Introduction to Selenium | Selenium Training In Hyderabad

 

Selenium Training in Hyderabad

What is Selenium?

Selenium is a free open source automated testing. It is suite for web applications across different browsers and platforms. It is quite like HP Quick Test Pro (QTP). Selenium focuses on automating web-based applications.

Selenium is not a single tool but a suite of software. Then catering to different testing needs of an organization. It has four components.

 1. Selenium Integrated Development Environment

 2. Selenium Remote Control

 3. Web Driver

4. Selenium Grid

At the moment, Selenium RC and Web Driver merged into a single framework to form Selenium 2. Selenium 1, by the way, refers to Selenium RC.

Who developed Selenium?

  Selenium is a collection of different tools; it had different developers as well. Below are the key persons who made notable contributions to the Selenium Project

 Selenium invented by Jason Huggins in 2004. An engineer at Thought Works. He was working on a web application that required frequent testing. The repetitious manual testing of their application was becoming more and more inefficient. He created a JavaScript program that would control the browser's actions. He named this program as the "JavaScriptTestRunner."

 The potential in this idea to help automate other web applications. He made JavaScript Runner open-source which was later re-named as Selenium Core.

Birth of Selenium Remote Control

 Testers using Selenium Core had to install the whole application. The web server local computers because of the restrictions the same origin policy. So another Thought Work’s engineer, Paul Hammant. It decided to create a server that will act as an HTTP proxy to "trick". The browser into Selenium Core and the web application tested come from the same domain. This system became known as the Selenium Remote Control or Selenium 1.0 version.

Birth of Selenium Grid

Selenium Grid invented by Patrick Light body. To address the need for minimizing test execution times as much as possible. He called the system "Hosted QA." It was capable of capturing browser screenshots during significant stages. It also of sending out Selenium commands to different machines.

Birth of Selenium IDE

Shinya Kasatani of Japan created Selenium IDE. A Firefox extension that can automate the browser through a record-and-playback feature. He came up with this idea to further increase the speed in creating test cases. He donated Selenium Project to the Selenium IDE.

Birth of Web Driver

Simon Stewart created Web Driver circa 2006. When browsers and web applications powerful restrictive with JavaScript programs like Selenium Core. It was the first cross-platform testing framework. That could control the browser from the OS level.

Birth of Selenium 2.0.

In 2008, Web Driver and Selenium RC combine more powerful tool called Selenium 2. With Web Driver being the core. Currently, Selenium RC is still developed but only in maintenance mode. Most of the Selenium Project's efforts are now focused on Selenium 2.0.