test/java/time/test/java/time/chrono/TestExampleCode.java

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@@ -52,130 +52,114 @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-package test.java.time.temporal;
 
-import static java.time.temporal.ChronoField.DAY_OF_MONTH;
-import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
-import static java.time.temporal.ChronoField.YEAR;
-import static java.time.temporal.ChronoField.YEAR_OF_ERA;
+package test.java.time.chrono;
 
-import static org.testng.Assert.assertEquals;
-
-import java.util.Calendar;
-import java.util.GregorianCalendar;
-import java.util.TimeZone;
-
-import java.time.DayOfWeek;
-import java.time.LocalDate;
+import java.time.LocalTime;
+import java.time.chrono.HijrahDate;
+import java.time.chrono.ThaiBuddhistDate;
+import java.time.chrono.ChronoLocalDateTime;
+import java.time.chrono.ChronoLocalDate;
+import java.time.chrono.Chronology;
+import java.time.temporal.ChronoField;
 import java.time.temporal.ChronoUnit;
-import java.time.temporal.ISOChrono;
-import java.time.temporal.WeekFields;
-import java.time.temporal.ChronoLocalDate;
+import java.util.Set;
 
-import org.testng.annotations.DataProvider;
 import org.testng.annotations.Test;
 
 /**
- * Test.
+ * Test case verify that the example code in the package-info.java compiles
+ * and runs.
  */
-@Test
-public class TestISOChronoImpl {
+public class TestExampleCode {
 
