This document discusses how to test Rails applications using different types of tests. It recommends starting with feature specs to test user flows which are slow but test the full stack. It also recommends using model specs to test models in isolation which are fast. Controller specs test controller actions and should avoid duplicating feature tests. View specs test view logic. Test doubles, stubs, and spies can be used to isolate parts of the app for faster testing.

1. How We Test Rails
Applications

2. Damian Galarza
Developer at thoughtbot
@dgalarza

3. RSpec

4. Outside In Testing

5. Feature specs

6. Feature Specs
Slow

7. Feature Specs
spec/features

8. Feature Specs
ROLE_ACTION_spec.rb

9. Feature Specs
patient_checks_in_for_appointment_spec.rb

10. Feature Specs

11. Model specs

12. Model Specs
Fast

13. Model Specs
Test smaller parts

14. Model Specs

15. Model Specs

16. Model Specs

17. Model Specs

18. Controller specs

19. Controller Specs
Test multiple paths

20. Controller Specs
Don’t duplicate tests from
features

21. Controller Specs

22. View specs

23. View Specs
Conditional View Logic

24. View Specs

25. Test doubles and stubs

26. Test doubles and stubs

27. Test doubles and stubs

28. Test spies

29. Test spies
Validate a message is
received

30. Test spies

31. Questions?