What is Selenium and its Components

Selenium is a popular open-source automation testing tool used for web application testing. Its main components include:

1. Selenium WebDriver: This component is used to create robust and browser-based regression automation tests.
2. Selenium IDE: A Firefox plugin used for developing Selenium test cases.
3. Selenium Grid: Used for parallel test execution on multiple machines, saving time in test execution.

Overall, Selenium is a powerful tool for automating web browsers and testing web applications efficiently.