-    @DataProvider(name = "RangeVersusCalendar")
-    Object[][] provider_rangeVersusCalendar() {
-        return new Object[][]{
-            {LocalDate.of(1900, 1, 4), LocalDate.of(2100, 1, 8)},
-            //{LocalDate.of(1583, 1, 1), LocalDate.of(2100, 1, 1)},
-        };
-    }
-
-    //-----------------------------------------------------------------------
-    // Verify  ISO Calendar matches java.util.Calendar for range
-    //-----------------------------------------------------------------------
-    @Test(groups = {"implementation"}, dataProvider = "RangeVersusCalendar")
-    public void test_ISOChrono_vsCalendar(LocalDate isoStartDate, LocalDate isoEndDate) {
-        GregorianCalendar cal = new GregorianCalendar();
-        assertEquals(cal.getCalendarType(), "gregory", "Unexpected calendar type");
-        ChronoLocalDate<ISOChrono> isoDate = ISOChrono.INSTANCE.date(isoStartDate);
-
-        cal.setTimeZone(TimeZone.getTimeZone("GMT+00"));
-        cal.set(Calendar.YEAR, isoDate.get(YEAR));
-        cal.set(Calendar.MONTH, isoDate.get(MONTH_OF_YEAR) - 1);
-        cal.set(Calendar.DAY_OF_MONTH, isoDate.get(DAY_OF_MONTH));
-
-        while (isoDate.isBefore(isoEndDate)) {
-            assertEquals(isoDate.get(DAY_OF_MONTH), cal.get(Calendar.DAY_OF_MONTH), "Day mismatch in " + isoDate + ";  cal: " + cal);
-            assertEquals(isoDate.get(MONTH_OF_YEAR), cal.get(Calendar.MONTH) + 1, "Month mismatch in " + isoDate);
-            assertEquals(isoDate.get(YEAR_OF_ERA), cal.get(Calendar.YEAR), "Year mismatch in " + isoDate);
-
-            isoDate = isoDate.plus(1, ChronoUnit.DAYS);
-            cal.add(Calendar.DAY_OF_MONTH, 1);
-        }
-    }
-
-    //-----------------------------------------------------------------------
-    // Verify  ISO Calendar matches java.util.Calendar
-    // DayOfWeek, WeekOfMonth, WeekOfYear for range
-    //-----------------------------------------------------------------------
-    @Test(groups = {"implementation"}, dataProvider = "RangeVersusCalendar")
-    public void test_DayOfWeek_ISOChrono_vsCalendar(LocalDate isoStartDate, LocalDate isoEndDate) {
-        GregorianCalendar cal = new GregorianCalendar();
-        assertEquals(cal.getCalendarType(), "gregory", "Unexpected calendar type");
-        ChronoLocalDate<ISOChrono> isoDate = ISOChrono.INSTANCE.date(isoStartDate);
-
-        for (DayOfWeek firstDayOfWeek : DayOfWeek.values()) {
-            for (int minDays = 1; minDays <= 7; minDays++) {
-                WeekFields weekDef = WeekFields.of(firstDayOfWeek, minDays);
-                cal.setFirstDayOfWeek(Math.floorMod(firstDayOfWeek.getValue(), 7) + 1);
-                cal.setMinimalDaysInFirstWeek(minDays);
-
-                cal.setTimeZone(TimeZone.getTimeZone("GMT+00"));
-                cal.set(Calendar.YEAR, isoDate.get(YEAR));
-                cal.set(Calendar.MONTH, isoDate.get(MONTH_OF_YEAR) - 1);
-                cal.set(Calendar.DAY_OF_MONTH, isoDate.get(DAY_OF_MONTH));
-
-                while (isoDate.isBefore(isoEndDate)) {
-                    assertEquals(isoDate.get(DAY_OF_MONTH), cal.get(Calendar.DAY_OF_MONTH), "Day mismatch in " + isoDate + ";  cal: " + cal);
-                    assertEquals(isoDate.get(MONTH_OF_YEAR), cal.get(Calendar.MONTH) + 1, "Month mismatch in " + isoDate);
-                    assertEquals(isoDate.get(YEAR_OF_ERA), cal.get(Calendar.YEAR), "Year mismatch in " + isoDate);
-                    int jDOW = Math.floorMod(cal.get(Calendar.DAY_OF_WEEK) - 2, 7) + 1;
-                    int isoDOW = isoDate.get(weekDef.dayOfWeek());
-                    if (jDOW != isoDOW) {
-                        System.err.printf(" DOW vs Calendar jdow: %s, isoDate(DOW): %s, isoDate: %s, WeekDef: %s%n", jDOW, isoDOW, isoDate, weekDef);
-                    }
-                    assertEquals(jDOW, isoDOW, "Calendar DayOfWeek does not match ISO DayOfWeek");
-
-                    int jweekOfMonth = cal.get(Calendar.WEEK_OF_MONTH);
-                    int isoWeekOfMonth = isoDate.get(weekDef.weekOfMonth());
-                    if (jweekOfMonth != isoWeekOfMonth) {
-                        System.err.printf(" WeekOfMonth jWeekOfMonth: %s, isoWeekOfMonth: %s,  isoDate: %s, %s%n",
-                                jweekOfMonth, isoWeekOfMonth, isoDate, weekDef);
-                    }
-                    assertEquals(jweekOfMonth, isoWeekOfMonth, "Calendar WeekOfMonth does not match ISO WeekOfMonth");
-
-                    int jweekOfYear = cal.get(Calendar.WEEK_OF_YEAR);
-                    int isoWeekOfYear = isoDate.get(weekDef.weekOfYear());
-                    if (jweekOfYear != isoWeekOfYear) {
-                        // TBD: Issue #186 Remove misleading output pending resolution
-                        // System.err.printf(" Mismatch WeekOfYear jweekOfYear: %s, isoWeekOfYear: %s, isoDate: %s, WeekDef: %s%n", jweekOfYear, isoWeekOfYear, isoDate, weekDef);
+    @Test
+    public void test_chronoPackageExample() {
+        // Print the Thai Buddhist date
+        ChronoLocalDate<?> now1 = Chronology.of("ThaiBuddhist").dateNow();
+        int day = now1.get(ChronoField.DAY_OF_MONTH);
+        int dow = now1.get(ChronoField.DAY_OF_WEEK);
+        int month = now1.get(ChronoField.MONTH_OF_YEAR);
+        int year = now1.get(ChronoField.YEAR);
+        System.out.printf("  Today is %s %s %d-%s-%d%n", now1.getChronology().getId(),
+                dow, day, month, year);
+
+        // Enumerate the list of available calendars and print today for each
+        Set<Chronology> chronos = Chronology.getAvailableChronologies();
+        for (Chronology chrono : chronos) {
+            ChronoLocalDate<?> date = chrono.dateNow();
+            System.out.printf("   %20s: %s%n", chrono.getId(), date.toString());
+        }
+
+        // Print today's date and the last day of the year for the Thai Buddhist Calendar.
+        ChronoLocalDate<?> first = now1
+                .with(ChronoField.DAY_OF_MONTH, 1)
+                .with(ChronoField.MONTH_OF_YEAR, 1);
+        ChronoLocalDate<?> last = first
+                .plus(1, ChronoUnit.YEARS)
+                .minus(1, ChronoUnit.DAYS);
+        System.out.printf("  %s: 1st of year: %s; end of year: %s%n", last.getChronology().getId(),
+                first, last);
+    }
+
+    @Test
+    public void test_calendarPackageExample() {
+
+        // Enumerate the list of available calendars and print today for each
+        Set<Chronology> chronos = Chronology.getAvailableChronologies();
+        for (Chronology chrono : chronos) {
+            ChronoLocalDate<?> date = chrono.dateNow();
+            System.out.printf("   %20s: %s%n", chrono.getId(), date.toString());
+        }
+
+        // Print the Thai Buddhist date
+        ThaiBuddhistDate now1 = ThaiBuddhistDate.now();
+        int day = now1.get(ChronoField.DAY_OF_MONTH);
+        int dow = now1.get(ChronoField.DAY_OF_WEEK);
+        int month = now1.get(ChronoField.MONTH_OF_YEAR);
+        int year = now1.get(ChronoField.YEAR);
+        System.out.printf("  Today is %s %s %d-%s-%d%n", now1.getChronology().getId(),
+                dow, day, month, year);
+
+        // Print today's date and the last day of the year for the Thai Buddhist Calendar.
+        ThaiBuddhistDate first = now1
+                .with(ChronoField.DAY_OF_MONTH, 1)
+                .with(ChronoField.MONTH_OF_YEAR, 1);
+        ThaiBuddhistDate last = first
+                .plus(1, ChronoUnit.YEARS)
+                .minus(1, ChronoUnit.DAYS);
+        System.out.printf("  %s: 1st of year: %s; end of year: %s%n", last.getChronology().getId(),
+                first, last);
+    }
+
+    @Test
+    public void test_library() {
+        HijrahDate date = HijrahDate.now();
+        HijrahDate next = next(date);
+        ChronoLocalDateTime<HijrahDate> noonTomorrow = tomorrowNoon(date);
+        System.out.printf("  now: %s, noon tomorrow: %s%n", date, noonTomorrow);
                     }
-                    //assertEquals(jweekOfYear, isoWeekOfYear,  "Calendar WeekOfYear does not match ISO WeekOfYear");
 
