static void Main()
{
Console.WriteLine("Please enter a number and we will convert it into word-form:");
string input = Console.ReadLine();
NumberConverter converterBoy = new NumberConverter();
Console.WriteLine(converterBoy.ConvertToWords(input));
}
public void ConvertToWords_NumbersOnly_TryAgain()
{
Assert.AreEqual("Numerical input only! Please try again.", testNumberConverter.ConvertToWords("ten"));
}