European Time", preferred, Locale.UK, TextStyle.FULL},
    179             // {"Asia/Shanghai",    "China Standard Time",   none,      Locale.ENGLISH, TextStyle.FULL},
    180             // {"Asia/Taipei",      "China Standard Time",   preferred, Locale.ENGLISH, TextStyle.FULL},
    181             // {"America/Chicago",  "CST",                   none,      Locale.ENGLISH, TextStyle.SHORT},
    182             // {"Asia/Taipei",      "CST",                   preferred, Locale.ENGLISH, TextStyle.SHORT},
    183             // Australia/South is a valid synonym for Australia/Adelaide, so this test will pass.
    184             {"Australia/South",  "ACST",                  preferred_s, new Locale("en", "AU"), TextStyle.SHORT},
    185             // {"America/Chicago",  "CDT",                   none,        Locale.ENGLISH, TextStyle.SHORT},
    186             // {"Asia/Shanghai",    "CDT",                   preferred_s, Locale.ENGLISH, TextStyle.SHORT},
    187        };
    188     }
    189 
    190     @Test(dataProvider="preferredZones")
    191     public void test_ParseText(String expected, String text, Set<ZoneId> preferred, Locale locale, TextStyle style) {
    192         DateTimeFormatter fmt = new DateTimeFormatterBuilder().appendZoneText(style, preferred)
    193                                                               .toFormatter(locale)
    194                                                               .withDecimalStyle(DecimalStyle.of(locale));
    195 
    196         String ret = fmt.parse(text, TemporalQueries.zone()).getId();
    197 
    198         System.out.printf("[%-5s %s] %24s -> %s(%s)%n",
    199                           locale.toString(),
    200                           style == TextStyle.FULL ? " full" :"short",
    201                           text, ret, expected);
    202 
    203         assertEquals(ret, expected);
    204 
    205     }
    206 
    207 
    208     private void parseText(Set<String> zids, Locale locale, TextStyle style, boolean ci) {
    209         System.out.println("---------------------------------------");
    210         DateTimeFormatter fmt = getFormatter(locale, style, ci);
    211         for (String[] names : new DateFormatSymbols(locale).getZoneStrings()) {
    212             if (!zids.contains(names[0])) {
    213                 continue;
    214             }
    215             String zid = names[0];
    216             String expected = ZoneName.toZid(zid, locale);
    217 
    218             parse(fmt, zid, expected, zid, locale, style, ci);
    219             int i = style == TextStyle.FULL ? 1 : 2;
    220             for (; i < names.length; i += 2) {
    221                 parse(fmt, zid, expected, names[i], locale, style, ci);
    222             }
    223         }
    224     }
    225 
    226     private void parse(DateTimeFormatter fmt,
    227                        String zid, String expected, String text,
    228                        Locale locale, TextStyle style, boolean ci) {
    229         if (ci) {
    230             text = text.toUpperCase();
    231         }
    232         String ret = fmt.parse(text, TemporalQueries.zone()).getId();
    233         // TBD: need an excluding list
    234         // assertEquals(...);
    235         if (ret.equals(expected) ||
    236             ret.equals(zid) ||
    237             ret.equals(ZoneName.toZid(zid)) ||
    238             ret.equals(expected.replace("UTC", "UCT"))) {
    239             return;
    240         }
    241         System.out.printf("[%-5s %s %s %16s] %24s -> %s(%s)%n",
    242                           locale.toString(),
    243                           ci ? "ci" : "  ",
    244                           style == TextStyle.FULL ? " full" :"short",
    245                           zid, text, ret, expected);
    246     }
    247 
    248     private DateTimeFormatter getFormatter(Locale locale, TextStyle style, boolean ci) {
    249         DateTimeFormatterBuilder db = new DateTimeFormatterBuilder();
    250         if (ci) {
    251             db = db.parseCaseInsensitive();
    252         }
    253         return db.appendZoneText(style)
    254                  .toFormatter(locale)
    255                  .withDecimalStyle(DecimalStyle.of(locale));
    256     }
    257 
    258 }
    259