public void MoveForward(string value, string backward, string forward)
        {
            var textInputBuffer = new TextInputBuffer();

            foreach (var c in value)
            {
                textInputBuffer.Insert(c);
            }

            while (!textInputBuffer.IsStart)
            {
                textInputBuffer.MoveBackward();
            }

            textInputBuffer.MoveForward();

            Assert.Equal(backward, textInputBuffer.ToBackwardString());
            Assert.Equal(forward, textInputBuffer.ToForwardString());
        }