public void GetHalfyearRangeTest() { var halfyearRange = TimeTool.GetHalfyearRange(startTime, TimeCalendar.NewEmptyOffset()); var start = startTime.StartTimeOfHalfyear(); halfyearRange.Start.Should().Be(start); halfyearRange.End.Should().Be(halfyearRange.GetNextHalfyear().Start); }