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
mockito-kotlin
Search
Keisuke Kobayashi
December 15, 2017
Programming
1
530
mockito-kotlin
Android Test Night #2
Keisuke Kobayashi
December 15, 2017
Tweet
Share
More Decks by Keisuke Kobayashi
See All by Keisuke Kobayashi
今日から始める依存性の注入 / First Time Dependency Injection
kobakei
26
7.5k
iOSアプリの技術的負債をどう返済したか / How to repay the technical debt of iOS app
kobakei
2
970
iOSアプリ内で不正なSSL証明書を検知する / SSL Pinning for iOS apps
kobakei
34
12k
Kyashアプリ開発の現場
kobakei
4
2.8k
Review of Google I/O 2017 & Prepare for Google I/O 2018
kobakei
0
320
APIクライアントをCodableで置き換えた話
kobakei
0
1.5k
開発者が知っておきたい通知の歴史
kobakei
9
7.6k
2017年に新規アプリを立ち上げた話
kobakei
2
1.1k
Everything of CI/CD in Kyash Android
kobakei
0
1.6k
Other Decks in Programming
See All in Programming
The Modern View Layer Rails Deserves: A Vision For 2025 And Beyond @ RailsConf 2025, Philadelphia, PA
marcoroth
2
760
状態遷移図を書こう / Sequence Chart vs State Diagram
orgachem
PRO
2
240
スタートアップの急成長を支えるプラットフォームエンジニアリングと組織戦略
sutochin26
1
7.6k
RailsGirls IZUMO スポンサーLT
16bitidol
0
210
Rails Frontend Evolution: It Was a Setup All Along
skryukov
0
300
CIを整備してメンテナンスを生成AIに任せる
hazumirr
0
140
Porting a visionOS App to Android XR
akkeylab
0
890
レベル1の開発生産性向上に取り組む − 日々の作業の効率化・自動化を通じた改善活動
kesoji
1
330
Workers を定期実行する方法は一つじゃない
rokuosan
0
120
GPUを計算資源として使おう!
primenumber
1
280
マッチングアプリにおけるフリックUIで苦労したこと
yuheiito
0
230
生成AI時代のコンポーネントライブラリの作り方
touyou
1
290
Featured
See All Featured
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
126
53k
The Pragmatic Product Professional
lauravandoore
35
6.8k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
108
19k
Making Projects Easy
brettharned
116
6.3k
Typedesign – Prime Four
hannesfritz
42
2.7k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
Faster Mobile Websites
deanohume
308
31k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
60k
RailsConf 2023
tenderlove
30
1.2k
Transcript
mockito-kotlin Keisuke Kobayashi Android Test Night #2
About Me • Keisuke Kobayashi • GitHub, QIita: kobakei •
Twitter: kobakei122 • Kyash, Inc • ݸਓࣄۀओ
mockito-kotlin͍͍ͧ
mockito-kotlin • KotlinͰMockitoΛ͏ͨΊͷϥΠϒϥϦ • https://github.com/nhaarman/mockito-kotlin • ˒800 over
Ͳ͕͍͍͔͜ • ϞοΫ͕ݟ͘͢ͳΔ • Null҆શରԠ • άϩʔόϧؔͷՃ • whenରԠ
Mockito in Java // Java import static org.mockito.Mockito.*; Hoge mock
= mock(Hoge.class); when(mock.sayHello()).thenReturn("Hello"); when(mock.sayBye()).thenReturn("Bye");
Convert to Kotlin // Kotlin import org.mockito.Mockito.* val mock =
mock(Hoge::class.java) `when`(mock.sayHello()).thenReturn("Hello") `when`(mock.sayBye()).thenReturn("Bye")
mockito-kotlin // Kotlin import com.nhaarman.mockito_kotlin.* val mock = mock<Hoge> {
on { sayHello() } doReturn "Hello" on { sayBye() } doReturn "Bye" }
ݟ͍͢
Null҆શରԠ • Null҆શͷ͍ͤͰɺMockitoͷanyͰNPE • NonNullͳҾʹanyΛ͢ͱൃੜ • anyͱanyOrNull
άϩʔόϧؔ • any, anyOrNull • atLeast, only, never • verify
• whenever
when • Mockitoͷwhenϝιου • Kotlinͷwhen༧ޠ • `when`ͱॻ͔͘͠ແ͍ • mockito-kotlinͰΘΓʹwheneveron͕ ͑Δ
mockito-kotlin͍͍ͧ
Thanks!