-                    isoDate = isoDate.plus(1, ChronoUnit.DAYS);
-                    cal.add(Calendar.DAY_OF_MONTH, 1);
-                }
-            }
-        }
+    /**
+     * Simple function based on a date, returning a ChronoDate of the same type.
+     * @param <D> a parameterized ChronoLocalDate
+     * @param date a specific date extending ChronoLocalDate
+     * @return a new date in the same chronology.
+     */
+    private <D extends ChronoLocalDate<D>> D next(D date) {
+        return date.plus(1, ChronoUnit.DAYS);
     }
 
     /**
-     * Return the ISO Day of Week from a java.util.Calendr DAY_OF_WEEK.
-     * @param the java.util.Calendar day of week (1=Sunday, 7=Saturday)
-     * @return the ISO DayOfWeek
+     * Simple function based on a date, returning a ChronoLocalDateTime of the
+     * same chronology.
+     * @param <D> a parameterized ChronoLocalDate
+     * @param date a specific date extending ChronoLocalDate
+     * @return a [@code ChronoLocalDateTime<D>} using the change chronology.
      */
-    private DayOfWeek toISOfromCalendarDOW(int i) {
-        return DayOfWeek.of(Math.floorMod(i - 2, 7) + 1);
+    private <D extends ChronoLocalDate<D>> ChronoLocalDateTime<D> tomorrowNoon(D date) {
+        return date.plus(1, ChronoUnit.DAYS).atTime(LocalTime.of(12, 0));
     }
 }