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This is the exercise for week 2 day 1.


  1. Read about unit testing at the following links:
  1. Clone this repository (git clone
  2. cd into the NSS-Linked-List folder on your computer
  3. Run rake to run the test suite
  4. Make the test suite pass by implementing the LinkedList and LinkedListItem classes
  • Choose one test at a time to work on
  • Once the tests pass, you should refactor and clean up your code

More Information

The tests for the project are in the /tests directory.

The stubbed classes that you are to implement are in the /lib directory.

I have numbered the unit tests to give you a hint at the easiest implementation order.