Specing interactors con BDD PHPSpec2 y YOLO framework

DDD inside :)

Transcript

1. Specking Interactors with PHPSpec and YOLO Toward the scorners he is scornful, but to the humble he gives favor. ~ Proverbs 3:34 Friday, October 4, 13
2. Take control of your project and live a simpler life Toward the scorners he is scornful, but to the humble he gives favor. ~ Proverbs 3:34 Friday, October 4, 13
3. Framework != Domain Friday, October 4, 13
4. Test First Friday, October 4, 13
5. Domain Domain Friday, October 4, 13
6. Implementations are Details Friday, October 4, 13
7. http://www.austinchronicle.com/binary/d294/SS.Hook._leftsideonly_.jpg Friday, October 4, 13
8. http://www.collider.com/wp-content/uploads/Inception-movie-poster-2.jpg Friday, October 4, 13
9. http://static.guim.co.uk/sys-images/Film/Pix/pictures/2008/06/06/matrix460.jpg Friday, October 4, 13
10. Signs of Inception Friday, October 4, 13
11. Our Framework The Best Friday, October 4, 13
12. Our Practices The Best Friday, October 4, 13
13. Our Community never makes mistakes Friday, October 4, 13
14. Framework is convenient Friday, October 4, 13
15. But we are not solving The Problem Friday, October 4, 13
16. Friday, October 4, 13
17. Friday, October 4, 13
18. Friday, October 4, 13
19. Friday, October 4, 13
20. Domain Friday, October 4, 13
21. Domain Expert Friday, October 4, 13
22. BDD Friday, October 4, 13
23. BDD Tools Behat, PhpSpec Friday, October 4, 13
24. but DDD is for Large Systems ... Friday, October 4, 13
25. Friday, October 4, 13
26. show me how... Friday, October 4, 13
27. Friday, October 4, 13
28. Problem: some don’t want to pay for certification exams, so let’s build a community site for those exams. Friday, October 4, 13
29. Before we jump into the sauce: Find a qualified examiner, could be a real educator if not then try to become one Friday, October 4, 13
30. Spec First ↝ BDD + DDD Feature: student can take an exam Scenario: student takes an exam Given student starts an exam And student is presented with a question When student answers to question ... Then student ends exam and gets graded Friday, October 4, 13
31. Modeling feature DSL BDD Scenario Learning Process Friday, October 4, 13
32. Modeling feature DSL entity service repository interactor (use case) port value object BDD Scenario Support BDD Learning Process Friday, October 4, 13
33. Modeling feature DSL entity service repository interactor (use case) port value object Exam Repository Attempt Repository Attempt Question Exam Grader Converter ShowAll Exams Grade Attempt BDD Scenario BDD Spec Support BDD Learning Process Friday, October 4, 13
34. Modeling feature DSL entity service repository interactor (use case) port value object Exam Repository Attempt Repository Attempt Question Exam Grader Converter ShowAll Exams Grade Attempt BDD Scenario BDD Spec Support BDD DDD Breaking and Fixing Specs Learning Process Friday, October 4, 13
35. Modeling feature DSL entity service repository interactor (use case) port value object Exam Repository Attempt Repository Attempt Question Exam Grader Converter ShowAll Exams Grade Attempt BDD Scenario BDD Spec Support BDD DDD Refactoring Behavior DDD Breaking and Fixing Specs Learning Process Friday, October 4, 13
36. Learning Process Friday, October 4, 13
37. Folder Structure To convey: - inversion of dependencies - make dependencies explicit - domain and infrastructure separation - bounded context separation Friday, October 4, 13
38. ~ tree -L 6 !"" features # !"" student_takes_exam.feature # $"" teacher_builds_exam.feature !"" spec # $"" Simulator # !"" Domain # # !"" Model # # # $"" Exam # # # !"" AttemptSpec.php # # # !"" ExamSpec.php # # # !"" OptionSpec.php # # # $"" QuestionSpec.php # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php Notice these are specs! Friday, October 4, 13
