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

Summary of Diagnose unreliable code with test ...

Avatar for shunsuke sato shunsuke sato
June 25, 2021
Programming
1
1k

Summary of Diagnose unreliable code with test repetitions

Avatar for shunsuke sato

shunsuke sato

June 25, 2021
Tweet

More Decks by shunsuke sato

See All by shunsuke sato
要約 "Add Live Text interaction to your app"
Avatar for shunsuke sato ushisantoasobu
1
1.1k
ANDPAD iOS開発の生態系と課題 - 最近取り組み始めた「マルチモジュール化」について
Avatar for shunsuke sato ushisantoasobu
1
800
実践！「みてね」における自動生成活用例
Avatar for shunsuke sato ushisantoasobu
5
6.4k
5 Tips when test fails randomly
Avatar for shunsuke sato ushisantoasobu
2
3.7k
Better Way for Test Data Generation??
Avatar for shunsuke sato ushisantoasobu
1
2.8k
iOS/Androidのサブスクリプション実装における違いをざっと振り返る
Avatar for shunsuke sato ushisantoasobu
2
1.7k
24時間でMacアプリを作ってスベってきた話
Avatar for shunsuke sato ushisantoasobu
0
2.2k
Redirectable in App?
Avatar for shunsuke sato ushisantoasobu
2
950
iOSのClean Architecture テンプレ自動生成を支える技術 / generating CA's templates
Avatar for shunsuke sato ushisantoasobu
0
280

Other Decks in Programming

See All in Programming
Kiroの仕様駆動開発から見えてきたAIコーディングとの正しい付き合い方
Avatar for clshinji clshinji
1
210
MCPでVibe Working。そして、結局はContext Eng（略）/ Working with Vibe on MCP And Context Eng
Avatar for r-kagaya rkaga
5
2.3k
Swift Updates - Learn Languages 2025
Avatar for Yuta Koshizawa koher
2
470
MCPで実現するAIエージェント駆動のNext.jsアプリデバッグ手法
Avatar for NakamuraTakumi nyatinte
7
1.1k
アプリの "かわいい" を支えるアニメーションツールRiveについて
Avatar for 上ちょ / uetyo uetyo
0
260
基礎から学ぶ大画面対応(Learning Large-Screen Support from the Ground Up)
Avatar for Tomoya Miwa tomoya0x00
0
430
Android端末で実現するオンデバイスLLM 2025
Avatar for Masayuki Suda masayukisuda
1
150
Navigating Dependency Injection with Metro
Avatar for Zac Sweers zacsweers
3
260
機能追加とリーダー業務の類似性
Avatar for Rinchoku rinchoku
2
1.3k
奥深くて厄介な「改行」と仲良くなる20分
Avatar for おぐえもん oguemon
1
520
ユーザーも開発者も悩ませない TV アプリ開発 ~Compose の内部実装から学ぶフォーカス制御~
Avatar for Daichi Takeya taked137
0
160
2025 年のコーディングエージェントの現在地とエンジニアの仕事の変化について
Avatar for azukiazusa azukiazusa1
24
12k

Featured

See All Featured
Code Review Best Practice
Avatar for Trisha Gee trishagee
70
19k
KATA
Avatar for Megan Lloyd mclloyd
32
14k
The Cost Of JavaScript in 2023
Avatar for Addy Osmani addyosmani
53
8.9k
Building Applications with DynamoDB
Avatar for Matt Wood mza
96
6.6k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
8
520
CSS Pre-Processors: Stylus, Less & Sass
Avatar for Bermon Painter bermonpainter
358
30k
Building Adaptive Systems
Avatar for Chris Keathley keathley
43
2.7k
Bash Introduction
Avatar for André Augusto Costa Santos 62gerente
615
210k
BBQ
Avatar for Matthew Crist matthewcrist
89
9.8k
The World Runs on Bad Software
Avatar for Brandon Keepers bkeepers
PRO
70
11k
Improving Core Web Vitals using Speculation Rules API
Avatar for Sergey Chernyshev sergeychernyshev
18
1.1k
Facilitating Awesome Meetings
Avatar for Lara Hogan lara
55
6.5k

