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Web Test Automation with Selenium

Vivek Prahlad

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Agenda

Introduction to Selenium

Demo

An overview of the framework, and how it works

Showcase the different ways of using Selenium

FIT style tables

Selenium Remote Control (RC)

Limitations of Selenium

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What is Selenium?

A JavaScript based

Open Source

Web testing tool

That supports testing Web 2.0 applications

On multiple browsers

And multiple Operating Systems

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Quick Demo

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Overview

History: originated from TW Time Sheet application

Extremely popular Open Source Web testing tool

Can be used for Acceptance / Functional testing

Can be used for reproducing bugs

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Using Selenium

Bot mode: Selenium Core

HTML Tables

Driven mode: Selenium Remote Control (RC)

Test cases in language of choice

Record mode: Selenium IDE

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Architecture

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Table or driver based?

Table based approach fine for simple tests.

No programming required

Doesn't scale duplication is a major issue.

Driver approach better for 'Real' test suites

Can develop tests in language of choice:

C#, Java, Ruby, Python, Perl

Easier data management via DB / Excel

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Maintaining Test Suites

Test code is just like production code!

Needs refactoring, abstraction

API for the application

Can build tests from API building blocks

Try to maintain meaning in test names, variable

names, comments, and suite organization

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Evolving Test Suites

Do your test suites break as the app evolves?

The importance of DRY: Don't Repeat Yourself

Minimize changes to test suite as app changes

Avoid redoing / reworking entire test suites

Avoiding duplication simpler for test code: test steps

execute sequentially

Methods, parametrization

To some extent, Object Orientation

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Demo: Refactoring Tests

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Ajax support

Selenium supports testing Web 2.0 applications

Monitor the DOM for completion of Async calls

waitForCondition()

waitForValue()

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Continuous Integration

Run Selenium tests as part of the build

Works with both Core and Driven modes

(Each time a developer checks in, if necessary)

Can generate HTML reports, published to entire team

Helps catch bugs ASAP

Addresses risk of catching bugs late in the cycle

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Limitations

Most limitations valid if using Selenium Core:

Alerts

Same Origin Policy

File uploads

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Summary

Selenium is a testing framework for Web Applications

Drivers allow web testing in language of choice

Test scripts are code: need maintenance, refactoring

Limitations of Selenium

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Thank You!

Check out Selenium at:http://www.openqa.org/selenium

Questions?