Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Snapshot testing (nomadphp)
Search
Freek Van der Herten
July 20, 2017
Technology
0
160
Snapshot testing (nomadphp)
Freek Van der Herten
July 20, 2017
Tweet
Share
More Decks by Freek Van der Herten
See All by Freek Van der Herten
Uncharted packages (Laravel Live Denmark)
freekmurze
0
200
I shall define this only once
freekmurze
0
410
An Introduction to Snapshot testing
freekmurze
0
490
Event Sourcing In Laravel
freekmurze
0
250
Building a realtime dashboard with Laravel Livewire (PHPKonf)
freekmurze
0
800
A tour behind the scenes of Oh Dear (PHP Benelux)
freekmurze
2
850
A practical look at multitenancy in Laravel
freekmurze
1
350
A practical look at multitenancy in Laravel (Laracon US)
freekmurze
0
730
Highlights Flare codebase (Laracon online)
freekmurze
0
510
Other Decks in Technology
See All in Technology
AWS Well-Architected から考えるオブザーバビリティの勘所 / Considering the Essentials of Observability from AWS Well-Architected
sms_tech
1
490
An introduction to Claude Code SDK
choplin
3
2k
How to Quickly Call American Airlines®️ U.S. Customer Care : Full Guide
flyaahelpguide
0
240
Building GoReleaser - from shell script to paid product
caarlos0
0
110
データ駆動経営の道しるべ:プロダクト開発指標の戦略的活用法
ham0215
2
150
AI Ready API ─ AI時代に求められるAPI設計とは?/ AI-Ready API - Designing MCP and APIs in the AI Era
yokawasa
15
4.4k
20250719_JAWS_kobe
takuyay0ne
0
100
CDKコード品質UP!ナイスな自作コンストラクタを作るための便利インターフェース
harukasakihara
2
240
Bill One 開発エンジニア 紹介資料
sansan33
PRO
4
13k
第64回コンピュータビジョン勉強会「The PanAf-FGBG Dataset: Understanding the Impact of Backgrounds in Wildlife Behaviour Recognition」
x_ttyszk
0
250
Semantic Machine Intelligence for Vision, Language, and Actions
keio_smilab
PRO
2
270
低レイヤソフトウェア技術者が YouTuberとして食っていこうとした話
sat
PRO
6
5.2k
Featured
See All Featured
YesSQL, Process and Tooling at Scale
rocio
173
14k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.4k
Become a Pro
speakerdeck
PRO
29
5.4k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
108
19k
It's Worth the Effort
3n
185
28k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
2.9k
Why Our Code Smells
bkeepers
PRO
337
57k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
138
34k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
282
13k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Transcript
A practical intro to snapshot testing
About me Freek Van der Herten Partner & developer at
SPATIE @freekmurze https://murze.be
About me phpantwerp.be Dries Vints @driesvints Frederick Vanbrabant @TheEdonian
Since 2003 Websites, applications and webshops Team 4 developers, 1
manager Specialization Laravel development
OPEN SOURCE SOFTWARE
± 120 packages on Packagist Laravel, Framework agnostic PHP ±
4 000 000 downloads in total, growing ±500 000 a month We create a lot of it Open source software
http://github-awards.com/users?type=world&language=php Open source software
LET’S TALK SNAPSHOT TESTING
A file on disk, let’s call in snapshot Test succeeds
if output matches snapshot If not, test will fail What?
Old name: characterization testing Popularized by Facebook Jest Testing interfaces
Where does it come from?
https://github.com/spatie/phpunit-snapshot-assertions assertMatchesSnapshot assertMatchesJsonSnapshot assertMatchesXmlSnapshot How can we do it in
PHP?
DEMO
WRAPPING UP
Advantages Very easy to get started with Can be used
to validate complex output Easily update all the tests in one go
Disadvantages Brittle Hard to pinpoint exact point of failure Bugs
can be easily written in the snapshots
https://github.com/spatie/phpunit-snapshot-assertions https://sebastiandedeyne.com/posts/2017/a-package-for-snapshot- testing-in-phpunit https://murze.be/2017/04/practical-introduction-snapshot-testing/ https://www.sitepoint.com/snapshot-testing-viable-php/ https://facebook.github.io/jest/docs/snapshot-testing.html Interesting links
Thank you! https://speakerdeck.com/freekmurze/snapshot-testing-nomadphp https://spatie.be/opensource https://murze.be https://murze.be/newsletter/
QUESTIONS?