Android Build Server presentation by Antoine Campbell at the March 10, 2015 Charlotte Android Developers Meetup. The meetup is hosted monthly in uptown Charlotte at the Skookum Digital Works headquarters.

1. Others talk,
We listen.
Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
The Android Build Server
Antoine Campbell

2. Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
2
• Background
• Inspiration (Google promised, GTAC 2013: Android Testing at Scale)
• Goals
• Approach (circa 2013)
• Pains
• Approach
• Demo
• Build Machine
• Questions
• Jenkins Setup Screenshots
Overview

3. Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
3 Background
• UNC-Charlotte
• B.A./M.S. Computer Science
• Android Developer
• 2 client apps in prod, 4 supported
• iOS Developer
• 1 enterprise app in prod
• Web Services (SOAP, REST)
• 2 client apps in prod
• Game Developer (former)
• CT native / NC native
• CapTech Consulting – 3rd year

4. Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
4
• Setup simple build server
• Test Android apps
• API levels
• Screen sizes
• Languages
• Export screenshots
• Gather test coverage
• Gather sonar report
• One-click-esqueness
• Portable
Goals

5. Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
5 Inspiration

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6
• Ummm……so how do we get it?
• Work at Google
Inspiration

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7
• Jenkins
• Multi-configuration Project
• Build Matrix {API-Level}
• Ant
• Android Emulator Jenkins Plugin
• Automatic emulator creation
• Snapshots
• Robotium
• Emma Code Coverage
• UIAutomator
Approach (circa 2013)

8. Copyright © 2014 CapTech Ventures, Inc. All rights reserved.
8 Approach (circa 2013)

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9
• Library projects
• Setup local properties for all projects
• Android Emulator Jenkins Plugin
• Incompatible combinations
• Emulator unlocking not guaranteed
• Windows 7 PC – AMD Chipset
• Limited emulator options
Pains

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10
• Jenkins
• Multi-configuration Project
• Build Matrix {Emulator, Language}
• Gradle (Wrapper)
• Jacoco Code Coverage Jenkins Plugin
• Android Emulator Jenkins Plugin
• Static Emulators (Disabled animations)
• Espresso
• Robotium
• Screenshots Only
• Sonar
• Not Windows
Approach

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11
• Espresso
• Older API levels may idle main thread before transitions
• Thread.sleep still needed on older API levels
• Android Emulator Jenkins Plugin
• Still not guaranteed to unlock device
• Fixed with shell commands to unlock device
• Android Gradle Plugin
• Pure unit tests not a possibility
• Next version will support!
More Pains

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12
DEMO
Demo

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13
• Lenovo ThinkServer TS140 (Core i3-4130 3.4GHz) - $269
• Dual core
• 16 GB ECC Ram - $169
• 256 GB SSD – Free (Thanks Larry) - ~$109
• CentOS 7 – Free
• Total ~ $438
Build Machine

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14
• Multiple configurations running simultaneously
• Automatic job creation for branching
• Actually removing Thread.sleep from tests
• Google promised
• Complete test for home-screen widgets
• UIAutomator
• MonkeyRunner tests
• RoboElectric tests
• Blog
What’s Next?

15. 15 Questions
Demo App: https://github.com/antoinecampbell/GithubUserBroswer
Email: Antoine.S.Campbell@gmail.com
Github: antoinecampbell
Google+: Antoine.S.Campbell@gmail.com
Twitter: N/A (coming soon……maybe)
Blog: http://antoine-campbell.com
Work Blog: http://www.captechconsulting.com/blog/antoine-campbell

16. 16 Jenkins Setup Screenshots – Jenkins Plugins

17. 17 Jenkins Setup Screenshots – Jenkins Plugins

18. 18 Jenkins Setup Screenshots – Jenkins Settings

19. 19 Jenkins Setup Screenshots – Jenkins Settings

20. 20 Jenkins Setup Screenshots – Config Matrix & Emulator

21. 21 Jenkins Setup Screenshots - Build

22. 22 Jenkins Setup Screenshots – Post Build

23. 23 Jenkins Setup Screenshots – Post Build

24. 24 Sonar Screenshots