1 /*
   2  * Copyright (c) 2012, 2013, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27  * Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos
  28  *
  29  * All rights reserved.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions are met:
  33  *
  34  *  * Redistributions of source code must retain the above copyright notice,
  35  *    this list of conditions and the following disclaimer.
  36  *
  37  *  * Redistributions in binary form must reproduce the above copyright notice,
  38  *    this list of conditions and the following disclaimer in the documentation
  39  *    and/or other materials provided with the distribution.
  40  *
  41  *  * Neither the name of JSR-310 nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  46  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  47  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  48  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  49  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  50  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  51  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  52  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  53  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  54  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  55  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  56  */
  57 package tck.java.time.chrono;
  58 
  59 import static java.time.temporal.ChronoField.DAY_OF_MONTH;
  60 import static java.time.temporal.ChronoField.ERA;
  61 import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
  62 import static java.time.temporal.ChronoField.YEAR;
  63 import static java.time.temporal.ChronoField.YEAR_OF_ERA;
  64 import static org.testng.Assert.assertEquals;
  65 import static org.testng.Assert.assertFalse;
  66 import static org.testng.Assert.assertTrue;
  67 import static org.testng.Assert.fail;
  68 
  69 import java.time.Clock;
  70 import java.time.DateTimeException;
  71 import java.time.LocalDate;
  72 import java.time.LocalDateTime;
  73 import java.time.Month;
  74 import java.time.Period;
  75 import java.time.Year;
  76 import java.time.ZoneId;
  77 import java.time.ZoneOffset;
  78 import java.time.chrono.ChronoLocalDate;
  79 import java.time.chrono.Chronology;
  80 import java.time.chrono.Era;
  81 import java.time.chrono.IsoChronology;
  82 import java.time.chrono.JapaneseChronology;
  83 import java.time.chrono.JapaneseDate;
  84 import java.time.chrono.JapaneseEra;
  85 import java.time.chrono.MinguoChronology;
  86 import java.time.chrono.MinguoDate;
  87 import java.time.temporal.ChronoUnit;
  88 import java.time.temporal.TemporalAdjuster;
  89 import java.util.List;
  90 import java.util.Locale;
  91 
  92 import org.testng.Assert;
  93 import org.testng.annotations.DataProvider;
  94 import org.testng.annotations.Test;
  95 
  96 /**
  97  * Test.
  98  */
  99 @Test
 100 public class TCKJapaneseChronology {
 101     private static final int YDIFF_HEISEI = 1988;
 102     private static final int YDIFF_MEIJI = 1867;
 103     private static final int YDIFF_SHOWA = 1925;
 104     private static final int YDIFF_TAISHO = 1911;
 105 
 106     //-----------------------------------------------------------------------
 107     // Chronology.of(String)
 108     //-----------------------------------------------------------------------
 109     @Test
 110     public void test_chrono_byName() {
 111         Chronology c = JapaneseChronology.INSTANCE;
 112         Chronology test = Chronology.of("Japanese");
 113         Assert.assertNotNull(test, "The Japanese calendar could not be found byName");
