From Desktop to Wearable to Testing Belgium Testing Days 2015 Alfonso Nocella, Maveryx.

From Desktop to Wearable to Testing

Belgium Testing Days 2015

Alfonso Nocella, Maveryx

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Summary

From Desktop to Mobile to Wearable

Testing : Diversity leads to Complexity

“SHE” : Shrink, Hide, Eliminate

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SummaryFrom Desktop to Mobile to Wearable




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From Desktop to Mobile to Wearable

UNIVAC I – 1951

Apple II – 1977

IPhone – 2007

Glass – 2012

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Different devices, architectures …

5.8’’ – … – 10’.7’

2.8’’ – … – 6’’

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Different operating systems …

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Different frameworks …

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And now… (?!?)

Devices…

Applications…

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Cross-Platform App Development

Companies are requested to deliver their software products

not only for PC but also, and sometimes primarily, for mobile

devices

And Testing?(automation)

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Diversity is often synonym of Complexity

Problem: proliferation of test artifacts (tools, scripts, data,

UI maps …) to be developed, captured, & maintained upon

passing from one environment to another, with a significant

impact on time, effort and costs.

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“SHE” : handle diversity

“SHE” : Shrink, Hide, Embody (design principle)

[J. Maeda : The Laws of Simplicity]

“SHE” : Shrink, Hide, Eliminate (software testing)

Shrink : test design

Hide : complexity

Eliminate: unnecessary artifacts (UI Maps et al.)

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An Example

Test Tool : Maveryx

Test Data : Excel

Test IDE : Eclipse (Juno)

JDK / JRE : v1.8

Android : v5.0

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Shrink. Test Design.

Write once, run many. Design tests that can be run without

modification on different devices.

Pros: reduced number of scripts to be developed and

maintained

Cons: could add a little bit complexity into the tests

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Shrink. Method.

1. Identify common features

2. Create the tests (common features)

3. Identify differences

4. Manage differences

5. Create new tests (for unmanageable differences)

(*) Use a Data-driven approach (both for UI and test data)

(**) Could use a Keyword-driven approach

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Shrink. Method.


2. Create the tests



5. Create new tests

Common features are all characteristics

(functional, UI…) that can be tested “as is”,

without any modification.

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Shrink. Method.


2. Create the tests



5. Create new tests

… and much more …

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Shrink. Method.


2. Create the tests



5. Create new tests

Differences occur in:

• Labels (in yellow)

• Paths (e.g. menus, screens…)

• …

And are:

• Manageable (in the same script)

• Un-manageable

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Shrink. Method.


2. Create the tests



5. Create new tests

Use a data driven approach to store data

for each platform.

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Shrink. Method.


2. Create the tests



5. Create new tests

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Hide. Complexity.

Supporting, device-dependent functions should be “hidden” to

the testers and managed into the framework or in high-level

libraries.

Pros: more readable and maintainable tests.

Testers stay focused on writing tests rather than on supporting

functions.

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Hide. Complexity.

Supporting / device-dependent functions concern:

• Launching the application-under-test

• Switch between “views” (click, swipe, …)

• Select the device / platform to run the test on

• Using Navigation buttons ( )

• …

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Hide. Complexity. Example

• Select the device / platform to run the test on

In general you can use

JUnit’s @Rule feature

or custom annotations

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Eliminate. The Unnecessary.

Automating GUI-based applications on multiple devices and

platforms require many sets of GUI Maps (aka Test Object

Maps) to be captured and maintained.

It is a huge set of data to handle and a time consuming task.

Pro: …work on the important: write more tests.

Cons: you have to learn or develop a “new”

Test Engine.

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Eliminate. GUI Maps.

• A GUI Map describes the test objects in the application-under-test

• It is used by the automation tool to recognize the UI objects to test

• Each script is associated with a GUI Map

Our Approach

• A test automation engine in continuous development at

Maveryx together with the Engineering dept. of Napoli

University

• to which contributed also people from Nokia and Intel

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At runtime during test execution

takes “snapshots” of the current user interface

… and turn them into a XML documents

Information about UI elements includes: Name / Identifier {caption, tooltip …}Role / Type {button, text, checkbox …}Status {enabled, editable …}…

GUI MAPor

Image

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• “Classical” to Fuzzy matching algorithms to unambiguously

recognize and locate objects during test execution

• “Geolocation” of objects in the User Interface (TOP, BOTTOM, LEFT,

RIGHT …)

• Automatically accommodate UI changes without modifying the tests

TOP

BOTTOM

LEFT

RIGHT

CENTER

TOP

BOTTOM

LEFT

RIGHT

CENTER

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Conclusions

• Nowadays SW applications are designed to run on different devices,

from desktop to mobile to wearable

• The issue: proliferation of test artifacts (tools, scripts, data, UI maps…)

to be developed, captured, and maintained

impact on time, effort & costs

• A viable solution “SHE”:

• Shrink Test Design

• Hide Complexity

• Eliminate Unnecessary

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[email protected]

From Desktop to Wearable to Testing Belgium Testing Days 2015 Alfonso Nocella, Maveryx.

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