public void FreeToPlayPeriodContainsTest()
        {
            DateTime date = DateTime.Now;
            FreeToPlayPeriod freeToPlayPeriod = new FreeToPlayPeriod(date, date.AddDays(1));

            Assert.IsFalse(freeToPlayPeriod.Contains(freeToPlayPeriod.Begin.AddTicks(-1)));
            Assert.IsTrue(freeToPlayPeriod.Contains(freeToPlayPeriod.Begin));
            Assert.IsTrue(freeToPlayPeriod.Contains(freeToPlayPeriod.End.AddTicks(-1)));
            Assert.IsFalse(freeToPlayPeriod.Contains(freeToPlayPeriod.End));
        }