 114         Assert.assertEquals(test.getId(), "Japanese", "ID mismatch");
 115         Assert.assertEquals(test.getCalendarType(), "japanese", "Type mismatch");
 116         Assert.assertEquals(test, c);
 117     }
 118 
 119     //-----------------------------------------------------------------------
 120     // Chronology.ofLocale(Locale)
 121     //-----------------------------------------------------------------------
 122     @Test
 123     public void test_chrono_byLocale_fullTag_japaneseCalendarFromJapan() {
 124         Chronology test = Chronology.ofLocale(Locale.forLanguageTag("ja-JP-u-ca-japanese"));
 125         Assert.assertEquals(test.getId(), "Japanese");
 126         Assert.assertEquals(test, JapaneseChronology.INSTANCE);
 127     }
 128 
 129     @Test
 130     public void test_chrono_byLocale_fullTag_japaneseCalendarFromElsewhere() {
 131         Chronology test = Chronology.ofLocale(Locale.forLanguageTag("en-US-u-ca-japanese"));
 132         Assert.assertEquals(test.getId(), "Japanese");
 133         Assert.assertEquals(test, JapaneseChronology.INSTANCE);
 134     }
 135 
 136     @Test
 137     public void test_chrono_byLocale_oldJP_noVariant() {
 138         Chronology test = Chronology.ofLocale(new Locale("ja", "JP"));
 139         Assert.assertEquals(test.getId(), "ISO");
 140         Assert.assertEquals(test, IsoChronology.INSTANCE);
 141     }
 142 
 143     @Test
 144     public void test_chrono_byLocale_oldJP_variant() {
 145         Chronology test = Chronology.ofLocale(new Locale("ja", "JP", "JP"));
 146         Assert.assertEquals(test.getId(), "Japanese");
 147         Assert.assertEquals(test, JapaneseChronology.INSTANCE);
 148     }
 149 
 150     @Test
 151     public void test_chrono_byLocale_iso() {
 152         Assert.assertEquals(Chronology.ofLocale(new Locale("ja", "JP")).getId(), "ISO");
 153         Assert.assertEquals(Chronology.ofLocale(Locale.forLanguageTag("ja-JP")).getId(), "ISO");
 154         Assert.assertEquals(Chronology.ofLocale(Locale.forLanguageTag("ja-JP-JP")).getId(), "ISO");
 155     }
 156 
 157     //-----------------------------------------------------------------------
 158     // creation, toLocalDate()
 159     //-----------------------------------------------------------------------
 160     @DataProvider(name="samples")
 161     Object[][] data_samples() {
 162         return new Object[][] {
 163             {JapaneseChronology.INSTANCE.date(1, 1, 1), LocalDate.of(1, 1, 1)},
 164             {JapaneseChronology.INSTANCE.date(1, 1, 2), LocalDate.of(1, 1, 2)},
 165             {JapaneseChronology.INSTANCE.date(1, 1, 3), LocalDate.of(1, 1, 3)},
 166 
 167             {JapaneseChronology.INSTANCE.date(2, 1, 1), LocalDate.of(2, 1, 1)},
 168             {JapaneseChronology.INSTANCE.date(3, 1, 1), LocalDate.of(3, 1, 1)},
 169             {JapaneseChronology.INSTANCE.date(3, 12, 6), LocalDate.of(3, 12, 6)},
 170             {JapaneseChronology.INSTANCE.date(4, 1, 1), LocalDate.of(4, 1, 1)},
 171             {JapaneseChronology.INSTANCE.date(4, 7, 3), LocalDate.of(4, 7, 3)},
 172             {JapaneseChronology.INSTANCE.date(4, 7, 4), LocalDate.of(4, 7, 4)},
 173             {JapaneseChronology.INSTANCE.date(5, 1, 1), LocalDate.of(5, 1, 1)},
 174             {JapaneseChronology.INSTANCE.date(1662, 3, 3), LocalDate.of(1662, 3, 3)},
 175             {JapaneseChronology.INSTANCE.date(1728, 10, 28), LocalDate.of(1728, 10, 28)},
 176             {JapaneseChronology.INSTANCE.date(1728, 10, 29), LocalDate.of(1728, 10, 29)},
 177 
 178             {JapaneseChronology.INSTANCE.date(JapaneseEra.HEISEI, 1996 - YDIFF_HEISEI, 2, 29), LocalDate.of(1996, 2, 29)},
