Ruby Code Exercise

Write an app that:

Read/parse people information represented in different formats

Find a sample of each format in spec/fixtures
Combine the entries from the different formats
Sort the entries by first_name
Format each entry to <first_name>, <city>, <birth_date M/D/YYYY>
Write at least 2 specs, but no more than 5 - we don't expect 100% coverage

Create as many files/classes as you need
Use anything you need from Ruby standard library
Don't change files under spec/fixtures
Don't change the existing functional test at spec/functional/app_spec.rb
Don't use any gem to accomplish the solution
Don't worry about invalid input data (if your solution works for the sample data, that's what we need)

What we expect to see in your solution

Adherence to Ruby's conventions and idioms
Cleanliness/Clarity: Is the intent of the code obvious? Are things named appropriately? Please void overly clever solutions.
Consistent style: We don't expect you to follow a specific Ruby code style, but you should be consistent with your choice.
Elegant Object-oriented Design - please avoid imperative or functional coding style. Typically the good solutions will have at least two classes other than PeopleController
Maintainability: How flexible is the code?
Testability: Is it easy to test the code? Please demonstrate with unit tests.
Use DRY, KISS and SOLID responsibly to find the sweet spot between an under-engineering and over-engineering.

Clone the repository, open this directory, and run bundle install
Run bundle exec rspec

Notice that there is one functional test failing
Create a branch to work on the solution
Write code and unit tests until the functional test at spec/functional/app_spec.rb becomes green
Push your branch and create a pull request on GitHub