Selenium Automation Testing Why Selenium is Popular Than any Other Testing Tool
                     Selenium Automation Testing : A Brief 
Introduction to Selenium
What is Selenium?
Selenium tests the GUI and functionality of websites. An automation script generated using 
Selenium directs the browser to navigate on to a page, click on any element, fill up a form, or 
do anything else that standard web or app users are anticipated to do.
Once set up, Selenium allows a highly effective way to create test scenarios, validate its 
   f u  n  ctionality and, reuse such scripts in an automated framework. 
Selenium automation testing performs test cases in three separate modes. Selenium IDE, the 
record-playback mode, logs the test scenarios, and offers an excellent start to write tests, and 
group it, to create a test suite.
Selenium RC or remote-control model starts multiple browsers, one at a time, and performs 
the pre-recorded test-cases. Selenium Grid records and replays Selenium IDE and RC test 
cases, to verify the tests.
Many automation tools deliver more or less the same results. So, why, Selenium 
Automation Testing?
Selenium is an open-source tool. Most of the businesses now rely on open-source automated 
testing tools due to their performance and cost-saving abilities. Selenium automation testing 
performs these objectives well.
Selenium is issued under the Apache 2.0 license, allowing users to download and use it free 
of cost. The active developer community for this open-source tool makes amends for the 
lack of dedicated support that happens for granted with licensed tools.
Features of Selenium
Selenium comes loaded with various features that make the task of developing automated 
scripts accessible. The several components may be selected and chosen, depending on the 
difficulty of the web page.
An easy-to-use interface for the development method makes it even more accessible to 
generate unit tests, exploratory tests, one-off bug generation scripts, and much more.
Selenium offers a selection of alternatives to generate scripts. Apart from the simple choice 
of recording and saving actions by using the web application, with the analysis running in a 
browser, there is also the possibility to use web development tools such as Firebug, to 
generate scripts manually.
Selenium does not limit the selection of build systems, reporting tools, or other features of 
existing frameworks, and integrates well with almost all the conventional tools in the 
market, such as SauceLabs, Hudson, Selenium-Grid, QMetry, and others.
Selenium is as flexible as it gets. It operates on almost all operating systems and supports all 
the browsers in vogue – Mozilla Firefox, Chrome, IE, Opera, and Safari.
Selenium also maintains multiple languages like Perl, Python, PHP, Ruby, Java, and .NET. It is 
not essential to use Selenium’s own script language to write test codes.
The language used for developing the program doesn’t necessitate to be the same used for 
developing the web application. The unmatched adaptability on offer is another plus, 
bringing the previously technically-loaded testing method palatable to non-technical users.
In any case, even redeveloping the test scenarios in Selenium is worth the effort to attain 
option from ruinous license and maintenance costs.
The many services on offer make Selenium the test automation tool of choice for UI, 
regression, unit and acceptance testing, and also Agile, Advanced Programming, and other 
quick-cycle development techniques.