 179             {JapaneseChronology.INSTANCE.date(JapaneseEra.HEISEI, 2000 - YDIFF_HEISEI, 2, 29), LocalDate.of(2000, 2, 29)},
 180             {JapaneseChronology.INSTANCE.date(JapaneseEra.MEIJI, 1868 - YDIFF_MEIJI, 2, 29), LocalDate.of(1868, 2, 29)},
 181             {JapaneseChronology.INSTANCE.date(JapaneseEra.SHOWA, 1928 - YDIFF_SHOWA, 12, 25), LocalDate.of(1928, 12, 25)},
 182             {JapaneseChronology.INSTANCE.date(JapaneseEra.TAISHO, 1912 - YDIFF_TAISHO, 7, 30), LocalDate.of(1912, 7, 30)},
 183 
 184             {JapaneseChronology.INSTANCE.dateYearDay(1996, 60), LocalDate.of(1996, 2, 29)},
 185             {JapaneseChronology.INSTANCE.dateYearDay(1868, 60), LocalDate.of(1868, 2, 29)},
 186             {JapaneseChronology.INSTANCE.dateYearDay(1928, 60), LocalDate.of(1928, 2, 29)},
 187             {JapaneseChronology.INSTANCE.dateYearDay(1912, 60), LocalDate.of(1912, 2, 29)},
 188 
 189             {JapaneseDate.ofYearDay(1996, 60), LocalDate.of(1996, 2, 29)},
 190             {JapaneseDate.ofYearDay(1868, 60), LocalDate.of(1868, 2, 29)},
 191             {JapaneseDate.ofYearDay(1928, 60), LocalDate.of(1928, 2, 29)},
 192             {JapaneseDate.ofYearDay(1912, 60), LocalDate.of(1912, 2, 29)},
 193 
 194             {JapaneseChronology.INSTANCE.dateYearDay(JapaneseEra.HEISEI, 1996 - YDIFF_HEISEI, 60), LocalDate.of(1996, 2, 29)},
 195             {JapaneseChronology.INSTANCE.dateYearDay(JapaneseEra.MEIJI, 1868 - YDIFF_MEIJI, 60), LocalDate.of(1868, 2, 29)},
 196             {JapaneseChronology.INSTANCE.dateYearDay(JapaneseEra.SHOWA, 1928 - YDIFF_SHOWA, 60), LocalDate.of(1928, 2, 29)},
 197 //          {JapaneseChronology.INSTANCE.dateYearDay(JapaneseEra.TAISHO, 1916 - YDIFF_TAISHO, 60), LocalDate.of(1912, 2, 29)},
 198         };
 199     }
 200 
 201     @Test(dataProvider="samples")
 202     public void test_toLocalDate(JapaneseDate jdate, LocalDate iso) {
 203         assertEquals(LocalDate.from(jdate), iso);
 204     }
 205 
 206     @Test(dataProvider="samples")
 207     public void test_fromCalendrical(JapaneseDate jdate, LocalDate iso) {
 208         assertEquals(JapaneseChronology.INSTANCE.date(iso), jdate);
 209     }
 210 
 211     @Test
 212     public void test_dateNow(){
 213         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseDate.now()) ;
 214         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseDate.now(ZoneId.systemDefault())) ;
 215         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseDate.now(Clock.systemDefaultZone())) ;
 216         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseDate.now(Clock.systemDefaultZone().getZone())) ;
 217 
 218         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseChronology.INSTANCE.dateNow(ZoneId.systemDefault())) ;
 219         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseChronology.INSTANCE.dateNow(Clock.systemDefaultZone())) ;
 220         assertEquals(JapaneseChronology.INSTANCE.dateNow(), JapaneseChronology.INSTANCE.dateNow(Clock.systemDefaultZone().getZone())) ;
 221 
 222         ZoneId zoneId = ZoneId.of("Europe/Paris");
 223         assertEquals(JapaneseChronology.INSTANCE.dateNow(zoneId), JapaneseChronology.INSTANCE.dateNow(Clock.system(zoneId))) ;
 224         assertEquals(JapaneseChronology.INSTANCE.dateNow(zoneId), JapaneseChronology.INSTANCE.dateNow(Clock.system(zoneId).getZone())) ;
 225         assertEquals(JapaneseChronology.INSTANCE.dateNow(zoneId), JapaneseDate.now(Clock.system(zoneId))) ;
 226         assertEquals(JapaneseChronology.INSTANCE.dateNow(zoneId), JapaneseDate.now(Clock.system(zoneId).getZone())) ;
 227 
