fight back android fragmentation

Fight back platform fragmentation!

Best practices in UI testing automation.

Roman Kierzkowski

Bitbar www.bitbar.com

Agenda

1. Platform fragmentation

2. Gravity & Monkey

3. Monkeyrunner

4. Android Instrumentation

5. Robotium

6. Testdroid Recorder

7. Testdroid Cloud

What is platform fragmentation?

Other platforms?

What does fragmentation consist of?

● Android version● Screen resolution & density & diagonal● CPU speed● RAM size● GPU presence & speed● Sensors presence & accuracy● SD presence & capacity● Virtual or real keyboard● Device manufacturer● Custom UI & User preferences

In numbers...

● 13 OS Versions

● Over 800 different models

● Over 300 million Android devices had been activated

● 850 000 activations daily!!!

Platform versions

Data collected during a 14-day period ending on February 1, 2012 (http://developer.android.com/resources/dashboard/platform-versions.html)

Versions 2.1 to 2.3.7 = 94%

Screen Sizes and Denisties

Data collected during a 7-day period ending on February 1, 2012 (http://developer.android.com/resources/dashboard/screens.html)

normal mdpi + normal hdpi = 85.5%

Gravitation & Monkey

● Gravity

● UI/Application Exerciser Monkey

● Stress test application (pseudo-randrom actions)

● Runs inside emulator or device

http://developer.android.com/guide/developing/tools/monkey.html

$ adb shell monkey [options] <event-count>

$ adb shell monkey -s 333 -p your.package.name -v 500

Android Instrumentation Framework● Instrumentation allows to run components without their normal lifecycles

● Android testing is based on JUnit

● JUnit 3 lifecycle (test methods, setUp(), tearDown())

● Separate test project

● Runs inside of the device

● Instrumentation & Application APKs must be signed with the same key!

● For different components different TestCase

● For activities: ActivityInstrumentationTestCase2

● MoreAssert and ViewAsserts

Robotium

● Opensource project (http://code.google.com/p/robotium/)

● On top of Android instrumentation – great simplification

● How does Robotium recognize elements: → Texts → Visible element's indexes → X,Y

● Solo is main class. It contains various methods like: → clickOnImage(int index) → clickOnButton(String text)

→enterText(int index, java.lang.String text)

Robotium Pros & Cons

● Simplifies UI Instrumentation

● UI component aware

● Integrates with JUnit lifecycle

● Open source

● No screenshots logic

● Runs only within single application

Testdroid Recorder

● Eclipse plugin (http://www.testdroid.com/updates/)

● Records monkeyrunner & Robotium

● Record test from APK & Sources

● Introduces R.id identification

● Takes screenshots

● Scalable clicks & drags

● Split testcases into methods

Testdroid cloud

● Run tests against over 100 different real devices

● View test results

● View screenshoots in convienient way

● Use baseline feature to detect broken layouts

● View logs

● Follow your project statistics