public void ReadTimePeriod()
        {
            ITimePeriodProvider sut = new AppSettingsProvider();

            var periodFromConfig = sut.EvaluateTimePeriod(new TimePeriod());

            var expected = new Tuple<DateTime, DateTime>(new DateTime(2050, 1, 2, 4, 5, 8),
                new DateTime(2099, 8, 7, 6, 5, 4));

            Assert.Equal(expected, periodFromConfig);
        }