 228         assertEquals(JapaneseChronology.INSTANCE.dateNow(ZoneId.of(ZoneOffset.UTC.getId())), JapaneseChronology.INSTANCE.dateNow(Clock.systemUTC())) ;
 229     }
 230 
 231     @DataProvider(name="badDates")
 232     Object[][] data_badDates() {
 233         return new Object[][] {
 234             {1728, 0, 0},
 235 
 236             {1728, -1, 1},
 237             {1728, 0, 1},
 238             {1728, 14, 1},
 239             {1728, 15, 1},
 240 
 241             {1728, 1, -1},
 242             {1728, 1, 0},
 243             {1728, 1, 32},
 244 
 245             {1728, 12, -1},
 246             {1728, 12, 0},
 247             {1728, 12, 32},
 248 
 249             {1725, 2, 29},
 250             {500, 2, 29},
 251             {2100, 2, 29},
 252         };
 253     }
 254 
 255     @Test(dataProvider="badDates", expectedExceptions=DateTimeException.class)
 256     public void test_badDates(int year, int month, int dom) {
 257         JapaneseChronology.INSTANCE.date(year, month, dom);
 258     }
 259 
 260     //-----------------------------------------------------------------------
 261     // prolepticYear() and is LeapYear()
 262     //-----------------------------------------------------------------------
 263     @DataProvider(name="prolepticYear")
 264     Object[][] data_prolepticYear() {
 265         return new Object[][] {
 266                 {2, JapaneseEra.HEISEI, 1, 1 + YDIFF_HEISEI, false},
 267                 {2, JapaneseEra.HEISEI, 100, 100 + YDIFF_HEISEI, true},
 268 
 269                 {-1, JapaneseEra.MEIJI, 1, 1 + YDIFF_MEIJI, true},
 270                 {-1, JapaneseEra.MEIJI, 4, 4 + YDIFF_MEIJI, false},
 271 
 272                 {1, JapaneseEra.SHOWA, 1, 1 + YDIFF_SHOWA, false},
 273                 {1, JapaneseEra.SHOWA, 7, 7 + YDIFF_SHOWA, true},
 274 
 275                 {0, JapaneseEra.TAISHO, 1, 1 + YDIFF_TAISHO, true},
 276                 {0, JapaneseEra.TAISHO, 4, 4 + YDIFF_TAISHO, false},
 277         };
 278     }
 279 
 280     @Test(dataProvider="prolepticYear")
 281     public void test_prolepticYear(int eraValue, Era  era, int yearOfEra, int expectedProlepticYear, boolean isLeapYear) {
 282         Era eraObj = JapaneseChronology.INSTANCE.eraOf(eraValue) ;
 283         assertTrue(JapaneseChronology.INSTANCE.eras().contains(eraObj));
 284         assertEquals(eraObj, era);
 285         assertEquals(JapaneseChronology.INSTANCE.prolepticYear(era, yearOfEra), expectedProlepticYear);
 286         assertEquals(JapaneseChronology.INSTANCE.isLeapYear(expectedProlepticYear), isLeapYear) ;
 287         assertEquals(JapaneseChronology.INSTANCE.isLeapYear(expectedProlepticYear), Year.of(expectedProlepticYear).isLeap()) ;
 288     }
 289 
 290     @DataProvider(name="prolepticYearError")
 291     Object[][] data_prolepticYearError() {
 292         return new Object[][] {
 293                 {JapaneseEra.MEIJI, 100},
 294                 {JapaneseEra.MEIJI, 0},
 295                 {JapaneseEra.MEIJI, -10},
 296 
 297                 {JapaneseEra.SHOWA, 100},
 298                 {JapaneseEra.SHOWA, 0},
 299                 {JapaneseEra.SHOWA, -10},
 300 
 301                 {JapaneseEra.TAISHO, 100},
 302                 {JapaneseEra.TAISHO, 0},
 303                 {JapaneseEra.TAISHO, -10},
 304         };
 305     }
 306 
 307     @Test(dataProvider="prolepticYearError", expectedExceptions=DateTimeException.class)
 308     public void test_prolepticYearError(Era era, int yearOfEra) {
 309         JapaneseChronology.INSTANCE.prolepticYear(era, yearOfEra);
 310     }
 311 
 312     //-----------------------------------------------------------------------
 313     // Bad Era for Chronology.date(era,...) and Chronology.prolepticYear(Era,...)
