public void ReturnsNullForNullValue()
            {
                var converter = new TextToUpperCaseConverter();

                Assert.AreEqual(null, converter.Convert(null, typeof(string), null, (CultureInfo)null));
            }
            public void ReturnsUpperCaseString()
            {
                var converter = new TextToUpperCaseConverter();

                Assert.AreEqual("UPPERCASE", converter.Convert("UpPeRcAsE", typeof(string), null, (CultureInfo)null));
            }