Exercises

We covered a lot of new material throughout this chapter, so to better understand, we recommend doing the exercises and creating your own project with acceptance tests:

1. Create a Ruby-based web service book-library to store books:

The acceptance criteria is delivered in the form of the following Cucumber feature:

Scenario: Store book in the library
Given: Book "The Lord of the Rings" by "J.R.R. Tolkien" with ISBN number  
"0395974682"
When: I store the book in library
Then: I am able to retrieve the book by the ISBN number

• • Write step definitions for the Cucumber test
  • Write the web service (the simplest is to use the Sinatra framework: http://www.sinatrarb.com/, but you can also use Ruby on Rails).
  • The book should have the following attributes: name, author, and ISBN.
  • The web service should have the following endpoints:
    • POST "/books/" to add a book
    • GET "books/<isbn>" to retrieve the book
  • The data can be stored in the memory.
  • In the end, check if the acceptance test is green.

2. Add "book...