public void given_a_starting_number()
        {
            before = () => generator = new PhoneNumberGenerator(new MoveMatrix());

            context["no valid phone numbers start with zero"] = () =>
            {
                List<PhoneNumber> listOfNumbers = generator.GetNumbersStartingFrom(0);

                specify = () => listOfNumbers.Count.should_be(0);
            };

            context["no valid numbers start with one"] = () =>
            {
                List<PhoneNumber> listOfNumbers = generator.GetNumbersStartingFrom(1);

                specify = () => listOfNumbers.Count.should_be(0);
            };

            context["starting from two (2) should produce valid numbers"] = () =>
            {
                List<PhoneNumber> listOfNumbers = generator.GetNumbersStartingFrom(2);

                specify = () => listOfNumbers.Count.should_be_greater_than(0);
            };
        }
 public void Setup()
 {
     numberGenerator = new PhoneNumberGenerator(new GoofysMatrix());
 }