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
どんなときにテストを書いた方がいいのか/When should you write a test?
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
Shintani Teppei
June 08, 2020
Programming
1
530
どんなときにテストを書いた方がいいのか/When should you write a test?
Shintani Teppei
June 08, 2020
Tweet
Share
More Decks by Shintani Teppei
See All by Shintani Teppei
allow_retry と Arel.sql / allow_retry and Arel.sql
euglena1215
1
240
AIと”コードの評価関数”を共有する / Share the "code evaluation function" with AI
euglena1215
1
250
ISUCONで型をつける
euglena1215
1
140
3年でバックエンドエンジニアが5倍に増えても破綻しなかったアーキテクチャ そして、これから / Software architecture that scales even with a 5x increase in backend engineers in 3 years
euglena1215
11
5.6k
モジュラモノリス、その前に / Modular monolith, before that
euglena1215
8
1.1k
いつか使える ObjectSpace / Maybe useful ObjectSpace
euglena1215
2
250
rbs-inlineを導入してYARDからRBSに移行する
euglena1215
1
930
Ruby の型に関する活動をやっている話 / Activities related to Ruby types
euglena1215
3
420
そろそろ理解する includes / Understanding includes
euglena1215
1
1k
Other Decks in Programming
See All in Programming
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
700
高速開発のためのコード整理術
sutetotanuki
1
430
Swift at Scale: Where Performance Really Comes From
kateinoigakukun
0
120
360° Signals in Angular: Signal Forms with SignalStore & Resources @ngLondon 01/2026
manfredsteyer
PRO
0
170
Best-Practices-for-Cortex-Analyst-and-AI-Agent
ryotaroikeda
1
120
AIに仕事を丸投げしたら、本当に楽になれるのか
dip_tech
PRO
0
150
Apache Iceberg V3 and migration to V3
tomtanaka
0
210
生成AIを使ったコードレビューで定性的に品質カバー
chiilog
1
300
AIコーディングの理想と現実 2026 | AI Coding: Expectations vs. Reality 2026
tomohisa
0
260
AIプロダクト時代のQAエンジニアに求められること
imtnd
1
430
CSC307 Lecture 08
javiergs
PRO
0
680
要求定義・仕様記述・設計・検証の手引き - 理論から学ぶ明確で統一された成果物定義
orgachem
PRO
1
360
Featured
See All Featured
The Mindset for Success: Future Career Progression
greggifford
PRO
0
250
Docker and Python
trallard
47
3.7k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
9
1.2k
A brief & incomplete history of UX Design for the World Wide Web: 1989–2019
jct
1
300
The Straight Up "How To Draw Better" Workshop
denniskardys
239
140k
Mozcon NYC 2025: Stop Losing SEO Traffic
