public void PreviousTwice_JanOne()
{
var offset = new ZoneYearOffset(TransitionMode.Utc, 1, 1, 0, true, LocalTime.Midnight);
var actual = offset.MakeInstant(1970, Offset.Zero, Offset.Zero);
long baseTicks = actual.Ticks;
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
var expected = new Instant(baseTicks - (TicksPerStandardYear + TicksPerLeapYear));
Assert.AreEqual(expected, actual);
}
public void Previous_OneSecondAfterJanOne()
{
var offset = new ZoneYearOffset(TransitionMode.Utc, 1, 1, 0, true, LocalTime.Midnight);
var actual = offset.MakeInstant(1970, Offset.Zero, Offset.Zero) + Duration.Epsilon;
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
var expected = NodaConstants.UnixEpoch;
Assert.AreEqual(expected, actual);
}
public void Previous_WithAddDay()
{
// Last Thursday in October, then add 24 hours. The last Thursday in October 2013 is the 31st, so
// the previous transition is the start of Friday October 26th 2012.
var offset = new ZoneYearOffset(TransitionMode.Utc, 10, -1, (int)IsoDayOfWeek.Thursday, false, LocalTime.Midnight, true);
var instant = Instant.FromUtc(2013, 10, 31, 12, 0);
var expectedPrevious = Instant.FromUtc(2012, 10, 26, 0, 0);
var actualPrevious = offset.Previous(instant, Offset.Zero, Offset.Zero);
Assert.AreEqual(expectedPrevious, actualPrevious);
}
public void PreviousTwice_JanOne()
{
var offset = new ZoneYearOffset(TransitionMode.Utc, 1, 1, 0, true, Offset.Zero);
var actual = offset.MakeInstant(1970, Offset.Zero, Offset.Zero);
long baseTicks = actual.Ticks;
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
var expected = new Instant(baseTicks - (TicksPerStandardYear + TicksPerLeapYear));
Assert.AreEqual(expected, actual);
}
public void Previous_OneSecondAfterJanOne()
{
var offset = new ZoneYearOffset(TransitionMode.Utc, 1, 1, 0, true, Offset.Zero);
var actual = offset.MakeInstant(1970, Offset.Zero, Offset.Zero) + Duration.One;
actual = offset.Previous(actual, Offset.Zero, Offset.Zero);
var expected = Instant.UnixEpoch;
Assert.AreEqual(expected, actual);
}