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
Unit Testing in Swift
Search
DAloG
March 19, 2016
Programming
2
360
Unit Testing in Swift
DAloG
March 19, 2016
Tweet
Share
More Decks by DAloG
See All by DAloG
State normalization (RU)
dalog
0
190
Redux + MQTT
dalog
1
770
От задач к проблемам
dalog
1
250
Unlimited power of Data-Driven UI
dalog
4
630
Data-Driven View Controllers. Tips and Tricks
dalog
5
1.9k
2 years of Redux in iOS. Lessons learned
dalog
0
370
Why unidirectional architecture matter for iOS.
dalog
1
290
Mobile backend without REST
dalog
2
100
Self managed teams 101
dalog
0
150
Other Decks in Programming
See All in Programming
ktr0731/go-mcpでMCPサーバー作ってみた
takak2166
0
170
都市をデータで見るってこういうこと PLATEAU属性情報入門
nokonoko1203
1
540
Javaに鉄道指向プログラミング (Railway Oriented Pro gramming) のエッセンスを取り入れる/Bringing the Essence of Railway-Oriented Programming to Java
cocet33000
2
580
SODA - FACT BOOK
sodainc
1
1.1k
Gleamという選択肢
comamoca
6
740
Team topologies and the microservice architecture: a synergistic relationship
cer
PRO
0
910
Benchmark
sysong
0
230
実践ArchUnit ~実例による検証パターンの紹介~
ogiwarat
2
280
既存デザインを変更せずにタップ領域を広げる方法
tahia910
1
240
なぜ「共通化」を考え、失敗を繰り返すのか
rinchoku
0
310
Claude Codeの使い方
ttnyt8701
1
130
来たるべき 8.0 に備えて React 19 新機能と React Router 固有機能の取捨選択とすり合わせを考える
oukayuka
2
820
Featured
See All Featured
How GitHub (no longer) Works
holman
314
140k
The Invisible Side of Design
smashingmag
299
51k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
46
9.6k
Embracing the Ebb and Flow
colly
86
4.7k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
48
2.8k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Scaling GitHub
holman
459
140k
Done Done
chrislema
184
16k
[RailsConf 2023] Rails as a piece of cake
palkan
55
5.6k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
124
52k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.4k
Transcript
DO YOU WANT TO TALK ABOUT UNIT TESTIG IN SWIFT?
#itsat @daloog ¯\_(ϑ)_/¯ Alexey Demedetskiy Sigma Software
THANK YOU APPLE!
99% OF IOS APPS ARE SHIPPED WITH UNIT TESTING!
WORKOUT TIME!!
None
(˽°□°)˽Ɨ ˍʓˍ
ARE UNIT TESTS WORTH IT? HTTP://STACKOVERFLOW.COM/QUESTIONS/237000/IS- THERE-HARD-EVIDENCE-OF-THE-ROI-OF-UNIT-TESTING
TIME += 30% HTTP://COLLABORATION.CSC.NCSU.EDU/LAURIE/PAPERS/ TDDPAPERV8.PDF
DEFECTS -= 60% HTTP://RESEARCH.MICROSOFT.COM/EN-US/GROUPS/ESE/ NAGAPPAN_TDD.PDF
TESTS ARE GREAT!
!(ಠፅಠ!)
WHY WE ARE NOT RUBY?
None
1) MARKET HUSTLE
2) APPLE FRAMEWORKS
3) LACK OF EXPERTISE
4) OUTSOURCE
⌛ ➡
UNIT TESTS ARE WRITTEN BY DEVELOPERS.
None
TESTS ARE DEVELOPERS RESPONSIBILITY
DON’T SELL THEM WRITE THEM
WHY DO WE NEED TO WRITE TESTS?
1) REFACTORING
2) CONFIDENCE
3) CATCHING ERRORS
4) REGRESSION
➡❌➡⌨➡✅
HOW TO WRITE TESTS?
None
UNIT AS SMALLEST LOGIC CONTAINER
FUNCTION
INPUT ➡ OUTPUT
None
None
PURE FUNCTIONS
METHOD
MUTATION OF STATE
None
VOID ➡ VOID
INPUT ➡ OUTPUT
DOMAIN == CODOMAIN
ALL MY CODE IS FUNCTIONAL, WHERE EVERY FUNCTION TAKES ONE
ARGUMENT: ALL MY PROGRAM'S STATE.
OBJECT
None
DEPENDENCIES
TRANSITIVE DEPENDENCIES
None
INITIAL STATE
ORDER OF OPERATIONS
UNIT AS SMALLEST LOGIC CONTAINER
None
TESTS
GWT
GIVEN WHEN THEN
None
AAA
ARRANGE ACT ASSERT
None
SRV
SETUP RECORD VERIFY
FUNCTIONS - GWT
METHODS - AAA
OBJECTS - SRV
VALUE TESTS
BEHAVIOR TESTS
INTEGRATION TESTS
CLIENT TESTS
PYRAMID OF TESTS HTTP://TODDLITTLEWEB.COM/WORDPRESS/2014/06/23/ THE-TESTING-DIAMOND-AND-THE-PYRAMID-2/
None
None
TEST COVERAGE HTTP://MARTINFOWLER.COM/BLIKI/ TESTCOVERAGE.HTML
None
None
TESTS
None
SIDE EFFECTS
RETURN VALUE
FUNCTION CALL
STATE CHANGE
SIDE EFFECTS
None
SWIFT
DEPENDENCIES
STRUCT
INTERNAL
None
PROTOCOL
EXTERNAL
XCTEST
QUICK / NIMBLE HTTPS://GITHUB.COM/QUICK/QUICK
RECORDER HTTPS://GIST.GITHUB.COM/ALEXEYDEMEDETSKIY/ 7A148559C81472A314F7
None
SWIFT
None
None
HTTPS://GITHUB.COM/XNEKOIX/FUNTIONALMVP
HTTP://WWW.AMAZON.COM/WORKING-EFFECTIVELY- LEGACY-MICHAEL-FEATHERS/DP/0131177052
HTTP://WWW.AMAZON.COM/EXTREME-PROGRAMMING- EXPLAINED-EMBRACE-EDITION/DP/0321278658
QUESTIONS: @DALOOG
[email protected]
NOBIDON