Behat Layered Cake - KaunasPHP

Speed up Behat tests with a clever use of the layered architecture - KaunasPHP meetup edition!

Transcript

1. Behat Layered Cake KaunasPHP edition Kaunas, 14 Jan 2015
2. Labas vakaras!
3. @super_marek Marek Matulka
4. at SensioLabsUK Software Engineer
5. part of Inviqa Group SensioLabsUK
7. a tool that makes BDD possible
8. With Behat you can...
9. With Behat you can... ...write human-readable stories that describe behaviour of your application.
10. With Behat you can... ...automate testing of your application’s behaviour with human-readable examples.
11. With Behat you can... ...change behaviour of your application with confidence.
13. Typical dev stack - Vagrant VM - Symfony framework - mysql or mongodb storage - Linux/OS X host - scrutiniser-ci
14. A project
15. That’s sloooow!
16. Should I get a faster computer?
17. What is the problem?
18. Where’s the problem? it takes too much time
19. Where’s the problem? Guest VM
20. Where’s the problem? MySQL
21. Where’s the problem? MySQL inside Guest VM
22. Let’s try it on the host!
23. A project
24. (63 scenarios in 320 steps) vs
25. But!
26. What if... my project grows and I’ll have 3000+ steps?
27. What if I had 3000+ steps? 300 steps took over 10 minutes 3000 steps will take over 100 minutes! (inside guest VM)
28. What if I had 3000+ steps? 300 steps took over 1 minute 3000 steps will take over 10 minutes! (on host)
29. How to make it faster?
30. Disable xdebug extension 30-40% improvement
31. Replace slow modules with... Replace slow DB with fast in-memory or file-system persistent storage
32. Example Controller
33. Example Controller
34. (short introduction to) Layered Architecture
35. Layered Architecture User Interface Application Domain Infrastructure
36. Dependency Inversion “High level modules should not depend on lower level implementation” – Good old Uncle Bob
37. Dependency Inversion Policy Layer <interface> Policy Service Mechanism Layer <interface> Mechanism Service Utility Layer
38. (short introduction to) Hexagonal Architecture
39. Hexagonal Architecture Browser Logs Database Auth Domain
40. Hexagonal Architecture UI Adapter Log Adapter Data Storage Adapter External Data Adapter Domain
41. Hexagonal Architecture UI Adapter Log Adapter Data Storage Adapter Domain UI client port log adapter port persistence layer port Data Provider Adapter data provider port
42. Hexagonal Architecture UI Adapter Log Adapter Test Adapter Test Adapter Data Storage Adapter Test Adapter Domain External Data Adapter Test Adapter
43. How to do that?
44. Repository Interface Acme\Learning\Conference Acme\Learning\ConferenceRepository
45. Repository Interface Acme\Learning\Conference Acme\Learning\ConferenceRepository Domain Port
46. Describe Communication
47. Your controller
48. Spec Controller to use Interface
49. Spec Controller to use Interface Port
50. Implement your repository
51. Implement your repository Port Adapter
52. Register repository as a Service!
53. Add another Adapter
54. Implement your repository
55. Implement your repository Port Adapter
56. Register repository as a Service!
57. Configure the Test env
58. Prepare Test Infrastructure config_test.yml:
59. Configure dependency injection
60. How fast can it be?
61. MySql Inside Guest VM
62. MySql On Host
63. Mocked Storage Inside Guest VM
64. Mocked Storage On Host
65. Things to remember
66. Hexagonal Architecture UI Adapter Log Adapter Test Adapter Test Adapter Data Storage Adapter Test Adapter Domain External Data Adapter Test Adapter
67. Integration tests Don’t forget to test your adapters! Use PhpUnit for that.
68. Talk to me after presentation! Demo
69. Questions?
70. Thank you! https://speakerdeck.com/super_marek @super_marek