Transcript

  1. Summary of “Diagnose unreliable code with test repetitions” at WWDC

    2021 !ू·Ε4XJGU޷͖ʂ4XJGUѪ޷ձεϐϯΦϑ88%$ηογϣϯཁ໿ձ

  2. ࣗݾ঺հ

  3.  ໊લࠤ౻ढ़ี  ৬ۀϞόΠϧΞϓϦΤϯδχΞʢJ04ΛϝΠϯʹ"OESPJE΋ͪΐͬͱʣ  ॴଐגࣜձࣾΞϯυύου  ʮݐங%9ʯΛ΍͍ͬͯΔձࣾ  ࠓ೥ͷJ04%$ͷϓϥνφεϙϯαʔ

     5XJUUFS!VTIJTBOUPBTPCV  झຯίʔώʔɺαοΧʔɾϑοταϧ

  4. Diagnose unreliable code with test repetitions

  5. ҰݴͰ·ͱΊΔͱ ʮෆ҆ఆͳςετʢ࣌ʑίέΔςετʣʯΛ௚ͨ͢Ίʹ ʮςετͷ܁Γฦ࣮͠ߦʯػೳ͕௥Ճ͞Εͨ

  6.  ηογϣϯͷߏ੒  ʮςετͷ܁Γฦ࣮͠ߦʯػೳͷ֓ཁ  ʮςετͷ܁Γฦ࣮͠ߦʯػೳΛ༻͍ͨσϞ  5JQTʢYDPEFCVJMEίϚϯυ·ΘΓʣ

  7.  ηογϣϯͷߏ੒  ʮςετͷ܁Γฦ࣮͠ߦʯػೳͷ֓ཁ  ʮςετͷ܁Γฦ࣮͠ߦʯػೳΛ༻͍ͨσϞ  5JQTʢYDPEFCVJMEίϚϯυ·ΘΓʣ

  8. ʮςετͷ܁Γฦ࣮͠ߦʯػೳͷ֓ཁ

  9.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ

  10.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ

  11.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ  ෆ҆ఆͳςετΛ௚͢ͷ͕೉͍͠ཧ༝

  12.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ  ෆ҆ఆͳςετΛ௚͢ͷ͕೉͍͠ཧ༝  ࠶ݱ͢ΔʢίέΔʣͷ͕೉͍͠

  13.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ  ෆ҆ఆͳςετΛ௚͢ͷ͕೉͍͠ཧ༝  ࠶ݱ͢ΔʢίέΔʣͷ͕೉͍͠  ͦͷղܾํ๏ͷखஈͷ͕̍ͭʮςετΛ܁Γฦ͢ʯ͜ͱ

  14.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ  ෆ҆ఆͳςετΛ௚͢ͷ͕೉͍͠ཧ༝  ࠶ݱ͢ΔʢίέΔʣͷ͕೉͍͠  ͦͷղܾํ๏ͷखஈͷ͕̍ͭʮςετΛ܁Γฦ͢ʯ͜ͱ

     ৽͘͠௥Ճ͞ΕΔʮςετͷ܁Γฦ࣮͠ߦʯػೳʹ͸̏ͭͷϞʔυ͕͋Δ

  15.  ෆ҆ఆͳςετ͕ੜ·ΕΔݪҼ  ڝ߹ঢ়ଶ؀ڥґଘάϩʔόϧεςʔτ֎෦αʔϏεͱͷ࿈ܞ  ෆ҆ఆͳςετΛ௚͢ͷ͕೉͍͠ཧ༝  ࠶ݱ͢ΔʢίέΔʣͷ͕೉͍͠  ͦͷղܾํ๏ͷखஈͷ͕̍ͭʮςετΛ܁Γฦ͢ʯ͜ͱ

