public void TestGetArtistsChartValid()
        {
            Musixmatch Musixmatch = new Musixmatch(Environment.GetEnvironmentVariable("MusixmatchApiToken"));
            String     actual     = Musixmatch.GetArtistsChart("us").ElementAt(0).ArtistCountry;
            String     expected   = "US";

            Assert.AreEqual(expected, actual);
        }
        public void TestGetArtistsChartNull()
        {
            Musixmatch Musixmatch = new Musixmatch(Environment.GetEnvironmentVariable("MusixmatchApiToken"));

            try
            {
                List <Artist> Album = Musixmatch.GetArtistsChart("ussssss");
            }
            catch (StatusCodeException e)
            {
                String actual   = e.Message;
                String expected = "STATUS CODE 404 : The requested resource was not found.";
                Assert.AreEqual(expected, actual);
            }
        }