 314     //-----------------------------------------------------------------------
 315     @Test
 316     public void test_InvalidEras() {
 317         // Verify that the eras from every other Chronology are invalid
 318         for (Chronology chrono : Chronology.getAvailableChronologies()) {
 319             if (chrono instanceof JapaneseChronology) {
 320                 continue;
 321             }
 322             List<Era> eras = chrono.eras();
 323             for (Era era : eras) {
 324                 try {
 325                     ChronoLocalDate date = JapaneseChronology.INSTANCE.date(era, 1, 1, 1);
 326                     fail("JapaneseChronology.date did not throw ClassCastException for Era: " + era);
 327                 } catch (ClassCastException cex) {
 328                     ; // ignore expected exception
 329                 }
 330 
 331                 try {
 332                     @SuppressWarnings("unused")
 333                     JapaneseDate jdate = JapaneseDate.of(era, 1, 1, 1);
 334                     fail("JapaneseDate.of did not throw ClassCastException for Era: " + era);
 335                 } catch (ClassCastException cex) {
 336                     ; // ignore expected exception
 337                 }
 338 
 339                 try {
 340                     @SuppressWarnings("unused")
 341                     int year = JapaneseChronology.INSTANCE.prolepticYear(era, 1);
 342                     fail("JapaneseChronology.prolepticYear did not throw ClassCastException for Era: " + era);
 343                 } catch (ClassCastException cex) {
 344                     ; // ignore expected exception
 345                 }
 346 
 347             }
 348         }
 349     }
 350 
 351     //-----------------------------------------------------------------------
 352     // get(TemporalField)
 353     //-----------------------------------------------------------------------
 354     @Test
 355     public void test_getLong() {
 356         JapaneseDate base = JapaneseChronology.INSTANCE.date(JapaneseEra.SHOWA, 63, 6, 30);
 357         assertEquals(base.getLong(ERA), JapaneseEra.SHOWA.getValue());
 358         assertEquals(base.getLong(YEAR), 1988L);
 359         assertEquals(base.getLong(YEAR_OF_ERA), 63L);
 360         assertEquals(base.getLong(MONTH_OF_YEAR), 6L);
 361         assertEquals(base.getLong(DAY_OF_MONTH), 30L);
 362     }
 363 
 364     //-----------------------------------------------------------------------
 365     // with(TemporalField, long)
 366     //-----------------------------------------------------------------------
 367     @Test
 368     public void test_with_TemporalField_long() {
 369         JapaneseDate base = JapaneseChronology.INSTANCE.date(JapaneseEra.SHOWA, 63, 6, 30);
 370         JapaneseDate test = base.with(YEAR, 1987);
 371         assertEquals(test, JapaneseChronology.INSTANCE.date(JapaneseEra.SHOWA, 62, 6, 30));
 372 
 373         test = test.with(YEAR_OF_ERA, 2);
 374         assertEquals(test, JapaneseChronology.INSTANCE.date(JapaneseEra.SHOWA, 2, 6, 30));
 375 
 376         test = test.with(ERA, JapaneseEra.HEISEI.getValue());
 377         assertEquals(test, JapaneseChronology.INSTANCE.date(JapaneseEra.HEISEI, 2, 6, 30));
 378 
 379         test = test.with(MONTH_OF_YEAR, 3);
 380         assertEquals(test, JapaneseChronology.INSTANCE.date(JapaneseEra.HEISEI, 2, 3, 30));
 381 
 382         test = test.with(DAY_OF_MONTH, 4);
 383         assertEquals(test, JapaneseChronology.INSTANCE.date(JapaneseEra.HEISEI, 2, 3, 4));
 384     }
 385 
 386     //-----------------------------------------------------------------------
 387     // with(WithAdjuster)
 388     //-----------------------------------------------------------------------
 389     @Test
 390     public void test_adjust1() {
 391         JapaneseDate base = JapaneseChronology.INSTANCE.date(1728, 10, 29);
 392         JapaneseDate test = base.with(TemporalAdjuster.lastDayOfMonth());
 393         assertEquals(test, JapaneseChronology.INSTANCE.date(1728, 10, 31));
 394     }
 395 
 396     @Test
 397     public void test_adjust2() {
 398         JapaneseDate base = JapaneseChronology.INSTANCE.date(1728, 12, 2);
