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Selenium: Definition, How it works and Why you need it JNNC Technologies

February 10, 2022

 

Selenium: Definition, How it works and Why you need it

What is Selenium?

Selenium is an open-source tool that automates web browsers. It provides a single interface that lets you write test scripts in programming languages like Ruby, Java, NodeJS, PHP, Perl, Python, and C#, among others.

A browser-driver then executes these scripts on a browser-instance on your device (more on this in a moment).

Selenium WebDriver

Also known as Selenium 2.0, WebDriver executes test scripts through browser-specific drivers. It consists of:

API

Application Programming Interface. Ports test scripts you write in Ruby, Java, Python, or C# to Selenese (Selenium’s own scripting language), through bindings.

Library

Houses the API and language-specific bindings. Although plenty of third-party bindings exist to support different programming languages, the core client-side bindings supported by the main project are: Selenium Java (as selenium jar files), Selenium Ruby, Selenium dotnet (or Selenium C#, available as .dll files), Selenium Python, and Selenium JavaScript (Node).

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