public void ShouldHaveDifferentValueInIndex()
            {
                const int valueToRemove = 3;
                const int indexToRemove = 2;
                var       vector        = new VectorAdt <int>();

                vector.Add(1, 2, 3, 4);
                vector.RemoveAt(indexToRemove);
                vector[indexToRemove].Should().Be(4);
            }
            public void ShouldSubtractFromCount()
            {
                int startCount;
                var vector = new VectorAdt <int>();

                vector.Add(1, 2, 3);
                startCount = vector.Count;

                vector.RemoveAt(1);
                vector.Count.Should().Be(startCount - 1);
            }