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iOS TDD iOS Tech Talk
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Realm
February 20, 2017
Technology
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iOS TDD iOS Tech Talk
TDD (Test-driven Development) for iOS - iOS Tech Talk 2017
Won Cho
Realm
February 20, 2017
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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