Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Why TDD is a dangerous sect

Avatar for sharnik sharnik
April 20, 2012
Programming
4
300

Why TDD is a dangerous sect

A presentation about that looks in a critical way on common TDD propaganda.

Avatar for sharnik

sharnik

April 20, 2012
Tweet

More Decks by sharnik

See All by sharnik
Cross-platform Mobile Development with React Native
Avatar for sharnik sharnik
0
210
Debugging
Avatar for sharnik sharnik
0
460
Going Polyglot the Easy Way
Avatar for sharnik sharnik
0
450

Other Decks in Programming

See All in Programming
デミカツ切り抜きで面倒くさいことはPythonにやらせよう
Avatar for aokirishima aokswork3
0
230
iOSエンジニア向けの英語学習アプリを作る！
Avatar for yukawashouhei yukawashouhei
0
190
After go func(): Goroutines Through a Beginner’s Eye
Avatar for Vaibhav Gupta 97vaibhav
0
390
Web Components で実現する Hotwire とフロントエンドフレームワークの橋渡し / Bridging with Web Components
Avatar for Daichi KUDO da1chi
3
2.5k
詳しくない分野でのVibe Codingで困ったことと学び/vibe-coding-in-unfamiliar-area
Avatar for shibayu36 shibayu36
3
5k
CSC305 Lecture 06
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
230
Goで実践するドメイン駆動開発 AIと歩み始めた新規プロダクト開発の現在地
Avatar for imkaoru imkaoru
4
840
高度なUI/UXこそHotwireで作ろう Kaigi on Rails 2025
Avatar for Naofumi Kagami naofumi
4
4.1k
Android16 Migration Stories ~Building a Pattern for Android OS upgrades~
Avatar for Swimmy reoandroider
0
110
CSC305 Lecture 04
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
270
GraphQL×Railsアプリのデータベース負荷分散 - 月間3,000万人利用サービスを無停止で
Avatar for Koya Masuda koxya
1
1.3k
そのpreloadは必要？見過ごされたpreloadが技術的負債として爆発した日
Avatar for mugi mugitti9
2
3.4k

Featured

See All Featured
It's Worth the Effort
Avatar for 3n 3n
187
28k
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
2.1k
The Success of Rails: Ensuring Growth for the Next 100 Years
Avatar for Eileen M. Uchitelle eileencodes
46
7.7k
Raft: Consensus for Rubyists
Avatar for Patrick Van Stee vanstee
140
7.1k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
9
590
Reflections from 52 weeks, 52 projects
Avatar for Jefferson Lam jeffersonlam
353
21k
Scaling GitHub
Avatar for Zach Holman holman
463
140k
Measuring & Analyzing Core Web Vitals
Avatar for Philip Tellis bluesmoon
9
620
Optimising Largest Contentful Paint
Avatar for Harry Roberts csswizardry
37
3.5k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
190
11k
BBQ
Avatar for Matthew Crist matthewcrist
89
9.8k
The Language of Interfaces
Avatar for Des Traynor destraynor
162
25k

Transcript

  1. Why TDD is a dangerous sect Friday, April 20, 12

  2. Why TDD is a dangerous sect Friday, April 20, 12

  3. TDD zealots Friday, April 20, 12

  4. @josevalim Friday, April 20, 12

  5. TDD ? BDD Friday, April 20, 12

  6. TDD ? BDD I don’t care Friday, April 20, 12

  7. Why TDD is a dangerous sect Friday, April 20, 12

  8. TDD is about writing tests Friday, April 20, 12

  9. TDD is about writing tests NOT Friday, April 20, 12

  10. TDD is about writing tests FIRST Friday, April 20, 12

  11. @fxn Friday, April 20, 12

  12. Programming, Motherfucker Friday, April 20, 12

  13. TDD speeds up development Friday, April 20, 12

  14. TDD speeds up development NOT Friday, April 20, 12

  15. TDD actually adds 30-50% time overhead Friday, April 20, 12

  16. TESTS are the best tool for bug removal Friday, April

    20, 12

  17. unit tests integration tests pair-programming code review Friday, April 20,

    12

  18. unit tests integration tests pair-programming code review Friday, April 20,

    12

  19. unit tests integration tests pair-programming code review Friday, April 20,

    12

  20. unit tests integration tests pair-programming code review Friday, April 20,

    12

  21. unit tests integration tests pair-programming code review Friday, April 20,

    12

  22. code review Friday, April 20, 12

  23. unit tests 35% integration tests 30% pair-programming 30% code review

    60% Friday, April 20, 12

  24. TDD is Agile Friday, April 20, 12

  25. TDD projects are NOT Agile Friday, April 20, 12

  26. Individuals and interactions over processes and tools. Working software over

    comprehensive documentation. Customer collaboration over contract negotiation. Responding to change over following a plan. Friday, April 20, 12

  27. Individuals and interactions over processes and tools. Working software over

    comprehensive documentation. Customer collaboration over contract negotiation. Responding to change over following a plan. Friday, April 20, 12

  28. TDD forces good code design Friday, April 20, 12

  29. TDD forces good code design NOT Friday, April 20, 12

  30. TDD forces a design Friday, April 20, 12

  31. Thinking causes good design Friday, April 20, 12

  32. One last thing Friday, April 20, 12

  33. Remember: Test code is just code Friday, April 20, 12

  34. Questions? Friday, April 20, 12