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

Mocks, stubs & seams

Avatar for ngarneau ngarneau
January 15, 2014
Programming
0
110

Mocks, stubs & seams

OpenCode talk about unit testing and advanced techniques using mocks stubs & seams
Avatar for ngarneau

ngarneau

January 15, 2014
Tweet

More Decks by ngarneau

See All by ngarneau
Introduction au machine learning avec Scitkit-learn
Avatar for ngarneau ngarneau
0
44
big data
Avatar for ngarneau ngarneau
5
400

Other Decks in Programming

See All in Programming
脱Riverpod？fqueryで考える、TanStack Queryライクなアーキテクチャの可能性
Avatar for Takuma Osada ostk0069
0
480
たった 1 枚の PHP ファイルで実装する MCP サーバ / MCP Server with Vanilla PHP
Avatar for Shohei Okada okashoi
1
290
Claude Code + Container Use と Cursor で作る ローカル並列開発環境のススメ / ccc local dev
Avatar for Yuichi Maekawa kaelaela
12
6.9k
Startups on Rails in Past, Present and Future–Irina Nazarova, RailsConf 2025
Avatar for Irina Nazarova irinanazarova
0
220
『自分のデータだけ見せたい！』を叶える──Laravel × Casbin で複雑権限をスッキリ解きほぐす 25 分
Avatar for AkitoTsukahara akitotsukahara
2
660
iOS 26にアップデートすると実機でのHot Reloadができない？
Avatar for Aoi Umigishi umigishiaoi
0
140
DMMを支える決済基盤の技術的負債にどう立ち向かうか / Addressing Technical Debt in Payment Infrastructure
Avatar for yoshiyoshifujii yoshiyoshifujii
3
180
GPUを計算資源として使おう！
Avatar for prime number primenumber
1
220
Modern Angular with Signals and Signal Store: New Rules for Your Architecture @enterJS Advanced Angular Day 2025
Avatar for Manfred Steyer manfredsteyer
PRO
0
250
フロントエンドのパフォーマンスチューニング
Avatar for kouki.miura koukimiura
5
1.9k
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
Avatar for Oikon s4yuba
16
13k
イベントストーミング図からコードへの変換手順 / Procedure for Converting Event Storming Diagrams to Code
Avatar for nrs nrslib
2
1.1k

Featured

See All Featured
What's in a price? How to price your products and services
Avatar for Michael Herold michaelherold
246
12k
KATA
Avatar for Megan Lloyd mclloyd
30
14k
The World Runs on Bad Software
Avatar for Brandon Keepers bkeepers
PRO
70
11k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
Avatar for mongodb mongodb
47
9.6k
Building an army of robots
Avatar for Kyle Neath kneath
306
45k
Save Time (by Creating Custom Rails Generators)
Avatar for Garrett Dimon garrettdimon
PRO
31
1.3k
Fight the Zombie Pattern Library - RWD Summit 2016
Avatar for Marcelo Somers marcelosomers
233
17k
Build your cross-platform service in a week with App Engine
Avatar for Jose L jlugia
231
18k
Testing 201, or: Great Expectations
Avatar for Joseph Mastey jmmastey
43
7.6k
Improving Core Web Vitals using Speculation Rules API
Avatar for Sergey Chernyshev sergeychernyshev
18
980
Easily Structure & Communicate Ideas using Wireframe
Avatar for Afnizar Nur Ghifari afnizarnur
194
16k
The Language of Interfaces
Avatar for Des Traynor destraynor
158
25k

Transcript

  1. mocks, stubs & seams Nicolas Garneau

  2. stubs Using stubs to break dependencies

  3. seams we are used to it! dependency!

  4. seams we can create a seam in the method call

  5. seams or via a setter

  6. stubs A stub is not like a mock but it

    looks like

  7. mocks Use mock to test interaction between objects

  8. mocks The Observer Pattern Observable «interface» attachObserver() detachObserver() notify() ConcreteObservable

    setState() getState() Observer «interface» update() ConcreteObserver update()

  9. mocks mock it! expect the call only once attach it

    Hell yeah that’s a seam! acts as a test