public void Puzzle1Example_CountsPasswordsCorrectly()
        {
            var passports = new Passports(Puzzle1Example);

            passports.Should().HaveCount(4);
            passports.Where(x => x.HasRequiredFields).Should().HaveCount(2);
        }
        public void Puzzle2_CountPassportsWithValidValues_StillIgnoringCountryId()
        {
            var passports = new Passports(Input.Day04);

            passports.Where(x => x.HasValidValues).Should().HaveCount(123);
        }
        public void Puzzle1_CountValidPassports_IgnoringCountryId()
        {
            var passports = new Passports(Input.Day04);

            passports.Where(x => x.HasRequiredFields).Should().HaveCount(206);
        }