Rails 5 Test Prescriptions

What You’ve Done

In this chapter you explored different solutions for increasing the speed of your tests. Test speed can be important in a lot of ways. It’s valuable to be able to run useful tests in development without losing your focus. It’s also nice to be able to run all your tests before deploying code and not have that run take a half hour when there’s a bug in production you’re scrambling to fix.

You learned about strategies on the command line to run only a subset of tests at once to allow you to run them more quickly and to focus on the code that is currently being changed. You also learned about strategies to make the test suite faster in a larger sense by allowing you to isolate code from Rails or by removing dependencies so that tests ...