Minuto Seguros - Writing software Hands-On

A Hands-On introduction to writing unit tests and software best practices

Transcript

1. Luiz Freneda Writing software hands-on
2. Luiz Freneda Writing software
3. We’ve been writing a lot of software
4. 3~4 years We’ve been writing software for 3~4 years
5. Are we proud?
6. We should be! We should be!
7. What about our future?
8. Rethink
9. Let’s work together
10. And build a professional kitchen
11. Our kitchen :S Duplicated code Cyclomatic complexity Large class null reference Too many parameters Wrong place for things Data Driven Naming Rigidity Fragility Immobility Viscosity Feature Envy Lazy class Where is OO? Data class Comments Long method
12. Our code smells Our design smells
13. Our current code base! yummy?
14. Pain maintain our software
15. Pain Pain maintain our software
16. And more pain maintain our software
17. Deploying our software
18. I can’t take anymore
19. Are we doing it the right way?
20. Professionalism seems like..
21. looks like..
22. know what you are doing
23. who you want to be? Who you want to be?
24. Professionalism
25. Professionalism Saying No / Yes Coding Testing & Test Driven Development Practicing Time Management Estimation Pressure Collaboration
26. I can promise you a better life
27. Agile on you!
28. OOP Design OOP Principles GRASP Code conventions Software testing Clean code Separation of concerns Asynchronous stuffs Being professional Agile Practices TDD CI Pair programming Cloud Open source Are you improving yourself?
29. OOP Design OOP Principles GRASP Code conventions Software testing Clean code Separation of concerns Asynchronous Being professional Agile Practices TDD CI Pair programming Cloud Open source Design Patterns Pair programming Coupling Cohesion Data structure Clean code DDD BDD
30. Think about it
31. Unit testing hands on! Stop talking, start doing!
33. Robert C. Martin ~ “Uncle Bob” https://www.youtube.com/watch?v=HhNIttd87xs#t=2751 Do you know this guy, right?
34. Test Framework / Test Runner
35. Before start testing
36. Object Behavior Data (State) OOP is data and behavior OOP is Data and Behavior
37. OOP is Data and Behavior new Car(); IncreaseSpeed(); DecreaseSpeed(); TurnLightOn(); TurnLightOff(); Speed Distance Fuel Heat
38. Anemic model http://en.wikipedia.org/wiki/Anemic_domain_model
39. Rich model / Domain model
40. AAA Test structure
41. Rich model / Domain model Hands on #1
42. Isolation
43. I don’t want to hit our database
44. Isolation It’s ok to be alone =)
45. Isolation It’s ok to be alone =)
46. Just because you can, doesn't mean you should
47. Creation
48. Usage
50. TerminoCotacao Test Notificacao Service Abstraction Abstraction Db Pedido
51. Test Stub Mock TerminoCotacao
52. Hands on #2
53. Isolation and feedback
54. Fake objects
55. Fake objects {Mocks Stubs Dummies
56. Do I have to create fake class every time?
57. Isolation frameworks to the rescue
58. Hands on #3
59. More than isolation frameworks
60. DateTime.Now
61. Static methods
62. Static methods
63. Static methods Hands on #4
64. __dontPostBack(); http://plnkr.co/edit/pfIn2Q
65. Controller
66. Hands on #5
67. View
68. Hands on #6
69. It was just the beginning
70. TDD Agile support Unit test Acceptance test Tests strategies BDD CI Best practices for testing Isolation strategies OOP Feedback Reusing test code ... There is much more MVC
71. Hands on What should I test?
72. https://www.youtube.com/watch?v=MCVkHaBMz44
73. Hands on
74. Hands on Feedback
75. Feedback Will you endorse me?