public void ContainsDateShouldReturnTrueWhenIntervalIsInfinite(IDateInterval interval, DateTime date)
{
var result = interval.ContainsDate(date);
Assert.True(result);
}
public void ContainsDateShouldReturnFalseWhenNullIsProvided(IDateInterval interval)
{
var result = interval.ContainsDate(null);
Assert.False(result);
}