public void CanSplitSingleLongWord()
        {
            string longWord  = "abcdefghijklmnopqrstuvwxyz";
            string splitWord = TextSplitter.SplitWord(longWord, 5, " ");

            Assert.AreEqual("abcde fghij klmno pqrst uvwxy z", splitWord);
        }
        public void DoesNotSplitSingleShortWord()
        {
            string longWord  = "abcdefghijklmn";
            string splitWord = TextSplitter.SplitWord(longWord, 15, " ");

            Assert.AreEqual("abcdefghijklmn", splitWord);

            longWord  = null;
            splitWord = TextSplitter.SplitWord(longWord, 15, " ");
            Assert.IsNull(splitWord);

            longWord  = string.Empty;
            splitWord = TextSplitter.SplitWord(longWord, 15, " ");
            Assert.AreEqual(string.Empty, splitWord);
        }