samtorres
0
150
Documentation Writing (for coders)
carmenintech
77
5.3k
The innovator’s Mindset - Leading Through an Era of Exponential Change - McGill University 2025
jdejongh
PRO
1
99
We Are The Robots
honzajavorek
0
180
Why Our Code Smells
bkeepers
PRO
340
58k
Rails Girls Zürich Keynote
gr2m
96
14k
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
konakalab
0
360
Transcript
©2020 Wantedly, Inc. ͲΜͳͱ͖ʹςετΛॻ͍ͨํ͕͍͍ͷ͔ Jun 3, 2020 - Teppei Shintani
@euglena1215 దͳྔͷςετΛॻͨ͘Ίʹ͕ࣗؾΛ͚͍ͭͯΔ͜ͱ ࣾһݚम 2020
©2020 Wantedly, Inc. 5FQQFJ4IJOUBOJ !FVHMFOB w "VUI4RVBE1SFNJVN4RVBE w ৽ଔ w
3VCZ͕͖ ࣗݾհ
©2020 Wantedly, Inc. దͳྔͷςετ
©2020 Wantedly, Inc. ࠓͷΰʔϧ 1VMM3FRVFTUΛ࡞ͬͨͱ͖ʹ దͳྔͷςετΛॻ͚͍ͯΔ͔ ڳʹखΛͯͯߟ͑Δ͜ͱ͕Ͱ͖Δ ͕ࣗߟ͍͑ͯΔ͜ͱΛݴޠԽͯ͠ΈͨͷͰհ͠·͢
©2020 Wantedly, Inc. ͢͜ͱ͞ͳ͍͜ͱ w ͢͜ͱ • ͲΜͳͱ͖ʹςετΛॻ͘ඞཁੑ͕ߴ͍ͷ͔ • ͲΜͳͱ͖ʹςετΛॻ͘ඞཁੑ͕͍ͷ͔
w ͞ͳ͍͜ͱ • ମܥతͳςετख๏ςετͷྨ → ͕ࣗ͋·ΓΒͳ͍ʢ@qnighy ͕ৄͦ͠͏(͠ΒΜ͚Ͳ)ʣ • TDDͳͲͷಛఆͷϓϩάϥϜ։ൃख๏ → ͕ࣗ͋·ΓΒͳ͍ʢ@stomk ͕ৄͦ͠͏(͠ΒΜ͚Ͳ)ʣ
©2020 Wantedly, Inc. ߦͰ·ͱΊΔͱ ςετίʔυͷඞཁੑ มߋසʷ։ൃਓʷॏཁ
©2020 Wantedly, Inc. ςετίʔυͷඞཁੑมߋසº։ൃਓºॏཁ 1. 1ʹ1มߋ͞ΕΔՕॴͳͷ͔ɺ1ʹ1มߋ͞ΕΔՕॴͳͷ͔ 2. มߋස͕͚Εखಈςετͷํ͕ίεύྑ͍Մೳੑ͋Δ 1. ࣗಈςετ
ϥϯχϯάίετ / Πχγϟϧίετ ߴ 2. खಈςετ ϥϯχϯάίετ ߴ / Πχγϟϧίετ w FY JOJUJBMJ[FS CBUDIpMF มߋස͕ߴ͚Εߴ͍΄Ͳ ςετίʔυͷඞཁੑߴ·Δ
©2020 Wantedly, Inc. ςετίʔυͷඞཁੑมߋසº։ൃਓºॏཁ 1. ͦͷϑΝΠϧΛมߋ͢ΔਓͰͳͯ͘ɺͦͷมߋӨڹΛड͚Δ։ൃऀͷਓ 1. app/models/user.rb Λมߋͨ͠Βbackend։ൃͯ͠Δ΄΅શһ͕ӨڹΛड͚ΔՄೳੑ͕ ߴ͍
2. view ΑΓ controller, controller ΑΓ model ͷํ͕ӨڹΛड͚Δ։ൃऀͷਓଟ͘ͳ Γ͕ͪ 3. ։ൃਓ͕1,2ਓͰ͋Ε͋ΔఔѨჴͷݺٵͰ͍͚ͨΓ͢Δ 1. ʮ͜͜Λมߋ͢Δͬͯ͜ͱ͋ͬͪಉ࣌ʹมߋ͠ͳ͍ͱ͜ͷέʔεͰյΕΔͷͰʁʯ 2. ։ൃਓ͕ଟ͘ͳͬͯ͘ΔͱѨჴͷݺٵ͔ͳΓࠔ 3. Χ݄ޙͷࣗผਓͰ͋Δ͜ͱʹҙ
©2020 Wantedly, Inc. ςετίʔυͷඞཁੑมߋසº։ൃਓºॏཁ 1. ͕ͦ͜յΕͨΒͲͷ͘Β͍ࠔΔ͔ 1. Α͋͘ΔࢦඪɿӨڹϢʔβʔɺച্ 1. ࢀߟɿฏͷதʹ1࣌ؒαʔϏε͕μϯ͢ΔͱXXXXສԁఔͷଛࣦ
͜͜ʹ issue URL ͕ೖΔ 2. ͜ΕΒΛ͋ΔఔΧόʔ͍ͯ͠Δͷ͕ SLI/SLO ର endpoint Ұཡ ͜͜ʹ issue URL ͕ೖΔ 1. ͜ͷ endpoint ͕յΕΔՄೳੑͷ͋Δมߋॏཁ͕ߴ͍ͱࢥͬͯࠩ͠ࢧ͑ͳͦ͞͏
©2020 Wantedly, Inc. ςετΛॻ͔ͳ͍͍ͯ͘έʔεʜʁ ྫ͑ϋοΧιϯ มߋසˠϋοΧιϯऴΘͬͨΒϙΠࣺͯͳͷͰ ΄΅
։ൃਓˠdਓ͘Β͍ʁѨჴͷݺٵͰ௨͡Δ ॏཁˠൃදͰόάΒͳ͚Ε0,ɺച্ͳ͍ͷ Ͱۚમμϝʔδ
©2020 Wantedly, Inc. ͏Δͤ͑ɺͪ͜ͱΒϦϦʔεલͳΜ͡Όʂ ࠷খݶͷਖ਼ৗܥͷΈςετॻ͘ Γςετέʔε͚ͩॻ͍ͯ AQFOEJOHlޙͤͨA 1.
࣮ऀҎ֎͕ςετॻ͘ͱ͖ͷSTEP 1. ͲΜͳςετέʔε͕ଘࡏ͢Δͷ͔Ѳ͢Δ ←͕͜͜লུͰ͖Δ͚ͩͰ͔ͳΓخ͍͠ 2. ςετΛॻ͘
©2020 Wantedly, Inc. ߦͰ·ͱΊΔͱ ςετίʔυͷඞཁੑ มߋසʷ։ൃਓʷॏཁ
©2020 Wantedly, Inc. ࠓͷΰʔϧ 1VMM3FRVFTUΛ࡞ͬͨͱ͖ʹ దͳྔͷςετΛॻ͚͍ͯΔ͔ ڳʹखΛͯͯߟ͑Δ͜ͱ͕Ͱ͖Δ