 399         JapaneseDate test = base.with(TemporalAdjuster.lastDayOfMonth());
 400         assertEquals(test, JapaneseChronology.INSTANCE.date(1728, 12, 31));
 401     }
 402 
 403     //-----------------------------------------------------------------------
 404     // JapaneseDate.with(Local*)
 405     //-----------------------------------------------------------------------
 406     @Test
 407     public void test_adjust_toLocalDate() {
 408         JapaneseDate jdate = JapaneseChronology.INSTANCE.date(1726, 1, 4);
 409         JapaneseDate test = jdate.with(LocalDate.of(2012, 7, 6));
 410         assertEquals(test, JapaneseChronology.INSTANCE.date(2012, 7, 6));
 411     }
 412 
 413     @Test(expectedExceptions=DateTimeException.class)
 414     public void test_adjust_toMonth() {
 415         JapaneseDate jdate = JapaneseChronology.INSTANCE.date(1726, 1, 4);
 416         jdate.with(Month.APRIL);
 417     }
 418 
 419     //-----------------------------------------------------------------------
 420     // LocalDate.with(JapaneseDate)
 421     //-----------------------------------------------------------------------
 422     @Test
 423     public void test_LocalDate_adjustToJapaneseDate() {
 424         JapaneseDate jdate = JapaneseChronology.INSTANCE.date(1728, 10, 29);
 425         LocalDate test = LocalDate.MIN.with(jdate);
 426         assertEquals(test, LocalDate.of(1728, 10, 29));
 427     }
 428 
 429     @Test
 430     public void test_LocalDateTime_adjustToJapaneseDate() {
 431         JapaneseDate jdate = JapaneseChronology.INSTANCE.date(1728, 10, 29);
 432         LocalDateTime test = LocalDateTime.MIN.with(jdate);
 433         assertEquals(test, LocalDateTime.of(1728, 10, 29, 0, 0));
 434     }
 435 
 436     //-----------------------------------------------------------------------
 437     // Check Japanese Eras
 438     //-----------------------------------------------------------------------
 439     @DataProvider(name="japaneseEras")
 440     Object[][] data_japanseseEras() {
 441         return new Object[][] {
 442             { JapaneseEra.SEIREKI, -999, "Seireki"},
 443             { JapaneseEra.MEIJI, -1, "Meiji"},
 444             { JapaneseEra.TAISHO, 0, "Taisho"},
 445             { JapaneseEra.SHOWA, 1, "Showa"},
 446             { JapaneseEra.HEISEI, 2, "Heisei"},
 447         };
 448     }
 449 
 450     @Test(dataProvider="japaneseEras")
 451     public void test_Japanese_Eras(Era era, int eraValue, String name) {
 452         assertEquals(era.getValue(), eraValue, "EraValue");
 453         assertEquals(era.toString(), name, "Era Name");
 454         assertEquals(era, JapaneseChronology.INSTANCE.eraOf(eraValue), "JapaneseChronology.eraOf()");
 455         List<Era> eras = JapaneseChronology.INSTANCE.eras();
 456         assertTrue(eras.contains(era), "Era is not present in JapaneseChronology.INSTANCE.eras()");
 457     }
 458 
 459     @Test
 460     public void test_Japanese_badEras() {
 461         int badEras[] = {-1000, -998, -997, -2, 3, 4, 1000};
 462         for (int badEra : badEras) {
 463             try {
 464                 Era era = JapaneseChronology.INSTANCE.eraOf(badEra);
 465                 fail("JapaneseChronology.eraOf returned " + era + " + for invalid eraValue " + badEra);
 466             } catch (DateTimeException ex) {
 467                 // ignore expected exception
 468             }
 469         }
 470     }
 471 
 472     @Test(dataProvider="japaneseEras")
 473     public void test_JapaneseEra_singletons(Era expectedEra, int eraValue, String name) {
 474         JapaneseEra actualEra = JapaneseEra.valueOf(name);
 475         assertEquals(actualEra, expectedEra, "JapaneseEra.valueOf(name)");
 476 
 477         actualEra = JapaneseEra.of(eraValue);
 478         assertEquals(actualEra, expectedEra, "JapaneseEra.of(value)");
 479 
 480         String string = actualEra.toString();
 481         assertEquals(string, name, "JapaneseEra.toString()");
 482     }
 483 
 484     @Test
 485     public void test_JapaneseEra_values() {
 486         JapaneseEra[] actualEras = JapaneseEra.values();
 487         Object[][] erasInfo = data_japanseseEras();
 488         assertEquals(actualEras.length, erasInfo.length, "Wrong number of Eras");
