TDD, CI & CD

Talk about Test Driven Development, Continuous Integration and Continuous Delivery made at the WebMentors 2018 (webMentors2018.cat)

Transcript

1. TDD, CI & CD … at Fewlaps
2. Hi, my name is Esteve and I do stuff! Co-founder & CBO at Fewlaps esteve@fewlaps.com esteveaguilera.github.io github.com/EsteveAguilera @EsteveAguilera
3. Els que fem apps i coses Més de 3 milions de descàrregues a tot el mon Més de 200.000 usuàris actius al mes Android, iOS i WindowsPhone Disponible en 18 idiomes
4. Testing continuous Integration continuous Delivery continuous Deployment
5. Based on a talk by Roc Boronat Co-founder at Fewlaps https://youtu.be/f8Qaqbxu0J0 github.com/rocboronat @rocboronat
6. May I ask a question?
7. unit tests integration tests instrumentation tests
8. Ok, but… what is a test?
9. Ok, but… what is a test?
10. Test Driven Development Add a TEST Run the TEST Pass? Make some changes YES NO Party hard REFACTOR!
11. Unit tests
12. Unit tests
13. Unit tests Given When Then
14. Unit tests https://github.com/Fewlaps/mention-detector
15. Unit tests https://github.com/Fewlaps/mention-detector
16. Unit tests https://github.com/Fewlaps/mention-detector
17. Unit tests https://github.com/Fewlaps/mention-detector
18. Unit tests https://github.com/Fewlaps/mention-detector
19. Unit tests Use it to refactor legacy code!
20. Testing and Refactoring Legacy Code Sandro Mancuso https://youtu.be/_NnElPO5BU0
21. Testing and Refactoring Legacy Code You can not change production code if not covered by tests Just automated refactoring (via IDEs) are allowed
22. Testing and Refactoring Legacy Code Start testing from shortest to deepest branch Start refactoring from deepest to shortest branch
23. Some tips about unit tests follow the given-when-then style test one thing at a time test the domain: is easy and valuable know the tools: JUnit + AssertJ + Mockito
24. Bonus track we do TDD on github! https://github.com/Fewlaps
25. unit tests integration tests instrumentation tests
26. Integration tests develop the API module by TDD check that your customer’s API has not changed monitor your own API using a CI tool
27. Integration tests
28. Integration tests
29. Integration tests
30. unit tests integration tests instrumentation tests
31. Instrumentation tests simple way to do defensive testing fast way to develop “deep screens” espresso has been a game changer barista serves a great espresso (https://github.com/SchibstedSpain/Barista) they use to fail at CI tools
32. Instrumentation tests
33. Instrumentation tests
34. Tests bonus track do EDD (Error-Driven Development) Found a bug? Write a test that reproduces it before fixing it!
35. introducing continuous*
36. The continuous guys (some of them) Jenkins Travis
37. Jenkins • Open source • Self hosted • Install & configure
38. Travis-CI • Hosted service • Free for open source
39. continuous integration continuous delivery continuous deployment
40. Continuous integration
41. Continuous integration fail FAST! in only 10 minutes!
42. Continuous integration
43. Continuous integration maintain code quality using checkstyle
44. continuous integration continuous delivery continuous deployment
45. Continuous delivery launch releases from GIT % of users Betatesters
46. Continuous delivery Develop Master Feature Feature Release v 0.1 v 0.2 launch releases from GIT using Gitflow
47. Continuous delivery launch releases from GIT % of users Betatesters
48. continuous integration continuous delivery continuous deployment
49. Continuous deployment upload a web app in realtime update j2ee servers
50. Lost a detail? https://speakerdeck.com/esteveaguilera esteve@fewlaps.com @EsteveAguilera
51. https://speakerdeck.com/esteveaguilera esteve@fewlaps.com @EsteveAguilera