public void solve_for_expected_answer_part_one(string input, string expected)
        {
            var solver = new DaySixSolver();

            var actual = solver.PartOneSolve(input);

            actual.Should().Be(expected);
        }
        public void solve_for_unknown_answer_part_one()
        {
            var inputs = File.ReadAllLines("./Day06/input_part_one.txt");
            var solver = new DaySixSolver();

            var actual = solver.PartOneSolve(string.Join("\n", inputs));

            _outputHelper.WriteLine($"{actual}");
        }