Test quickly, deploy often

Columbus ATDD talk on 2/5/2015

Transcript

1. Test quickly, deploy often Johnson Denen @jpdenen johnson.denen@gmail.com
2. Agile Quality
4. Why? Requirements are a moving target
5. Why? Solutions are hacked together quickly and we accumulate technical debt
6. Why? So little time for testing
7. Quality Agile
8. Where to start? ➔ Multiple feedback loops ➔ No feature branches ➔ Pair programming
9. Feedback loops
10. Smoke testing ➔ Test the core features ➔ Test functionality prone to breaking ➔ Test end-to-end ➔ Test like a user ➔ Test in less than 10 minutes
11. Cucumber vs RSpec
12. Cucumber
13. RSpec::Given
14. RSpec benefits ➔ Test like a user ➔ Less cognitive load ➔ Easier to maintain ➔ Faster overall process
15. Test quickly...
16. …deploy often
17. Test engineers deploy code
18. Who thought that was a good idea? ➔ We know pass/fail status ➔ We know what is being deployed ➔ Why not dev ops? ➔ We can do it the quickest
19. Continuous delivery According to Martin Fowler, you're doing continuous delivery when... ➔ Software is deployable throughout its lifecycle ➔ Fast, automated feedback on changes ➔ Push-button deployments
20. One great side effect We know who broke the test build!
21. Resolving our issues... Requirements are a moving target ➔ Move so quickly that a changing requirement isn't cumbersome to the team
22. Resolving our issues... Solutions are hacked together quickly and we accumulate technical debt ➔ Near constant feedback on those solutions removes bottlenecks and frees developers to improve their code. Iteration!
23. Resolving our issues... So little time for testing ➔ Automated core and problem (smoke) testing keeps us focused on new features and improvements ➔ Whole team approach to quality
24. Positive results ➔ No bug cards ➔ No rollbacks ➔ Constant A/B testing ➔ Developer happiness ➔ Business confidence
25. Takeaways ➔ Whole team accountability ➔ Communication ➔ Smaller, quicker feedback ➔ Trust your developers ➔ Expand your domain
26. Sound fun?
27. Test quickly, deploy often Johnson Denen @jpdenen johnson.denen@gmail.com