What is Selenium? Introduction to Selenium Automation Testing Tools.

About Selenium

Selenium could be a software system testing framework for the net that facilitates the automation of browsers. The atomic number 34 project produces numerous tools for automation testing like atomic number 34 IDE, atomic number 34 device (RC), atomic number 34 Grid and atomic number 34 a pair of.0 & Webdriver. Learning all the tools can offer you totally different|many various|many alternatives} choices for approaching different automation issues. The entire suits of tools result in a rich set of testing functions specially geared to the needs of testing of web application of all types.

Why Selenium

Selenium Online Training is an open-source tool with corporate backing.

– The tests will then be run against most recent net browsers.

– Atomic number 34 deploys on Windows, Linux, and Macintosh platforms.

– It allows recording, editing, and debugging tests.

– Recorded tests are often exported in most language e.g. HTML, Java, .net, Perl, Ruby, etc.

– atomic number 34 has the support of a number of the most important browser vendors WHO have taken (or area unit taking) steps to form atomic number 34 a native a part of their browser.

Selenium Tool Suite:

Selenium isn’t simply one tool however a collection of software’s, every with a distinct approach to support automation testing. It comprises four major components which include:

  1. Selenium Integrated Development Environment (IDE)
  2. Selenium Remote Control (Now Deprecated)
  3. Webdriver
  4. Selenium Grid
  5. Selenium Integrated Development Environment (IDE)

Selenium IDE is enforced as Firefox extension that provides record and playback practicality on check scripts. It permits testers to export recorded scripts in several languages like markup language, Java, Ruby, RSpec, Python, C#, JUnit and TestNG. You can use this exported script in antioxidant RC or Webdriver.

Selenium IDE has restricted scope and also the generated check scripts don’t seem to be terribly strong and transportable.

  1. Selenium Remote Control

Selenium RC (officially deprecated by selenium)allows checkers to put in writing machine-controlled net application UI test in any of the supported programming languages. It also involves an HTTP proxy server which enables the browser to believe that the web application being tested comes from the domain provided by a proxy server.

Selenium RC comes with two components.

  1. Selenium RC Server (acts as an HTTP proxy for web requests).
  2. Selenium RC Client (library containing your programming language code).

The figure given below shows the study illustration of antioxidant RC.

Selenium RC had been considered very powerful for testing complex AJAX-based web UIs under a Continuous Integration System.

  1. Selenium WebDriver

Selenium WebDriver (Selenium 2) is the successor to Selenium RC and is by a long shot the most significant part of Selenium Suite. SeleniumWebDriverprovides a programming interface to make and execute experiments. Test contents are written so as to recognize web components on site pages and after that ideal activity are performed on those components.

Selenium Webdriver performs abundant quicker as compared to antioxidant RC as a result of it makes direct calls to the net browsers. RC on the opposite hand desires Associate in Nursing RC server to act with the online browser.

Since Webdriver directly calls the strategies of various browsers thus we’ve a separate driver for every browser. Some of the foremost wide used net drivers include:

  • Mozilla Firefox Driver (Gecko Driver)
  • Google Chrome Driver
  • Internet Explorer Driver
  • Opera Driver
  • Safari Driver
  • HTML Unit Driver (a special headless driver)
  1. Selenium Grid

Selenium Grid is additionally a very important element of antioxidant Suite that permits America to run our tests on totally completely different machines against different browsers in parallel. In simple words, we can run our tests simultaneously on different machines running different browsers and operating systems.

Get more info: Selenium Training

Selenium Grid follows the Hub-Node design to attain parallel execution of check scripts. The Hub is considered as the master of the network and the other will be the nodes. Hub controls the execution of test scripts on various nodes of the network.

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