Testing a website with Selenium and Docker

Selenium is a widely-used tool for automating web application testing, supporting various operating systems and browsers, including Chrome, Firefox, and Edge. It can be paired with Selenium Grid to run tests in parallel across multiple machines, enhancing cross-browser testing and scalability. Docker, a containerization platform, can streamline this process by packaging applications into containers that include necessary libraries and dependencies. This combination helps overcome issues related to session creation, cross-browser testing, and scalability by simplifying environment setup and allowing tests to be run on multiple browser versions efficiently. The tutorial demonstrates how to use Selenium and Docker to test a website on Chrome and Firefox, both separately and in parallel, by creating Selenium Grid using Docker Compose. It also covers setting up a project with Node.js, npm, and Jest for running and automating tests, while visualizing the test execution within Docker containers.