public void ShouldThrowIndexOutOfRangeIfIsGreaterThanCount()
            {
                var    vector = new VectorAdt <int>();
                Action act    = () => vector.Get(0);

                act.Should().Throw <IndexOutOfRangeException>();
            }
            public void ShouldThrowIndexOutOfRangeAfterClear()
            {
                var vector = new VectorAdt <int>();

                vector.Add(1, 2, 3);
                vector.Clear();

                Action act = () => vector.Get(0);

                act.Should().Throw <IndexOutOfRangeException>();
            }