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
iOS TDD iOS Tech Talk
Search
Realm
February 20, 2017
Technology
0
5.2k
iOS TDD iOS Tech Talk
TDD (Test-driven Development) for iOS - iOS Tech Talk 2017
Won Cho
Realm
February 20, 2017
Tweet
Share
More Decks by Realm
See All by Realm
WWDC 2017 Review
realm
0
2.2k
Xcode shortcuts
realm
0
4.7k
Self Branding with GitHub
realm
0
4.3k
Realm Mobile Platform overview and demo
realm
0
2.1k
Realm advanced topics and demo
realm
0
2k
Realm introduction Seoul meetup 10
realm
0
2.2k
Stuart Hall: How I got 2.3 Million App Downloads
realm
0
2k
James Majors: What the Swiftly Func?
realm
1
4.3k
Simina Pasat: Continuous everything for iOS apps
realm
0
650
Other Decks in Technology
See All in Technology
俺の/私の最強アーキテクチャ決定戦開催 ― チームで新しいアーキテクチャに適合していくために / 20260322 Naoki Takahashi
shift_evolve
PRO
1
430
ReactのdangerouslySetInnerHTMLは“dangerously”だから危険 / Security.any #09 卒業したいセキュリティLT
flatt_security
0
480
TUNA Camp 2026 京都Stage ヒューリスティックアルゴリズム入門
terryu16
0
200
【社内勉強会】新年度からコーディングエージェントを使いこなす - 構造と制約で引き出すClaude Codeの実践知
nwiizo
22
11k
Phase01_AI座学_基礎
overflowinc
0
3.7k
AIエージェント×GitHubで実現するQAナレッジの資産化と業務活用 / QA Knowledge as Assets with AI Agents & GitHub
tknw_hitsuji
0
220
Phase06_ClaudeCode実践
overflowinc
0
1.9k
GitHub Copilot CLI で Azure Portal to Bicep
tsubakimoto_s
0
180
ThetaOS - A Mythical Machine comes Alive
aslander
0
160
Zero Data Loss Autonomous Recovery Service サービス概要
oracle4engineer
PRO
4
13k
Kiroで見直す開発プロセスとAI-DLC
k_adachi_01
0
130
CloudFrontのHost Header転送設定でパケットの中身はどう変わるのか?
nagisa53
1
160
Featured
See All Featured
Rebuilding a faster, lazier Slack
samanthasiow
85
9.4k
Ethics towards AI in product and experience design
skipperchong
2
240
What’s in a name? Adding method to the madness
productmarketing
PRO
24
4k
BBQ
matthewcrist
89
10k
The SEO Collaboration Effect
kristinabergwall1
0
400
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
uxyall
0
220
Fireside Chat
paigeccino
42
3.8k
[SF Ruby Conf 2025] Rails X
palkan
2
850
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.3k
Building Experiences: Design Systems, User Experience, and Full Site Editing
marktimemedia
0
450
The Impact of AI in SEO - AI Overviews June 2024 Edition
aleyda
5
770
Transcript
TEST DRIVEN DEVELOPMENT IOS
ABOUT ME ઑ ਗ ▸ 1992.08.19 ▸ CS ҕೞח ࢤ
▸ 2015.12 ~ present at I/O ▸ medium.com/@trilliwon
FROM ONE SAPIENS TO ANOTHER.
झਤ iOS application Frontend
۠ ࣽࢲ۽ ফӝ೧ ࠅө פ ▸ TDD о ޥী ೧
▸ TDD ৵ ೧ঠ ೞחী ೧ ▸ ա TDD ҃ী ೧ ▸ Xcodeীࢲ iOS TDD
WHAT IS TDD?
T D D
TEST DRIVEN DEVELOPMENT
పझ ب ѐߊ
TDD WORKFLOW
पಁೞח పझ ࢿ ࢿػ పझܳ ాҗೞח ٘ ࢿ ࢿೠ ٘
ܻಂష݂
THE THREE LAWS OF TDD
TEST DRIVEN DEVELOPMENT ON IOS पಁೞח పझ ࢿ ▸ Compiler
error = Failing test ▸ Red = Failing test RED
TEST DRIVEN DEVELOPMENT ON IOS ࢿػ పझܳ ాҗೞח ٘ ࢿ
▸ Green = Passing test GREEN
TEST DRIVEN DEVELOPMENT ON IOS ܻಂష݂ ▸ Refactor ▸ ֎߁
▸ ࠂઁѢ ▸ … REFACTOR
TEST DRIVEN DEVELOPMENT ON IOS पಁೞח పझ ࢿ ▸ Compiler
error = Failing test ▸ Red = Failing test RED
TEST DRIVEN DEVELOPMENT ON IOS पಁೞח పझ ࢿ ▸ Compiler
error = Failing test ▸ Red = Failing test RED GREEN
TEST DRIVEN DEVELOPMENT ON IOS ࢿػ పझܳ ాҗೞח ٘ ࢿ
▸ Green = Passing test GREEN GREEN
TEST DRIVEN DEVELOPMENT ON IOS TDD ٜ ▸ ࣗझ٘ ಿ
▸ ਃೠ ٘݅ ࢿೣ ▸ ٣ߡӦ दр ড ▸ ݽٕച ٣ੋ ▸ ਬࠁࣻ ਊࢿ ▸ ܻಂష݂ ਊࢿ ▸ పझ ٘ ޙࢲച
TEST DRIVEN DEVELOPMENT ON IOS TDD ٜ ▸ ࣗझ٘ ಿ
▸ ਃೠ ٘݅ ࢿೣ ▸ ٣ߡӦ दр ড ▸ ݽٕച ٣ੋ ▸ ਬࠁࣻ ਊࢿ ▸ ܻಂష݂ ਊࢿ ▸ పझ ٘ ޙࢲച नх
नх ਃפ.
