What is Selenium Grid?

Selenium Grid is part of the Selenium testing suite that allows tests to be run across multiple systems and browsers. Selenium is an open-source framework used to make web applications mainly for testing purposes, but it can also be used for many tasks such as web scraping.

We have Hub and Node elements in Selenium Grid. The hub is installed on the computer where the test is performed. We can configure multiple hubs (think multiple processors/multiple computers) and multiple browsers to run tests on multiple nodes.

So in short, the Selenium grid works simultaneously on different machines and different browsers. Encourage successful testing. It allows you to run parallel tests in different browsers on different systems. That is, multiple tests are run simultaneously against different machines running different browsers and operating systems. Additionally, Selenium-Grid supports full testing. It allows testing to be performed in a complete testing environment.

While Using the Selenium Grid

1. Run simultaneous testing across different browsers and operating systems. This will ensure that the app you are testing is compatible with multiple browsers.
2. Save time with test packages. If you set Selenium Grid to run 4 tests simultaneously, the entire suite can run about 4x faster.

The grid concept was introduced to support the success of the experiment.

Advantages of Selenium Grid

1. Short processing time: Reduces the total time required for the test suite due to its optimization. This is especially important in an agile development environment where providing immediate feedback on product quality is critical.
2. Centralized Command: Provides centralized control and management even though the assessment is distributed across multiple nodes. This includes managing deployment data, focusing on test execution, and configuring nodes.
3. Parallel execution of tests: One of its main features is the ability to run tests in parallel on multiple machines. This provides faster feedback to your application, reducing overall test execution time.

Selenium is a popular open-source tool that automates web applications and allows you to run tests on your website. It supports browsers and programming languages ​​including PHP, Python, JavaScript, Java, C#, and Ruby.

Selenium has many features but the main components of Selenium testing tools are:

1. Selenium IDE
2. Selenium WebDriver
3. Selenium Grid 

These components work together to make the website easier to use, with the WebDriver acting as the browser controller and the IDE enabling users to interact with the website. Test the website on different machines and try the browser testing instructions to build and complete it.