39. ~ tree -L 6 !"" features # !"" student_takes_exam.feature # $"" teacher_builds_exam.feature !"" spec # $"" Simulator # !"" Domain # # !"" Model # # # $"" Exam # # # !"" AttemptSpec.php # # # !"" ExamSpec.php # # # !"" OptionSpec.php # # # $"" QuestionSpec.php # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php Friday, October 4, 13
40. ~ tree -L 6 !"" features # !"" student_takes_exam.feature # $"" teacher_builds_exam.feature !"" spec # $"" Simulator # !"" Domain # # !"" Model # # # $"" Exam # # # !"" AttemptSpec.php # # # !"" ExamSpec.php # # # !"" OptionSpec.php # # # $"" QuestionSpec.php # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php Friday, October 4, 13
41. ~ tree -L 6 ... # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php # # # $"" ExamsSpec.php # # !"" Services # # # !"" ExamsConverterSpec.php # # # !"" GraderSpec.php # # # $"" PrototypeManagerSpec.php # # !"" Support # # # $"" StudentHelperSpec.php # # $"" UseCase # # !"" GradesAttemptSpec.php Friday, October 4, 13
42. ~ tree -L 6 ... # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php # # # $"" ExamsSpec.php # # !"" Services # # # !"" ExamsConverterSpec.php # # # !"" GraderSpec.php # # # $"" PrototypeManagerSpec.php # # !"" Support # # # $"" StudentHelperSpec.php # # $"" UseCase # # !"" GradesAttemptSpec.php Friday, October 4, 13
43. ~ tree -L 6 ... # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php # # # $"" ExamsSpec.php # # !"" Services # # # !"" ExamsConverterSpec.php # # # !"" GraderSpec.php # # # $"" PrototypeManagerSpec.php # # !"" Support # # # $"" StudentHelperSpec.php # # $"" UseCase # # !"" GradesAttemptSpec.php Friday, October 4, 13
44. ~ tree -L 6 ... # $"" Infrastructure # !"" Cilex # # !"" Command # # # $"" ShowAllExamsCommand.php # # !"" Console # # # $"" Runner.php # # !"" Provider # # # $"" SimulatorServiceProvider.php # # $"" config.yml Friday, October 4, 13
45. ~ tree -L 6 ... # $"" Infrastructure | ... # !"" Persistence # # !"" Doctrine # # # $"" OrmExamRepository.php # # !"" InMemoryAttemptRepository.php # # !"" InMemoryExamRepository.php # # $"" PDO # # $"" PdoExamRepository.php # !"" Symfony # # $"" Bundle # # $"" SimulatorBundle # $"" Yolo # $"" Controller # $"" ExamController.php Friday, October 4, 13
46. ~ tree -L 6 ... # $"" Infrastructure | ... # !"" Persistence # # !"" Doctrine # # # $"" OrmExamRepository.php # # !"" InMemoryAttemptRepository.php # # !"" InMemoryExamRepository.php # # $"" PDO # # $"" PdoExamRepository.php # !"" Symfony # # $"" Bundle # # $"" SimulatorBundle # $"" Yolo # $"" Controller # $"" ExamController.php Friday, October 4, 13
47. ~ tree -L 6 ... # $"" Infrastructure | ... # !"" Persistence # # !"" Doctrine # # # $"" OrmExamRepository.php # # !"" InMemoryAttemptRepository.php # # !"" InMemoryExamRepository.php # # $"" PDO # # $"" PdoExamRepository.php # !"" Symfony # # $"" Bundle # # $"" SimulatorBundle # $"" Yolo # $"" Controller # $"" ExamController.php Friday, October 4, 13
48. What if I ask you which classes implement the features? Friday, October 4, 13
49. Folder Structure ~ tree -L 6 ... # # !"" Port # # # !"" AnswerSpec.php # # # !"" ExamSpec.php # # # $"" ExamsSpec.php # # !"" Services # # # !"" ExamsConverterSpec.php # # # !"" GraderSpec.php # # # $"" PrototypeManagerSpec.php # # !"" Support # # # $"" StudentHelperSpec.php # # $"" UseCase # # !"" GradesAttemptSpec.php This bring us back to interactors/use cases Friday, October 4, 13
50. Friday, October 4, 13
51. Friday, October 4, 13
52. Domain ↝ Domain - intention - expressive - explicit Friday, October 4, 13
53. Domain ↝ Domain Friday, October 4, 13
54. Domain ↝ Domain Friday, October 4, 13
55. Show what you did :) Friday, October 4, 13
56. "repositories": [ { "type": "vcs", "url": "git@github.com:cordoval/ExamSimulator" } ], "require": { "igorw/yolo": "dev-master", "cordoval/exam-simulator": "dev-master" }, Friday, October 4, 13
57. ~ php bin/console exams:show - yolo - part I - yolo - part II All exams displayed Friday, October 4, 13
58. http:// craftitonline.com END Friday, October 4, 13