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
Unit Testing While Using RxJava 2
Search
Elvis Lin
December 27, 2017
Programming
1
380
Unit Testing While Using RxJava 2
Introduce how to write a unit testing while you use RxJava 2 in your program
Elvis Lin
December 27, 2017
Tweet
Share
More Decks by Elvis Lin
See All by Elvis Lin
Protect Users' Privacy in iOS 14
elvismetaphor
0
54
Dubugging Tips and Tricks for iOS development
elvismetaphor
0
54
Strategies of Facebook LightSpeed project
elvismetaphor
0
90
Background Execution And WorkManager
elvismetaphor
2
490
作為一個跨平台的 Mobile App 開發者,從入門到放棄!?
elvismetaphor
2
520
Dependency Injection for testability of iOS app
elvismetaphor
1
1.4k
Briefly Introduction of Kotlin coroutines
elvismetaphor
1
310
MotionLayout Brief Introduction
elvismetaphor
1
330
Chapter 10. Pattern Matching with Regular Expressions
elvismetaphor
0
50
Other Decks in Programming
See All in Programming
はじめてのカスタムエージェント【GitHub Copilot Agent Mode編】
satoshi256kbyte
0
160
AIエージェントの設計で注意するべきポイント6選
har1101
6
3.1k
LLM Observabilityによる 対話型音声AIアプリケーションの安定運用
gekko0114
2
160
AIの誤りが許されない業務システムにおいて“信頼されるAI” を目指す / building-trusted-ai-systems
yuya4
7
4.3k
Graviton と Nitro と私
maroon1st
0
160
Pythonではじめるオープンデータ分析〜書籍の紹介と書籍で紹介しきれなかった事例の紹介〜
welliving
3
780
16年目のピクシブ百科事典を支える最新の技術基盤 / The Modern Tech Stack Powering Pixiv Encyclopedia in its 16th Year
ahuglajbclajep
4
740
CSC307 Lecture 01
javiergs
PRO
0
670
ELYZA_Findy AI Engineering Summit登壇資料_AIコーディング時代に「ちゃんと」やること_toB LLMプロダクト開発舞台裏_20251216
elyza
2
1k
[AtCoder Conference 2025] LLMを使った業務AHCの上⼿な解き⽅
terryu16
6
1k
re:Invent 2025 トレンドからみる製品開発への AI Agent 活用
yoskoh
0
620
クラウドに依存しないS3を使った開発術
simesaba80
0
220
Featured
See All Featured
What does AI have to do with Human Rights?
axbom
PRO
0
1.9k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Sam Torres - BigQuery for SEOs
techseoconnect
PRO
0
170
The Curse of the Amulet
leimatthew05
0
7.2k
Facilitating Awesome Meetings
lara
57
6.7k
Navigating the Design Leadership Dip - Product Design Week Design Leaders+ Conference 2024
apolaine
0
150
Side Projects
sachag
455
43k
Between Models and Reality
mayunak
1
160
Game over? The fight for quality and originality in the time of robots
wayneb77
1
78
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
133
19k
Data-driven link building: lessons from a $708K investment (BrightonSEO talk)
szymonslowik
1
880
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Transcript
如何對使⽤用 RxJava 的 程式做 Unit Test Elvis Lin 2017-12-27@Android Taipei
None
如何測試 Asynchronous Behavior 其實我想說的是
(Synchronous) Long Job Model WebClient Server 準備讀資料 資料回傳 被卡住
(Asynchronous) Long Job Model WebClient Server 準備讀資料 資料回傳 繼續執⾏行行 其他⼯工作
同步的單元測試 • doSyncCall(); • readResult(); • assertResult();
非同步的單元測試? • doAsyncCall(); • sleep(aWhile); • readResult(); • assertResult();
非同步的單元測試 — 基本技巧 • Callback • doAsyncCall(callback); • Pooling
非同步的單元測試 — Pooling doAsyncCall(); startTime = Time.now(); while (!responseReceived) {
if (Time.now() - startTime > waitLimit) throw new TestTimeoutException(); sleep (pollingInterval); } readResult(); assertResult();
在 RxJava 實作 Unit Test • 拆解 Observable 跟 Observer
• 使⽤用 TestObserver 與 TestScheduler • 使⽤用 Interface 隔離實作
拆解 Observer 跟 Observable
使⽤用 TestObserver / TestSubscriber • 範例例:https:// gist.github.com/ elvismetaphor/ 2188fd635d8e3308308bd05c59cf 63fa
使⽤用 Interface 隔離實作
重要的事情說三兩兩遍 • 拆解 Observable 跟 Observer • 使⽤用 TestObserver 與
TestScheduler • 使⽤用 Interface 隔離實作
參參考資料 • Asynchronous Behavior http://teddy-chen-tw.blogspot.tw/ 2012/12/3asynchronous-behavior.html • Testing RxJava2 https://www.infoq.com/articles/Testing-
RxJava2 • Testing asynchronous RxJava code using Mockito https://medium.com/@fabioCollini/testing- asynchronous-rxjava-code-using- mockito-8ad831a16877