Selenium is a portable and popular open-source software-testing framework for web applications. It provides a playback tool for authoring tests without the necessity to acquire knowledge of a test scripting language (Selenium IDE). Selenium also provides a test domain-specific language (Selenese) to write tests in several popular programming languages, including Scala, Groovy, Java, Ruby, C#, PHP, Python, and Perl. The tests can then run against the current and newest web browsers. Selenium deploys on Windows, macOS, and Linux platforms. Selenium is composed of respective components with specific role assists the web application test automation development: 1. Selenium Grid 2. Selenium IDE (Integrated Development Environment) 3. Selenium WebDriver 4. Selenium RC (Remote Control) Today, users access sites and web applications on different platforms, devices, and browsers. Organizations demand robust test automation tools to assess all aspects of their web applications across varied...