TEST DRIVEN DEVELOPMENT ON IOS TDD ױ ▸ ۽షఋೝী ࠗ
▸ ࣼ೧חؘ दрѦܿ
TEST DRIVEN DEVELOPMENT ON IOS TDD RULE ▸ Fast ▸
Independent ▸ Repeatable ▸ Self-Validating ▸ Timely
TEST DRIVEN DEVELOPMENT ON IOS TDD RULE // GIVEN //
WHEN // THEN
ӝর೧ঠ ೡ Ѫ
THE THREE LAWS OF TDD
WHY TDD
ѐߊ
: SUPER CLASS ѐߊ : SUB CLASS
HAS A WISDOM
ѐߊ CAN USE WISDOM
ࣘۆ?
ഌٜ
ইח ӡب ޛযࠁҊ оۄ
جܻب ف٘۰ࠁҊ Ѥցۄ
TDDۄח ഌח ܻ ীࢲ ݆ ই ࠅ ࣻ যਃ
पࣻܳ ӝ ਤೠ ഌ
߈ૐоמࢿ ண ನಌ
ண ನಌ
ઃо ৻҅ੋ ҳܳ ஜҕೡѢঠ! ߈ૐ ࠛоמೣ
ޛ 100 بॿীࢲ Փח ߈ૐ оמೣ
ৈӝ ଵৈೞन ݽٚ ٜ࠙ ݓ࠘ਸ ࣗਬೞҊ ҅पѢঠ! ߈ૐ оמೣ
ޛ 100 بॿীࢲ Փח ߈ૐ оמೣ ݆ పझܳ Ѽ٣ݶ Ӓ݅ఀ
જ ۿ ػ
ઃо ৻҅ੋ ҳܳ ஜҕೡѢঠ! ߈ૐ ࠛоמೣ ղ ٘ח ੜ جইтѢঠ
ৈӝ ଵৈೞन ݽٚ ٜ࠙ ݓ࠘ਸ ࣗਬೞҊ ҅पѢঠ! ߈ૐ оמೣ જ
٘݅ ই పझܳ ాҗೞ ޅೣ
যڃоਃ?
যڃ ੋр غযঠ ೞա?
যڃ ਸ ইঠ ೞա?
যڃ ѐߊо غযঠ ೞա?
э ੌೞҊ र ѐߊ
ࡆח ࢚ടਸ ٜ݅ ঋח ѐߊ
যڃоਃ?
ղ ҃
߅ (ਸ)ܳ ҳ۽ ୶о ೞदѷणפө? ۽ જоਃ?
None
ٸ ࢎਊೡ ۄ࠳۞ܻ
https://github.com/trilliwon/JNaturalKorean NO TDD MORE TIME TO DEBUG MORE TIME TO
MAINTAIN NO CONFIDENCE
https://github.com/trilliwon/NaturalKorean TDD CLEAN CODE BEAUTIFUL CODE CONFIDENCE MUCH BETTER
LET'S DIVE IN CODE
None
None
COMMAND + U CONTROL + U
this is A test headline This Is A Test Headline
THE THREE LAWS OF TDD
WORKING CODE TEST CODE RED SYNTAX ERRORܳ ೖೞӝ ਤೠ ٘
पಁೞח పझ
WORKING CODE TEST CODE GREEN ࢿػ పझܳ ాҗೞب۾݅ ࢿػ ٘
ాҗೞח పझ
WORKING CODE TEST CODE REFACTOR ܻಂష݂ ೠ పझ ٘
WORKING CODE TEST CODE RED ࢜۽ పझ ٘ ࢿ ো
FAIL
WORKING CODE TEST CODE GREEN पಁೞח పझܳ ాҗೞח ٘ PASS
ೞח పझ٘
WORKING CODE REFACTOR झਤ झۣѱ ܻಂష݂ ೠ ٘
TEST CODE REFACTOR ֎߁ ܻಂష݂ೠ పझ ٘
None
None
NO Q & A MAY BE
хࢎפ
How to use if not null if true
IOSীࢲ যܳ LOCALIZATIONೞח GORGEOUS ೠ ߑߨ