     ৽͘͠௥Ճ͞ΕΔʮςετͷ܁Γฦ࣮͠ߦʯػೳʹ͸̏ͭͷϞʔυ͕͋Δ  ͦΕͧΕͲ͏͍ͬͨಈ͖Λ͢Δͷ͔ɾ༻్͸Կ͔ɺ͕͜ͷηογϣϯͷ Ұ൪େࣄͳͱ͜Ζ

  16. 'JYFEJUFSBUJPOT

  17.  ੒ޭࣦഊ໰Θͣɺࢦఆͨ͠ճ਺෼ςετΛ࣮ߦ͢Δ  ༻్ʮςετʹෆ҆ఆ͕͞ͳ͍͔ʯΛ֬ೝ͢ΔͨΊ 'JYFEJUFSBUJPOT

  18. 6OUJMGBJMVSF

  19.  ࢦఆͨ͠ճ਺෼ςετΛ࣮ߦ͢Δ͕ɺࣦഊ࣌఺Ͱऴྃ͢Δ  ༻్ʮෆ҆ఆͳςετΛ௚͢ʢσόοά͢Δʣʯͱ͖ʹར༻͢Δ 6OUJMGBJMVSF

  20. 3FUSZPOGBJMVSF

  21.  ࢦఆͨ͠ճ਺෼ςετΛ࣮ߦ͢Δ͕ɺ੒ޭͨ࣌͠఺Ͱऴྃ͢Δ  ༻్ʮ͸͡Ί͸ࣦഊ͢Δ͕͍ͣΕ੒ޭ͢ΔΑ͏ͳςετʯΛಛఆ͢ΔͨΊ 3FUSZPOGBJMVSF

  22. ʮςετͷ܁Γฦ࣮͠ߦʯػೳΛ༻͍ͨσϞ

  23. ࠷ۙ$*Ͱςετ͕࣌ʑίέΔ͜ͱʹؾͮ͘

  24. ʮςετͷ܁Γฦ࣮͠ߦʯػೳΛҰ࣌తʹΦϯʹͯ͠࠶౓$*ͰςετΛ࣮ߦͯ͠ΈΔ

  25. ΍ͬͺΓϥϯμϜͰίέΔΑ͏ͩ

  26. ϩʔΧϧͰ΋࠶ݱ͢Δ͔ࢼͯ͠ΈΑ͏ʢz3VOUFTU4PNF 3FQFBUFEMZzΛબ୒ʣ

  27. l'JYFEJUFSBUJPOTzϞʔυʢճ਺͸ʹࢦఆʣͰ࣮ߦ

  28. ϩʔΧϧͰ΋ϥϯμϜͰίέΔ͜ͱ͕࠶ݱͰ͖ͨʂʢճίέͨʣ

  29. ϥϯμϜͰίέΔݪҼΛಛఆ͠Α͏ʢl6OUJMGBJMVSFzϞʔυͰ࣮ߦʣ

  30. ςετ͕ίέͨͱ͖ʹσόοΨ͕ىಈ͞ΕΔʂ

  31. मਖ਼Ͱ͖ͨΒ࠶౓z'JYFEJUFSBUJPOTzϞʔυͰ࣮ߦͯ͠ΈΔ

  32. ճςετ͕੒ޭͨ͠🎉ʢ͜ͷςετ͔Βෆ҆ఆ͕͓ͦ͞Β͘ফ͑ͨʣ

  33. ·ͱΊ

  34.  ෆ҆ఆͳςετʢ࣌ʑίέΔʣͱ͍͏΋ͷ͕͋Δ  ͦͷ໰୊ಛఆͷͨΊͷखஈͷ͕̍ͭʮςετͷ܁Γฦ࣮͠ߦʯ  ৽͘͠ʮςετͷ܁Γฦ࣮͠ߦʯͷػೳ͕௥Ճ͞ΕͨͷͰɺෆ҆ఆͳςετ ͕ݟ͔ͭͬͨΒɺ͜ͷػೳͰ໰୊ಛఆɾमਖ਼Ͱ͖ͳ͍͔ࢼͯ͠ΈΑ͏

  35. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠😊