public void LastElementTestThrow()
        {
            var list = new VSArray <int>();

            Assert.Throws(typeof(InvalidOperationException), () => list.LastElement());
        }
        public void LastElementTest()
        {
            var list = new VSArray <int>(new[] { 0, 1, 2, 3, 4 });

            Assert.That(list.LastElement(), Is.EqualTo(4));
        }