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Selenium Grid – A Scalable Solution for Test Automation

The majority of you will be very knowledgeable about Selenium. While employed by Thoughtworks in 2004, one of the pioneers of test automation, Jason Huggins, developed the first iteration of Selenium. Selenium was created primarily to support the scripting and automation of web application testing. 

The project immediately went open source, and the framework gradually gained more tools. Since that time, Selenium has become one of, if not the most, broadly used software testing frameworks worldwide.

Core Elements of Selenium 

The test case definition is accomplished using the domain-specific language Selenese.

  • You can record test cases and test suites with Selenium IDE, a Firefox plugin, and play them back afterward (but only in Firefox).
  • Selenium WebDriver is a tool that coordinates test replay to the browser and operates on a variety of browsers.
  • Selenium Remote Control is a program that enables you to develop automated user interface tests in any language and execute them remotely against any HTTP website using essentially any current browser.
  • Selenium Grid enables the concurrent coordination and execution of Selenium test suites over a number of servers.

Selenium Grid – Brief Overview

Let’s meet Selenium Grid, one of the family’s newest members. Selenium Grid enables you to manage numerous Selenium instances operating on numerous different hosts. In essence, it gives you the means to build a distributed Selenium test environment. 

The Selenium Grid idea is straightforward. Given the quantity and high level of complexity of the Selenium test cases, they are not as efficient when executed on a single system as we would want. 

We need to link a number of additional systems in order to expedite the process and enable the simultaneous and speedy execution of these test cases. The hub can tell the nodes what to do at each system by configuring these systems once, and they can then follow those instructions. Additionally known as the dispersion of tests, this is also frequently referred to as “distributed testing.”

  • The way it operates is by dividing the tests among the servers (or “nodes”) that are available. When compared to running on a single machine, the execution time will be sped up roughly linearly. It will therefore take around 1/10th as long to finish your tests if you have 10 computers.
  • Selenium Grid is a strong tool for regression testing as a result, where you want to expose your code to as many environments as you can while still trying to cut down on testing time. The Continuous Integration/Continuous Test cycle can be sped up by using it as a potent tool for testing fresh builds in a variety of scenarios and platforms.

Why Choose Selenium Grid?

A tester who chooses Selenium Grid benefits from the following attributes:

  • Selenium is open source, has a long history, and has a strong international community. It aids us if we find ourselves in a bind or need direction or a clear path to take.
  • Free to use – Both people and businesses are welcome to use Selenium for nothing. It aids in lowering the project’s cost.
  • Support for different configurations – Selenium offers support for several configurations, which cover all the main operating systems and web browsers. These configurations, which include older OS and browser versions scattered over several nodes, allow the tester to run their tests.

Prominent Features of Selenium Grid 

  1. Language support 

In order to develop distributed test cases in the language of your choice without having to spend time learning a new one, Selenium Grid 4 comes with a long list of language support.

  1. Cloud-based execution

Selenium Grid 4 moves test execution to the cloud in order to conserve resources locally and make use of a stable and trustworthy infrastructure.

  1. Parallelism

Parallelism is supported by Selenium Grid 4, allowing testers to run test cases concurrently at separate nodes. However, TestNG support is necessary for this.

  1. Integrations

Selenium Grid may execute testing without setting up any nodes or installing any browsers by integrating well with the most important tools and third-party cloud-based technologies.

Wrapping Up

So, this was all you needed to know about Selenium Grid. Being a subsidiary of Sambodhi Research and Communications Pvt. Ltd., Education Nest is a global knowledge exchange platform that empowers learners with data-driven decision making skills. 

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