public void ShouldSubtractFromCount()
            {
                int startCount;
                var vector = new VectorAdt <int>();

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

                vector.Remove(2);
                vector.Count.Should().Be(startCount - 1);
            }
            public void ShouldHaveDifferentValueInIndex()
            {
                const int valueToRemove = 2;
                const int indexToRemove = 1;
                var       vector        = new VectorAdt <int>();

                vector.Add(1, 2, 3);
                vector.Remove(valueToRemove);

                vector[indexToRemove].Should().Be(3);
            }