Integration testing your Chef cookbooks with Test Kitchen
Verifying that your cookbooks really work when converging a node is essential. Only if you can trust your cookbooks, you are ready to run them anytime on your production servers.
Test Kitchen is Chef's integration testing framework. It enables you to write tests, which run after a VM is instantiated and converged, using your cookbook. Your tests run in that VM and can verify that everything works as expected.
This is in contrast to ChefSpec, which only simulates a Chef run. Test Kitchen boots up a real node and runs Chef on it. Your tests see the real thing.
Let's see how you can write such integration tests for your cookbooks.
Getting ready
Make sure you have a cookbook named my_cookbook, as described in the Creating and using cookbooks recipe in Chapter 1, Chef Infrastructure.
Make sure you have Vagrant installed, as described in the Managing virtual machines with Vagrant recipe in Chapter 1, Chef Infrastructure.
