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

                vector.Add(1, 2, 3);

                vector.Empty().Should().BeFalse();
            }
            public void ShouldReturnTrueWithoutValues()
            {
                var vector = new VectorAdt <int>();

                vector.Empty().Should().BeTrue();
            }