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

Test driven JavaScript

Avatar for Alexander Beletsky Alexander Beletsky
November 17, 2012
Programming
3
840

Test driven JavaScript

The slides from master class I did on XP Days 2012
Avatar for Alexander Beletsky

Alexander Beletsky

November 17, 2012
Tweet

More Decks by Alexander Beletsky

See All by Alexander Beletsky
Snapshot Testing: Going beyond UI
Avatar for Alexander Beletsky alexbeletsky
1
640
Tech Culture in Startups
Avatar for Alexander Beletsky alexbeletsky
0
210
TDD in JavaScript
Avatar for Alexander Beletsky alexbeletsky
4
840
This is Node.js
Avatar for Alexander Beletsky alexbeletsky
10
420
Likeastore
Avatar for Alexander Beletsky alexbeletsky
3
130
PaaS in your pocker with Dokku
Avatar for Alexander Beletsky alexbeletsky
7
2.5k
Building Single Page Applications
Avatar for Alexander Beletsky alexbeletsky
9
5.4k
.NET developer in JavaScript world
Avatar for Alexander Beletsky alexbeletsky
1
2.8k
How to write good tests?
Avatar for Alexander Beletsky alexbeletsky
2
310

Other Decks in Programming

See All in Programming
AIエージェントによるテストフレームワーク Arbigent
Avatar for takahirom takahirom
0
350
Perlで痩せる
Avatar for Yuuki Shimizu yuukis
1
670
Enterprise Web App. Development (2): Version Control Tool Training Ver. 5.1
Avatar for Koichi NAKAGAWA knakagawa
1
110
RubyKaigi Hack Space in Tokyo & 函館最速 "予習" 会 / RubyKaigi Hack Space in Tokyo & The Fastest Briefing of RubyKaigi 2026 in Hakodate
Avatar for moznion moznion
1
130
JSAI2025 RecSysChallenge2024 優勝報告
Avatar for kami unonao
1
430
人には人それぞれのサービス層がある
Avatar for shimabox shimabox
3
630
TypeScript を活かしてデザインシステム MCP を作る / #tskaigi_after_night
Avatar for Masayuki Izumi izumin5210
5
510
実はすごいスピードで進化しているCSS
Avatar for Hayato Yokoyama hayato_yokoyama
0
100
Development of an App for Intuitive AI Learning - Blockly Summit 2025
Avatar for Teba_eleven teba_eleven
0
100
2度もゼロから書き直して、やっとブラウザでぬるぬる動くAIに辿り着いた話
Avatar for Tomohiro Inoue tomoino
0
130
がんばりすぎないコーディングルール運用術
Avatar for Keita Tsukamoto tsukakei
1
210
漸進。
Avatar for TOMIKAWA Sotaro ssssota
0
1.6k

Featured

See All Featured
It's Worth the Effort
Avatar for 3n 3n
184
28k
Facilitating Awesome Meetings
Avatar for Lara Hogan lara
54
6.4k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
188
11k
Designing for Performance
Avatar for Lara Hogan lara
609
69k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
657
60k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
Avatar for Tammy Everts tammyeverts
52
2.8k
Designing for humans not robots
Avatar for Tammie Lister tammielis
253
25k
Easily Structure & Communicate Ideas using Wireframe
Avatar for Afnizar Nur Ghifari afnizarnur
194
16k
Helping Users Find Their Own Way: Creating Modern Search Experiences
Avatar for Dan Newman danielanewman
29
2.6k
Embracing the Ebb and Flow
Avatar for Simon Collison colly
85
4.7k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
53
11k
Performance Is Good for Brains [We Love Speed 2024]
Avatar for Tammy Everts tammyeverts
10
870

Transcript

  1. TEST DRIVEN JAVASCRIPT Show & Talk

  2. None

  3. >5 years of programming C# for fun and profit

  4. >5 years of practicing TDD

  5. “No line of production code without unit test “ rule

    that worked perfect for me during .NET programming

  6. But it FAILED miserably that I started JavaScript programming

  7. None

  8. > Reason 1 JavaScript code seems to be small and

    easy

  9. > Reason 2 Leaving comfort zone is always hard

  10. > Reason 3 DOM appears to be not testable at

    first glance
  11. None

  12. Frameworks && Tools

  13. qUnit, Jasmine, Mocha

  14. Testing business logic

  15. Testing UI/DOM code

  16. Mocking/Spying on objects

  17. Testing AJAX-dependent code

  18. Continuous Testing with LiveReload

  19. Final recommendations: 1. Don't be afraid to start testing. 2.

    Baby steps practice works. 3. Use MV* frameworks.

  20. Thanks, @alexbeletsky