How is Selenium Grid Useful?

How is Selenium Grid Useful?

Selenium Grid allows us to carry out tests using our tests across numerous machines and web browsers. It’s a part of the Selenium software, which focuses on performing several tests across various browsers, operating systems, and machines. You can connect to it using Selenium Remote by choosing your preferred operating system, browser, and version. If you want to know How is Selenium Grid Useful? Join FITA Academy which offers the best Selenium Training in Chennai with Selenium Certified Professionals. 

Why is the Selenium Grid used?

With Selenium Grid, you can build a straightforward cross-browser infrastructure on several operating systems to disperse test loads and operate across various browsers.

There are many reasons why the Selenium Grid is used. Here are a few

  • If we want to perform our tests on several browsers, browser iterations, and browsers using various operating systems.
  • By executing tests concurrently, it can also shorten the time needed to finish a test suite.

What is a Hub?

A hub in Selenium Grid is a machine that serves as the main location for loading tests. The hub functions as both a server and a centralised command centre for a network of test equipment. Selenium Grid only has one core, and that core serves as the network’s core. When the Hub receives a test with the specified DesiredCapabilities, the Hub looks for a node that fits the specified configuration.

What is a Node?

The test engine in Selenium Grid is given a node to connect to, and the hub is chosen by default. The Hub will conduct the tests using this test engine. A grid network may contain several nodes. A node should support a variety of operating systems and browsers. The hub and the node don’t have to be on the same platform.

Workflow and Architecture for RemoteWebDriver

Similar to how you would use WebDriver locally, you can use RemoteWebDriver. The main distinction is that RemoteWebDriver needs to be set up so that you can run your tests on a different computer.

Client and server are the two components that make up RemoteWebDriver. The server is a Java servlet that may be hosted on any contemporary JEE app server, and the client is your WebDriver test.

  • A developer of test scripts can utilise the RemoteWebDriver implementation class to execute their test scripts through the RemoteWebDriver server on a distant computer.
  • The RemoteWebDriver consists of a server (the hub) and a client (the node)
    • A component called RemoteWebDriverserver monitors a port for requests from RemoteWebDrivers and transmits the appropriate Firefox Driver, Internet Explorer Driver, or Chrome Driver in response to those requests.
    •  Client libraries for language binding that serve as RemoteWebDriver When the client performs tests locally, it converts the requests from your test script into a JSON payload and delivers them through the JSON wire protocol to the RemoteWebDriverserver. FITA Academy is the best institution with the experts to teach at Selenium Online Training and offers Placement Assistance.
  • The WebDriver client libraries will communicate directly with your Firefox Driver, Internet Explorer Driver, or Chrome Driver when you run your tests locally. Now, when you attempt to run your tests remotely, the WebDriver client libraries communicate with the RemoteWebDriverserver, which then communicates with the Firefox, IE, or Chrome Drivers as needed.