/// <summary>
        /// Day 4 Answer 1 and 2
        /// </summary>
        /// <param name="startRange"></param>
        /// <param name="endRange"></param>
        /// <param name="maxTwoAdjacent"></param>
        internal void GetNumberOfValidPasswords(int startRange, int endRange, bool maxTwoAdjacent)
        {
            var possiblePasswords = 0;
            var range             = Enumerable.Range(startRange, (endRange + 1) - startRange - 1);

            foreach (var password in range)
            {
                if (_secureContainer.IsValid(password, maxTwoAdjacent))
                {
                    possiblePasswords++;
                }
            }

            if (maxTwoAdjacent)
            {
                Console.WriteLine($"The number of possible password, with max two adjacent numbers the same, in this range is {possiblePasswords}");
            }
            else
            {
                Console.WriteLine($"The number of possible passwords in this range is {possiblePasswords}");
            }
        }
        public void PasswordDoesNotHaveOnlyTwoAdjacentDigits(int password)
        {
            var secureContainer = new SecureContainer();

            Assert.IsFalse(secureContainer.IsValid(password, maxTwoAdjacent: true));
        }
        public void PasswordHasOnlyTwoAdjacentDigits(int password)
        {
            var secureContainer = new SecureContainer();

            Assert.IsTrue(secureContainer.IsValid(password, maxTwoAdjacent: true));
        }
        public void PasswordDecreases(int password)
        {
            var secureContainer = new SecureContainer();

            Assert.IsFalse(secureContainer.IsValid(password, maxTwoAdjacent: false));
        }
        public void PasswordIsSixDigits(int password)
        {
            var secureContainer = new SecureContainer();

            Assert.IsTrue(secureContainer.IsValid(password, maxTwoAdjacent: false));
        }