public void TestPresent()
        {
            var data = new Stack <decimal>();

            data.Push(1);
            data.Push(2);
            data.Push(3);

            ViewModelBuilder.PresentStack(data).Should().BeEquivalentTo("stack: 1 2 3");

            data.Clear();
            ViewModelBuilder.PresentStack(data).Should().BeEquivalentTo("stack:");
        }
        public void Test_less_Than_10decimal_Present()
        {
            var decimalData = 1.1234567m;
            var data        = new Stack <decimal>();

            data.Push(decimalData);
            data.Push(2);
            data.Push(3);

            ViewModelBuilder.PresentStack(data).Should().BeEquivalentTo("stack: 1.1234567 2 3");
            data.Pop().Should().Equals(decimalData);

            data.Clear();
            ViewModelBuilder.PresentStack(data).Should().BeEquivalentTo("stack:");
        }