 489 
 490         for (int i = 0; i < erasInfo.length; i++) {
 491             Object[] eraInfo = erasInfo[i];
 492             assertEquals(actualEras[i], eraInfo[0], "Singleton mismatch");
 493         }
 494     }
 495 
 496     @Test
 497     public void test_JapaneseChronology_eras() {
 498         List<Era> actualEras = JapaneseChronology.INSTANCE.eras();
 499         Object[][] erasInfo = data_japanseseEras();
 500         assertEquals(actualEras.size(), erasInfo.length, "Wrong number of Eras");
 501 
 502         for (int i = 0; i < erasInfo.length; i++) {
 503             Object[] eraInfo = erasInfo[i];
 504             assertEquals(actualEras.get(i), eraInfo[0], "Singleton mismatch");
 505         }
 506     }
 507 
 508     //-----------------------------------------------------------------------
 509     // PeriodUntil()
 510     //-----------------------------------------------------------------------
 511     @Test
 512     public void test_periodUntilDate() {
 513         JapaneseDate mdate1 = JapaneseDate.of(1970, 1, 1);
 514         JapaneseDate mdate2 = JapaneseDate.of(1971, 2, 2);
 515         Period period = mdate1.periodUntil(mdate2);
 516         assertEquals(period, Period.of(1, 1, 1));
 517     }
 518 
 519     @Test
 520     public void test_periodUntilUnit() {
 521         JapaneseDate mdate1 = JapaneseDate.of(1970, 1, 1);
 522         JapaneseDate mdate2 = JapaneseDate.of(1971, 2, 2);
 523         long months = mdate1.periodUntil(mdate2, ChronoUnit.MONTHS);
 524         assertEquals(months, 13);
 525     }
 526 
 527     @Test
 528     public void test_periodUntilDiffChrono() {
 529         JapaneseDate mdate1 = JapaneseDate.of(1970, 1, 1);
 530         JapaneseDate mdate2 = JapaneseDate.of(1971, 2, 2);
 531         MinguoDate ldate2 = MinguoChronology.INSTANCE.date(mdate2);
 532         Period period = mdate1.periodUntil(ldate2);
 533         assertEquals(period, Period.of(1, 1, 1));
 534     }
 535 
 536     //-----------------------------------------------------------------------
 537     // toString()
 538     //-----------------------------------------------------------------------
 539     @DataProvider(name="toString")
 540     Object[][] data_toString() {
 541         return new Object[][] {
 542             {JapaneseChronology.INSTANCE.date(0001,  1,  1), "Japanese 0001-01-01"},
 543             {JapaneseChronology.INSTANCE.date(1728, 10, 28), "Japanese 1728-10-28"},
 544             {JapaneseChronology.INSTANCE.date(1728, 10, 29), "Japanese 1728-10-29"},
 545             {JapaneseChronology.INSTANCE.date(1727, 12,  5), "Japanese 1727-12-05"},
 546             {JapaneseChronology.INSTANCE.date(1727, 12,  6), "Japanese 1727-12-06"},
 547             {JapaneseChronology.INSTANCE.date(1868,  9,  8), "Japanese Meiji 1-09-08"},
 548             {JapaneseChronology.INSTANCE.date(1912,  7, 29), "Japanese Meiji 45-07-29"},
 549             {JapaneseChronology.INSTANCE.date(1912,  7, 30), "Japanese Taisho 1-07-30"},
 550             {JapaneseChronology.INSTANCE.date(1926, 12, 24), "Japanese Taisho 15-12-24"},
 551             {JapaneseChronology.INSTANCE.date(1926, 12, 25), "Japanese Showa 1-12-25"},
 552             {JapaneseChronology.INSTANCE.date(1989,  1,  7), "Japanese Showa 64-01-07"},
 553             {JapaneseChronology.INSTANCE.date(1989,  1,  8), "Japanese Heisei 1-01-08"},
 554             {JapaneseChronology.INSTANCE.date(2012, 12,  6), "Japanese Heisei 24-12-06"},
 555         };
 556     }
 557 
 558     @Test(dataProvider="toString")
 559     public void test_toString(JapaneseDate jdate, String expected) {
 560         assertEquals(jdate.toString(), expected);
 561     }
 562 
 563     //-----------------------------------------------------------------------
 564     // equals()
 565     //-----------------------------------------------------------------------
 566     @Test
 567     public void test_equals_true() {
 568         assertTrue(JapaneseChronology.INSTANCE.equals(JapaneseChronology.INSTANCE));
 569     }
 570 
 571     @Test
 572     public void test_equals_false() {
 573         assertFalse(JapaneseChronology.INSTANCE.equals(IsoChronology.INSTANCE));
 574     }
 575 
 576 }