public void DetermineHowManyUnitsLeft()
        {
            var filePath = @"TwentyFour\DayTwentyFourTestInput.txt";
            var sut      = new DayTwentyFour();
            var result   = sut.DetermineHowManyUnitsLeft(filePath, 0, false);

            Assert.Equal(5216, result.UnitsLeft);
        }