public void StringTest()
{
StringCalculator thisCalculator = new StringCalculator();
Assert.AreEqual(0, thisCalculator.GetSum(""));
Assert.AreEqual(1, thisCalculator.GetSum("1"));
Assert.AreEqual(10, thisCalculator.GetSum("5,5"));
Assert.AreEqual(40, thisCalculator.GetSum("5,5,4,3,6,3,6,8"));
Assert.AreEqual(40, thisCalculator.GetSum("5\n5,4,3\n6\n3,6,8"));
//Assert.AreEqual(40, thisCalculator.GetSum("//!\n5!5!4!3!6!3!6!8")/*delimeters*/);
}