AlienLanguage.Language.AddWord C# (CSharp) Method

        public void AddWord(string word)
        {
            this.words.Add(word);
        }

        public void AddWordsAndMatchPatternStartingWithALetter()
        {
            Language language = new Language();

            language.AddWord("abbc");
            language.AddWord("cbba");
            language.AddWord("aaaa");
            language.AddWord("cccc");

            var result = language.Match("ab(bc)(ac)");

            Assert.IsNotNull(result);
            Assert.AreEqual(1, result.Count());
            Assert.IsTrue(result.Contains("abbc"));
        }