public void Default_ReturnsExpectedString()
            {
                VowelMovement puzzle         = new VowelMovement();
                const string  EXPECTED_TWEET =
                    @"

#HowToPlay: https://t.co/rSa0rUCvRC
";

                Assert.AreEqual(EXPECTED_TWEET, puzzle.GetTweet());
            }
            public void Example_ReturnsExpectedString()
            {
                VowelMovement puzzle = new VowelMovement
                {
                    Clue = "Each morning I have * * muffins with a cup of weak * because it's good for my *."
                };
                const string EXPECTED_TWEET =
                    @"Each morning I have * * muffins with a cup of weak * because it's good for my *.

#HowToPlay: https://t.co/rSa0rUCvRC
";

                Assert.AreEqual(EXPECTED_TWEET, puzzle.GetTweet());
            }