9_ways_to_test_your_spaghetti_code_-_Devoxx_Ukraine.pdf

Transcript

1. Devoxx Ukraine 9 ways to test your spaghetti code Mads Opheim @MadsOpheim
2. Goal of this talk: You’ll be inspired and enabled to test your legacy code 2
3. What is spaghetti code? 3
4. Precondition: You are creative The computer is not 4
5. 1. Extract interface 5
7. 7 2. Set your dependencies
9. Singletons 9
10. 3. Package-protect problematic parts 10
12. 4. Consider removing final 12
13. Well-designed code is testable code 13
14. 14 5. Help your team
15. 6. Run your tests - and care 15
16. 7. Feature toggles 16
17. 8. One class != one test class 17
18. 9. Test-driven development 18
19. Test-driven spaghetti 19
20. Give me more @lisacrispin, @lisihocke, @techgirl1908... 20
21. Key takeaways 21 1. Good code design improves testability 2. Short-term sacrifices are ok 3. Write tests for you legacy code - you can do it!
22. спасибі! 22 @MadsOpheim mads.opheim@computas.com