阿迪仔， 你為什麼不寫 Unit Test @ TestCorner#14

初入資訊界當個 RD，大家都在鼓吹寫 Unit Test，好似沒寫 Unit Test 就是一種罪惡
來自 RD 真實的分享，會讓大家對 Unit Test 的態度從喜歡到厭惡，然後到接受自我
寫 code 就像一盒巧克力，永遠不會知道會遇到什麼千奇百怪的需求
只好努力成為海賊王，成為最自由的碼農
要不要寫測試，自己決定

Transcript

1. 阿迪仔，
 你為什什麼不寫 Unit Test Kudo @ CloudMosa
2. TEXT https://www.flickr.com/photos/nasamarshall/32590046350/ Testing
3. TEXT https://www.flickr.com/photos/harusday/2972225334/ Unit
4. UNIT TEST INTRODUCTION SAMPLE
5. UNIT TEST INTRODUCTION 其他種類的 RD TEST ▸ Tree snapshot testing (Jest) ▸ Screenshot testing
6. TEXT https://www.flickr.com/photos/nasamarshall/32590046350/ Testing
7. TEXT https://www.flickr.com/photos/louish/5623834662/ Emulation
8. UNIT TEST INTRODUCTION API SAMPLE
9. UNIT TEST INTRODUCTION EMULATION SAMPLE
10. MOCK OBJECT
12. UNIT TEST INTRODUCTION MOCK SAMPLE
13. TEXT https://www.flickr.com/photos/nathanf/2196763120/ Dependency Injection
14. UNIT TEST INTRODUCTION Dependency - External modules - File system - Network - Device (USB)
15. UNIT TEST INTRODUCTION DI in JavaScript / Python / .. - Monkey Patching
16. UNIT TEST INTRODUCTION DI in Java Java - Spring - Guice Android - Dagger - V1 from Square, V2 from Google - @Inject - Annotation processing
17. UNIT TEST INTRODUCTION C++
18. UNIT TEST INTRODUCTION DI in C++ Constructor
19. UNIT TEST INTRODUCTION DI in C++ Setter
20. UNIT TEST INTRODUCTION DI in C++ Virtual Getter
21. UNIT TEST INTRODUCTION DI in C++ Virtual Creator
22. https://www.flickr.com/photos/ciriloman/8210942087/ Coverage
23. TEXT https://www.flickr.com/photos/usmissiontotheunrome/10420580866/ Coverage
 是種追求
24. COVERAGE 哪⼀一個 COVERAGE 比較好 ▸ 30% ▸ 50% ▸ 80% ▸ 90%
25. COVERAGE COVERAGE 怎麼算的 ▸ Python ▸ tracing function ▸ Java ▸ bytecode ▸ C++ ▸ compiler annotation ▸ 可能造假提⾼高 Coverage ▸ 假 code / commit
26. COVERAGE COVERAGE ⾼高 != QUALITY 好 ▸ 寫 Unit Test 的也是 RD ▸ 多數是正向表列列 ▸ 實際例例⼦子 Integration Test 還是必須，QA＋＋
27. COVERAGE 哪⼀一個 COVERAGE 比較好 ▸ 30% ▸ 50% ▸ 80% ▸ 90% ▸ 轎⾞車車測試項⽬目 ▸ 碰撞測試 ▸ 油與⾥里里程測試 ▸ ⾞車車⾊色標準 ▸ ⾞車車體⾼高度
28. UNIT TEST UNIT TEST 帶來來什什麼好處 ▸ 增加信⼼心 ▸ 幫助 Refactoring ▸ 乾淨的 Interface ▸ Over design !? ▸ TDD
29. TDD IS DEAD DHH UNIT TEST
30. UNIT TEST TDD IS DEAD ▸ 來來⾃自 Ingram Chen ⼤大⼤大的分享 ▸ Test Driven Development 經驗整理理 ▸ https://ingramchen.io/blog/2014/04/how-i-do-test- driven-development.html ▸ 無法測試的程式 ▸ https://ingramchen.io/blog/2014/04/things-i-dont- test.html
31. 如果你跟我⼀一樣，沒 ⾃自信⼜又⾃自卑卑，那就⼀一 起來來寫 UNIT TEST 吧 XD Kudo UNIT TEST
32. 有經驗的 RD，⾃自由地寫 Unit Test
33. Q & A