// Test that the functions (restricted to the date interval we care about)
// convert back and forth, and that iterating over days covers the same
// sequence as incrementing a LocalDate.
public void testStuff() throws Exception {
long min = DaysSinceEpoch.fromLocalDate(new LocalDate(2008, 1, 1));
long max = DaysSinceEpoch.fromLocalDate(new LocalDate(2013, 1, 1));
assertTrue(min < max);
LocalDate expected = new LocalDate(2008, 1, 1);
for (long i = min; i <= max; i++) {
LocalDate date = DaysSinceEpoch.toLocalDate(i);
assertEquals(expected, date);
assertEquals(i, DaysSinceEpoch.fromLocalDate(date));
expected = expected.plusDays(1);
assertFalse(date.equals(expected));
}
}
// Compares a few values with data calculated by hand.
public void testIndividualValues() throws Exception {
List<Pair<Long, LocalDate>> testData =
ImmutableList.of(
entry(13879, 2008, 1, 1),
entry(13880, 2008, 1, 2),
entry(13881, 2008, 1, 3),
// Check dates around leap second.
entry(14244, 2008, 12, 31),
entry(14245, 2009, 1, 1),
entry(15706, 2013, 1, 1));
for (Pair<Long, LocalDate> entry : testData) {
long a = entry.getFirst();
LocalDate b = entry.getSecond();
assertEquals(a, DaysSinceEpoch.fromLocalDate(b));
assertEquals(b, DaysSinceEpoch.toLocalDate(a));
}
}