This document provides an overview of Selenium, an open source tool for automating web application testing. It discusses why and when to automate testing, the key features and components of Selenium including Selenium WebDriver, Selenium Grid, and Selenium IDE. It also covers how to install Selenium and write sample test scripts using Selenium commands. The document explains the architectures of Selenium Grid and the user interface of Selenium IDE. It concludes by discussing other uses of Selenium and the future of testing.

1. Selenium
Test Web Applications Using Selenium
A Web Club NITK Talk
Date : 03.02.2015

2. Test Automation
●
Test automation is the use of software
To set test preconditions.
To control the execution of tests.
 To compare the actual outcomes to predicted
outcomes.
To report the Execution Status.
●
Commonly, test automation involves
automating a manual process already in
place that uses a formalized testing
process.

3. Why and When To Automate?
●
Frequent regression testing
●
Repeated test case Execution is required
●
User Acceptance Tests
●
Faster Feedback to the developers
●
Reduce the Human Effort
●
Test same application on multiple
environments

4. Selenium
●
Selenium is a robust set of tools that supports
rapid development of test automation for web-
based applications.
●
Selenium provides a rich set of testing functions
specifically geared to the needs of testing of a
web application.
●
Selenium operations are highly flexible, allowing
many options for locating UI elements and
comparing expected test results against actual
application behavior.

5. Selenium Features
●
Supports Cross Browser Testing. The
Selenium tests can be run on multiple
browsers.
●
Allows scripting in several languages like
Java, C#, PHP and Python.
●
Assertion statements provide an efficient
way of comparing expected and actual
results.
●
Inbuilt reporting mechanism.

6. Selenium Components
●
Selenium Web Driver
●
Selenium IDE
●
Selenium Remote Control
●
Selenium Grid

7. Selenium Web Driver
● WebDriver is a tool for automating testing web
applications. WebDriver interacts directly with the
browser without any intermediary.
● Multi-browser testing including improved functionality
for browsers.
● Handling multiple frames, multiple browser windows,
popups, and alerts.
● Complex page navigation.
● Advanced user navigation such as drag-and-drop.
● AJAX-based UI elements.

8. Architecture

9. Installation
● http://www.seleniumhq.org/download/
● In order to create scripts that interact with
the Selenium Server (Selenium RC,
Selenium Remote Webdriver) or create
local Selenium WebDriver script you need
to make use of language-specific client
drivers.
● Ruby,Java, C#, Python, Node.js

10. Sample Script to Test a page

11. Most used Commands
Command Description
driver.get("URL") To navigate to an application.
element.sendKeys("inputtext") Enter some text into an input box.
element.clear() Clear the contents from the input box.
driver.switchTo().window("windowName"
)
Move the focus from one window to
another.
driver.navigate().to("URL") Navigate to the URL.
driver.close() Closes the current browser associated
with the driver.
driver.quit() Quits the driver and closes all the
associated window of that driver.
driver.refresh() Refreshes the current page.

12. Selenium - Grid
● Selenium Grid is a tool that distributes the tests across
multiple physical or virtual machines so that we can
execute scripts in parallel (simultaneously). It dramatically
accelerates the testing process across browsers and
across platforms by giving us quick and accurate
feedback.
● Selenium Grid allows us to execute multiple instances of
WebDriver or Selenium Remote Control tests in parallel
which uses the same code base, hence the code need
NOT be present on the system they execute. The
selenium-server-standalone package includes Hub,
WebDriver, and Selenium RC to execute the scripts in
grid.

13. Selenium grid Architecture

14. Selenium IDE
●
Selenium IDE is an integrated development
environment for Selenium tests.
●
It is implemented as a Firefox extension, and
allows you to record, edit, and replay the test in
firefox
●
Selenium IDE allows you to save tests as
HTML, Java, Ruby scripts, or any other format
●
It allows you to automatically add assertions to
all the pages.
●
Allows you to add selenese commands as and
when required

15. Selenium IDE - UI
Start and Stop
Recording
Selenese
Script
Editor
Selenium Log
Replay
Toolbar
Accessor
Area

16. Other Uses of selenium
● Crawling webpages . Also, AJAX crawling.
● Responsive Testing.
● Scraping content from webpages. In
particular, the ones which don't provide an
API and load content lazily using
Javascript.

17. Future Of Testing & Selenium
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18. Thank you :)
Mail : anirudht20@gmail.com