Test Driven Development (TDD) is a way to write unit tests before writing any recipe code. By writing the test first, you design what your recipe should do and you ensure that your test is for real because it should fail as long as you haven't written your recipe code.
As soon as you've done your recipe, your unit tests should pass.
ChefSpec is built on the popular RSpec framework and offers a tailored syntax for testing Chef recipes.
Let's develop a very simple recipe using the TDD approach with ChefSpec.
Make sure you've a cookbook called
my_cookbook and the
run_list of your node includes
my_cookbook as described in the Creating and using cookbooks section in Chapter 1, Chef ...