public void Index_Case2_True()
{
//arrange
string testNumber3 = "2342432";
NumToWord newNumToWord1 = new NumToWord();
//act
newNumToWord1.SetUserNumber(testNumber3);
newNumToWord1.ListOfThrees();
int result3 = NumToWord.GetIndex();
//assert
Assert.AreEqual(3, result3);
}