public void Given_Stack_When_PushTheeValuesAndPopTwoValues_Then_CountShouldBeOne()
        {
            //Given
            var size          = 5;
            var stack         = new StackV3(size);
            var expectedCount = 1;

            //When
            stack.Push(1);
            stack.Push(2);
            stack.Push(3);
            stack.Pop();
            stack.Pop();

            //Then
            Assert.AreEqual(expectedCount, stack.Count);
        }
        public void Given_EmptyStack_When_Pop_Then_ShouldThrowException()
        {
            //Given
            var size  = 3;
            var stack = new StackV3(size);

            //When
            //Then
            Assert.ThrowsException <Exception>(() => stack.Pop());
        }