public void Should_return_neg_if_cant_sum_to_target()
        {
            var numbers = new List <long> {
                1, 2, 3, 4, 5
            };
            var _encordingError = new EncodingError();
            var index           = _encordingError.sumToTarget(numbers, 7);

            Assert.Equal(-1, index);
        }
        public void Should_continue_adding_numbers_til_target()
        {
            var numbers = new List <long> {
                1, 2, 3, 4, 5
            };
            var _encordingError = new EncodingError();
            var index           = _encordingError.sumToTarget(numbers, 6);

            Assert.Equal(2, index);
        }