Adding Rspec

I removed the old style of tests because they seemed to be empty and it seems like the community is moving towards rspec. I've written just one unit test file but plan to write more. Because I'm making pretty drastic changes to the way that this project would be tested, I wanted to get this out in front of everyone.  Any comments, suggestions for improvement, or general guidance? 

Known TODO:
Update the readme with instructions for running the tests
Write more tests
    Finish the unit suite
    Figure out how to do the functional/integration test suite
Work to get the tests integrated into the application deployment process (CI/CD)
    Add acceptance testing to the CI/CD process