// -----------------------------------------------------------------------
// isBefore, isAfter, isEqual
// -----------------------------------------------------------------------
@Test(dataProvider = "calendars")
public void test_datetime_comparisons(Chronology chrono) {
List<ChronoLocalDateTime<?>> dates = new ArrayList<>();
ChronoLocalDateTime<?> date = chrono.date(LocalDate.of(1900, 1, 1)).atTime(LocalTime.MIN);
// Insert dates in order, no duplicates
dates.add(date.minus(100, ChronoUnit.YEARS));
dates.add(date.minus(1, ChronoUnit.YEARS));
dates.add(date.minus(1, ChronoUnit.MONTHS));
dates.add(date.minus(1, ChronoUnit.WEEKS));
dates.add(date.minus(1, ChronoUnit.DAYS));
dates.add(date.minus(1, ChronoUnit.HOURS));
dates.add(date.minus(1, ChronoUnit.MINUTES));
dates.add(date.minus(1, ChronoUnit.SECONDS));
dates.add(date.minus(1, ChronoUnit.NANOS));
dates.add(date);
dates.add(date.plus(1, ChronoUnit.NANOS));
dates.add(date.plus(1, ChronoUnit.SECONDS));
dates.add(date.plus(1, ChronoUnit.MINUTES));
dates.add(date.plus(1, ChronoUnit.HOURS));
dates.add(date.plus(1, ChronoUnit.DAYS));
dates.add(date.plus(1, ChronoUnit.WEEKS));
dates.add(date.plus(1, ChronoUnit.MONTHS));
dates.add(date.plus(1, ChronoUnit.YEARS));
dates.add(date.plus(100, ChronoUnit.YEARS));
// Check these dates against the corresponding dates for every calendar
for (Chronology[] clist : data_of_calendars()) {
List<ChronoLocalDateTime<?>> otherDates = new ArrayList<>();
Chronology chrono2 = clist[0];
for (ChronoLocalDateTime<?> d : dates) {
otherDates.add(chrono2.date(d).atTime(d.toLocalTime()));
}
// Now compare the sequence of original dates with the sequence of converted dates
for (int i = 0; i < dates.size(); i++) {
ChronoLocalDateTime<?> a = dates.get(i);
for (int j = 0; j < otherDates.size(); j++) {
ChronoLocalDateTime<?> b = otherDates.get(j);
int cmp = ChronoLocalDateTime.DATE_TIME_COMPARATOR.compare(a, b);
if (i < j) {
assertTrue(cmp < 0, a + " compare " + b);
assertEquals(a.isBefore(b), true, a + " isBefore " + b);
assertEquals(a.isAfter(b), false, a + " isAfter " + b);
assertEquals(a.isEqual(b), false, a + " isEqual " + b);
} else if (i > j) {
assertTrue(cmp > 0, a + " compare " + b);
assertEquals(a.isBefore(b), false, a + " isBefore " + b);
assertEquals(a.isAfter(b), true, a + " isAfter " + b);
assertEquals(a.isEqual(b), false, a + " isEqual " + b);
} else {
assertTrue(cmp == 0, a + " compare " + b);
assertEquals(a.isBefore(b), false, a + " isBefore " + b);
assertEquals(a.isAfter(b), false, a + " isAfter " + b);
assertEquals(a.isEqual(b), true, a + " isEqual " + b);
}
}
}
}
}
