Now we have test expecting some result, it is now failing for the right reasons.

Now we have test expecting some result, it is now failing for the right reasons.

We are using the double loop of unit testing:

* First, start with an acceptance test.
* Second, once the acceptance test is failing for the right reason then you
go to the inner loop of TDD (the unit test) we can start unit testing our code.
  Once we have all the classes under unit tests our accpetance test should go green.